Installation, Operation and Maintenance Manualmanual, may cause harmful interference to radio...

Installation, Operation andMaintenance Manual

AdjustaAdjustaAdjustaAdjustaAdjustable Frble Frble Frble Frble Frequencequencequencequencequency Dry Dry Dry Dry Driviviviviveeeee

1703 Ser1703 Ser1703 Ser1703 Ser1703 Series 7.5 thries 7.5 thries 7.5 thries 7.5 thries 7.5 through 100 ough 100 ough 100 ough 100 ough 100 AmpAmpAmpAmpAmp

9/00 Revision A 23-6088-00

Rotating shafts and electrical equipment can be hazardous. Therefore, it is stronglyrecommended that all electrical work conform to the National Electrical Code and alllocal regulations. Installation, start-up and maintenance should be performed only byqualified personnel.

Factory recommended procedures, included in this manual, should be followed. Alwaysdisconnect electrical power before working on the unit.

Although shaft couplings or belt drives are generally not furnished by the manufacturer,rotating shafts, couplings and belts must be protected with securely mounted metalguards that are of sufficient thickness to provide protection against flying particles suchas keys, bolts and coupling parts. Refer to OSHA Rules and Regulations paragraph1910.219 for guards on mechanical power transmission apparatus. Even when the motoris stopped, it should be considered “alive” as long as its controller is energized. Keephands away from the output shaft until the motor has completely stopped and power isdisconnected from the controller.

Motor control equipment and electronic controls are connected to hazardous line voltages. Whenservicing drives and electronic controls, there will be exposed components at or above line potential.Extreme care should be taken to protect against shock Stand on an insulating pad and make it a habit touse only one hand when checking components. Always work with another person in case of anemergency. Disconnect power whenever possible to check controls or to perform maintenance. Be sureequipment is properly grounded. Wear safety glasses whenever working on electronic control or rotatingequipment.

Federal CommFederal CommFederal CommFederal CommFederal Comm unications Commissionunications Commissionunications Commissionunications Commissionunications Commission Radio Frequenc Radio Frequenc Radio Frequenc Radio Frequenc Radio Frequenc y Interfy Interfy Interfy Interfy Interf erence Statementerence Statementerence Statementerence Statementerence Statement

NOTE: This equipment has been tested and found to comply with the limits for a Class Adigital device, pursuant to Part 15 of the FCC Rules. These limits are designed to providereasonable protection against harmful interference when the equipment is operated in acommercial environment. This equipment generates, uses and can radiate radiofrequency energy and, if not installed and used in accordance with the instructionmanual, may cause harmful interference to radio communications. Operation of thisequipment in a residential area is likely to cause harmful interference in which case theuser will be required to correct the interference at his own expense. The user is cautionedthat any changes or modifications not expressly approved by the party responsible forcompliance could void the user's authority to operate the equipment.

Since improvements are continually being made, the enclosed data is subject to changewithout notice. Any drawings are for reference only, unless certified. For additionalinformation contact Graham Service Department.

Copyright © 1998, Graham, Division of Danfoss Inc.

DDDDDANGERANGERANGERANGERANGER

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TTTTTable of Contentsable of Contentsable of Contentsable of Contentsable of Contents

PagePagePagePagePage

General ..................................................................................................... 1Receipt of Shipment .................................................................................... 1Storage ..................................................................................................... 1Handling ..................................................................................................... 1

Section 1.Section 1.Section 1.Section 1.Section 1. InstallationInstallationInstallationInstallationInstallation1.1 Mounting .................................................................................... 11.2 Temperature and Ventilation .................................................... 1

Section 2.Section 2.Section 2.Section 2.Section 2. WiringWiringWiringWiringWiring2.1 Input Voltage .............................................................................. 42.2 Ground Connections ................................................................... 42.3 Input Disconnect and Input Fuses ............................................ 42.4 Isolation Transformer ................................................................ 42.5 Input Wiring ............................................................................... 72.6 Output Wiring ............................................................................ 72.7 Output/Motor Disconnect .......................................................... 72.8 Conduit Entry ............................................................................. 72.9 Control Circuit Wiring ............................................................... 72.10 Remote Follower Connections ................................................... 72.11 Run and Fault Contacts ............................................................. 82.12 Remote Run/Stop ........................................................................ 82.13 Remote Safety Interlock ............................................................. 82.14 Speed Signal Output .................................................................. 82.15 Torque Specifications ................................................................. 9

Drive Currents, and Isolation Transformer Sizing Table ........ 9

Section 3.Section 3.Section 3.Section 3.Section 3. Operator ControlsOperator ControlsOperator ControlsOperator ControlsOperator Controls3.1 Switches .....................................................................................103.1.1 Start Select Switches ................................................................103.1.2 Speed Select Switches ...............................................................103.1.3 Speed Switches ..........................................................................103.1.4 Meter Select Switch ..................................................................103.2 Standard Option Switches ........................................................113.2.1 Drive Input Disconnect Switch ................................................113.2.2 Bypass Disconnect Switch ........................................................113.2.3 Main Disconnect Switch ...........................................................113.2.4 Drive/Off/Line/Transfer Switch ................................................113.2.5 Drive/Off/Line/Test Transfer Switch........................................123.2.6 Interlocked Contactor Bypass ...................................................123.2.7 Transfer Switch Motor Selection ..............................................133.2.8 Contactor Motor Selection ........................................................13

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Section 4.Section 4.Section 4.Section 4.Section 4. External Drive Status IndicatorsExternal Drive Status IndicatorsExternal Drive Status IndicatorsExternal Drive Status IndicatorsExternal Drive Status Indicators PagePagePagePagePage

4.1 Power On ...................................................................................144.2 Ready .........................................................................................144.3 Run .............................................................................................144.4 @ .................................................................................................144.5 Rev..............................................................................................144.6 Fault ...........................................................................................144.7 OL ...............................................................................................144.8 PL ...............................................................................................144.9 OT ...............................................................................................144.10 OC ..............................................................................................144.11 UV ..............................................................................................154.12 OV ..............................................................................................154.13 GF ...............................................................................................154.14 EXT ............................................................................................154.15 Lamp Test/High Voltage ...........................................................154.16 Meter Display Indicators ..........................................................154.17 MIN <—> MAX..........................................................................15

Section 5.Section 5.Section 5.Section 5.Section 5. Internal Drive Status IndicatorsInternal Drive Status IndicatorsInternal Drive Status IndicatorsInternal Drive Status IndicatorsInternal Drive Status Indicators5.1 BUS PWR ...................................................................................165.2 COMM P.S. ................................................................................165.3 COMM DRIVE...........................................................................165.4 COND DRIVE ............................................................................165.5 RUN CMD..................................................................................16

Section 6.Section 6.Section 6.Section 6.Section 6. Internal AdjustmentsInternal AdjustmentsInternal AdjustmentsInternal AdjustmentsInternal Adjustments6.1 Offset and Gain .........................................................................196.2 Minimum and Maximum Speed ...............................................196.3 Maximum Extended Speed .......................................................196.4 Overload .....................................................................................196.5 Current Limit ............................................................................196.6 I Comp ........................................................................................196.7 Walking Frequency ...................................................................206.8 V/HZ Cal (Optional) ..................................................................206.9 Standard Calibration Settings ..................................................206.10 P1, P2, P3 and P4 ......................................................................226.11 P5, P6 and P7 ............................................................................22

Section 7.Section 7.Section 7.Section 7.Section 7. Internal SwitchesInternal SwitchesInternal SwitchesInternal SwitchesInternal Switches7.1 Switch SW1 ................................................................................237.1.1 A0, A1 and A2 ............................................................................237.1.2 D0, D1, and D2 ..........................................................................237.1.3 FCR ............................................................................................237.1.4 OL ...............................................................................................237.2 Switch SW2 ................................................................................237.2.1 EXTR ..........................................................................................237.2.2 OVR ............................................................................................247.2.3 UVR ............................................................................................247.2.4 OCR ............................................................................................247.2.5 PLR ............................................................................................247.2.6 HI-TORQUE ..............................................................................247.2.7 EXT SPD ....................................................................................247.2.8 4-20mA .......................................................................................24

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7.3 SWITCH SW3 ............................................................................257.3.1 COAST .......................................................................................257.3.2 REVERSE ..................................................................................257.3.3 60HZ ...........................................................................................257.3.4 Output Voltages.........................................................................257.4 Standard Switch Configuration ................................................26

Section 8.Section 8.Section 8.Section 8.Section 8. Start-up and Calibration ProceduresStart-up and Calibration ProceduresStart-up and Calibration ProceduresStart-up and Calibration ProceduresStart-up and Calibration Procedures8.1 Pre-Check Sequence ..................................................................278.2 Calibration Procedure ...............................................................27

Section 9.Section 9.Section 9.Section 9.Section 9. Service InformationService InformationService InformationService InformationService Information9.1 Introduction ...............................................................................299.2 Description of Operation ...........................................................299.3 Troubleshooting .........................................................................299.4 Minimum Recommended Test Equipment ..............................319.5 Diode, Transistor and SCR Test ...............................................319.5.1 Diode, Transistor and SCR Testing ..........................................319.6 Doide, Transistor and SCR Replacement .................................339.6.1 Input SCR Modules ...................................................................339.6.2 Output SCR Modules ................................................................339.6.3 Output Diode Bridge .................................................................339.6.4 Free-Wheeling Diode .................................................................339.6.5 Conduction/Commutation Transistor Module .........................339.7 Power Up Sequence ...................................................................339.8 Power Supply on the Control Board .........................................339.9 Output Checks ...........................................................................34Troubleshooting Flow Chart ......................................................................35

List of IllustrationsList of IllustrationsList of IllustrationsList of IllustrationsList of Illustrations

Typical 1703 Series ...................................................................................... 3Typical Older 1703 Series, 21 Amps and Below, Customer Connections . 5Typical 1703 Series, Customer Connections .............................................. 6Control Board .............................................................................................17Control Chip Board, drawing.....................................................................18Control Chip Board, photo .........................................................................21Display Board, drawing .............................................................................22Remote Speed Signal Calibration on Control Board ................................28Control Board Swung Open .......................................................................30Input/Output SCRs ....................................................................................31Output Diode Bridge Module .....................................................................32Conduction/Commutation Transistor Module ..........................................32

1

WARNING!DO NOT ATTEMPT TO LIFT ORDO NOT ATTEMPT TO LIFT ORDO NOT ATTEMPT TO LIFT ORDO NOT ATTEMPT TO LIFT ORDO NOT ATTEMPT TO LIFT ORSUPPORT THE DRIVE BY THESUPPORT THE DRIVE BY THESUPPORT THE DRIVE BY THESUPPORT THE DRIVE BY THESUPPORT THE DRIVE BY THEENCLOSURE OR THE INTERNALENCLOSURE OR THE INTERNALENCLOSURE OR THE INTERNALENCLOSURE OR THE INTERNALENCLOSURE OR THE INTERNALCOMPONENTS.COMPONENTS.COMPONENTS.COMPONENTS.COMPONENTS.

SECTION 1.SECTION 1.SECTION 1.SECTION 1.SECTION 1. INSTINSTINSTINSTINSTALLAALLAALLAALLAALLATIONTIONTIONTIONTION

1.11.11.11.11.1 MOUNTINGMOUNTINGMOUNTINGMOUNTINGMOUNTING

The 1703 Series drives are all designed to be wallmounted. If they must be floor mounted, a floor standcan be supplied. Assemble the base struts to the verti-cal rectangular section struts using the support brack-ets supplied. The floor stand must be firmly anchoredto the floor or wall for stability. Attach the drive to thevertical rectangular section struts using the springloaded fasteners provided. Leave the enclosure closeduntil it is time to wire the drive.

The following minimum clearances are recommended:

ThruThruThruThruThru 28 thru28 thru28 thru28 thru28 thru 10010010010010021 amp21 amp21 amp21 amp21 amp 77 amp77 amp77 amp77 amp77 amp ampampampampamp

To bottom of enclosure 6" 6" 6" To right side of enclosure 6" 10" 15" To left side of enclosure 6" 10" 15" To top of enclosure 3" 3" 3" To front of enclosure 19" 19" 19" To back of enclosure Mounting rails supply

necessary clearance

The current rating of the drive is shown on the nameplate on the inside of the door.

These clearances are for access, air flow and conduitentry and must be maintained.

All conduit and wiring must enter through the top ofthe enclosure.

Do not remove the conduit entry plate during trans-portation or mounting. See Section 2 for details onwiring the drive.

1.21.21.21.21.2 TEMPERATURE ANDTEMPERATURE ANDTEMPERATURE ANDTEMPERATURE ANDTEMPERATURE ANDVENTILATIONVENTILATIONVENTILATIONVENTILATIONVENTILATION

All electronic equipment is susceptible to failure if op-erated in ambient temperatures outside of its rating.The operating temperature range for this Grahamdrive is -20oC to 40oC (-4oF to 104oF). The drive shouldnot be operated outside these extremes.

GENERALGENERALGENERALGENERALGENERAL

This operation and maintenance manual provides thenecessary installation, adjustment and maintenanceprocedures for the 7.5 through 100 amp Graham Se-ries 1703 adjustable frequency drives. Since these in-structions are general, problems may occur which arebeyond the scope of the manual. If further informationis desired, please contact Graham for assistance.NOTE: As-built schematics and made-to-order equip-ment operation supersede the instructions in thismanual.

Although every precaution has been taken in the de-sign of the drive to ensure reliability under extremeoperating conditions, it is possible to damage theequipment through misuse or misapplication. There-fore, this instruction manual should be carefully re-viewed before installing and operating the equipment.

RECEIPT OF SHIPMENTRECEIPT OF SHIPMENTRECEIPT OF SHIPMENTRECEIPT OF SHIPMENTRECEIPT OF SHIPMENT

When the drive is received, it should be comparedwith the packing slip to be sure that everything is re-ceived. Any damages or shortages should be reportedimmediately to the carrier who transported the drive.If necessary, contact Graham for assistance, referringto the order number, equipment description and serialnumber.

STORAGESTORAGESTORAGESTORAGESTORAGE

For long periods of storage, the drive must be coveredto prevent corrosion and contamination. It must bestored in a clean, dry location between -40oF (-40oC)and 185oF (+85oC). The relative humidity should notexceed 95%. The drive should be checked periodicallyto ensure that no condensation has formed. After stor-age, again check that it is dry before applying power.

Some of the electrolytic capacitors used in the driveare subject to the relaxation of an internal formed ox-ide film after long periods of storage and may requirereforming prior to applying power. If the drive hasbeen stored for over 18 months, Graham should becontacted for a determination as to whether a reform-ing procedure is necessary.

HANDLINGHANDLINGHANDLINGHANDLINGHANDLING

Care should be taken to prevent damage when movingthe drive. The drive should be lifted using hooks orclevis pins through the lifting holes in the mountingrails.

2

1. If the ambient will be below -20oC, Grahamshould be notified so a space heater can be pro-vided inside the enclosure.

2. If the ambient will exceed 40oC, a source ofcooling will be required.

3. If the drive will be operated intermittently incold and/or humid conditions, precautionsmust be taken to prevent condensation fromforming when the drive is off. A thermostati-cally controlled temperature control should beinstalled to maintain acceptable temperatureand moisture control. Consult Graham for fur-ther recommendations.

1703 Series drives are cooled by fan(s) drawing airthrough slots in the standard enclosure and across theheatsink. The slots must never be restricted in anyway. The slots were covered for shipping. The cover-ing material must be removed before operating thedrive.

DANGER!FLAMMABLE MATERIALS MUSTFLAMMABLE MATERIALS MUSTFLAMMABLE MATERIALS MUSTFLAMMABLE MATERIALS MUSTFLAMMABLE MATERIALS MUSTBE KEPT AWAY FROM THE EN-BE KEPT AWAY FROM THE EN-BE KEPT AWAY FROM THE EN-BE KEPT AWAY FROM THE EN-BE KEPT AWAY FROM THE EN-CLOSURE.CLOSURE.CLOSURE.CLOSURE.CLOSURE.

The drive must be installed in a clean, dry environ-ment unless special enclosure provisions are provided.Periodically, the drive should be cleaned using a vac-uum cleaner and a soft, long-bristled brush. Lightlybrush the dust from the drive components with thebrush and use the vacuum cleaner to remove the dustas it falls. If available, clean dry compressed air at amaximum pressure of 50 psi (3.4 atmospheres) may beused to blow dust from the drive.

WARNING!DO NOT USE A VACUUM CLEANERDO NOT USE A VACUUM CLEANERDO NOT USE A VACUUM CLEANERDO NOT USE A VACUUM CLEANERDO NOT USE A VACUUM CLEANERDIRECTLY ON THE ELECTRONICDIRECTLY ON THE ELECTRONICDIRECTLY ON THE ELECTRONICDIRECTLY ON THE ELECTRONICDIRECTLY ON THE ELECTRONICCOMPONENTS.COMPONENTS.COMPONENTS.COMPONENTS.COMPONENTS.

ALWAYS REMOVE THE INCOMINGALWAYS REMOVE THE INCOMINGALWAYS REMOVE THE INCOMINGALWAYS REMOVE THE INCOMINGALWAYS REMOVE THE INCOMINGPOWER TO THE ENCLOSURE BE-POWER TO THE ENCLOSURE BE-POWER TO THE ENCLOSURE BE-POWER TO THE ENCLOSURE BE-POWER TO THE ENCLOSURE BE-FORE OPENING THE DOOR. WAITFORE OPENING THE DOOR. WAITFORE OPENING THE DOOR. WAITFORE OPENING THE DOOR. WAITFORE OPENING THE DOOR. WAITUNTIL THE “BUS POWER” LEDUNTIL THE “BUS POWER” LEDUNTIL THE “BUS POWER” LEDUNTIL THE “BUS POWER” LEDUNTIL THE “BUS POWER” LEDEXTINGUISHES BEFORE TOUCH-EXTINGUISHES BEFORE TOUCH-EXTINGUISHES BEFORE TOUCH-EXTINGUISHES BEFORE TOUCH-EXTINGUISHES BEFORE TOUCH-ING ANY INTERNAL COMPO-ING ANY INTERNAL COMPO-ING ANY INTERNAL COMPO-ING ANY INTERNAL COMPO-ING ANY INTERNAL COMPO-NENTS. THEN, USING A VOLTME-NENTS. THEN, USING A VOLTME-NENTS. THEN, USING A VOLTME-NENTS. THEN, USING A VOLTME-NENTS. THEN, USING A VOLTME-TER ON THE 100 VOLT DC SCALE,TER ON THE 100 VOLT DC SCALE,TER ON THE 100 VOLT DC SCALE,TER ON THE 100 VOLT DC SCALE,TER ON THE 100 VOLT DC SCALE,MEASURE THE VOLTAGE FROMMEASURE THE VOLTAGE FROMMEASURE THE VOLTAGE FROMMEASURE THE VOLTAGE FROMMEASURE THE VOLTAGE FROMJACK J2 TERMINAL 9 (+) TO JACKJACK J2 TERMINAL 9 (+) TO JACKJACK J2 TERMINAL 9 (+) TO JACKJACK J2 TERMINAL 9 (+) TO JACKJACK J2 TERMINAL 9 (+) TO JACKJ1 TERMINAL 6 (-) ON THE CON-J1 TERMINAL 6 (-) ON THE CON-J1 TERMINAL 6 (-) ON THE CON-J1 TERMINAL 6 (-) ON THE CON-J1 TERMINAL 6 (-) ON THE CON-TROL BOARD TO VERIFY THATTROL BOARD TO VERIFY THATTROL BOARD TO VERIFY THATTROL BOARD TO VERIFY THATTROL BOARD TO VERIFY THATALL VOLTAGES HAVE DISSI-ALL VOLTAGES HAVE DISSI-ALL VOLTAGES HAVE DISSI-ALL VOLTAGES HAVE DISSI-ALL VOLTAGES HAVE DISSI-PATED BEFORE SERVICING THEPATED BEFORE SERVICING THEPATED BEFORE SERVICING THEPATED BEFORE SERVICING THEPATED BEFORE SERVICING THEDRIVE.DRIVE.DRIVE.DRIVE.DRIVE.

DANGER!

3

Mounting Rail Lifting Holes

Mounting Holes

Air Vents

Drive/Off/Line/Test Switch (optional)

Display Meter and Panel

Operator Control Panel

Conduit Entry Plate

TYPICAL 1703 SERIES

4

CAUTION!REDUCING THE INPUT VOLTAGEREDUCING THE INPUT VOLTAGEREDUCING THE INPUT VOLTAGEREDUCING THE INPUT VOLTAGEREDUCING THE INPUT VOLTAGEWILL REDUCE THE HORSEPOWERWILL REDUCE THE HORSEPOWERWILL REDUCE THE HORSEPOWERWILL REDUCE THE HORSEPOWERWILL REDUCE THE HORSEPOWERCAPABILITY OF THE DRIVE.CAPABILITY OF THE DRIVE.CAPABILITY OF THE DRIVE.CAPABILITY OF THE DRIVE.CAPABILITY OF THE DRIVE.

Selecting different input and output voltages maydamage the drive or motor or both and will result inimproper operation of the system.

2.22.22.22.22.2 GROUND CONNECTIONSGROUND CONNECTIONSGROUND CONNECTIONSGROUND CONNECTIONSGROUND CONNECTIONS

A yellow and green grounding terminal (4TB1) is pro-vided for a dedicated ground wire connection. All pro-visions of the National Electrical Code and local codesmust be followed.

WARNING!CONDUIT GROUND AND DAISYCONDUIT GROUND AND DAISYCONDUIT GROUND AND DAISYCONDUIT GROUND AND DAISYCONDUIT GROUND AND DAISYCHAIN GROUNDING ARE NOT AD-CHAIN GROUNDING ARE NOT AD-CHAIN GROUNDING ARE NOT AD-CHAIN GROUNDING ARE NOT AD-CHAIN GROUNDING ARE NOT AD-EQUATE. COLD WATER PIPE CON-EQUATE. COLD WATER PIPE CON-EQUATE. COLD WATER PIPE CON-EQUATE. COLD WATER PIPE CON-EQUATE. COLD WATER PIPE CON-NECTIONS ARE NOT ADEQUATE. ANECTIONS ARE NOT ADEQUATE. ANECTIONS ARE NOT ADEQUATE. ANECTIONS ARE NOT ADEQUATE. ANECTIONS ARE NOT ADEQUATE. ASEPARATE GROUNDING WIRESEPARATE GROUNDING WIRESEPARATE GROUNDING WIRESEPARATE GROUNDING WIRESEPARATE GROUNDING WIREMUST BE RUN TO AVOID POSSIBLEMUST BE RUN TO AVOID POSSIBLEMUST BE RUN TO AVOID POSSIBLEMUST BE RUN TO AVOID POSSIBLEMUST BE RUN TO AVOID POSSIBLEELECTRICAL NOISE PROBLEMSELECTRICAL NOISE PROBLEMSELECTRICAL NOISE PROBLEMSELECTRICAL NOISE PROBLEMSELECTRICAL NOISE PROBLEMSAND POTENTIAL SAFETY HAZARDS.AND POTENTIAL SAFETY HAZARDS.AND POTENTIAL SAFETY HAZARDS.AND POTENTIAL SAFETY HAZARDS.AND POTENTIAL SAFETY HAZARDS.

2.32.32.32.32.3 INPUT DISCONNECT AND INPUTINPUT DISCONNECT AND INPUTINPUT DISCONNECT AND INPUTINPUT DISCONNECT AND INPUTINPUT DISCONNECT AND INPUTFUSESFUSESFUSESFUSESFUSES

The drive may be supplied with or without an inputdisconnect and input fuses. Size the input disconnectand fuses to handle the Drive Input Current ratingshown in the table on page 9. Input fuses are not re-quired to protect the drive. Special fast acting fusesshould not be used.

2.42.42.42.42.4 ISOLATION TRANSFORMERISOLATION TRANSFORMERISOLATION TRANSFORMERISOLATION TRANSFORMERISOLATION TRANSFORMER

If an isolation transformer is used, size it from thetable on page 9.

If an isolation transformer is used, the National Elec-trical Code requires that an input disconnect must beplaced between the transformer secondary and thedrive input.

WARNING!TO AVOID DAMAGE TO THE DRIVE,TO AVOID DAMAGE TO THE DRIVE,TO AVOID DAMAGE TO THE DRIVE,TO AVOID DAMAGE TO THE DRIVE,TO AVOID DAMAGE TO THE DRIVE,DO NOT OPEN OR CLOSE ANY DIS-DO NOT OPEN OR CLOSE ANY DIS-DO NOT OPEN OR CLOSE ANY DIS-DO NOT OPEN OR CLOSE ANY DIS-DO NOT OPEN OR CLOSE ANY DIS-CONNECT ON THE PRIMARY SIDECONNECT ON THE PRIMARY SIDECONNECT ON THE PRIMARY SIDECONNECT ON THE PRIMARY SIDECONNECT ON THE PRIMARY SIDEOF THE TRANSFORMER UNTIL AF-OF THE TRANSFORMER UNTIL AF-OF THE TRANSFORMER UNTIL AF-OF THE TRANSFORMER UNTIL AF-OF THE TRANSFORMER UNTIL AF-TER THE DISCONNECT ON THETER THE DISCONNECT ON THETER THE DISCONNECT ON THETER THE DISCONNECT ON THETER THE DISCONNECT ON THESECONDARY SIDE IS OPENED.SECONDARY SIDE IS OPENED.SECONDARY SIDE IS OPENED.SECONDARY SIDE IS OPENED.SECONDARY SIDE IS OPENED.

SECTION 2.SECTION 2.SECTION 2.SECTION 2.SECTION 2. WIRINGWIRINGWIRINGWIRINGWIRING

2.1 INPUT VOLTAGE2.1 INPUT VOLTAGE2.1 INPUT VOLTAGE2.1 INPUT VOLTAGE2.1 INPUT VOLTAGE

The drive can be setup to operate on a broad range ofvoltages. It was factory set to operate on the voltageshown on the nameplate. Check the drive nameplatefor the proper input and output voltages before wiringthe drive. If the input voltage shown on the nameplateis different than the voltage available, the drive maybe changed by reconnecting the leads from the controltransformer as shown below.

CAUTION!CONTACT GRAHAM BEFORECONTACT GRAHAM BEFORECONTACT GRAHAM BEFORECONTACT GRAHAM BEFORECONTACT GRAHAM BEFORECHANGING THE INPUT VOLTAGECHANGING THE INPUT VOLTAGECHANGING THE INPUT VOLTAGECHANGING THE INPUT VOLTAGECHANGING THE INPUT VOLTAGECONNECTION.CONNECTION.CONNECTION.CONNECTION.CONNECTION.

On drives rated 21 amps or less, the P, S, and N con-nection taps are located either on the power board oron the snubber board. On all drives above 21 amps,the connection taps are on the snubber board.

H1 through H8 are the transformer taps. They arecolor coded as shown below.

Transformer Wire Line H1 H2 H3 H4 H5 H6 H7 H8 Voltage White Red OrangeYellowGreen Blue Purple Grey

200/208 P3 P1 N1 P4 P2 N2 N3 N4 230 P3 N1 P1 P4 N2 P2 N3 N4 380 P3 N1 S1 S2 N2 N3 N4 P1 415 P3 S2 N1 S1 P1 N2 N3 N4 460 P3 N1 S1 S2 N2 P1 N3 N4 575* P3 N1 S1 S2 N2 N3 P1 N4

*See warning below

WARNING!A DRIVE NAMEPLATED FORA DRIVE NAMEPLATED FORA DRIVE NAMEPLATED FORA DRIVE NAMEPLATED FORA DRIVE NAMEPLATED FOR460VAC OR LESS MUST NOT BE460VAC OR LESS MUST NOT BE460VAC OR LESS MUST NOT BE460VAC OR LESS MUST NOT BE460VAC OR LESS MUST NOT BERECONNECTED FOR 575VAC IN-RECONNECTED FOR 575VAC IN-RECONNECTED FOR 575VAC IN-RECONNECTED FOR 575VAC IN-RECONNECTED FOR 575VAC IN-PUT VOLTAGE. DAMAGE TO THEPUT VOLTAGE. DAMAGE TO THEPUT VOLTAGE. DAMAGE TO THEPUT VOLTAGE. DAMAGE TO THEPUT VOLTAGE. DAMAGE TO THEDRIVE POWER COMPONENTSDRIVE POWER COMPONENTSDRIVE POWER COMPONENTSDRIVE POWER COMPONENTSDRIVE POWER COMPONENTSCAN RESULT FROM IMPROPERCAN RESULT FROM IMPROPERCAN RESULT FROM IMPROPERCAN RESULT FROM IMPROPERCAN RESULT FROM IMPROPERVOLTAGE CONNECTIONS.VOLTAGE CONNECTIONS.VOLTAGE CONNECTIONS.VOLTAGE CONNECTIONS.VOLTAGE CONNECTIONS.

A drive nameplated for 575 V AC may be reconnectedfor any of the lower voltages. Some 575 V AC drivesrated 21 amps or less will have only the H1, H3, H4and H7 connections. Connect these as shown in thetable above.

5

TYPICAL OLDER 1703 SERIES, MODELS 21 AMPS AND BELOWCustomer Connections

4TB4 Customer Terminal Strip

F1 and F2 Fuses

Input Power Line Terminal Strip

Motor Terminal Strip

Drive/Off/Line/Test Switch (optional)

Older drives were built as shown here. Newer drives of21 amps or below do not have a separate power board.The customer connections for these drives and alldrives larger than 21 amps are shown on page 6.

6

TYPICAL 1703 SERIESCustomer Connections

4TB4 Customer Terminal Strip

Input PowerLine Terminals

Input from MotorStarter Terminals(optional)

Motor Terminals Drive/Off/Line/Test Switch (optional)

See page 5 for older drives of 21 amps or less.

7

WARNING!DO NOT DRILL, SAW, FILE ORDO NOT DRILL, SAW, FILE ORDO NOT DRILL, SAW, FILE ORDO NOT DRILL, SAW, FILE ORDO NOT DRILL, SAW, FILE ORPERFORM ANY OPERATION ONPERFORM ANY OPERATION ONPERFORM ANY OPERATION ONPERFORM ANY OPERATION ONPERFORM ANY OPERATION ONTHE DRIVE ENCLOSURE OR CON-THE DRIVE ENCLOSURE OR CON-THE DRIVE ENCLOSURE OR CON-THE DRIVE ENCLOSURE OR CON-THE DRIVE ENCLOSURE OR CON-DUIT ENTRY PLATE WHILE THEYDUIT ENTRY PLATE WHILE THEYDUIT ENTRY PLATE WHILE THEYDUIT ENTRY PLATE WHILE THEYDUIT ENTRY PLATE WHILE THEYARE ON THE DRIVE. METAL FIL-ARE ON THE DRIVE. METAL FIL-ARE ON THE DRIVE. METAL FIL-ARE ON THE DRIVE. METAL FIL-ARE ON THE DRIVE. METAL FIL-INGS AND OTHER FOREIGN MA-INGS AND OTHER FOREIGN MA-INGS AND OTHER FOREIGN MA-INGS AND OTHER FOREIGN MA-INGS AND OTHER FOREIGN MA-TERIALS WHICH CONTAMINATETERIALS WHICH CONTAMINATETERIALS WHICH CONTAMINATETERIALS WHICH CONTAMINATETERIALS WHICH CONTAMINATETHE DRIVE CAN CAUSE DAMAGETHE DRIVE CAN CAUSE DAMAGETHE DRIVE CAN CAUSE DAMAGETHE DRIVE CAN CAUSE DAMAGETHE DRIVE CAN CAUSE DAMAGEAND MAY VOID WARRANTY COV-AND MAY VOID WARRANTY COV-AND MAY VOID WARRANTY COV-AND MAY VOID WARRANTY COV-AND MAY VOID WARRANTY COV-ERAGES.ERAGES.ERAGES.ERAGES.ERAGES.

2.92.92.92.92.9 CONTROL CIRCUIT WIRINGCONTROL CIRCUIT WIRINGCONTROL CIRCUIT WIRINGCONTROL CIRCUIT WIRINGCONTROL CIRCUIT WIRING

Control circuit wiring connections (low voltage DCand 120 volt AC) are terminated on terminal strip4TB4. Shielded cable should be installed for all lowvoltage DC control signal wiring. The shield of thecable must be connected to the negative terminal forthe control signal. Do not connect the shield at theother end of the cable. Insulate the shield so that noelectrical connection is made at the other end of thecable.

WARNING!NEVER CONNECT THE SHIELD TONEVER CONNECT THE SHIELD TONEVER CONNECT THE SHIELD TONEVER CONNECT THE SHIELD TONEVER CONNECT THE SHIELD TOEARTH GROUND.EARTH GROUND.EARTH GROUND.EARTH GROUND.EARTH GROUND.

NEVER CONNECT THE SHIELD-NEVER CONNECT THE SHIELD-NEVER CONNECT THE SHIELD-NEVER CONNECT THE SHIELD-NEVER CONNECT THE SHIELD-ING WIRE OF A SHIELDED CABLEING WIRE OF A SHIELDED CABLEING WIRE OF A SHIELDED CABLEING WIRE OF A SHIELDED CABLEING WIRE OF A SHIELDED CABLEAT BOTH ENDS.AT BOTH ENDS.AT BOTH ENDS.AT BOTH ENDS.AT BOTH ENDS.

2.102.102.102.102.10 REMOTE FOLLOWERREMOTE FOLLOWERREMOTE FOLLOWERREMOTE FOLLOWERREMOTE FOLLOWERCONNECTIONSCONNECTIONSCONNECTIONSCONNECTIONSCONNECTIONS

For automatic speed tracking, the drive is suppliedwith an interface circuit for inputs from a system con-trol panel. The input signal wiring is terminated toterminals 13(+) and 14(-) of terminal strip 4TB4.These connections are used for both DC voltage andcurrent input signals. Selection of the type of followerto be used is made by the position of the SW2 switchlabeled 4-20mA as shown below.

SignalSignalSignalSignalSignal RangeRangeRangeRangeRange SW2 (4-20mA)SW2 (4-20mA)SW2 (4-20mA)SW2 (4-20mA)SW2 (4-20mA)Current Input 0 to +40mA OnVoltage Input 0 to +40VDC Off

The voltage and current input circuits are electricallyisolated from chassis ground by 1,000 ohms.

2.52.52.52.52.5 INPUT WIRINGINPUT WIRINGINPUT WIRINGINPUT WIRINGINPUT WIRING

Input wire types and sizes must be selected basedupon conformance with the National Electrical Codeand all local codes and restrictions. See table on page 9for power wiring and ground wiring sizes.

2.62.62.62.62.6 OUTPUT WIRINGOUTPUT WIRINGOUTPUT WIRINGOUTPUT WIRINGOUTPUT WIRING

Motor wiring types and sizes must be selected basedupon conformance with the National Electrical Codeand all local codes and restrictions. See table on page 9for power wiring and ground wiring sizes.

CAUTION!DO NOT INSTALL MOTOR WIRINGDO NOT INSTALL MOTOR WIRINGDO NOT INSTALL MOTOR WIRINGDO NOT INSTALL MOTOR WIRINGDO NOT INSTALL MOTOR WIRINGIN THE SAME CONDUIT OR RACE-IN THE SAME CONDUIT OR RACE-IN THE SAME CONDUIT OR RACE-IN THE SAME CONDUIT OR RACE-IN THE SAME CONDUIT OR RACE-WAY WITH OTHER WIRING. IM-WAY WITH OTHER WIRING. IM-WAY WITH OTHER WIRING. IM-WAY WITH OTHER WIRING. IM-WAY WITH OTHER WIRING. IM-PROPER INSTALLATION OF THEPROPER INSTALLATION OF THEPROPER INSTALLATION OF THEPROPER INSTALLATION OF THEPROPER INSTALLATION OF THEMOTOR WIRING CAN CAUSEMOTOR WIRING CAN CAUSEMOTOR WIRING CAN CAUSEMOTOR WIRING CAN CAUSEMOTOR WIRING CAN CAUSEELECTRICAL NOISE IN THEELECTRICAL NOISE IN THEELECTRICAL NOISE IN THEELECTRICAL NOISE IN THEELECTRICAL NOISE IN THEPOWER DISTRIBUTION WIRING.POWER DISTRIBUTION WIRING.POWER DISTRIBUTION WIRING.POWER DISTRIBUTION WIRING.POWER DISTRIBUTION WIRING.

2.72.72.72.72.7 OUTPUT/MOTOR DISCONNECTOUTPUT/MOTOR DISCONNECTOUTPUT/MOTOR DISCONNECTOUTPUT/MOTOR DISCONNECTOUTPUT/MOTOR DISCONNECT

It is recommended that any device which can discon-nect the motor from the output of the drive be inter-locked to the emergency shutdown circuits of thedrive. This will provide an orderly shutdown if the dis-connecting device is opened while the drive is in op-eration. Interlock contacts should be installed in se-ries with terminals 5 and 6 of terminal strip 4TB4.

WARNING!CLOSING A MOTOR DISCONNECTCLOSING A MOTOR DISCONNECTCLOSING A MOTOR DISCONNECTCLOSING A MOTOR DISCONNECTCLOSING A MOTOR DISCONNECTSWITCH WHILE THE DRIVE ISSWITCH WHILE THE DRIVE ISSWITCH WHILE THE DRIVE ISSWITCH WHILE THE DRIVE ISSWITCH WHILE THE DRIVE ISRUNNING CAN CAUSE NUISANCERUNNING CAN CAUSE NUISANCERUNNING CAN CAUSE NUISANCERUNNING CAN CAUSE NUISANCERUNNING CAN CAUSE NUISANCEFAULT TRIPS.FAULT TRIPS.FAULT TRIPS.FAULT TRIPS.FAULT TRIPS.

2.82.82.82.82.8 CONDUIT ENTRYCONDUIT ENTRYCONDUIT ENTRYCONDUIT ENTRYCONDUIT ENTRY

All 1703 model drives are designed for conduit entryat the top of the enclosure. A removable conduit entryplate is provided for ease of installation.

1. Mark the location of the conduit entries forinput power, motor wiring and control wiringon the conduit entry plate.

2. Remove the conduit entry plate.3. Drill the conduit entry holes in the plate.4. Reinstall the plate on the drive and connect

the conduit to the plate.

8

WARNING!APPLICATIONS REQUIRINGAPPLICATIONS REQUIRINGAPPLICATIONS REQUIRINGAPPLICATIONS REQUIRINGAPPLICATIONS REQUIRINGMORE THAN 24 V DC ISOLATIONMORE THAN 24 V DC ISOLATIONMORE THAN 24 V DC ISOLATIONMORE THAN 24 V DC ISOLATIONMORE THAN 24 V DC ISOLATIONFROM EARTH GROUND OR AFROM EARTH GROUND OR AFROM EARTH GROUND OR AFROM EARTH GROUND OR AFROM EARTH GROUND OR AHIGH INPUT IMPEDANCEHIGH INPUT IMPEDANCEHIGH INPUT IMPEDANCEHIGH INPUT IMPEDANCEHIGH INPUT IMPEDANCESHOULD SPECIFY A GRAHAMSHOULD SPECIFY A GRAHAMSHOULD SPECIFY A GRAHAMSHOULD SPECIFY A GRAHAMSHOULD SPECIFY A GRAHAMREFERENCE SIGNAL ISOLATOR.REFERENCE SIGNAL ISOLATOR.REFERENCE SIGNAL ISOLATOR.REFERENCE SIGNAL ISOLATOR.REFERENCE SIGNAL ISOLATOR.

The input impedance of the current follower circuitwhen connected across terminals 13 and 14 of 4TB4and switch SW2 is in the 4 to 20mA position is 220ohms. When SW2 is OFF, the input impedance isgreater than 10 k ohms.

If a current transducer is supplied utilizing a tradi-tional control with power supply (four wire system),the input signal is terminated as instructed above.

If a potentiometer, such as a 135 ohm potentiometer,was specified for use with the drive when it was or-dered, refer to the customer connection diagram. Ifthe drive is to be field modified to use a potentiometer,follow the table below.

PotentiometerPotentiometerPotentiometerPotentiometerPotentiometer ConnectionConnectionConnectionConnectionConnectionConnectionConnectionConnectionConnectionConnection

+ 24 V DC Control board jack J7 Pin 15Wiper 4TB4 terminal 13

Negative 4TB4 terminal 14Shield 4TB4 terminal 14

The maximum recommended wire length for a poten-tiometer input is 50 feet.

NOTE: CONNECTION OF POTEN-NOTE: CONNECTION OF POTEN-NOTE: CONNECTION OF POTEN-NOTE: CONNECTION OF POTEN-NOTE: CONNECTION OF POTEN-TIOMETERS RANGING IN VALUETIOMETERS RANGING IN VALUETIOMETERS RANGING IN VALUETIOMETERS RANGING IN VALUETIOMETERS RANGING IN VALUEFROM 135 TO 5,000 OHMS CAN BEFROM 135 TO 5,000 OHMS CAN BEFROM 135 TO 5,000 OHMS CAN BEFROM 135 TO 5,000 OHMS CAN BEFROM 135 TO 5,000 OHMS CAN BEACCOMMODATED BY THE IN-ACCOMMODATED BY THE IN-ACCOMMODATED BY THE IN-ACCOMMODATED BY THE IN-ACCOMMODATED BY THE IN-STALLATION OF A RESISTOR INSTALLATION OF A RESISTOR INSTALLATION OF A RESISTOR INSTALLATION OF A RESISTOR INSTALLATION OF A RESISTOR INSERIES BETWEEN J7 PIN 15 ANDSERIES BETWEEN J7 PIN 15 ANDSERIES BETWEEN J7 PIN 15 ANDSERIES BETWEEN J7 PIN 15 ANDSERIES BETWEEN J7 PIN 15 ANDTHE POSITIVE SIDE OF THE POT.THE POSITIVE SIDE OF THE POT.THE POSITIVE SIDE OF THE POT.THE POSITIVE SIDE OF THE POT.THE POSITIVE SIDE OF THE POT.THIS SHOULD BE SIZED TO LIMITTHIS SHOULD BE SIZED TO LIMITTHIS SHOULD BE SIZED TO LIMITTHIS SHOULD BE SIZED TO LIMITTHIS SHOULD BE SIZED TO LIMITTHE POTENTIOMETER CURRENTTHE POTENTIOMETER CURRENTTHE POTENTIOMETER CURRENTTHE POTENTIOMETER CURRENTTHE POTENTIOMETER CURRENTTO LESS THAN ITS RATED VALUE.TO LESS THAN ITS RATED VALUE.TO LESS THAN ITS RATED VALUE.TO LESS THAN ITS RATED VALUE.TO LESS THAN ITS RATED VALUE.IN NO CASE SHOULD THE POTEN-IN NO CASE SHOULD THE POTEN-IN NO CASE SHOULD THE POTEN-IN NO CASE SHOULD THE POTEN-IN NO CASE SHOULD THE POTEN-TIOMETER CURRENT BE MORETIOMETER CURRENT BE MORETIOMETER CURRENT BE MORETIOMETER CURRENT BE MORETIOMETER CURRENT BE MORETHAN 25 THAN 25 THAN 25 THAN 25 THAN 25 mmmmmA.A.A.A.A.

All signals are direct acting only. This means that theminimum reference signal corresponds to minimumdrive speed and the maximum reference signal corre-sponds to maximum speed. The minimum and maxi-mum speeds corresponding to the input reference sig-nal are adjustable by adjusting the MIN SPEED andMAX SPEED potentiometers. See Section 6.

2.112.112.112.112.11 RUN AND FAULT CONTACTSRUN AND FAULT CONTACTSRUN AND FAULT CONTACTSRUN AND FAULT CONTACTSRUN AND FAULT CONTACTSTwo Form C contacts (one normally open and one nor-mally closed contact) are provided for customer usefrom the drive’s run and fault relays.

The relay connections are provided on terminal strip4TB4 as shown.

RelayRelayRelayRelayRelay ContactsContactsContactsContactsContacts 4TB4 Pin #4TB4 Pin #4TB4 Pin #4TB4 Pin #4TB4 Pin #RUN N.O. 10 & 11RUN N.C. 11 & 12

FAULT N.O. 8 & 9FAULT N.C. 7 & 8

The contacts are rated 120 V AC, 2 amps.

The RUN relay picks up when the drive is runningand drops out with a stop or fault condition.

The FAULT relay drops out in the event of a fault con-dition.

2.122.122.122.122.12 REMOTE RUN/STOPREMOTE RUN/STOPREMOTE RUN/STOPREMOTE RUN/STOPREMOTE RUN/STOP

A customer supplied normally open remote switchmay be wired to 4TB4 terminals 3 and 4 to start andstop the drive from a remote point when the drive is inthe "Auto" mode.

2.132.132.132.132.13 REMOTE SAFETY INTERLOCKREMOTE SAFETY INTERLOCKREMOTE SAFETY INTERLOCKREMOTE SAFETY INTERLOCKREMOTE SAFETY INTERLOCK

A customer supplied normally closed safety interlockcontact may be wired to 4TB4 terminals 5 and 6 toautomatically stop the drive when the drive is eitherin the "Hand" or "Auto" mode in case of an emergency.The drive will restart when the safety interlock resets.

2.142.142.142.142.14 SPEED SIGNAL OUTPUTSPEED SIGNAL OUTPUTSPEED SIGNAL OUTPUTSPEED SIGNAL OUTPUTSPEED SIGNAL OUTPUT

A 0 to 10 V DC speed signal output is available on4TB4 terminals 1 and 2. Use this to show a remotespeed indication. Use shielded wire and connect theshield to 4TB4 terminal 2.

WARNING!THIS SIGNAL IS NOT AVAILABLETHIS SIGNAL IS NOT AVAILABLETHIS SIGNAL IS NOT AVAILABLETHIS SIGNAL IS NOT AVAILABLETHIS SIGNAL IS NOT AVAILABLEON ALL DRIVES. ON SOMEON ALL DRIVES. ON SOMEON ALL DRIVES. ON SOMEON ALL DRIVES. ON SOMEON ALL DRIVES. ON SOMEDRIVES, TERMINALS 1 AND 2DRIVES, TERMINALS 1 AND 2DRIVES, TERMINALS 1 AND 2DRIVES, TERMINALS 1 AND 2DRIVES, TERMINALS 1 AND 2HAVE A CONSTANT 115 V AC.HAVE A CONSTANT 115 V AC.HAVE A CONSTANT 115 V AC.HAVE A CONSTANT 115 V AC.HAVE A CONSTANT 115 V AC.CHECK THE WIRING NUMBERSCHECK THE WIRING NUMBERSCHECK THE WIRING NUMBERSCHECK THE WIRING NUMBERSCHECK THE WIRING NUMBERSTO BE SURE WHICH YOU HAVE. IFTO BE SURE WHICH YOU HAVE. IFTO BE SURE WHICH YOU HAVE. IFTO BE SURE WHICH YOU HAVE. IFTO BE SURE WHICH YOU HAVE. IFTHE WIRE NUMBERS ARE 42 ANDTHE WIRE NUMBERS ARE 42 ANDTHE WIRE NUMBERS ARE 42 ANDTHE WIRE NUMBERS ARE 42 ANDTHE WIRE NUMBERS ARE 42 AND30 TO TERMINALS 1 AND 2, THIS IS30 TO TERMINALS 1 AND 2, THIS IS30 TO TERMINALS 1 AND 2, THIS IS30 TO TERMINALS 1 AND 2, THIS IS30 TO TERMINALS 1 AND 2, THIS ISA 115 V AC CIRCUIT. IF THE WIREA 115 V AC CIRCUIT. IF THE WIREA 115 V AC CIRCUIT. IF THE WIREA 115 V AC CIRCUIT. IF THE WIREA 115 V AC CIRCUIT. IF THE WIRENUMBERS ARE 66 AND 67, IT IS A 0NUMBERS ARE 66 AND 67, IT IS A 0NUMBERS ARE 66 AND 67, IT IS A 0NUMBERS ARE 66 AND 67, IT IS A 0NUMBERS ARE 66 AND 67, IT IS A 0

9

Siemens Torque (lb-in)Torque (lb-in)Torque (lb-in)Torque (lb-in)Torque (lb-in)Drive Output 4TB2Amp Rating 4TB1 4TB3, 4TB5, 4TB4

4TB6 & 4TB734 A or less 7 10.6 4.4Above 34 A 7 26.5 4.4

Woertz/Entrelec Torque (lb-in)Torque (lb-in)Torque (lb-in)Torque (lb-in)Torque (lb-in)Drive Output 4TB2Amp Rating 4TB1 4TB3, 4TB5, 4TB4

4TB6 & 4TB734 A or less 31.5 to 35.0 31.5 to 35.0 7.2 to 8.0Above 34 A 31.5 to 35.0 45.0 to 50.0 7.2 to 8.0

TO 10 V DC SPEED SIGNAL OUT-TO 10 V DC SPEED SIGNAL OUT-TO 10 V DC SPEED SIGNAL OUT-TO 10 V DC SPEED SIGNAL OUT-TO 10 V DC SPEED SIGNAL OUT-PUT. FAILURE TO CONFIRMPUT. FAILURE TO CONFIRMPUT. FAILURE TO CONFIRMPUT. FAILURE TO CONFIRMPUT. FAILURE TO CONFIRMWHICH OUTPUT YOU HAVEWHICH OUTPUT YOU HAVEWHICH OUTPUT YOU HAVEWHICH OUTPUT YOU HAVEWHICH OUTPUT YOU HAVECOULD CAUSE AN ELECTRICALCOULD CAUSE AN ELECTRICALCOULD CAUSE AN ELECTRICALCOULD CAUSE AN ELECTRICALCOULD CAUSE AN ELECTRICALSHOCK HAZARD, DAMAGE THESHOCK HAZARD, DAMAGE THESHOCK HAZARD, DAMAGE THESHOCK HAZARD, DAMAGE THESHOCK HAZARD, DAMAGE THECONNECTED EQUIPMENT ORCONNECTED EQUIPMENT ORCONNECTED EQUIPMENT ORCONNECTED EQUIPMENT ORCONNECTED EQUIPMENT ORBOTH.BOTH.BOTH.BOTH.BOTH.

2.152.152.152.152.15 TORQUE SPECIFICATIONSTORQUE SPECIFICATIONSTORQUE SPECIFICATIONSTORQUE SPECIFICATIONSTORQUE SPECIFICATIONS

All of the screws on the field terminal connectionsmust be torqued according to the tables to the right.Two different types of terminal blocks may be used. Ifthe terminal blocks are beige colored, they are manu-factured by Siemens and must be tightened per thefirst table. If the blocks are gray colored, they aremanufactured by Entrelec or Woertz and must betightened per the second table.

Drive Currents, and Isolation Transformer Sizing TableDrive Currents, and Isolation Transformer Sizing TableDrive Currents, and Isolation Transformer Sizing TableDrive Currents, and Isolation Transformer Sizing TableDrive Currents, and Isolation Transformer Sizing Table

NominalNominalNominalNominalNominal Drive Drive Drive Drive Drive 11111 Drive Drive Drive Drive Drive 22222 MinimumMinimumMinimumMinimumMinimum MinimumMinimumMinimumMinimumMinimum Isolation Isolation Isolation Isolation Isolation 33333

460 V AC460 V AC460 V AC460 V AC460 V AC InputInputInputInputInput OutputOutputOutputOutputOutput Power andPower andPower andPower andPower and Transformer SizeTransformer SizeTransformer SizeTransformer SizeTransformer SizeMotorMotorMotorMotorMotor CurrentCurrentCurrentCurrentCurrent CurrentCurrentCurrentCurrentCurrent Ground WiringGround WiringGround WiringGround WiringGround Wiring (kVA)(kVA)(kVA)(kVA)(kVA)

Size (AWG)Size (AWG)Size (AWG)Size (AWG)Size (AWG)HPHPHPHPHP (amperes)(amperes)(amperes)(amperes)(amperes) (amperes)(amperes)(amperes)(amperes)(amperes) DriveDriveDriveDriveDrive Drive w/bypassDrive w/bypassDrive w/bypassDrive w/bypassDrive w/bypass

5 12 7.6 14 11 117½ 15 11 12 14 1510 19 15 10 20 2015 26 21 8 27 3420 34 28 8 34 3425 40 34 8 40 5130 42 40 6 40 6340 57 53 4 51 6350 73 65 3 75 9360 79 77 3 75 9375 100 100 1 93 145

Copper conductors are required. Power wiring must be 75oC rated. If higher temperature rated wiring isused, it must be sized based on 75oC wire ampacities.

Drive has been tested by UL and is suitable for use on a circuit capable of delivering not more than 40,000RMS symmetrical amperes, 575 V AC maximum.

1 Input current measured using a 460 V AC , 2500 kVA, 7% impedence transformer. Actual input current willvary with transformer size.

2 Refer to “Output Drive Current” rating on the plastic cover over the control board for this value.Values are based on true RMS amps.

3 Isolation transformer sizing is based on 460 V AC input for drives without bypass. Consult Graham forother input voltages. isolation transformaers must be designed for use with adjustable frequency drives.

10

SECTION 3.SECTION 3.SECTION 3.SECTION 3.SECTION 3.

OPERAOPERAOPERAOPERAOPERATTTTTOR CONTROLSOR CONTROLSOR CONTROLSOR CONTROLSOR CONTROLS

The following controls, displays and indicators are lo-cated on the operator control panel on the door of the1703 Series drives. This panel consists of soft touchmembrane switches, a 3½ digit backlit LCD displayand status indicating LCDs. On newer displays, theback light will automatically turn itself off after a fewminutes of inactivity. To turn on the back light, pressany of the membrane switches.

3.1 SWITCHES3.1 SWITCHES3.1 SWITCHES3.1 SWITCHES3.1 SWITCHES

3.1.13.1.13.1.13.1.13.1.1 START SELECT SWITCHESSTART SELECT SWITCHESSTART SELECT SWITCHESSTART SELECT SWITCHESSTART SELECT SWITCHES

The start select switches consist of three mem-brane switches (HAND, OFF, AUTO). Thestart/stop functions of the drive are controlledusing these switches and the customer’s remotestart/stop contacts connected in series with ter-minals 3 and 4 of terminal strip 4TB4.

HANDHANDHANDHANDHAND - The drive is commanded to energizethe run relay and start. In the HAND positionany customer interconnect contacts connectedto 4TB4 terminals 3 and 4 will be overridden.The HAND LCD on the display panel will bevisible.

OFFOFFOFFOFFOFF - The drive is commanded to stop. In theOFF position any customer interconnect con-tacts connected to 4TB4 terminals 3 and 4 willbe overridden. The OFF LCD on the displaypanel will be visible.

AUTOAUTOAUTOAUTOAUTO - The drive is commanded to start only ifthe customer interlock contacts connected to4TB4 terminals 3 and 4 are closed. The AUTOLCD on the display panel will be displayed.

3.1.23.1.23.1.23.1.23.1.2 SPEED SELECT SWITCHESSPEED SELECT SWITCHESSPEED SELECT SWITCHESSPEED SELECT SWITCHESSPEED SELECT SWITCHES

The speed select switches consist of two mem-brane switches (LOC, REM). These switches se-lect the speed reference input to be tracked.

LOCLOCLOCLOCLOC - In the LOCAL position, drive speed iscontrolled with the SPEED switches (▲, ▼) onthe operator panel. The LOC LCD on the dis-play panel will be visible.

REMREMREMREMREM - The REMOTE selection commands thedrive to track the speed commands being pro-vided from the customer’s control system on4TB4 terminals 13 and 14. This input can be avoltage or current signal. In the REMOTEmode, the REM LCD on the display panel willbe visible.

3.1.33.1.33.1.33.1.33.1.3 SPEED SWITCHESSPEED SWITCHESSPEED SWITCHESSPEED SWITCHESSPEED SWITCHES

The speed switches consist of two membraneswitches (▲,▼) which are used to increase anddecrease the drive speed command when theLOCAL mode is selected. The LOC LCD mustbe displayed for the switches to control drivespeed. As the speed command is changed usingthe up or down buttons, the “MIN <—> MAX”display will light more or fewer LCD segments.

▲ - Increase speed command inLOCAL mode

▼ - Decrease speed command inLOCAL mode

3.1.4 METER SELECT3.1.4 METER SELECT3.1.4 METER SELECT3.1.4 METER SELECT3.1.4 METER SELECT SWITCH SWITCH SWITCH SWITCH SWITCH

The meter select membrane switch isused to step through the LCD displaymeter functions. As the different meterfunctions are selected, their signals willbe displayed on the 3½ digit LCD displayand the meter function selected will dis-play that specific LCD section. The meterfunction LCDs will only remain displayedif that meter function has been installed.The meter display sequence is:

% SPEED% LOADOperator Control Panel and ReadoutsOperator Control Panel and ReadoutsOperator Control Panel and ReadoutsOperator Control Panel and ReadoutsOperator Control Panel and Readouts

11

DANGER!THE BYPASS DISCONNECTTHE BYPASS DISCONNECTTHE BYPASS DISCONNECTTHE BYPASS DISCONNECTTHE BYPASS DISCONNECTSWITCH DOES NOT DISCONNECTSWITCH DOES NOT DISCONNECTSWITCH DOES NOT DISCONNECTSWITCH DOES NOT DISCONNECTSWITCH DOES NOT DISCONNECTPOWER FROM THE MOTOR ORPOWER FROM THE MOTOR ORPOWER FROM THE MOTOR ORPOWER FROM THE MOTOR ORPOWER FROM THE MOTOR ORTHE DRIVE CIRCUITS. DO NOTTHE DRIVE CIRCUITS. DO NOTTHE DRIVE CIRCUITS. DO NOTTHE DRIVE CIRCUITS. DO NOTTHE DRIVE CIRCUITS. DO NOTSERVICE THE DRIVE UNLESSSERVICE THE DRIVE UNLESSSERVICE THE DRIVE UNLESSSERVICE THE DRIVE UNLESSSERVICE THE DRIVE UNLESSPOWER IS DISCONNECTED FROMPOWER IS DISCONNECTED FROMPOWER IS DISCONNECTED FROMPOWER IS DISCONNECTED FROMPOWER IS DISCONNECTED FROMTHE DRIVE BY MEANS OF THETHE DRIVE BY MEANS OF THETHE DRIVE BY MEANS OF THETHE DRIVE BY MEANS OF THETHE DRIVE BY MEANS OF THEDRIVE INPUT DISCONNECTDRIVE INPUT DISCONNECTDRIVE INPUT DISCONNECTDRIVE INPUT DISCONNECTDRIVE INPUT DISCONNECTSWITCH, THE INPUT POWER DIS-SWITCH, THE INPUT POWER DIS-SWITCH, THE INPUT POWER DIS-SWITCH, THE INPUT POWER DIS-SWITCH, THE INPUT POWER DIS-CONNECT SWITCH, OR THE CUS-CONNECT SWITCH, OR THE CUS-CONNECT SWITCH, OR THE CUS-CONNECT SWITCH, OR THE CUS-CONNECT SWITCH, OR THE CUS-TOMER-SUPPLIED DISCONNECTTOMER-SUPPLIED DISCONNECTTOMER-SUPPLIED DISCONNECTTOMER-SUPPLIED DISCONNECTTOMER-SUPPLIED DISCONNECTSWITCH FEEDING THE DRIVE EN-SWITCH FEEDING THE DRIVE EN-SWITCH FEEDING THE DRIVE EN-SWITCH FEEDING THE DRIVE EN-SWITCH FEEDING THE DRIVE EN-CLOSURE.CLOSURE.CLOSURE.CLOSURE.CLOSURE.

3.2.33.2.33.2.33.2.33.2.3 MAIN DISCONNECTMAIN DISCONNECTMAIN DISCONNECTMAIN DISCONNECTMAIN DISCONNECTSWITCH SWITCH SWITCH SWITCH SWITCH (optional)

This rotary switch is used to disconnect inputpower from both the drive and the bypass cir-cuits. It may be supplied with or without fusing.If supplied with fusing, this FUSED MAINDISCONNECT SWITCH provides motor fusingwhen the motor is run in bypass.

3.2.43.2.43.2.43.2.43.2.4 DRIVE/OFF/LINEDRIVE/OFF/LINEDRIVE/OFF/LINEDRIVE/OFF/LINEDRIVE/OFF/LINETRANSFER SWITCH TRANSFER SWITCH TRANSFER SWITCH TRANSFER SWITCH TRANSFER SWITCH (op-tional)

The DRIVE/OFF/LINE switch is a rotaryswitch used as a motor transfer switch and amotor disconnect switch. The motor is trans-ferred between the output of the drive (normaloperation) and the output of a customer sup-plied motor starter (bypass mode) using thisswitch. For dual motor applications, twoDRIVE/OFF/LINE switches are used. If eitherswitch is in the OFF position, the drive will notrun.

DRIVEDRIVEDRIVEDRIVEDRIVE - The motor is connected to the outputof the drive and isolated from the customer’smotor starter. Motor operation is controlled bythe variable voltage and frequency from thedrive.

OFFOFFOFFOFFOFF - The motor is isolated from both powersources (drive and customer motor starter). Theswitch is being used as a motor disconnectswitch.

LINELINELINELINELINE - The motor is connected to the output ofthe customer provided motor starter and iso-lated from the output of the drive. Motor opera-

VOLTSAMPSHzRPMKWAUX

If the optional displays are not installed, themeter sequence will pause at that display mo-mentarily and then cycle to the next display.Standard meter functions displayed are %SPEED, % LOAD and VOLTS (output voltage).

3.2 OPTION SWITCHES3.2 OPTION SWITCHES3.2 OPTION SWITCHES3.2 OPTION SWITCHES3.2 OPTION SWITCHES

The option switches are used when optional featuressuch as the bypass or drive input disconnect switchoptions are supplied.

3.2.13.2.13.2.13.2.13.2.1 DRIVE INPUT DISCONNECTDRIVE INPUT DISCONNECTDRIVE INPUT DISCONNECTDRIVE INPUT DISCONNECTDRIVE INPUT DISCONNECTSWITCH SWITCH SWITCH SWITCH SWITCH (optional)

This rotary switch is used to disconnect incom-ing utility power to the drive.

DANGER!THE DRIVE DISCONNECT SWITCHTHE DRIVE DISCONNECT SWITCHTHE DRIVE DISCONNECT SWITCHTHE DRIVE DISCONNECT SWITCHTHE DRIVE DISCONNECT SWITCHDOES NOT DISABLE POWER TODOES NOT DISABLE POWER TODOES NOT DISABLE POWER TODOES NOT DISABLE POWER TODOES NOT DISABLE POWER TOTHE BYPASS CIRCUITRY IN-THE BYPASS CIRCUITRY IN-THE BYPASS CIRCUITRY IN-THE BYPASS CIRCUITRY IN-THE BYPASS CIRCUITRY IN-STALLED INSIDE THE DRIVESTALLED INSIDE THE DRIVESTALLED INSIDE THE DRIVESTALLED INSIDE THE DRIVESTALLED INSIDE THE DRIVEWHEN IT IS IN THE OFF POSI-WHEN IT IS IN THE OFF POSI-WHEN IT IS IN THE OFF POSI-WHEN IT IS IN THE OFF POSI-WHEN IT IS IN THE OFF POSI-TION.TION.TION.TION.TION.

DANGER!THE DRIVE DISCONNECT SWITCHTHE DRIVE DISCONNECT SWITCHTHE DRIVE DISCONNECT SWITCHTHE DRIVE DISCONNECT SWITCHTHE DRIVE DISCONNECT SWITCHDOES NOT REMOVE POWER TODOES NOT REMOVE POWER TODOES NOT REMOVE POWER TODOES NOT REMOVE POWER TODOES NOT REMOVE POWER TOTHE MOTOR OR THE BYPASS CIR-THE MOTOR OR THE BYPASS CIR-THE MOTOR OR THE BYPASS CIR-THE MOTOR OR THE BYPASS CIR-THE MOTOR OR THE BYPASS CIR-CUITS IF THE BYPASS PROVIDEDCUITS IF THE BYPASS PROVIDEDCUITS IF THE BYPASS PROVIDEDCUITS IF THE BYPASS PROVIDEDCUITS IF THE BYPASS PROVIDEDIS A DRIVE/OFF/LINE TRANSFERIS A DRIVE/OFF/LINE TRANSFERIS A DRIVE/OFF/LINE TRANSFERIS A DRIVE/OFF/LINE TRANSFERIS A DRIVE/OFF/LINE TRANSFERSWITCH USING A CUSTOMERSWITCH USING A CUSTOMERSWITCH USING A CUSTOMERSWITCH USING A CUSTOMERSWITCH USING A CUSTOMERPROVIDED MOTOR STARTER.PROVIDED MOTOR STARTER.PROVIDED MOTOR STARTER.PROVIDED MOTOR STARTER.PROVIDED MOTOR STARTER.

3.2.23.2.23.2.23.2.23.2.2 BYPASS DISCONNECTBYPASS DISCONNECTBYPASS DISCONNECTBYPASS DISCONNECTBYPASS DISCONNECTSWITCH SWITCH SWITCH SWITCH SWITCH (optional)

This rotary switch is used to disconnect inputpower from the bypass motor starter.

12

tion is now full speed (no variable speed control)when the customer’s motor starter is energized.

3.2.53.2.53.2.53.2.53.2.5 DRIVE/OFF/LINE/TESTDRIVE/OFF/LINE/TESTDRIVE/OFF/LINE/TESTDRIVE/OFF/LINE/TESTDRIVE/OFF/LINE/TESTTRANSFER SWITCH TRANSFER SWITCH TRANSFER SWITCH TRANSFER SWITCH TRANSFER SWITCH (op-tional)

This option combines four functions. It acts as amotor transfer switch, motor disconnect switch,drive input disconnect switch, and drive testmode for service and maintenance while systemoperation is maintained in bypass. This optionmay be supplied either with or without a motorstarter. A motor starter is required for LINEoperation.

DRIVEDRIVEDRIVEDRIVEDRIVE - The motor is connected to the outputof the drive and power is connected to the inputof the drive. Motor speed is controlled by thedrive.

OFFOFFOFFOFFOFF - The motor and the drive are discon-nected from the power source. The switch actsas a drive input disconnect switch and a bypassinput disconnect switch to isolate the drive andmotor from power sources during service andmaintenance functions.

LINELINELINELINELINE - The motor is connected to the bypassmotor starter for full speed operation. Power isdisconnected from the drive input and the mo-tor is isolated from the drive output for servicefunctions on the drive without interruption ofcustomer operation. If the motor starter is sup-plied by Graham, the LINE ON/OFF switchcontrols the starter.

TESTTESTTESTTESTTEST - The motor is connected to the bypassmotor starter for continued operation of thecustomer’s application at full speed while test-ing the drive under power. The test mode dis-connects the motor from the output of the driveand connects power to the input of the drive foroperational testing without the motor.

DANGER!DO NOT OPERATE ANY OF THEDO NOT OPERATE ANY OF THEDO NOT OPERATE ANY OF THEDO NOT OPERATE ANY OF THEDO NOT OPERATE ANY OF THESTANDARD OPTION SWITCHESSTANDARD OPTION SWITCHESSTANDARD OPTION SWITCHESSTANDARD OPTION SWITCHESSTANDARD OPTION SWITCHESWHILE THE MOTOR IS RUNNING,WHILE THE MOTOR IS RUNNING,WHILE THE MOTOR IS RUNNING,WHILE THE MOTOR IS RUNNING,WHILE THE MOTOR IS RUNNING,OR WHILE THE CUSTOMER’S MO-OR WHILE THE CUSTOMER’S MO-OR WHILE THE CUSTOMER’S MO-OR WHILE THE CUSTOMER’S MO-OR WHILE THE CUSTOMER’S MO-TOR STARTER IS ENERGIZED. AL-TOR STARTER IS ENERGIZED. AL-TOR STARTER IS ENERGIZED. AL-TOR STARTER IS ENERGIZED. AL-TOR STARTER IS ENERGIZED. AL-WAYS STOP THE DRIVE OR MO-WAYS STOP THE DRIVE OR MO-WAYS STOP THE DRIVE OR MO-WAYS STOP THE DRIVE OR MO-WAYS STOP THE DRIVE OR MO-TOR STARTER OPERATION BE-TOR STARTER OPERATION BE-TOR STARTER OPERATION BE-TOR STARTER OPERATION BE-TOR STARTER OPERATION BE-FORE OPERATING AN INPUT DIS-FORE OPERATING AN INPUT DIS-FORE OPERATING AN INPUT DIS-FORE OPERATING AN INPUT DIS-FORE OPERATING AN INPUT DIS-CONNECT, MOTOR DISCONNECT,CONNECT, MOTOR DISCONNECT,CONNECT, MOTOR DISCONNECT,CONNECT, MOTOR DISCONNECT,CONNECT, MOTOR DISCONNECT,

MOTOR TRANSFER SWITCH ORMOTOR TRANSFER SWITCH ORMOTOR TRANSFER SWITCH ORMOTOR TRANSFER SWITCH ORMOTOR TRANSFER SWITCH ORDRIVE/OFF/LINE/TEST SWITCH.DRIVE/OFF/LINE/TEST SWITCH.DRIVE/OFF/LINE/TEST SWITCH.DRIVE/OFF/LINE/TEST SWITCH.DRIVE/OFF/LINE/TEST SWITCH.

3.2.63.2.63.2.63.2.63.2.6 INTERLOCKEDINTERLOCKEDINTERLOCKEDINTERLOCKEDINTERLOCKEDCONTACTOR BYPASSCONTACTOR BYPASSCONTACTOR BYPASSCONTACTOR BYPASSCONTACTOR BYPASS (op-tional)

Interlocked contactor bypass is the use of twointerlocked conventional motor starter contac-tors to provide the ability to transfer the motorto full speed operation in the event of a drivefault or during maintenance. This circuitry canbe operated manually or automatically. Whenthe drive is equipped with this option, the frontpanel has three additional switches and threeadditional panel indicator lamps labeledDRIVE, OFF and LINE.

The DRIVE/OFF/LINE selector switches allowthe user to select:

1. Variable speed from the drive. (DRIVE)2. Disconnection of the motor from the

drive and the motor starter. (OFF)3. Constant full speed operation from a

conventional motor starter. (LINE)

DRIVEDRIVEDRIVEDRIVEDRIVE - The motor operates with variablespeed operation from the drive. The DRIVElamp on the front panel is illuminated. Inter-locks from the energized DRIVE contactor lockthe bypass motor starter out of operation.

OFFOFFOFFOFFOFF - The motor is disconnected from both thedrive and the bypass power sources. The OFFlamp on the front panel is illuminated. Thedrive contactor and the line contactor are dis-abled.

LINELINELINELINELINE - The motor operates at a constant speedfrom the motor starter connected to the utilitypower line. The LINE lamp on the front panel isilluminated. Interlocks from the energizedLINE contactor lock the drive in the stop modeand the drive contactor in the de-energizedmode to prevent backfeeding of utility power tothe drive.

AUTO TRANSFERAUTO TRANSFERAUTO TRANSFERAUTO TRANSFERAUTO TRANSFER (If provided) Automatictransfer to the bypass mode (LINE) is accom-plished by recognition of a fault condition in thedrive circuitry which does not reset and restartthe drive in a designated amount of time. If thefault condition resets within the time delay, theLINE transfer system is not activated. If thefault condition does not reset within the allot-ted time delay period, the LINE contactor is en-

13

ergized. At the time the LINE contactor is acti-vated:

1. The DRIVE contactor is de-energized toisolate the motor and utility power fromthe output of the drive to preventbackfeeding.

2. The drive’s emergency shutdown cir-cuitry is activated.

The required time delay before automatictransfer is determined by the application andthe amount of inertia in each individual sys-tem. Delay time selection is determined by4TMR3 in the bypass circuitry.

3.2.73.2.73.2.73.2.73.2.7 TRANSFER SWITCH MOTORTRANSFER SWITCH MOTORTRANSFER SWITCH MOTORTRANSFER SWITCH MOTORTRANSFER SWITCH MOTORSELECTIONSELECTIONSELECTIONSELECTIONSELECTION (optional)

This three position manual switch will connectthe output of the drive to either motor #1 ormotor #2. In the middle “OFF” position, neithermotor is connected to the drive.

WARNING!DO NOT TURN THIS SWITCH UN-DO NOT TURN THIS SWITCH UN-DO NOT TURN THIS SWITCH UN-DO NOT TURN THIS SWITCH UN-DO NOT TURN THIS SWITCH UN-LESS THE DRIVE AND BOTH MO-LESS THE DRIVE AND BOTH MO-LESS THE DRIVE AND BOTH MO-LESS THE DRIVE AND BOTH MO-LESS THE DRIVE AND BOTH MO-TORS ARE STOPPEDTORS ARE STOPPEDTORS ARE STOPPEDTORS ARE STOPPEDTORS ARE STOPPED

This switch is interlocked with the drive toshutdown the drive if the switch is turned whilethe drive is running.

3.2.83.2.83.2.83.2.83.2.8 CONTACTOR MOTORCONTACTOR MOTORCONTACTOR MOTORCONTACTOR MOTORCONTACTOR MOTORSELECTIONSELECTIONSELECTIONSELECTIONSELECTION (optional)

When motor alternation is required for an ap-plication which has a backup or redundant sys-tem, such as a lead/lag pumping system, CON-TACTOR MOTOR SELECTION is typicallyprovided.

In this system only one motor may be operatedat any time. Motor operation is determined viaa three position door mounted selector switch.Motor #1 position connects that motor to thedrive through a contactor. Motor # 2 positionconnects that motor through a second contac-tor. With the switch in the AUTO position, mo-tor selection is determined via a customer con-tact closure.

14


EXTERNAL DRIVE STEXTERNAL DRIVE STEXTERNAL DRIVE STEXTERNAL DRIVE STEXTERNAL DRIVE STAAAAATUSTUSTUSTUSTUSINDICAINDICAINDICAINDICAINDICATTTTTORSORSORSORSORS

The external drive status LCD indicators appear onthe door mounted panel display to the left and belowthe 3½ digit LCD display.

4.14.14.14.14.1 POWER ONPOWER ONPOWER ONPOWER ONPOWER ON indicates the 120 V AC controlpower of the drive is energized.

4.24.24.24.24.2 READYREADYREADYREADYREADY indicates that the drive power-up se-quence has been successfully completed. There are nodrive faults. This indicator will go out when the driveis in the run mode.

4.34.34.34.34.3 RUNRUNRUNRUNRUN indicates that the drive is in the run modeand there are no drive faults.

4.44.44.44.44.4 @@@@@ indicates that the drive circuits have reachedand synchronized with the commanded speed refer-ence signal. The AT SPEED indicator displays onlywhen speed synchronization is maintained.

NOTE: IF THE SPEED CONTROLNOTE: IF THE SPEED CONTROLNOTE: IF THE SPEED CONTROLNOTE: IF THE SPEED CONTROLNOTE: IF THE SPEED CONTROLSIGNAL IS UNSTABLE, SPEED OS-SIGNAL IS UNSTABLE, SPEED OS-SIGNAL IS UNSTABLE, SPEED OS-SIGNAL IS UNSTABLE, SPEED OS-SIGNAL IS UNSTABLE, SPEED OS-CILLATIONS (HUNTING) WILLCILLATIONS (HUNTING) WILLCILLATIONS (HUNTING) WILLCILLATIONS (HUNTING) WILLCILLATIONS (HUNTING) WILLCAUSE THIS LCD TO FLASH ONCAUSE THIS LCD TO FLASH ONCAUSE THIS LCD TO FLASH ONCAUSE THIS LCD TO FLASH ONCAUSE THIS LCD TO FLASH ONAND OFF.AND OFF.AND OFF.AND OFF.AND OFF.

4.54.54.54.54.5 REVREVREVREVREV indicates the internal drive switch whichdetermines motor rotation direction has been acti-vated to REVERSE the direction of the motor’s rota-tion. This indicator should not be displayed for singledirection applications.

CAUTION!FOR SINGLE DIRECTION APPLI-FOR SINGLE DIRECTION APPLI-FOR SINGLE DIRECTION APPLI-FOR SINGLE DIRECTION APPLI-FOR SINGLE DIRECTION APPLI-CATIONS, CUSTOMER WIRINGCATIONS, CUSTOMER WIRINGCATIONS, CUSTOMER WIRINGCATIONS, CUSTOMER WIRINGCATIONS, CUSTOMER WIRINGSHOULD BE CORRECTED ATSHOULD BE CORRECTED ATSHOULD BE CORRECTED ATSHOULD BE CORRECTED ATSHOULD BE CORRECTED ATSTART-UP IF ROTATION IS INCOR-START-UP IF ROTATION IS INCOR-START-UP IF ROTATION IS INCOR-START-UP IF ROTATION IS INCOR-START-UP IF ROTATION IS INCOR-RECT. USING THE REVERSERECT. USING THE REVERSERECT. USING THE REVERSERECT. USING THE REVERSERECT. USING THE REVERSESWITCH COULD CAUSE OPERA-SWITCH COULD CAUSE OPERA-SWITCH COULD CAUSE OPERA-SWITCH COULD CAUSE OPERA-SWITCH COULD CAUSE OPERA-TOR CONFUSION AND/OR EQUIP-TOR CONFUSION AND/OR EQUIP-TOR CONFUSION AND/OR EQUIP-TOR CONFUSION AND/OR EQUIP-TOR CONFUSION AND/OR EQUIP-MENT DAMAGE IF IMPROPERLYMENT DAMAGE IF IMPROPERLYMENT DAMAGE IF IMPROPERLYMENT DAMAGE IF IMPROPERLYMENT DAMAGE IF IMPROPERLYUSED.USED.USED.USED.USED.

4.64.64.64.64.6 FAULTFAULTFAULTFAULTFAULT displays to indicate that a fault condi-tion exists from the OL, PL, OC, UV, OV, GF or EXTfault circuits.4.74.74.74.74.7 OLOLOLOLOL displays when the OVERLOAD circuit is ac-tivated due to excessive current being drawn by themotor.

Potential causes of this fault trip are:1. Motor bound or not free to rotate.

Example: Brake on, bearing problems, etc.2. Belts improperly tensioned or aligned.3. Sheaves and/or shaft couplings improperly

aligned.4. Maximum speed of the drive set too high.5. Misapplication or undersized drive.

After eliminating the cause, reset an overload fault byswitching the drive to stop mode and then restarting.An overload fault cannot be reset automatically or bythe optional fault switch.

4.84.84.84.84.8 PLPLPLPLPL flashes on and off if the L1 input line phase islow or missing. The PHASE LOSS LED should not bevisible if the voltage on L1 phase is within tolerance.

NOTE:NOTE:NOTE:NOTE:NOTE: IF PHASE L2 OR L3 IS LOW IF PHASE L2 OR L3 IS LOW IF PHASE L2 OR L3 IS LOW IF PHASE L2 OR L3 IS LOW IF PHASE L2 OR L3 IS LOWIN VOLTAGE OR MISSING, THE 120IN VOLTAGE OR MISSING, THE 120IN VOLTAGE OR MISSING, THE 120IN VOLTAGE OR MISSING, THE 120IN VOLTAGE OR MISSING, THE 120VAC CIRCUITS OF THE DRIVE AREVAC CIRCUITS OF THE DRIVE AREVAC CIRCUITS OF THE DRIVE AREVAC CIRCUITS OF THE DRIVE AREVAC CIRCUITS OF THE DRIVE AREDE-ENERGIZED AND THE DRIVEDE-ENERGIZED AND THE DRIVEDE-ENERGIZED AND THE DRIVEDE-ENERGIZED AND THE DRIVEDE-ENERGIZED AND THE DRIVEWILL SHUT DOWN. THE PL LEDWILL SHUT DOWN. THE PL LEDWILL SHUT DOWN. THE PL LEDWILL SHUT DOWN. THE PL LEDWILL SHUT DOWN. THE PL LEDDOES NOT DISPLAY FOR THESEDOES NOT DISPLAY FOR THESEDOES NOT DISPLAY FOR THESEDOES NOT DISPLAY FOR THESEDOES NOT DISPLAY FOR THESECONDITIONS.CONDITIONS.CONDITIONS.CONDITIONS.CONDITIONS.

See Section 7.2.5 for information on resetting this fault.

4.94.94.94.94.9 OTOTOTOTOT displays if the internal thermostats of thedrive see an OVER TEMPERATURE. There are twothermostat circuits.

Internal ambient 160oF (70oooooC) (max)Heatsink 195oF (90oC) (max)

If this fault circuit activates, check to ensure:1. All drive fans are functioning properly.2. The air flow paths are not clogged or re-

stricted.3. The ambient temperature outside of the enclo-

sure is not in excess of 104oF (40oC).4. The clearances required in Section 1.1 of this

manual are as specified.5. The drive is mounted vertically.6. The filters, if supplied, are clean and clear.

This fault automatically resets when the drive coolsdown.

4.104.104.104.104.10 OCOCOCOCOC displays if the OVERCURRENT circuit is ac-tivated. An OVERCURRENT trip indicates a shortcircuit in the inverter section of the drive or in themotor wiring, or the drive was subjected to a severesurge of input or output current.

If this circuit trips check:1. The motor and motor wiring for a short from

phase to phase or phase to ground.2. The motor wiring for an intermittent/loose

15

1. Lack of, or defective operation of, a checkvalve in a pumping system.

2. Lack of, or defective operation of, a back draftdamper on a fan system.

3. Defective damper control in a variable air vol-ume (VAV) system.


4.134.134.134.134.13 GFGFGFGFGF displays if the motor or its wiring GROUNDFAULTS by short circuiting or arcing to ground. SeeSection 7.2.1 for information on resetting this fault.

4.144.144.144.144.14 EXTEXTEXTEXTEXT displays if the motor overload is tripped orif drive sees an open circuit in the EXTERNAL faultcircuitry supplied by the customer wiring terminatedon 4TB4 terminals 5 and 6. This circuitry includes thecustomer’s emergency shutdown interlocks such asthe fire alarm contact, freeze stats, high pressure cut-out contacts, etc.

DANGER!THE DRIVE WILL RESTART AUTO-THE DRIVE WILL RESTART AUTO-THE DRIVE WILL RESTART AUTO-THE DRIVE WILL RESTART AUTO-THE DRIVE WILL RESTART AUTO-MATICALLY WHEN AN EXTERNALMATICALLY WHEN AN EXTERNALMATICALLY WHEN AN EXTERNALMATICALLY WHEN AN EXTERNALMATICALLY WHEN AN EXTERNALFAULT IS CLEARED UNLESS AFAULT IS CLEARED UNLESS AFAULT IS CLEARED UNLESS AFAULT IS CLEARED UNLESS AFAULT IS CLEARED UNLESS ASTOP COMMAND IS GIVEN PRIORSTOP COMMAND IS GIVEN PRIORSTOP COMMAND IS GIVEN PRIORSTOP COMMAND IS GIVEN PRIORSTOP COMMAND IS GIVEN PRIORTO RESETTING THE FAULT.TO RESETTING THE FAULT.TO RESETTING THE FAULT.TO RESETTING THE FAULT.TO RESETTING THE FAULT.

4.154.154.154.154.15 LAMP TEST/HIGH VOLTAGELAMP TEST/HIGH VOLTAGELAMP TEST/HIGH VOLTAGELAMP TEST/HIGH VOLTAGELAMP TEST/HIGH VOLTAGEImmediately upon applying power, all fault indicatorsand the READY, RUN, TEMP and @ LCDs will dis-play briefly as a lamp test.

If the input line voltage from the utility is excessivelyhigh, the individual fault, READY, RUN, TEMP and@ LCDs will display and remain on.

4.164.164.164.164.16 METER DISPLAY INDICATORSMETER DISPLAY INDICATORSMETER DISPLAY INDICATORSMETER DISPLAY INDICATORSMETER DISPLAY INDICATORSWhen the meter select switch is pressed and released,it will step to the next meter display. The appropriatemeter display indicator will display to indicate whichfunction is currently shown on the LCD display. Themeter function indicators are: % SPEED, AMPS, %LOAD, VOLTS, Hz, RPM, kW and AUX. If the meterfunction is not installed, that function will displaybriefly and then cycle to the display.

4.174.174.174.174.17 MIN <—> MAXMIN <—> MAXMIN <—> MAXMIN <—> MAXMIN <—> MAXThe MIN <—> MAX speed indicator is a bar scale thatdisplays additional LCD segments as the local speedcommand to the drive is increased and extinguishessegments as the speed command is decreased.

NOTE:NOTE:NOTE:NOTE:NOTE: THE DRIVE SPEED IS THE DRIVE SPEED IS THE DRIVE SPEED IS THE DRIVE SPEED IS THE DRIVE SPEED ISSHOWN ON THE LCD DISPLAY ASSHOWN ON THE LCD DISPLAY ASSHOWN ON THE LCD DISPLAY ASSHOWN ON THE LCD DISPLAY ASSHOWN ON THE LCD DISPLAY AS% SPEED.% SPEED.% SPEED.% SPEED.% SPEED.

connection.3. The motor wiring for proper voltage connec-

tion.4. That there are no power factor correction ca-

pacitors installed between the drive outputand the motor.

5. That the motor disconnect, motor starter orcontactor, or other devices which can open andclose connections between the output of thedrive and motor are not being operated whilethe drive is running.

6. Check SCRs SCR1, SCR2, SCR3, SCR4, SCR5and SCR6 for a short or open circuit or badgate sections.

7. Check the conduction or commutation transis-tors in the Q1/Q2 module for a short or opencircuit.

8. Check the commutation power supply fuse F3on the snubber board.

See section 7.2.4 for information on resetting this fault.

4.114.114.114.114.11 UVUVUVUVUV displays when the UNDERVOLTAGE circuitis activated due to a loss of power (blackout), low volt-age (brownout) or loss of phase L2 or L3 power. TheLCD will display when power is restored.

If the UNDERVOLTAGE circuit activates check:1. The incoming line voltage is less than 90% of

nominal.2. Momentary interruptions or severe drops in

power line voltage due to the operation ofother equipment, overloading the transformeron the incoming power to the drive, or utilitycompany power drops.


4.124.124.124.124.12 OVOVOVOVOV is displayed when the inverter outputOVERVOLTAGE circuit is activated by a regenerat-ing motor. The rotation of a motor in excess of thedrive’s commanded speed, or in the reverse directionof the drive’s commanded rotation causes the motor toact as a generating power source. This “backfeeding”of power causes the OVERVOLTAGE fault circuit totrip if the drive output voltage levels become exces-sive.

NOTE:NOTE:NOTE:NOTE:NOTE: THIS OV CIRCUIT DOES THIS OV CIRCUIT DOES THIS OV CIRCUIT DOES THIS OV CIRCUIT DOES THIS OV CIRCUIT DOESNOT MONITOR OR PROTECTNOT MONITOR OR PROTECTNOT MONITOR OR PROTECTNOT MONITOR OR PROTECTNOT MONITOR OR PROTECTAGAINST HIGH POWER LINEAGAINST HIGH POWER LINEAGAINST HIGH POWER LINEAGAINST HIGH POWER LINEAGAINST HIGH POWER LINEVOLTAGES.VOLTAGES.VOLTAGES.VOLTAGES.VOLTAGES.

OV trips are typically caused by the application. Thesystem either causes the motor to rotate without thedrive as the prime mover, or rotate faster than theprime mover is commanding it to operate (overhaul-ing). Examples of typical application related problemsare:

16

brighter as the drive speed is increased. The COM-MUTATION DRIVE LED indicates the frequency atwhich the Q2 commutation transistor is pulsed to fa-cilitate the inverter SCR commutation (turn off).

WARNING!IF THE COMM DRIVE LED ISIF THE COMM DRIVE LED ISIF THE COMM DRIVE LED ISIF THE COMM DRIVE LED ISIF THE COMM DRIVE LED ISBRIGHTLY ILLUMINATED WHENBRIGHTLY ILLUMINATED WHENBRIGHTLY ILLUMINATED WHENBRIGHTLY ILLUMINATED WHENBRIGHTLY ILLUMINATED WHENNO RUN COMMAND IS PRESENT,NO RUN COMMAND IS PRESENT,NO RUN COMMAND IS PRESENT,NO RUN COMMAND IS PRESENT,NO RUN COMMAND IS PRESENT,THE CIRCUIT IS NOT FUNCTION-THE CIRCUIT IS NOT FUNCTION-THE CIRCUIT IS NOT FUNCTION-THE CIRCUIT IS NOT FUNCTION-THE CIRCUIT IS NOT FUNCTION-ING PROPERLY AND NO ATTEMPTING PROPERLY AND NO ATTEMPTING PROPERLY AND NO ATTEMPTING PROPERLY AND NO ATTEMPTING PROPERLY AND NO ATTEMPTSHOULD BE MADE TO RUN THESHOULD BE MADE TO RUN THESHOULD BE MADE TO RUN THESHOULD BE MADE TO RUN THESHOULD BE MADE TO RUN THEDRIVE.DRIVE.DRIVE.DRIVE.DRIVE.

5.45.45.45.45.4 COND DRIVECOND DRIVECOND DRIVECOND DRIVECOND DRIVE is a green LED which is nor-mally on. The LED is extinguished in the event of afault condition. The drive will not operate if theCOND DRIVE LED is not illuminated.

5.55.55.55.55.5 RUN CMDRUN CMDRUN CMDRUN CMDRUN CMD is a green LED that illuminateswhen a RUN COMMAND is given to the drive from4TB4 terminals 3 and 4. It should be illuminatedwhen the customer contacts 3 and 4 are closed and ex-tinguished when they are open.

SECTION 5.SECTION 5.SECTION 5.SECTION 5.SECTION 5.INTERNAL DRIVE STINTERNAL DRIVE STINTERNAL DRIVE STINTERNAL DRIVE STINTERNAL DRIVE STAAAAATUSTUSTUSTUSTUSINDICAINDICAINDICAINDICAINDICATTTTTORSORSORSORSORS

Many of the drive status indicators are displayed both internally and externally. The following circuits are dis-played in this dual indicator form.

CircuitCircuitCircuitCircuitCircuit Internal LEDInternal LEDInternal LEDInternal LEDInternal LED Normal Status of Internal LEDNormal Status of Internal LEDNormal Status of Internal LEDNormal Status of Internal LEDNormal Status of Internal LED

READY YELLOW On in READY mode - see 4.2AT SPEED YELLOW On when AT SPEED - see 4.4

RUN GREEN On in RUN - see 4.3TEMP GREEN On normally - see 4.9FAULT RED On in FAULT - see 4.6

OLI RED On in OVERLOAD - see 4.7OCI RED On in OVERCURRENT - see 4.10OVI RED On in OVERVOLTAGE - see 4.12UVI RED On in UNDERVOLTAGE see 4.11PLI RED On in PHASE LOSS - see 4.8GFI RED On in GROUND FAULT see 4.13

Additional status indicators are provided internally only to indicate BUS PWR, COMM P.S., COMM DRIVE,COND DRIVE and RUN CMD.

5.15.15.15.15.1 BUS PWRBUS PWRBUS PWRBUS PWRBUS PWR is a red LED that is illuminated whenBUS POWER is available on the DC bus. After poweris removed from the drive input, this LED will remainlit and dim slowly as the bus capacitors discharge.

DANGER!DO NOT ATTEMPT TO SERVICEDO NOT ATTEMPT TO SERVICEDO NOT ATTEMPT TO SERVICEDO NOT ATTEMPT TO SERVICEDO NOT ATTEMPT TO SERVICETHE DRIVE WHEN THE BUSTHE DRIVE WHEN THE BUSTHE DRIVE WHEN THE BUSTHE DRIVE WHEN THE BUSTHE DRIVE WHEN THE BUSPOWER LED IS ILLUMINATEDPOWER LED IS ILLUMINATEDPOWER LED IS ILLUMINATEDPOWER LED IS ILLUMINATEDPOWER LED IS ILLUMINATED

5.25.25.25.25.2 COMM P.S.COMM P.S.COMM P.S.COMM P.S.COMM P.S. is a green LED that is illuminatedwhen the COMMUTATION POWER SUPPLY is en-ergized. This LED should be on any time that inputpower is supplied to the drive.

DANGER!DO NOT ATTEMPT TO START THEDO NOT ATTEMPT TO START THEDO NOT ATTEMPT TO START THEDO NOT ATTEMPT TO START THEDO NOT ATTEMPT TO START THEDRIVE IF THE COMM P.S. LED ISDRIVE IF THE COMM P.S. LED ISDRIVE IF THE COMM P.S. LED ISDRIVE IF THE COMM P.S. LED ISDRIVE IF THE COMM P.S. LED ISNOT ILLUMINATED. DRIVE DAM-NOT ILLUMINATED. DRIVE DAM-NOT ILLUMINATED. DRIVE DAM-NOT ILLUMINATED. DRIVE DAM-NOT ILLUMINATED. DRIVE DAM-AGE CAN OCCUR IF ATTEMPTSAGE CAN OCCUR IF ATTEMPTSAGE CAN OCCUR IF ATTEMPTSAGE CAN OCCUR IF ATTEMPTSAGE CAN OCCUR IF ATTEMPTSARE MADE TO OPERATE THEARE MADE TO OPERATE THEARE MADE TO OPERATE THEARE MADE TO OPERATE THEARE MADE TO OPERATE THEDRIVE WITHOUT A COMMUTA-DRIVE WITHOUT A COMMUTA-DRIVE WITHOUT A COMMUTA-DRIVE WITHOUT A COMMUTA-DRIVE WITHOUT A COMMUTA-TION POWER SUPPLY.TION POWER SUPPLY.TION POWER SUPPLY.TION POWER SUPPLY.TION POWER SUPPLY.

5.35.35.35.35.3 COMM DRIVECOMM DRIVECOMM DRIVECOMM DRIVECOMM DRIVE is a red LED that pulses on andoff slowly at slow speeds. It pulses faster and appears

17

Bus Power LED Run Command LED Status and Diagnostic LEDs

TYPICAL 1703 SERIESControl Board

Commutation Commutation Power Conduction AdjustmentDrive LED Supply LED Drive LED Potentiometers

18

LD1 LD2 LD3 LD4 LD5 LD6 LD

7 LD8 LD9 LD10 LD11

P1 P

2 P3 P

4 P5 P

6 P

7 P

8 P9 P

10

OffsetGainMinimum SpeedMaximum SpeedMaximum Ext. Speed (opt)OverloadCurrent LimitI CompensationWalking FrequencyVolts/Hertz

Ready (yellow)At Speed (yellow)Run (green)Temperature (green)Fault (red)Overload Indicator (red)Overcurrent Indicator (red)Overvoltage Indicator (red)Undervoltage Indicator (red)Phase Loss Indicator (red)Ground Fault Indicator (red)

Dip Switches

CONTROL CHIP BOARDShowing Location of Dip Switches, Potentiometers and LEDs

19


INTERNAL INTERNAL INTERNAL INTERNAL INTERNAL ADJUSTMENTSADJUSTMENTSADJUSTMENTSADJUSTMENTSADJUSTMENTS

These calibration potentiometers are located on thecontrol chip board.

6.16.16.16.16.1 OFFSET AND GAINOFFSET AND GAINOFFSET AND GAINOFFSET AND GAINOFFSET AND GAINCustomer CalibrationCustomer CalibrationCustomer CalibrationCustomer CalibrationCustomer Calibration

The OFFSET and GAIN potentiometers are used tofine tune the customer’s automatic control speed ref-erence input with the drive when the REMOTE modeis selected. These adjustment potentiometers do notfunction in the LOCAL mode. See Section 8 for properstart-up and calibration procedures.

6.26.26.26.26.2 MINIMUM AND MAXIMUM SPEEDMINIMUM AND MAXIMUM SPEEDMINIMUM AND MAXIMUM SPEEDMINIMUM AND MAXIMUM SPEEDMINIMUM AND MAXIMUM SPEEDCustomer CalibrationCustomer CalibrationCustomer CalibrationCustomer CalibrationCustomer Calibration

The MIN SPEED and MAX SPEED calibration poten-tiometers are used to set the operating speed range inthe LOCAL and the REMOTE speed control modes.See Section 8 for proper start-up and calibration pro-cedures.

6.36.36.36.36.3 MAXIMUM EXTENDED SPEEDMAXIMUM EXTENDED SPEEDMAXIMUM EXTENDED SPEEDMAXIMUM EXTENDED SPEEDMAXIMUM EXTENDED SPEEDCustomer Calibration--Optional FeatureCustomer Calibration--Optional FeatureCustomer Calibration--Optional FeatureCustomer Calibration--Optional FeatureCustomer Calibration--Optional Feature

The MAX EXT SPEED potentiometer is used to cali-brate the maximum speed above 100% which you wishto operate at. This circuit is not functional unless theEXT SPD switch on switch SW2 is in the on positionand the drive is in the REMOTE mode. The extendedfrequency range is up to 120 Hz.

DANGER!OPERATING THE MOTOR AND ITSOPERATING THE MOTOR AND ITSOPERATING THE MOTOR AND ITSOPERATING THE MOTOR AND ITSOPERATING THE MOTOR AND ITSDRIVEN EQUIPMENT AT SPEEDSDRIVEN EQUIPMENT AT SPEEDSDRIVEN EQUIPMENT AT SPEEDSDRIVEN EQUIPMENT AT SPEEDSDRIVEN EQUIPMENT AT SPEEDSABOVE THE MOTOR NAMEPLATEABOVE THE MOTOR NAMEPLATEABOVE THE MOTOR NAMEPLATEABOVE THE MOTOR NAMEPLATEABOVE THE MOTOR NAMEPLATERPM CAN CAUSE DAMAGE TO THERPM CAN CAUSE DAMAGE TO THERPM CAN CAUSE DAMAGE TO THERPM CAN CAUSE DAMAGE TO THERPM CAN CAUSE DAMAGE TO THEDRIVEN EQUIPMENT OR THE AP-DRIVEN EQUIPMENT OR THE AP-DRIVEN EQUIPMENT OR THE AP-DRIVEN EQUIPMENT OR THE AP-DRIVEN EQUIPMENT OR THE AP-PLICATION RELATED COMPO-PLICATION RELATED COMPO-PLICATION RELATED COMPO-PLICATION RELATED COMPO-PLICATION RELATED COMPO-NENTS. DO NOT OPERATE IN THENENTS. DO NOT OPERATE IN THENENTS. DO NOT OPERATE IN THENENTS. DO NOT OPERATE IN THENENTS. DO NOT OPERATE IN THEEXTENDED SPEED MODE WITH-EXTENDED SPEED MODE WITH-EXTENDED SPEED MODE WITH-EXTENDED SPEED MODE WITH-EXTENDED SPEED MODE WITH-OUT PRIOR VERIFICATION THATOUT PRIOR VERIFICATION THATOUT PRIOR VERIFICATION THATOUT PRIOR VERIFICATION THATOUT PRIOR VERIFICATION THATYOUR SYSTEM AND EQUIPMENTYOUR SYSTEM AND EQUIPMENTYOUR SYSTEM AND EQUIPMENTYOUR SYSTEM AND EQUIPMENTYOUR SYSTEM AND EQUIPMENTCAN WITHSTAND THE ADDED CA-CAN WITHSTAND THE ADDED CA-CAN WITHSTAND THE ADDED CA-CAN WITHSTAND THE ADDED CA-CAN WITHSTAND THE ADDED CA-PACITY CAUSED BY INCREASINGPACITY CAUSED BY INCREASINGPACITY CAUSED BY INCREASINGPACITY CAUSED BY INCREASINGPACITY CAUSED BY INCREASINGTHE MOTOR RPM ABOVE BASETHE MOTOR RPM ABOVE BASETHE MOTOR RPM ABOVE BASETHE MOTOR RPM ABOVE BASETHE MOTOR RPM ABOVE BASESPEED.SPEED.SPEED.SPEED.SPEED.

6.46.46.46.46.4 OVERLOADOVERLOADOVERLOADOVERLOADOVERLOADFactory CalibrationFactory CalibrationFactory CalibrationFactory CalibrationFactory Calibration

The 1703 Series is designed to provide motor overloadprotection. The overload is factory set for 105% ofdrive’s rated output. This setting should not bechanged without factory authorization.

6.56.56.56.56.5 CURRENT LIMITCURRENT LIMITCURRENT LIMITCURRENT LIMITCURRENT LIMITFactory CalibrationFactory CalibrationFactory CalibrationFactory CalibrationFactory Calibration

Full CW rotation of this potentiometer calibrates thedrive for a maximum output current capacity of 110%of the drive’s nameplated output current. This adjust-ment can be utilized to calibrate the maximum driveoutput current clamp threshold to a lower setpointlevel. This setting should not be changed without fac-tory authorization.

WARNING!IF THE CURRENT LIMIT POTENTI-IF THE CURRENT LIMIT POTENTI-IF THE CURRENT LIMIT POTENTI-IF THE CURRENT LIMIT POTENTI-IF THE CURRENT LIMIT POTENTI-OMETER IS TO BE ADJUSTED TO AOMETER IS TO BE ADJUSTED TO AOMETER IS TO BE ADJUSTED TO AOMETER IS TO BE ADJUSTED TO AOMETER IS TO BE ADJUSTED TO ALOWER SETPOINT, THE OVER-LOWER SETPOINT, THE OVER-LOWER SETPOINT, THE OVER-LOWER SETPOINT, THE OVER-LOWER SETPOINT, THE OVER-LOAD POTENTIOMETER LOAD POTENTIOMETER LOAD POTENTIOMETER LOAD POTENTIOMETER LOAD POTENTIOMETER MUSTMUSTMUSTMUSTMUSTFIRSTFIRSTFIRSTFIRSTFIRST BE ADJUSTED TO A LOWER BE ADJUSTED TO A LOWER BE ADJUSTED TO A LOWER BE ADJUSTED TO A LOWER BE ADJUSTED TO A LOWERSETPOINT. FAILURE TO ADJUSTSETPOINT. FAILURE TO ADJUSTSETPOINT. FAILURE TO ADJUSTSETPOINT. FAILURE TO ADJUSTSETPOINT. FAILURE TO ADJUSTTHE OVERLOAD POTENTIOME-THE OVERLOAD POTENTIOME-THE OVERLOAD POTENTIOME-THE OVERLOAD POTENTIOME-THE OVERLOAD POTENTIOME-TER FIRST CAN DEFEAT THETER FIRST CAN DEFEAT THETER FIRST CAN DEFEAT THETER FIRST CAN DEFEAT THETER FIRST CAN DEFEAT THEOVERLOAD PROTECTION CIR-OVERLOAD PROTECTION CIR-OVERLOAD PROTECTION CIR-OVERLOAD PROTECTION CIR-OVERLOAD PROTECTION CIR-CUIT OF THE DRIVE.CUIT OF THE DRIVE.CUIT OF THE DRIVE.CUIT OF THE DRIVE.CUIT OF THE DRIVE.

6.66.66.66.66.6 I COMPI COMPI COMPI COMPI COMPFactory CalibrationFactory CalibrationFactory CalibrationFactory CalibrationFactory Calibration

The I COMP potentiometer is used to provide in-creased starting torque to initiate motor rotation on astart command. This circuit is not functional unlessthe HI-TORQUE switch on switch SW2 is in the ONposition. When this potentiometer is fully CW thedrive will deliver up to 125% motor torque for startingthe motor. This setting should not be changed withoutfactory authorization.

NOTE: THE HI-TORQUE SWITCHNOTE: THE HI-TORQUE SWITCHNOTE: THE HI-TORQUE SWITCHNOTE: THE HI-TORQUE SWITCHNOTE: THE HI-TORQUE SWITCHSHOULD BE IN THE OFF POSI-SHOULD BE IN THE OFF POSI-SHOULD BE IN THE OFF POSI-SHOULD BE IN THE OFF POSI-SHOULD BE IN THE OFF POSI-TION UNLESS THE MOTOR TION UNLESS THE MOTOR TION UNLESS THE MOTOR TION UNLESS THE MOTOR TION UNLESS THE MOTOR RE-RE-RE-RE-RE-QUIRESQUIRESQUIRESQUIRESQUIRES ADDITIONAL TORQUE ADDITIONAL TORQUE ADDITIONAL TORQUE ADDITIONAL TORQUE ADDITIONAL TORQUEFOR STARTING.FOR STARTING.FOR STARTING.FOR STARTING.FOR STARTING.

NOTE: IF THE HI-TORQUE CIR-NOTE: IF THE HI-TORQUE CIR-NOTE: IF THE HI-TORQUE CIR-NOTE: IF THE HI-TORQUE CIR-NOTE: IF THE HI-TORQUE CIR-CUIT IS REQUIRED, START YOURCUIT IS REQUIRED, START YOURCUIT IS REQUIRED, START YOURCUIT IS REQUIRED, START YOURCUIT IS REQUIRED, START YOURCALIBRATIONS WITH THE I COMPCALIBRATIONS WITH THE I COMPCALIBRATIONS WITH THE I COMPCALIBRATIONS WITH THE I COMPCALIBRATIONS WITH THE I COMPPOTENTIOMETER IN THE FULLYPOTENTIOMETER IN THE FULLYPOTENTIOMETER IN THE FULLYPOTENTIOMETER IN THE FULLYPOTENTIOMETER IN THE FULLYCCW POSITION AND ADJUST ITCCW POSITION AND ADJUST ITCCW POSITION AND ADJUST ITCCW POSITION AND ADJUST ITCCW POSITION AND ADJUST ITCW ONLY TO THE POINT WHENCW ONLY TO THE POINT WHENCW ONLY TO THE POINT WHENCW ONLY TO THE POINT WHENCW ONLY TO THE POINT WHENTHE MOTOR WILL START.THE MOTOR WILL START.THE MOTOR WILL START.THE MOTOR WILL START.THE MOTOR WILL START.

20

CAUTION!USE OF THE HI-TORQUE CIRCUITUSE OF THE HI-TORQUE CIRCUITUSE OF THE HI-TORQUE CIRCUITUSE OF THE HI-TORQUE CIRCUITUSE OF THE HI-TORQUE CIRCUITWHEN IT IS NOT REQUIRED ORWHEN IT IS NOT REQUIRED ORWHEN IT IS NOT REQUIRED ORWHEN IT IS NOT REQUIRED ORWHEN IT IS NOT REQUIRED OREXCESSIVE STARTING TORQUEEXCESSIVE STARTING TORQUEEXCESSIVE STARTING TORQUEEXCESSIVE STARTING TORQUEEXCESSIVE STARTING TORQUECAN CAUSE THE MOTOR TO RUNCAN CAUSE THE MOTOR TO RUNCAN CAUSE THE MOTOR TO RUNCAN CAUSE THE MOTOR TO RUNCAN CAUSE THE MOTOR TO RUNWARM, BE NOISY IN OPERATION,WARM, BE NOISY IN OPERATION,WARM, BE NOISY IN OPERATION,WARM, BE NOISY IN OPERATION,WARM, BE NOISY IN OPERATION,AND OPERATE AT REDUCED EF-AND OPERATE AT REDUCED EF-AND OPERATE AT REDUCED EF-AND OPERATE AT REDUCED EF-AND OPERATE AT REDUCED EF-FICIENCY.FICIENCY.FICIENCY.FICIENCY.FICIENCY.

CAUTION!THE I COMP AND WALKING FRE-THE I COMP AND WALKING FRE-THE I COMP AND WALKING FRE-THE I COMP AND WALKING FRE-THE I COMP AND WALKING FRE-QUENCY CIRCUITS ARE INTERAC-QUENCY CIRCUITS ARE INTERAC-QUENCY CIRCUITS ARE INTERAC-QUENCY CIRCUITS ARE INTERAC-QUENCY CIRCUITS ARE INTERAC-TIVE AND THEY FUNCTION AS OP-TIVE AND THEY FUNCTION AS OP-TIVE AND THEY FUNCTION AS OP-TIVE AND THEY FUNCTION AS OP-TIVE AND THEY FUNCTION AS OP-POSING CONTROLS.POSING CONTROLS.POSING CONTROLS.POSING CONTROLS.POSING CONTROLS.

Before the I Comp potentiometer is adjusted, theWALKING FREQUENCY potentiometer should beturned fully counter clockwise.

6.76.76.76.76.7 WALKING FREQUENCYWALKING FREQUENCYWALKING FREQUENCYWALKING FREQUENCYWALKING FREQUENCYFactory CalibrationFactory CalibrationFactory CalibrationFactory CalibrationFactory Calibration

Most centrifugal applications do not require hightorque for starting the motor. The WALKING FRE-QUENCY potentiometer is used to calibrate thedrive’s starting frequency and voltage.

CAUTION!EXCESSIVE CW ADJUSTMENT OFEXCESSIVE CW ADJUSTMENT OFEXCESSIVE CW ADJUSTMENT OFEXCESSIVE CW ADJUSTMENT OFEXCESSIVE CW ADJUSTMENT OFTHIS POTENTIOMETER CANTHIS POTENTIOMETER CANTHIS POTENTIOMETER CANTHIS POTENTIOMETER CANTHIS POTENTIOMETER CANCAUSE THE DRIVE TO NOT STARTCAUSE THE DRIVE TO NOT STARTCAUSE THE DRIVE TO NOT STARTCAUSE THE DRIVE TO NOT STARTCAUSE THE DRIVE TO NOT STARTWITH A START COMMAND, ORWITH A START COMMAND, ORWITH A START COMMAND, ORWITH A START COMMAND, ORWITH A START COMMAND, ORNOT TO REVERSE IF THE RE-NOT TO REVERSE IF THE RE-NOT TO REVERSE IF THE RE-NOT TO REVERSE IF THE RE-NOT TO REVERSE IF THE RE-VERSING CIRCUITS ARE ACTI-VERSING CIRCUITS ARE ACTI-VERSING CIRCUITS ARE ACTI-VERSING CIRCUITS ARE ACTI-VERSING CIRCUITS ARE ACTI-VATED.VATED.VATED.VATED.VATED.

6.86.86.86.86.8 V/HZ CALV/HZ CALV/HZ CALV/HZ CALV/HZ CALFactory CalibrationFactory CalibrationFactory CalibrationFactory CalibrationFactory Calibration

The VOLTS PER HERTZ CALIBRATION potenti-ometer, when installed, is used to provide precise cali-bration of the drive’s output V/Hz ratio.

CAUTION!IF THE V/HZ CAL POTENTIOME-IF THE V/HZ CAL POTENTIOME-IF THE V/HZ CAL POTENTIOME-IF THE V/HZ CAL POTENTIOME-IF THE V/HZ CAL POTENTIOME-TER IS INSTALLED, DO NOT AD-TER IS INSTALLED, DO NOT AD-TER IS INSTALLED, DO NOT AD-TER IS INSTALLED, DO NOT AD-TER IS INSTALLED, DO NOT AD-JUST IT. THIS IS A FACTORY CALI-JUST IT. THIS IS A FACTORY CALI-JUST IT. THIS IS A FACTORY CALI-JUST IT. THIS IS A FACTORY CALI-JUST IT. THIS IS A FACTORY CALI-BRATION. IMPROPER CALIBRA-BRATION. IMPROPER CALIBRA-BRATION. IMPROPER CALIBRA-BRATION. IMPROPER CALIBRA-BRATION. IMPROPER CALIBRA-TION OF THIS ADJUSTMENT CANTION OF THIS ADJUSTMENT CANTION OF THIS ADJUSTMENT CANTION OF THIS ADJUSTMENT CANTION OF THIS ADJUSTMENT CANCAUSE IMPROPER DRIVE OPERA-CAUSE IMPROPER DRIVE OPERA-CAUSE IMPROPER DRIVE OPERA-CAUSE IMPROPER DRIVE OPERA-CAUSE IMPROPER DRIVE OPERA-TION AND/OR MOTOR DAMAGE.TION AND/OR MOTOR DAMAGE.TION AND/OR MOTOR DAMAGE.TION AND/OR MOTOR DAMAGE.TION AND/OR MOTOR DAMAGE.

6.9 STANDARD CALIBRATION SETTINGS6.9 STANDARD CALIBRATION SETTINGS6.9 STANDARD CALIBRATION SETTINGS6.9 STANDARD CALIBRATION SETTINGS6.9 STANDARD CALIBRATION SETTINGS

Unless designated otherwise, the following calibration setpoints are typical for these applications.

PotentiometerPotentiometerPotentiometerPotentiometerPotentiometer Centrifugal FanCentrifugal FanCentrifugal FanCentrifugal FanCentrifugal Fan Centrifugal PumpCentrifugal PumpCentrifugal PumpCentrifugal PumpCentrifugal Pump

OFFSET minimum speed (as set by minimum speed pot)

GAIN 100% with maximum remote signal

MIN SPEED 10% (Fully CCW) if controlled by EMS circuit min30% if drive sets min setpoint 35% if drive sets min setpoint

MAX SPEED 100%

MAX EXT SPEED 0% (Fully CCW)

OVERLOAD 105% of output rating

CURRENT LIMIT 110% of output rating

I COMP 0% (Fully CCW)

WALKING FREQ Factory set

V/HZ CAL Factory set

21

TYPICAL 1703 SERIESControl Chip Board

DIP SwitchesConductionDrive LED

50 Pin Connectorand Cable

AdjustmentPotentiometers

Run CommandLED

DiagnosticLEDs

22

The following calibration potentiometers are locatedon the display board. The display board is mounted onthe inside of the door, directly behind the operator'scontrol panel. These multi-turn potentiometers areon the side of the display board closest to the door, butthey can be accessed from the bottom of the displayboard.

6.106.106.106.106.10 P1, P2, P3 and P4P1, P2, P3 and P4P1, P2, P3 and P4P1, P2, P3 and P4P1, P2, P3 and P4These potentiometers are for adjusting the outputspeed and load signals. The 0 to 10 V DC speed signalis available at terminal 4TB4-1 and 4TB4-2 of mostdrives (see Section 2.14). The load signal is not stan-dard, and only provided when ordered. Refer to thespecific customer connection diagram if this outputsignal was ordered. P1 will set the speed signal gain(value at maximum speed); P2 the speed signal offset

(value at minimum speed); P3 the output load offset(value at minimum load); and P4 the output load gain(value at maximum load.6.116.116.116.116.11 P5, P6 and P7P5, P6 and P7P5, P6 and P7P5, P6 and P7P5, P6 and P7These potentiometers are for calibrating the digitalmeter in the operator’s control panel. They are fac-tory set and should need no further adjustment. P5will set the maximum reading for output volts; P6 willset the maximum reading for % speed; and P7 will setthe maximum reading for % load.

P7 M

ete

r Loa

d C

al

P6 M

ete

r S

peed C

al

P5 M

ete

r O

utp

ut V

olts

Cal

P4 O

utp

ut Load G

ain

P3 O

utp

ut Load O

ffse

t

P2 O

ut p

ut S

peed O

ffse

t

P1 O

utp

ut S

peed G

ain

The Display Board mounts to inside of door behind display.The potentiometers are mounted towards the door, but can be accessed from the bottom of the board.

23


INTERNAL SWITCHESINTERNAL SWITCHESINTERNAL SWITCHESINTERNAL SWITCHESINTERNAL SWITCHES

There are three sets of DIP switches, each consistingof eight individual switches, located on the controlchip board. They are used to set the operational char-acteristics of the drive for your specific applicationand should not require resetting unless the applica-tion or system requirements change. The switcheshave two positions:

ONONONONON - toward the outside edge (top) of the circuitboardOFFOFFOFFOFFOFF - toward the center of the circuit board

NOTE: NOTE: NOTE: NOTE: NOTE: A drive may have either rocker switches orslide switches. For drives with slide switches, slide theraised portion of the switch in the desired direction. Fordrives with rocker switches, press in on the rockerswitch at the desired side.

CAUTION!DO NOT ALTER ANY SWITCH SET-DO NOT ALTER ANY SWITCH SET-DO NOT ALTER ANY SWITCH SET-DO NOT ALTER ANY SWITCH SET-DO NOT ALTER ANY SWITCH SET-TINGS WITHOUT A CLEAR UN-TINGS WITHOUT A CLEAR UN-TINGS WITHOUT A CLEAR UN-TINGS WITHOUT A CLEAR UN-TINGS WITHOUT A CLEAR UN-DERSTANDING OF THE SWITCH’SDERSTANDING OF THE SWITCH’SDERSTANDING OF THE SWITCH’SDERSTANDING OF THE SWITCH’SDERSTANDING OF THE SWITCH’SFUNCTION AND A REQUIREMENTFUNCTION AND A REQUIREMENTFUNCTION AND A REQUIREMENTFUNCTION AND A REQUIREMENTFUNCTION AND A REQUIREMENTIN YOUR APPLICATION FOR THATIN YOUR APPLICATION FOR THATIN YOUR APPLICATION FOR THATIN YOUR APPLICATION FOR THATIN YOUR APPLICATION FOR THATFUNCTION. IMPROPER SWITCHFUNCTION. IMPROPER SWITCHFUNCTION. IMPROPER SWITCHFUNCTION. IMPROPER SWITCHFUNCTION. IMPROPER SWITCHSETTINGS CAN CAUSE IMPROPERSETTINGS CAN CAUSE IMPROPERSETTINGS CAN CAUSE IMPROPERSETTINGS CAN CAUSE IMPROPERSETTINGS CAN CAUSE IMPROPEROPERATION AND CAN DAMAGEOPERATION AND CAN DAMAGEOPERATION AND CAN DAMAGEOPERATION AND CAN DAMAGEOPERATION AND CAN DAMAGEEQUIPMENT. DO NOT OPERATEEQUIPMENT. DO NOT OPERATEEQUIPMENT. DO NOT OPERATEEQUIPMENT. DO NOT OPERATEEQUIPMENT. DO NOT OPERATETHE DIP SWITCHES WHILE THETHE DIP SWITCHES WHILE THETHE DIP SWITCHES WHILE THETHE DIP SWITCHES WHILE THETHE DIP SWITCHES WHILE THEDRIVE IS RUNNING.DRIVE IS RUNNING.DRIVE IS RUNNING.DRIVE IS RUNNING.DRIVE IS RUNNING.

7.1 SWITCH SW17.1 SWITCH SW17.1 SWITCH SW17.1 SWITCH SW17.1 SWITCH SW1

7.1.17.1.17.1.17.1.17.1.1. A0, A1, A0, A1, A0, A1, A0, A1, A0, A1, and A2 A2 A2 A2 A2 are used to set the ac-celeration time of the drive. Set the switch posi-tions as shown to select the acceleration timemost suitable for your system and application.

A0A0A0A0A0 A1A1A1A1A1 A2A2A2A2A2 FULL RANGEFULL RANGEFULL RANGEFULL RANGEFULL RANGEACCEL TIMEACCEL TIMEACCEL TIMEACCEL TIMEACCEL TIME

ON ON ON 3 sec

OFF ON ON 6 sec

ON OFF ON 10 sec

OFF OFF ON 20 sec

ON ON OFF 40 sec

OFF ON OFF 70 sec

ON OFF OFF 140 sec

OFF OFF OFF 280 sec

7.1.27.1.27.1.27.1.27.1.2 D0, D1, D0, D1, D0, D1, D0, D1, D0, D1, and D2 D2 D2 D2 D2 are used to set the de-celeration time of the drive:

D0D0D0D0D0 D1D1D1D1D1 D2D2D2D2D2 FULL RANGEFULL RANGEFULL RANGEFULL RANGEFULL RANGEDECEL TIMEDECEL TIMEDECEL TIMEDECEL TIMEDECEL TIME

ON ON ON 3 sec

OFF ON ON 6 sec

ON OFF ON 10 sec

OFF OFF ON 20 sec

ON ON OFF 40 sec

OFF ON OFF 70 sec

ON OFF OFF 140 sec

OFF OFF OFF 280 sec

7.1.37.1.37.1.37.1.37.1.3 FCR - FCR - FCR - FCR - FCR - The FAULT COUNTER RE- FAULT COUNTER RE- FAULT COUNTER RE- FAULT COUNTER RE- FAULT COUNTER RE-SETSETSETSETSET switch is used to select unlimited auto-matic fault resets in the on position. In the offposition, the drive will attempt seven automaticresets and will lock and hold the fault on theeighth trip until it is manually cleared.

NOTE:NOTE:NOTE:NOTE:NOTE: THE EIGHT FAULT TRIPS THE EIGHT FAULT TRIPS THE EIGHT FAULT TRIPS THE EIGHT FAULT TRIPS THE EIGHT FAULT TRIPSCOUNTED IN THE LIMITED AUTO-COUNTED IN THE LIMITED AUTO-COUNTED IN THE LIMITED AUTO-COUNTED IN THE LIMITED AUTO-COUNTED IN THE LIMITED AUTO-MATIC FAULT RESET MODE CANMATIC FAULT RESET MODE CANMATIC FAULT RESET MODE CANMATIC FAULT RESET MODE CANMATIC FAULT RESET MODE CANBE FOR DIFFERENT FAULTS.BE FOR DIFFERENT FAULTS.BE FOR DIFFERENT FAULTS.BE FOR DIFFERENT FAULTS.BE FOR DIFFERENT FAULTS.

NOTE:NOTE:NOTE:NOTE:NOTE: THE SWITCHES OF SW2 THE SWITCHES OF SW2 THE SWITCHES OF SW2 THE SWITCHES OF SW2 THE SWITCHES OF SW2CAN BE SET TO LOCK OUT ANY OFCAN BE SET TO LOCK OUT ANY OFCAN BE SET TO LOCK OUT ANY OFCAN BE SET TO LOCK OUT ANY OFCAN BE SET TO LOCK OUT ANY OFTHE INDIVIDUAL FAULT CIRCUITTHE INDIVIDUAL FAULT CIRCUITTHE INDIVIDUAL FAULT CIRCUITTHE INDIVIDUAL FAULT CIRCUITTHE INDIVIDUAL FAULT CIRCUITRESETS. IF NONE OF THE FAULTRESETS. IF NONE OF THE FAULTRESETS. IF NONE OF THE FAULTRESETS. IF NONE OF THE FAULTRESETS. IF NONE OF THE FAULTRESET SWITCHES OF SW2 ARE ON,RESET SWITCHES OF SW2 ARE ON,RESET SWITCHES OF SW2 ARE ON,RESET SWITCHES OF SW2 ARE ON,RESET SWITCHES OF SW2 ARE ON,THE AUTOMATIC FAULT RESETTHE AUTOMATIC FAULT RESETTHE AUTOMATIC FAULT RESETTHE AUTOMATIC FAULT RESETTHE AUTOMATIC FAULT RESETFEATURE OF THE DRIVE IS DE-FEATURE OF THE DRIVE IS DE-FEATURE OF THE DRIVE IS DE-FEATURE OF THE DRIVE IS DE-FEATURE OF THE DRIVE IS DE-FEATED.FEATED.FEATED.FEATED.FEATED.

7.1.47.1.47.1.47.1.47.1.4 OL - OL - OL - OL - OL - The VARIABLE OVERLOAD VARIABLE OVERLOAD VARIABLE OVERLOAD VARIABLE OVERLOAD VARIABLE OVERLOADswitch allows the overload trip curve to be tai-lored to the application.

ONONONONON - Variable overload curve for cen-trifugal and lightly loaded applications.The OL trip curve is 100% current at fullspeed and approximately 60% current atzero speed.

OFFOFFOFFOFFOFF - Constant torque loads may re-quire more current, so the OL trip inthis mode is 100% current at all speeds.


7.2.17.2.17.2.17.2.17.2.1 EXTR - EXTR - EXTR - EXTR - EXTR - The EXTERNAL FAULT RE- EXTERNAL FAULT RE- EXTERNAL FAULT RE- EXTERNAL FAULT RE- EXTERNAL FAULT RE-SETSETSETSETSET is associated with the GROUND FAULT

24

protection circuits. In the on position, groundfault trips will be automatically reset. Thisfunction is for use by factory personnel utilizingspecial testing procedures. This switch must beoff! In this position, power to the drive must becycled to reset the fault.

DO NOT SELECT THE ON POSI-DO NOT SELECT THE ON POSI-DO NOT SELECT THE ON POSI-DO NOT SELECT THE ON POSI-DO NOT SELECT THE ON POSI-TION OF THE EXTR SWITCH. DAM-TION OF THE EXTR SWITCH. DAM-TION OF THE EXTR SWITCH. DAM-TION OF THE EXTR SWITCH. DAM-TION OF THE EXTR SWITCH. DAM-AGE CAN OCCUR TO THE DRIVEAGE CAN OCCUR TO THE DRIVEAGE CAN OCCUR TO THE DRIVEAGE CAN OCCUR TO THE DRIVEAGE CAN OCCUR TO THE DRIVEAND/OR THE MOTOR IF AAND/OR THE MOTOR IF AAND/OR THE MOTOR IF AAND/OR THE MOTOR IF AAND/OR THE MOTOR IF AGROUND FAULT PROBLEM EX-GROUND FAULT PROBLEM EX-GROUND FAULT PROBLEM EX-GROUND FAULT PROBLEM EX-GROUND FAULT PROBLEM EX-ISTS AND THE CIRCUIT IS AUTO-ISTS AND THE CIRCUIT IS AUTO-ISTS AND THE CIRCUIT IS AUTO-ISTS AND THE CIRCUIT IS AUTO-ISTS AND THE CIRCUIT IS AUTO-MATICALLY RESETTING AND RE-MATICALLY RESETTING AND RE-MATICALLY RESETTING AND RE-MATICALLY RESETTING AND RE-MATICALLY RESETTING AND RE-STARTING WITH THIS CONDI-STARTING WITH THIS CONDI-STARTING WITH THIS CONDI-STARTING WITH THIS CONDI-STARTING WITH THIS CONDI-TION.TION.TION.TION.TION.

7.2.27.2.27.2.27.2.27.2.2 OVR - OVR - OVR - OVR - OVR - The OVERVOLTAGE RESET OVERVOLTAGE RESET OVERVOLTAGE RESET OVERVOLTAGE RESET OVERVOLTAGE RESETswitch selects whether the OV fault trip is auto-matically reset (on position) or manually reset(off position) by cycling power or by using theoptional front panel FAULT reset switch. Toprevent nuisance fault trips, this switch shouldalways be on, allowing automatic reset. SeeSection 4.12.

7.2.37.2.37.2.37.2.37.2.3 UVR - UVR - UVR - UVR - UVR - The UNDERVOLTAGE RE- UNDERVOLTAGE RE- UNDERVOLTAGE RE- UNDERVOLTAGE RE- UNDERVOLTAGE RE-SETSETSETSETSET switch selects whether the UV fault trip isautomatically reset (on position) or manuallyreset (off position) by cycling power or by usingthe front panel FAULT reset switch. See Sec-tion 4.11.

7.2.47.2.47.2.47.2.47.2.4 OCR - OCR - OCR - OCR - OCR - The OVERCURRENT RESET OVERCURRENT RESET OVERCURRENT RESET OVERCURRENT RESET OVERCURRENT RESETswitch selects whether the OC fault trip is auto-matically reset (on position) or manually reset(off position) using the optional front panelFAULT reset switch. See Section 4.10.

7.2.57.2.57.2.57.2.57.2.5 PLR - PLR - PLR - PLR - PLR - The PHASE LOSS RESET PHASE LOSS RESET PHASE LOSS RESET PHASE LOSS RESET PHASE LOSS RESETswitch selects whether the PL fault trip is auto-matically reset (on position) or manually reset(off position) by cycling power or by using theoptional front panel FAULT reset switch. SeeSection 4.8.

7.2.67.2.67.2.67.2.67.2.6 HI-TORQUEHI-TORQUEHI-TORQUEHI-TORQUEHI-TORQUE - The amount of motorstarting torque available from the drive is se-lectable using this switch.

ONONONONON - Maximum torque is available forstarting the motor.

OFFOFFOFFOFFOFF - Up to 80% of the drive’s ratedtorque is available for starting the motor.

NOTE:NOTE:NOTE:NOTE:NOTE: THIS SWITCH SHOULD BE THIS SWITCH SHOULD BE THIS SWITCH SHOULD BE THIS SWITCH SHOULD BE THIS SWITCH SHOULD BEIN THE OFF POSITION UNLESSIN THE OFF POSITION UNLESSIN THE OFF POSITION UNLESSIN THE OFF POSITION UNLESSIN THE OFF POSITION UNLESSYOUR APPLICATION REQUIRESYOUR APPLICATION REQUIRESYOUR APPLICATION REQUIRESYOUR APPLICATION REQUIRESYOUR APPLICATION REQUIRESADDITIONAL STARTING TORQUE.ADDITIONAL STARTING TORQUE.ADDITIONAL STARTING TORQUE.ADDITIONAL STARTING TORQUE.ADDITIONAL STARTING TORQUE.SEE SECTION 6.6 FOR CALIBRA-SEE SECTION 6.6 FOR CALIBRA-SEE SECTION 6.6 FOR CALIBRA-SEE SECTION 6.6 FOR CALIBRA-SEE SECTION 6.6 FOR CALIBRA-TION.TION.TION.TION.TION.

7.2.77.2.77.2.77.2.77.2.7 EXT SPD - The EXTENDED SPEEDEXT SPD - The EXTENDED SPEEDEXT SPD - The EXTENDED SPEEDEXT SPD - The EXTENDED SPEEDEXT SPD - The EXTENDED SPEEDswitch, used with the optional extended speedpotentiometer, determines the maximum out-put frequency the drive is capable of achieving.

ONONONONON - Frequency calibration up to 120 Hz(constant HP mode available above 60Hz) in the REMOTE mode only. The ex-tended speed circuit will not function inthe LOCAL mode from the controlpanel.

OFFOFFOFFOFFOFF - Frequency calibration up to 60 Hz(normally calibrated for 60 Hz operationunless otherwise specified).

NOTE:NOTE:NOTE:NOTE:NOTE: THE MAX SPEED POTEN- THE MAX SPEED POTEN- THE MAX SPEED POTEN- THE MAX SPEED POTEN- THE MAX SPEED POTEN-TIOMETER (SECTION 6.1) SHOULDTIOMETER (SECTION 6.1) SHOULDTIOMETER (SECTION 6.1) SHOULDTIOMETER (SECTION 6.1) SHOULDTIOMETER (SECTION 6.1) SHOULDBE SET FOR 100% SPEED (60 HZ)BE SET FOR 100% SPEED (60 HZ)BE SET FOR 100% SPEED (60 HZ)BE SET FOR 100% SPEED (60 HZ)BE SET FOR 100% SPEED (60 HZ)WHEN A FULL SPEED COMMANDWHEN A FULL SPEED COMMANDWHEN A FULL SPEED COMMANDWHEN A FULL SPEED COMMANDWHEN A FULL SPEED COMMANDIS GIVEN BEFORE ACTIVATINGIS GIVEN BEFORE ACTIVATINGIS GIVEN BEFORE ACTIVATINGIS GIVEN BEFORE ACTIVATINGIS GIVEN BEFORE ACTIVATINGTHE EXT SPD SWITCH TOTHE EXT SPD SWITCH TOTHE EXT SPD SWITCH TOTHE EXT SPD SWITCH TOTHE EXT SPD SWITCH TOACHIEVE SPEEDS HIGHER THANACHIEVE SPEEDS HIGHER THANACHIEVE SPEEDS HIGHER THANACHIEVE SPEEDS HIGHER THANACHIEVE SPEEDS HIGHER THAN60 HZ. SEE SECTION 6.3.60 HZ. SEE SECTION 6.3.60 HZ. SEE SECTION 6.3.60 HZ. SEE SECTION 6.3.60 HZ. SEE SECTION 6.3.

OPERATING THE MOTOR AND ITSOPERATING THE MOTOR AND ITSOPERATING THE MOTOR AND ITSOPERATING THE MOTOR AND ITSOPERATING THE MOTOR AND ITSDRIVEN APPLICATION ATDRIVEN APPLICATION ATDRIVEN APPLICATION ATDRIVEN APPLICATION ATDRIVEN APPLICATION ATSPEEDS ABOVE THE MOTORSPEEDS ABOVE THE MOTORSPEEDS ABOVE THE MOTORSPEEDS ABOVE THE MOTORSPEEDS ABOVE THE MOTORNAMEPLATE RPM CAN CAUSENAMEPLATE RPM CAN CAUSENAMEPLATE RPM CAN CAUSENAMEPLATE RPM CAN CAUSENAMEPLATE RPM CAN CAUSEDAMAGE TO THE DRIVEN EQUIP-DAMAGE TO THE DRIVEN EQUIP-DAMAGE TO THE DRIVEN EQUIP-DAMAGE TO THE DRIVEN EQUIP-DAMAGE TO THE DRIVEN EQUIP-MENT OR THE APPLICATION RE-MENT OR THE APPLICATION RE-MENT OR THE APPLICATION RE-MENT OR THE APPLICATION RE-MENT OR THE APPLICATION RE-LATED COMPONENTS. DO NOTLATED COMPONENTS. DO NOTLATED COMPONENTS. DO NOTLATED COMPONENTS. DO NOTLATED COMPONENTS. DO NOTOPERATE IN THE EXT SPD MODEOPERATE IN THE EXT SPD MODEOPERATE IN THE EXT SPD MODEOPERATE IN THE EXT SPD MODEOPERATE IN THE EXT SPD MODEWITHOUT PRIOR VERIFICATIONWITHOUT PRIOR VERIFICATIONWITHOUT PRIOR VERIFICATIONWITHOUT PRIOR VERIFICATIONWITHOUT PRIOR VERIFICATIONTHAT YOUR SYSTEM AND EQUIP-THAT YOUR SYSTEM AND EQUIP-THAT YOUR SYSTEM AND EQUIP-THAT YOUR SYSTEM AND EQUIP-THAT YOUR SYSTEM AND EQUIP-MENT CAN WITHSTAND THEMENT CAN WITHSTAND THEMENT CAN WITHSTAND THEMENT CAN WITHSTAND THEMENT CAN WITHSTAND THEADDED CAPACITY CAUSED BY IN-ADDED CAPACITY CAUSED BY IN-ADDED CAPACITY CAUSED BY IN-ADDED CAPACITY CAUSED BY IN-ADDED CAPACITY CAUSED BY IN-CREASING THE MOTOR RPMCREASING THE MOTOR RPMCREASING THE MOTOR RPMCREASING THE MOTOR RPMCREASING THE MOTOR RPMABOVE BASE SPEED.ABOVE BASE SPEED.ABOVE BASE SPEED.ABOVE BASE SPEED.ABOVE BASE SPEED.

7.2.87.2.87.2.87.2.87.2.8 4-20 mA4-20 mA4-20 mA4-20 mA4-20 mA - This switch selects the typeof input speed reference signal to be followed(DC voltage or current). See Sections 3.1.2, 6.1,and 6.2.

ONONONONON - Current input signals betweenzero and 40 mA can be tracked (typically4 to 20 mA).

25

delivered to the motor. Use of these switchesand the 60 HZ switch determine the V/Hz ratioto be delivered to the motor. The voltage on themotor nameplate is used to determine this set-ting.

NOTE:NOTE:NOTE:NOTE:NOTE: THE UTILITY POWER THE UTILITY POWER THE UTILITY POWER THE UTILITY POWER THE UTILITY POWERVOLTAGE BEING SUPPLIED TOVOLTAGE BEING SUPPLIED TOVOLTAGE BEING SUPPLIED TOVOLTAGE BEING SUPPLIED TOVOLTAGE BEING SUPPLIED TOTHE DRIVE DOES NOT DETER-THE DRIVE DOES NOT DETER-THE DRIVE DOES NOT DETER-THE DRIVE DOES NOT DETER-THE DRIVE DOES NOT DETER-MINE THE SWITCH SETTINGS.MINE THE SWITCH SETTINGS.MINE THE SWITCH SETTINGS.MINE THE SWITCH SETTINGS.MINE THE SWITCH SETTINGS.(SEE SECTION 2.1).(SEE SECTION 2.1).(SEE SECTION 2.1).(SEE SECTION 2.1).(SEE SECTION 2.1).

Output Voltage VoltageDesired Switches ON

200/208 V AC 208 only230 V AC 230 only380 V AC 380 only415 V AC 415 only460 V AC None575 V AC 575 only

NOTE:NOTE:NOTE:NOTE:NOTE: ONLY ONE VOLTAGE ONLY ONE VOLTAGE ONLY ONE VOLTAGE ONLY ONE VOLTAGE ONLY ONE VOLTAGESWITCH SHOULD BE ON AT ANYSWITCH SHOULD BE ON AT ANYSWITCH SHOULD BE ON AT ANYSWITCH SHOULD BE ON AT ANYSWITCH SHOULD BE ON AT ANYTIME.TIME.TIME.TIME.TIME.

WARNING!DO NOT SELECT AN OUTPUTDO NOT SELECT AN OUTPUTDO NOT SELECT AN OUTPUTDO NOT SELECT AN OUTPUTDO NOT SELECT AN OUTPUTVOLTAGE HIGHER THAN THEVOLTAGE HIGHER THAN THEVOLTAGE HIGHER THAN THEVOLTAGE HIGHER THAN THEVOLTAGE HIGHER THAN THEUTILITY POWER VOLTAGE. IF AUTILITY POWER VOLTAGE. IF AUTILITY POWER VOLTAGE. IF AUTILITY POWER VOLTAGE. IF AUTILITY POWER VOLTAGE. IF ABYPASS CIRCUIT IS SUPPLIED,BYPASS CIRCUIT IS SUPPLIED,BYPASS CIRCUIT IS SUPPLIED,BYPASS CIRCUIT IS SUPPLIED,BYPASS CIRCUIT IS SUPPLIED,THE DRIVE OUTPUT VOLTAGETHE DRIVE OUTPUT VOLTAGETHE DRIVE OUTPUT VOLTAGETHE DRIVE OUTPUT VOLTAGETHE DRIVE OUTPUT VOLTAGEAND THE UTILITY POWER VOLT-AND THE UTILITY POWER VOLT-AND THE UTILITY POWER VOLT-AND THE UTILITY POWER VOLT-AND THE UTILITY POWER VOLT-AGE AGE AGE AGE AGE MUST BE THE SAMEMUST BE THE SAMEMUST BE THE SAMEMUST BE THE SAMEMUST BE THE SAME.

DO NOT SELECT A VOLTAGE SET-DO NOT SELECT A VOLTAGE SET-DO NOT SELECT A VOLTAGE SET-DO NOT SELECT A VOLTAGE SET-DO NOT SELECT A VOLTAGE SET-TING DIFFERENT THAN THE MO-TING DIFFERENT THAN THE MO-TING DIFFERENT THAN THE MO-TING DIFFERENT THAN THE MO-TING DIFFERENT THAN THE MO-TOR NAMEPLATE VOLTAGE.TOR NAMEPLATE VOLTAGE.TOR NAMEPLATE VOLTAGE.TOR NAMEPLATE VOLTAGE.TOR NAMEPLATE VOLTAGE.

DRIVES ORDERED FOR 460 V ACDRIVES ORDERED FOR 460 V ACDRIVES ORDERED FOR 460 V ACDRIVES ORDERED FOR 460 V ACDRIVES ORDERED FOR 460 V ACOPERATION OR LESS ARE NOTOPERATION OR LESS ARE NOTOPERATION OR LESS ARE NOTOPERATION OR LESS ARE NOTOPERATION OR LESS ARE NOTRATED FOR 575 V AC OPERATION.RATED FOR 575 V AC OPERATION.RATED FOR 575 V AC OPERATION.RATED FOR 575 V AC OPERATION.RATED FOR 575 V AC OPERATION.DO NOT SWITCH THE 575 SWITCHDO NOT SWITCH THE 575 SWITCHDO NOT SWITCH THE 575 SWITCHDO NOT SWITCH THE 575 SWITCHDO NOT SWITCH THE 575 SWITCHON UNLESS THE DRIVE NAME-ON UNLESS THE DRIVE NAME-ON UNLESS THE DRIVE NAME-ON UNLESS THE DRIVE NAME-ON UNLESS THE DRIVE NAME-PLATE DESIGNATES THE DRIVEPLATE DESIGNATES THE DRIVEPLATE DESIGNATES THE DRIVEPLATE DESIGNATES THE DRIVEPLATE DESIGNATES THE DRIVEAS BEING DESIGNED FOR 575 V ACAS BEING DESIGNED FOR 575 V ACAS BEING DESIGNED FOR 575 V ACAS BEING DESIGNED FOR 575 V ACAS BEING DESIGNED FOR 575 V ACOPERATION. THE MODEL NUM-OPERATION. THE MODEL NUM-OPERATION. THE MODEL NUM-OPERATION. THE MODEL NUM-OPERATION. THE MODEL NUM-BER SUFFIX OF 1703AFC DRIVESBER SUFFIX OF 1703AFC DRIVESBER SUFFIX OF 1703AFC DRIVESBER SUFFIX OF 1703AFC DRIVESBER SUFFIX OF 1703AFC DRIVESDESIGNED FOR 575 V AC IS “J”.DESIGNED FOR 575 V AC IS “J”.DESIGNED FOR 575 V AC IS “J”.DESIGNED FOR 575 V AC IS “J”.DESIGNED FOR 575 V AC IS “J”.

SELECTION OF THE OUTPUTSELECTION OF THE OUTPUTSELECTION OF THE OUTPUTSELECTION OF THE OUTPUTSELECTION OF THE OUTPUTVOLTAGE USING THE VOLTAGEVOLTAGE USING THE VOLTAGEVOLTAGE USING THE VOLTAGEVOLTAGE USING THE VOLTAGEVOLTAGE USING THE VOLTAGESWITCHES SWITCHES SWITCHES SWITCHES SWITCHES DOESDOESDOESDOESDOES NOTNOTNOTNOTNOT CHANGECHANGECHANGECHANGECHANGETHE INPUT VOLTAGE DESIGN OFTHE INPUT VOLTAGE DESIGN OFTHE INPUT VOLTAGE DESIGN OFTHE INPUT VOLTAGE DESIGN OFTHE INPUT VOLTAGE DESIGN OFTHE DRIVE. SEE SECTION 2.1THE DRIVE. SEE SECTION 2.1THE DRIVE. SEE SECTION 2.1THE DRIVE. SEE SECTION 2.1THE DRIVE. SEE SECTION 2.1.

OFFOFFOFFOFFOFF - Voltage input signals betweenzero and +40 V DC can be tracked (0 to+10 V DC is typically used).


7.3.17.3.17.3.17.3.17.3.1 COASTCOASTCOASTCOASTCOAST - Selectable deceleration modefor stop commands.

ONONONONON - The power to the DC bus is re-moved immediately when a stop com-mand is given. This causes the motor todecelerate rapidly at a rate controlled bythe inertia of the load. Do not use thissetting for normal operation.

OFFOFFOFFOFFOFF - The motor will be driven to a stopat the deceleration rate determined bySW1 switches D0, D1, and D2. See Sec-tion 7.1.2.

7.3.27.3.27.3.27.3.27.3.2 REVERSEREVERSEREVERSEREVERSEREVERSE - The direction of motor ro-tation is determined by the position of thisswitch. See Section 4.5.

ONONONONON - the REV LCD on the front panel isilluminated and the motor rotation is op-posite of the normal directional rotation.

OFFOFFOFFOFFOFF - The motor rotation is as the wiresare connected to the drive output (for-ward).

WARNING!FOR ONE DIRECTION APPLICA-FOR ONE DIRECTION APPLICA-FOR ONE DIRECTION APPLICA-FOR ONE DIRECTION APPLICA-FOR ONE DIRECTION APPLICA-TIONS, CUSTOMER WIRINGTIONS, CUSTOMER WIRINGTIONS, CUSTOMER WIRINGTIONS, CUSTOMER WIRINGTIONS, CUSTOMER WIRINGSHOULD BE CORRECTED ATSHOULD BE CORRECTED ATSHOULD BE CORRECTED ATSHOULD BE CORRECTED ATSHOULD BE CORRECTED ATSTART-UP IF THE ROTATION IS IN-START-UP IF THE ROTATION IS IN-START-UP IF THE ROTATION IS IN-START-UP IF THE ROTATION IS IN-START-UP IF THE ROTATION IS IN-CORRECT. USING THE REVERSECORRECT. USING THE REVERSECORRECT. USING THE REVERSECORRECT. USING THE REVERSECORRECT. USING THE REVERSESWITCH CAUSES OPERATIONALSWITCH CAUSES OPERATIONALSWITCH CAUSES OPERATIONALSWITCH CAUSES OPERATIONALSWITCH CAUSES OPERATIONALCONFUSION AND COULD DAMAGECONFUSION AND COULD DAMAGECONFUSION AND COULD DAMAGECONFUSION AND COULD DAMAGECONFUSION AND COULD DAMAGEDRIVEN EQUIPMENT IF IMPROP-DRIVEN EQUIPMENT IF IMPROP-DRIVEN EQUIPMENT IF IMPROP-DRIVEN EQUIPMENT IF IMPROP-DRIVEN EQUIPMENT IF IMPROP-ERLY USED.ERLY USED.ERLY USED.ERLY USED.ERLY USED.

7.3.37.3.37.3.37.3.37.3.3 60 HZ60 HZ60 HZ60 HZ60 HZ - The output frequency of thedrive to be delivered to the motor at full speed isdetermined by the 60 HERTZ switch. The speedis calibrated by the MIN SPEED and MAXSPEED potentiometers (see Section 6.1), butthe frequency (Hz) of the V/Hz ratio is set bythis switch

ONONONONON - 60 HertzOFFOFFOFFOFFOFF - 50 Hertz

7.3.47.3.47.3.47.3.47.3.4 OUTPUT VOLTAGESOUTPUT VOLTAGESOUTPUT VOLTAGESOUTPUT VOLTAGESOUTPUT VOLTAGES - The switcheson SW3 labeled 208, 230, 380, 415, and 575 areused to determine the maximum voltage to be

26

7.4 STANDARD SWITCH7.4 STANDARD SWITCH7.4 STANDARD SWITCH7.4 STANDARD SWITCH7.4 STANDARD SWITCHCONFIGURATIONCONFIGURATIONCONFIGURATIONCONFIGURATIONCONFIGURATION

Unless designated otherwise, the following switch set-tings are standard for typical application requests for460 V AC operation using a 4 to 20 mA signal for re-mote speed tracking control.

NOTE: INDIVIDUAL APPLICA-NOTE: INDIVIDUAL APPLICA-NOTE: INDIVIDUAL APPLICA-NOTE: INDIVIDUAL APPLICA-NOTE: INDIVIDUAL APPLICA-TIONS, UTILITY VOLTAGES, MO-TIONS, UTILITY VOLTAGES, MO-TIONS, UTILITY VOLTAGES, MO-TIONS, UTILITY VOLTAGES, MO-TIONS, UTILITY VOLTAGES, MO-TOR SELECTION, AND CONTROLTOR SELECTION, AND CONTROLTOR SELECTION, AND CONTROLTOR SELECTION, AND CONTROLTOR SELECTION, AND CONTROLSYSTEMS WILL CAUSE VARI-SYSTEMS WILL CAUSE VARI-SYSTEMS WILL CAUSE VARI-SYSTEMS WILL CAUSE VARI-SYSTEMS WILL CAUSE VARI-ATIONS IN THE REQUIREDATIONS IN THE REQUIREDATIONS IN THE REQUIREDATIONS IN THE REQUIREDATIONS IN THE REQUIREDSWITCH SETTINGS.SWITCH SETTINGS.SWITCH SETTINGS.SWITCH SETTINGS.SWITCH SETTINGS.

SwitchSwitchSwitchSwitchSwitch CentrifugalCentrifugalCentrifugalCentrifugalCentrifugal CentrifugalCentrifugalCentrifugalCentrifugalCentrifugal ConstantConstantConstantConstantConstantFanFanFanFanFan PumpPumpPumpPumpPump TorqueTorqueTorqueTorqueTorque

SW1SW1SW1SW1SW1

A0 OFF ON ON

A1 ON ON ON

A2 OFF ON ON

D0 OFF ON ON

D1 ON ON ON

D2 OFF ON ON

FCR ON ON ON

VARI OL OFF OFF OFF

SW2SW2SW2SW2SW2

EXTR OFF OFF OFF

OVR ON ON ON

UVR ON ON ON

OCR OFF OFF OFF

PLR ON ON ON

Hi-Torque OFF OFF ON

EXT SPD OFF OFF OFF

4-20 mA ON ON ON

SW3SW3SW3SW3SW3

COAST OFF OFF OFF

REVERSE OFF OFF OFF

60 HZ ON ON ON

208 OFF OFF OFF

230 OFF OFF OFF

380 OFF OFF OFF

415 OFF OFF OFF

575 OFF OFF OFF

27

6. The COMM P.S. LED on the control boardshould light.

7. The COND DRIVE LED on the control boardshould illuminate a second or two after poweris applied.

WARNING!IF ITEMS ONE THROUGH SEVENIF ITEMS ONE THROUGH SEVENIF ITEMS ONE THROUGH SEVENIF ITEMS ONE THROUGH SEVENIF ITEMS ONE THROUGH SEVENDO NOT OCCUR, DO NOT PRO-DO NOT OCCUR, DO NOT PRO-DO NOT OCCUR, DO NOT PRO-DO NOT OCCUR, DO NOT PRO-DO NOT OCCUR, DO NOT PRO-CEED.CEED.CEED.CEED.CEED.

8.28.28.28.28.2 CALIBRATION PROCEDURECALIBRATION PROCEDURECALIBRATION PROCEDURECALIBRATION PROCEDURECALIBRATION PROCEDURE

1. Press the LOC and HAND push buttons onthe front panel. The RUN indicator should dis-play.

2. Press the ▲ or ▼ push buttons on the SPEEDswitch (see Section 3.1.3) until four of the MIN<—> MAX indicating LCDs are displayed.Check the motor for rotation and proper direc-tion.

A. If the motor does not rotate:1. Check to ensure the motor disconnect

is closed.2. Check to ensure the motor shaft is free

to rotate.B. If the motor rotates in the wrong direction

and the drive has a bypass circuit, beforechanging the motor wiring to correct therotation, you should check motor rotationin the bypass mode (see Section 3.2 a by-pass is provided).

1. If both rotations (drive and bypass)are wrong, exchange the wiring onany two motor phases.

2. If the rotation is incorrect in the by-pass mode but it is correct in the drivemode, exchange the wiring on any twoof the input power wire phases.

3. If the rotation is correct in the bypassmode but it is incorrect in the drivemode, exchange the wiring on any twomotor phases and the wiring on anytwo of the input power wire phases.

NOTE: AC VARIABLE FREQUENCYNOTE: AC VARIABLE FREQUENCYNOTE: AC VARIABLE FREQUENCYNOTE: AC VARIABLE FREQUENCYNOTE: AC VARIABLE FREQUENCYDRIVES DEVELOP THEIR OWNDRIVES DEVELOP THEIR OWNDRIVES DEVELOP THEIR OWNDRIVES DEVELOP THEIR OWNDRIVES DEVELOP THEIR OWNPHASE ROTATION DIRECTIONSPHASE ROTATION DIRECTIONSPHASE ROTATION DIRECTIONSPHASE ROTATION DIRECTIONSPHASE ROTATION DIRECTIONSFOR THE OUTPUT TO THE MO-FOR THE OUTPUT TO THE MO-FOR THE OUTPUT TO THE MO-FOR THE OUTPUT TO THE MO-FOR THE OUTPUT TO THE MO-TOR, SO MOTOR ROTATION CANTOR, SO MOTOR ROTATION CANTOR, SO MOTOR ROTATION CANTOR, SO MOTOR ROTATION CANTOR, SO MOTOR ROTATION CANDIFFER WHEN WIRED TO AN ACDIFFER WHEN WIRED TO AN ACDIFFER WHEN WIRED TO AN ACDIFFER WHEN WIRED TO AN ACDIFFER WHEN WIRED TO AN ACDRIVE AS OPPOSED TO A CON-DRIVE AS OPPOSED TO A CON-DRIVE AS OPPOSED TO A CON-DRIVE AS OPPOSED TO A CON-DRIVE AS OPPOSED TO A CON-VENTIONAL MOTOR STARTER.VENTIONAL MOTOR STARTER.VENTIONAL MOTOR STARTER.VENTIONAL MOTOR STARTER.VENTIONAL MOTOR STARTER.


STSTSTSTSTARTARTARTARTART-UP -UP -UP -UP -UP ANDANDANDANDANDCALIBRACALIBRACALIBRACALIBRACALIBRATION PROCEDURESTION PROCEDURESTION PROCEDURESTION PROCEDURESTION PROCEDURES

WARNING!NO CALIBRATION OR SWITCH PO-NO CALIBRATION OR SWITCH PO-NO CALIBRATION OR SWITCH PO-NO CALIBRATION OR SWITCH PO-NO CALIBRATION OR SWITCH PO-SITION CHANGES SHOULD BESITION CHANGES SHOULD BESITION CHANGES SHOULD BESITION CHANGES SHOULD BESITION CHANGES SHOULD BEMADE WITHOUT A CLEAR UNDER-MADE WITHOUT A CLEAR UNDER-MADE WITHOUT A CLEAR UNDER-MADE WITHOUT A CLEAR UNDER-MADE WITHOUT A CLEAR UNDER-STANDING OF THE PROCEDURE,STANDING OF THE PROCEDURE,STANDING OF THE PROCEDURE,STANDING OF THE PROCEDURE,STANDING OF THE PROCEDURE,EFFECT, AND RESULT OF THEEFFECT, AND RESULT OF THEEFFECT, AND RESULT OF THEEFFECT, AND RESULT OF THEEFFECT, AND RESULT OF THECHANGES. REFER TO THE SEC-CHANGES. REFER TO THE SEC-CHANGES. REFER TO THE SEC-CHANGES. REFER TO THE SEC-CHANGES. REFER TO THE SEC-TION OF THIS MANUAL DESCRIB-TION OF THIS MANUAL DESCRIB-TION OF THIS MANUAL DESCRIB-TION OF THIS MANUAL DESCRIB-TION OF THIS MANUAL DESCRIB-ING THE FUNCTION OF EACHING THE FUNCTION OF EACHING THE FUNCTION OF EACHING THE FUNCTION OF EACHING THE FUNCTION OF EACHCONTROL DEVICE YOU DESIRECONTROL DEVICE YOU DESIRECONTROL DEVICE YOU DESIRECONTROL DEVICE YOU DESIRECONTROL DEVICE YOU DESIRETO CHANGE FOR A DESCRIPTIONTO CHANGE FOR A DESCRIPTIONTO CHANGE FOR A DESCRIPTIONTO CHANGE FOR A DESCRIPTIONTO CHANGE FOR A DESCRIPTIONOF THAT CIRCUIT’S FUNCTIONSOF THAT CIRCUIT’S FUNCTIONSOF THAT CIRCUIT’S FUNCTIONSOF THAT CIRCUIT’S FUNCTIONSOF THAT CIRCUIT’S FUNCTIONSAND LIMITATIONS.AND LIMITATIONS.AND LIMITATIONS.AND LIMITATIONS.AND LIMITATIONS.

HIGH VOLTAGE AC AND DCHIGH VOLTAGE AC AND DCHIGH VOLTAGE AC AND DCHIGH VOLTAGE AC AND DCHIGH VOLTAGE AC AND DCPOWER IS PRESENT INSIDE THEPOWER IS PRESENT INSIDE THEPOWER IS PRESENT INSIDE THEPOWER IS PRESENT INSIDE THEPOWER IS PRESENT INSIDE THEDRIVE ENCLOSURE. THE VOLT-DRIVE ENCLOSURE. THE VOLT-DRIVE ENCLOSURE. THE VOLT-DRIVE ENCLOSURE. THE VOLT-DRIVE ENCLOSURE. THE VOLT-AGES AND CURRENTS PRESENTAGES AND CURRENTS PRESENTAGES AND CURRENTS PRESENTAGES AND CURRENTS PRESENTAGES AND CURRENTS PRESENTARE EXTREMELY DANGEROUSARE EXTREMELY DANGEROUSARE EXTREMELY DANGEROUSARE EXTREMELY DANGEROUSARE EXTREMELY DANGEROUSAND COULD BE FATAL IF CON-AND COULD BE FATAL IF CON-AND COULD BE FATAL IF CON-AND COULD BE FATAL IF CON-AND COULD BE FATAL IF CON-TACTED BY AN INDIVIDUAL. THETACTED BY AN INDIVIDUAL. THETACTED BY AN INDIVIDUAL. THETACTED BY AN INDIVIDUAL. THETACTED BY AN INDIVIDUAL. THEUTMOST CAUTION MUST BE EX-UTMOST CAUTION MUST BE EX-UTMOST CAUTION MUST BE EX-UTMOST CAUTION MUST BE EX-UTMOST CAUTION MUST BE EX-ERCISED WHEN WORKING WITH-ERCISED WHEN WORKING WITH-ERCISED WHEN WORKING WITH-ERCISED WHEN WORKING WITH-ERCISED WHEN WORKING WITH-IN THE DRIVE ENCLOSURE.IN THE DRIVE ENCLOSURE.IN THE DRIVE ENCLOSURE.IN THE DRIVE ENCLOSURE.IN THE DRIVE ENCLOSURE.

8.18.18.18.18.1 PRE-CHECK SEQUENCEPRE-CHECK SEQUENCEPRE-CHECK SEQUENCEPRE-CHECK SEQUENCEPRE-CHECK SEQUENCE

Upon applying power to the drive, the following se-quence of events should occur.

1. All indicators on the door mounted operator’spanel and on the control chip board shouldflash briefly as a lamp test and then extin-guish.

2. The LCD display meter should begin to dis-play.

3. The READY or RUN indicators on the frontpanel should become visible (dependent uponthe status of HAND/OFF/AUTO switch posi-tion and the remote customer contact statusfor run commands.)

4. The TEMP and READY or RUN indicators onthe control chip board should illuminate (de-pendent upon the status of HAND/OFF/AUTOswitch position and remote customer contactstatus of run commands.)

5. The COMM DRIVE LED on the control boardshould pulse dimly in the stop mode.

28

NOTE: DO NOT CHANGE MOTOR ROTA-TION BY USING THE REV SWITCHON THE CONTROL CHIP BOARD.SEE SECTION 7.3.2.

3. Connect the positive lead of a DC voltmeter atthe top of R33 resistor and the negative voltme-ter lead to the R37 lead closest to J5 terminalblock on the control circuit board. See thedrawing to the right for exact location.

THESE TEST POINTS MAY BE AT ATHESE TEST POINTS MAY BE AT ATHESE TEST POINTS MAY BE AT ATHESE TEST POINTS MAY BE AT ATHESE TEST POINTS MAY BE AT ADANGEROUSLY HIGH VOLTAGEDANGEROUSLY HIGH VOLTAGEDANGEROUSLY HIGH VOLTAGEDANGEROUSLY HIGH VOLTAGEDANGEROUSLY HIGH VOLTAGEWITH RESPECT TO EACH OTHERWITH RESPECT TO EACH OTHERWITH RESPECT TO EACH OTHERWITH RESPECT TO EACH OTHERWITH RESPECT TO EACH OTHERAND WITH RESPECT TO EARTHAND WITH RESPECT TO EARTHAND WITH RESPECT TO EARTHAND WITH RESPECT TO EARTHAND WITH RESPECT TO EARTHGROUND.GROUND.GROUND.GROUND.GROUND.

4. Press the REM push button of the SPEEDSELECT switch. Command the automatic con-trol system to transmit the minimum speedcommand signal (Example: 4 mA on a 4 to 20mA control system) to terminals 13 and 14 ofterminal strip 4TB4. Adjust the OFFSET po-tentiometer until the voltmeter begins to in-crease. Then slowly reverse the adjustment ofthe OFFSET potentiometer until the voltme-ter just reaches its minimum value. This ad-justment fine tunes the drive’s remote cir-cuitry to match the automatic control system.

5. Transmit the maximum speed command sig-nal from the automatic control system (Ex-ample: 20 mA on a 4 to 20 mA control system)to terminals 13 and 14 of terminal strip 4TB4.Adjust the GAIN potentiometer CCW untilthe voltmeter begins to decrease in voltage.Then adjust until the voltage on the meterjust reaches its maximum value.

6. Repeat steps 3 and 4.

7. With the automatic control system still send-ing its maximum speed command signal, ad-just the MAX SPEED potentiometer for thedesired maximum speed by noting the voltageon the DC volt meter. The following tableshows the voltage for a maximum speed forvarious drive voltages. If a reduced maximumspeed is desired, the DC volt meter readingwill be proportionally lower.Drive Voltage DC Voltage at

Maximum Speed575 V AC 750 V DC460 V AC 600 V DC230 V AC 300 V DC208 V AC 270 V DC

NOTE: THE MAXIMUM SPEED POTENTIOM-ETER LIMITS THE DRIVE'S MAXIMUMSPEED FOR BOTH LOCAL AND REMOTEOPERATION.

7. Command the automatic control system to sendits minimum speed command signal. Adjust theMIN SPEED potentiometer for a DC voltagewhich corresponds to the desired speed. For ex-ample, for a minimum speed of 30% on a 460 VAC drive, adjust this potentiometer for a read-ing of 180 V DC. (30% x 600 V DC)

29

SECTION NINE — SERVICESECTION NINE — SERVICESECTION NINE — SERVICESECTION NINE — SERVICESECTION NINE — SERVICEINFORMAINFORMAINFORMAINFORMAINFORMATIONTIONTIONTIONTION

9.19.19.19.19.1 INTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTION

This section of the manual is intended for those whowish to perform their own troubleshooting and repair.Persons attempting to perform the drive service de-scribed in this section should have a strong backgroundin power electronics, experience in using test equip-ment, and a good understanding of analog and digitalcontrol circuitry. Graham Company offers serviceschools to show you how to troubleshoot and repair thisdrive. Contract the Graham Service Department forservice assistance.

9.29.29.29.29.2 DESCRIPTION OF OPERATIONDESCRIPTION OF OPERATIONDESCRIPTION OF OPERATIONDESCRIPTION OF OPERATIONDESCRIPTION OF OPERATION

The drive consists of two main sections, the powersection and the control section.

The first part of the power section is the input SCRbridge. It converts the incoming three phase AC to aregulated DC voltage.

The second part of the power section is the conduction/commutation switching circuit. This circuit directs theregulated DC to the inverter.

The third part of the power section is the inverter. Theinverter directs the regulated DC to the correct phasesof the motor for the proper time period.

The control board contains the circuitry required tointerface the power section with the low voltage controlchip board. It also provides the interface between thecustomer inputs and the control chip board. The controlboard is the large square printed circuit board locatedunder the clear plexiglass cover.

The control chip board contains the control logic cir-cuitry, customer selection switches, customer and fac-tory adjustment potentiometers and LED indicators.

9.39.39.39.39.3 TROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTING

The procedures outlined here are intended to assist inlocating and correcting a problem in a standard drive.Power circuit measurements should only be made byqualified technicians.

DANGER!EYE PROTECTION IS REQUIREDEYE PROTECTION IS REQUIREDEYE PROTECTION IS REQUIREDEYE PROTECTION IS REQUIREDEYE PROTECTION IS REQUIREDANY TIME THAT THE ENCLOSUREANY TIME THAT THE ENCLOSUREANY TIME THAT THE ENCLOSUREANY TIME THAT THE ENCLOSUREANY TIME THAT THE ENCLOSUREIS OPEN.IS OPEN.IS OPEN.IS OPEN.IS OPEN.

DANGER!EXTREME CAUTION MUST BE USEDEXTREME CAUTION MUST BE USEDEXTREME CAUTION MUST BE USEDEXTREME CAUTION MUST BE USEDEXTREME CAUTION MUST BE USEDWHENEVER POWER IS APPLIEDWHENEVER POWER IS APPLIEDWHENEVER POWER IS APPLIEDWHENEVER POWER IS APPLIEDWHENEVER POWER IS APPLIEDAND THE ENCLOSURE IS OPEN.AND THE ENCLOSURE IS OPEN.AND THE ENCLOSURE IS OPEN.AND THE ENCLOSURE IS OPEN.AND THE ENCLOSURE IS OPEN.ANYONE WORKING ON THE DRIVEANYONE WORKING ON THE DRIVEANYONE WORKING ON THE DRIVEANYONE WORKING ON THE DRIVEANYONE WORKING ON THE DRIVEWILL BE EXPOSED TO HIGH VOLT-WILL BE EXPOSED TO HIGH VOLT-WILL BE EXPOSED TO HIGH VOLT-WILL BE EXPOSED TO HIGH VOLT-WILL BE EXPOSED TO HIGH VOLT-AGE. ALWAYS REMOVE POWERAGE. ALWAYS REMOVE POWERAGE. ALWAYS REMOVE POWERAGE. ALWAYS REMOVE POWERAGE. ALWAYS REMOVE POWERWHEN SERVICING THE COMPO-WHEN SERVICING THE COMPO-WHEN SERVICING THE COMPO-WHEN SERVICING THE COMPO-WHEN SERVICING THE COMPO-NENTS OF THE DRIVE. WAIT UN-NENTS OF THE DRIVE. WAIT UN-NENTS OF THE DRIVE. WAIT UN-NENTS OF THE DRIVE. WAIT UN-NENTS OF THE DRIVE. WAIT UN-TIL THE “BUS POWER” AND “COM-TIL THE “BUS POWER” AND “COM-TIL THE “BUS POWER” AND “COM-TIL THE “BUS POWER” AND “COM-TIL THE “BUS POWER” AND “COM-MUTATION POWER SUPPLY” LEDSMUTATION POWER SUPPLY” LEDSMUTATION POWER SUPPLY” LEDSMUTATION POWER SUPPLY” LEDSMUTATION POWER SUPPLY” LEDSHAVE EXTINGUISHED.HAVE EXTINGUISHED.HAVE EXTINGUISHED.HAVE EXTINGUISHED.HAVE EXTINGUISHED.

THEN MEASURE FOR VOLTAGETHEN MEASURE FOR VOLTAGETHEN MEASURE FOR VOLTAGETHEN MEASURE FOR VOLTAGETHEN MEASURE FOR VOLTAGEFROM J2-9 TO J5-20 ON THE CON-FROM J2-9 TO J5-20 ON THE CON-FROM J2-9 TO J5-20 ON THE CON-FROM J2-9 TO J5-20 ON THE CON-FROM J2-9 TO J5-20 ON THE CON-TROL BOARD USING A VOLTME-TROL BOARD USING A VOLTME-TROL BOARD USING A VOLTME-TROL BOARD USING A VOLTME-TROL BOARD USING A VOLTME-TER SET ON THE 100 V DC SCALE.TER SET ON THE 100 V DC SCALE.TER SET ON THE 100 V DC SCALE.TER SET ON THE 100 V DC SCALE.TER SET ON THE 100 V DC SCALE.ALLOW THIS VOLTAGE TO DROPALLOW THIS VOLTAGE TO DROPALLOW THIS VOLTAGE TO DROPALLOW THIS VOLTAGE TO DROPALLOW THIS VOLTAGE TO DROPTO ZERO BEFORE WORKING ONTO ZERO BEFORE WORKING ONTO ZERO BEFORE WORKING ONTO ZERO BEFORE WORKING ONTO ZERO BEFORE WORKING ONTHE DRIVE.THE DRIVE.THE DRIVE.THE DRIVE.THE DRIVE.

All power circuit voltages are floating at a very highpotential with respect to ground and require isolated orfloating test equipment. Control signal voltages arereferenced to ground through a 1,000 ohm resistor.

If a problem is isolated to a calibration setting, refer tothe internal adjustments section of this manual beforeattempting any changes.

Some steps in these instructions use conditions set upin previous steps. Therefore, any time power is inter-rupted or controls are changed, care must be taken torepeat the specified set-up.

It is recommended that a complete checkout of theMain Control Board be made or a known good MainControl Board be installed whenever problems recur orcomponents continue to fail. A log of all service shouldbe maintained. The following information should beincluded.

1. Date and time of failure2. Description of symptoms3. Operating conditions4. What component failed5. Other conditions occurring at the same

time which may be related6. Service performed7. Who performed the service

30

TYPICAL 1703 SERIESWith Control Board Swung Open

InputSCRs

C20

InverterSCRs

DiodeBridge

BusCapacitors

Q1 TransistorModule

SnubberBoard

D1 DiodeModule

31

9.4 MINIMUM RECOMMENDED TEST9.4 MINIMUM RECOMMENDED TEST9.4 MINIMUM RECOMMENDED TEST9.4 MINIMUM RECOMMENDED TEST9.4 MINIMUM RECOMMENDED TESTEQUIPMENTEQUIPMENTEQUIPMENTEQUIPMENTEQUIPMENT

VOLTOHM METER — Simpson #260, Fluke73 or equal

AMMETER — Simpson #150 or equalOSCILLOSCOPE — Tektronix #323 or

equalSCOPE PROBE — Tektronix #P600T or

equal; set on X10 scale for use on circuitboards, X100 scale for power components.

TORQUE WRENCH — For power components,with hex key sockets

HAND TACHOMETER — For measuring motorspeed

9.59.59.59.59.5 DIODE, TRANSISTOR AND SCRDIODE, TRANSISTOR AND SCRDIODE, TRANSISTOR AND SCRDIODE, TRANSISTOR AND SCRDIODE, TRANSISTOR AND SCRTEST PROCEDURETEST PROCEDURETEST PROCEDURETEST PROCEDURETEST PROCEDURE

Remove the input power and wait for the BUS PWRLED to extinguish. After checking to confirm that novoltage is present from J2-9 to J5-20 on the ControlBoard, visually inspect the drive for any physical evi-dence of a failure such as:

1. Leaking or distorted capacitors2. Discolored component3. Loose connections4. Cracked or broken semiconductors

Check all power semiconductors and large capacitorsfor shorts. All fuses should be checked. For propertesting methods of diodes, transistors and SCRs seeSection 9.5.1. These steps will generally locate most ofthe problems that may occur under normal operatingconditions and should be performed first.

9.5.19.5.19.5.19.5.19.5.1 DIODE, TRANSISTOR AND SCRDIODE, TRANSISTOR AND SCRDIODE, TRANSISTOR AND SCRDIODE, TRANSISTOR AND SCRDIODE, TRANSISTOR AND SCRTESTINGTESTINGTESTINGTESTINGTESTING

All leads, including the bus bars, must be disconnectedfrom the device being tested. The resistance valuesshown are for good components. If a reading is in doubt,compare it to a known good component. Exact valuescannot be given, as readings will vary with meter andscale used.

Diodes, transistors, and SCRs may be tested by usingthe procedure outlined in this section to check for shortor open circuits. When readings fall into questionableor faulty areas, do not replace the device until acomparison test is made with a known good device.Recheck the components out of the circuit. Always usethe same ohmmeter when performing comparison tests.

Failure of a power transistor or SCR indicates the needto completely check out the control board. This should

be performed by a factory trained technician, or thecontrol board should be replaced. Failure to check outor replace the board could cause repeated failure.

INPUT/OUTPUT SCR MODULESINPUT/OUTPUT SCR MODULESINPUT/OUTPUT SCR MODULESINPUT/OUTPUT SCR MODULESINPUT/OUTPUT SCR MODULES

Input SCR, all models, andOutput SCR 7.5 through 53 amp 1

Either style may be used

Output SCR, 65 through 100 amp 1

1 Refer to the “Output Drive Current” rating on theplastic cover over control board for this value.

Meter Lead Resistance ReadingPositive Negative (ohms)

A1K2 K1,A2 >10,000K1, A2 A1K2 >10,000A1K2 G2 <1,000

G2 A1K2 <1,000K1 G1 <1,000G1 K1 <1,000

K2 G2

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Meter Leads Resistance ReadingPositive Negative (ohms)

C1 C2,E1 >10,000C2,E1 C1 <1,000C2,E1 E2 >10,000

E2 C2,E1 <1,000B2 E2 <1,000E2 B2 <1,000B1 E1 <1,000E1 B1 <1,000B1 C1 <1,000C1 B1 >10,000B2 C2,E1 <1,000

C2,E1 B2 >10,000

FREE-WHEELING DIODE MODULEFREE-WHEELING DIODE MODULEFREE-WHEELING DIODE MODULEFREE-WHEELING DIODE MODULEFREE-WHEELING DIODE MODULE

Free-wheeling Diode, 7.5 through 53 amp 1


AM- AK1~, AK2~, AK3~ <1,000KM+ AK1~, AK2~, AK3~ >10,000

AK1~, AK2~, AK3~ AM- >10,000AK1~, AK2~, AK3~ KM+ <1,000

OUTPUT DIODE BRIDGE MODULEOUTPUT DIODE BRIDGE MODULEOUTPUT DIODE BRIDGE MODULEOUTPUT DIODE BRIDGE MODULEOUTPUT DIODE BRIDGE MODULE

Output Diode Bridge, 7.5 through 34 amp 1

Output Diode Bridge, 40 through 100 amp 1


A1 K1, K2 <1,000K1,K2 A1 >10,000

K1 A2 >10,000A2 A1,K2 <1,000

Free-wheeling Diode, 65 through 100 amp 1

CONDUCTION/COMMUTATIONCONDUCTION/COMMUTATIONCONDUCTION/COMMUTATIONCONDUCTION/COMMUTATIONCONDUCTION/COMMUTATIONTRANSISTOR MODULETRANSISTOR MODULETRANSISTOR MODULETRANSISTOR MODULETRANSISTOR MODULE

Conduction/Commutation Transistor Module,7.5 through 28 amp 1

Conduction/Commutation Transistor Module,34 through 53 amp 1

Conduction/Commutation Transistor Module,65 through 100 amp 1

1 Refer to the “Output Drive Current” rating on theplastic cover over control board for this value.

K1K2 A1 A2

K1K2 K1 A2

A1

33

drives. Retorque the mounting screws and wiring screwsto 53 inch pounds on the 65 through 100 amp drives.Refer to the “Output Drive Current” rating on theplastic cover over the control board for this value.

9.6.59.6.59.6.59.6.59.6.5 CONDUCTION/COMMUTATIONCONDUCTION/COMMUTATIONCONDUCTION/COMMUTATIONCONDUCTION/COMMUTATIONCONDUCTION/COMMUTATIONTRANSISTOR MODULETRANSISTOR MODULETRANSISTOR MODULETRANSISTOR MODULETRANSISTOR MODULE

The dual transistor module designated Q1 is the con-duction/commutation transistor module. When chang-ing this module, a new thermal pad, or heatsink com-pound, must be used. Use Thermalcote®, manufacturedby Thermalloy, Inc. or equivalent heatsink compoundand apply a layer 1 mil thick. The heatsink must bethoroughly cleaned before reassembly. Retorque themounting screws to 26 inch pounds and the wiringscrews to 17 inch pounds on the 7.5 through 28 ampdrives. Retorque the mounting screws and wiring screwsto 26 inch pounds on the 34 through 100 amp drives.Refer to the “Output Drive Current” rating on theplastic cover over the control board for this value.

9.7 POWER UP SEQUENCE9.7 POWER UP SEQUENCE9.7 POWER UP SEQUENCE9.7 POWER UP SEQUENCE9.7 POWER UP SEQUENCE

DANGER!HIGH VOLTAGE WILL BE PRESENTHIGH VOLTAGE WILL BE PRESENTHIGH VOLTAGE WILL BE PRESENTHIGH VOLTAGE WILL BE PRESENTHIGH VOLTAGE WILL BE PRESENTIN THE DRIVE WHEN PERFORM-IN THE DRIVE WHEN PERFORM-IN THE DRIVE WHEN PERFORM-IN THE DRIVE WHEN PERFORM-IN THE DRIVE WHEN PERFORM-ING OPERATIONAL TESTS WITHING OPERATIONAL TESTS WITHING OPERATIONAL TESTS WITHING OPERATIONAL TESTS WITHING OPERATIONAL TESTS WITHPOWER APPLIED TO THE DRIVE.POWER APPLIED TO THE DRIVE.POWER APPLIED TO THE DRIVE.POWER APPLIED TO THE DRIVE.POWER APPLIED TO THE DRIVE.

Apply input power to the drive. All the LEDs on thecontrol chip board should light for approximately onesecond. Then, if the drive is in the stop mode, all but theREADY and TEMP LEDs should turn off.

On the control board, the COMM P.S. LED should lightimmediately after power is applied. After approxi-mately one second, the COND. DRIVE LED shouldlight, and the COMM. DRIVE LED should flash verydimly.

9.8 POWER SUPPLY ON THE9.8 POWER SUPPLY ON THE9.8 POWER SUPPLY ON THE9.8 POWER SUPPLY ON THE9.8 POWER SUPPLY ON THECONTROL BOARDCONTROL BOARDCONTROL BOARDCONTROL BOARDCONTROL BOARD

Power supply common is connected to J6-19 on thecontrol board which connects to J3-19 on the controlchip board. Connection to common is also availablefrom the top side of R67. R67 is a 2 watt resistor locatedon the extreme lower right hand corner of the ControlBoard. These circuit common points can be used for testequipment connection for the following steps.

9.6 DIODE, TRANSISTOR AND SCR9.6 DIODE, TRANSISTOR AND SCR9.6 DIODE, TRANSISTOR AND SCR9.6 DIODE, TRANSISTOR AND SCR9.6 DIODE, TRANSISTOR AND SCRREPLACEMENTREPLACEMENTREPLACEMENTREPLACEMENTREPLACEMENT

9.6.1 INPUT SCR MODULES9.6.1 INPUT SCR MODULES9.6.1 INPUT SCR MODULES9.6.1 INPUT SCR MODULES9.6.1 INPUT SCR MODULES

SCRs designated SCR 7/10, SCR 8/11, SCR 9/12 areinput SCR modules. When changing an input SCRmodule, use a new thermal pad or apply heatsinkcompound. Use Thermalcote®, manufactured by Ther-malloy, Inc., or equivalent heatsink compound andapply a 1 mil thick layer. The heatsink must be thor-oughly cleaned before reassembly. Retorque the mount-ing screws and wire screws to 35 inch pounds.

9.6.29.6.29.6.29.6.29.6.2 OUTPUT SCR MODULESOUTPUT SCR MODULESOUTPUT SCR MODULESOUTPUT SCR MODULESOUTPUT SCR MODULES

SCRs designated SCR 1/4, SCR 2/5, SCR 3/6 are outputSCR modules. When changing an output SCR module,a new thermal pad, or heat sink compound, must beused. Use Thermalcote®, manufactured by Thermalloy,Inc. or equivalent for heatsink compound and apply alayer 1 mil thick. The heatsink must be thoroughlycleaned before reassembly. Retorque the mountingscrews and wiring screws to 35 inch pounds on the 7.5through 53 amp drives. Retorque the mounting screwsand wiring screws to 55 inch pounds on the 65 through100 amp drives. Refer to the “Output Drive Current”rating on the plastic cover over the control board forthis value.

9.6.39.6.39.6.39.6.39.6.3 OUTPUT DIODE BRIDGEOUTPUT DIODE BRIDGEOUTPUT DIODE BRIDGEOUTPUT DIODE BRIDGEOUTPUT DIODE BRIDGE

The diode bridge designated D BRDG 1 is the outputdiode bridge module When changing a diode bridgemodule, a new thermal pad, or heatsink compound,must be used. Use Thermalcote®, manufactured byThermalloy, Inc. or equivalent heatsink compound andapply a layer 1 mil thick. The heatsink must be thor-oughly cleaned before reassembly. Retorque the mount-ing screws to 18 inch pounds on the 7.5 through 34 ampdrives. Retorque the mounting screws and wiring screwto 44 inch pounds on the 40 through 100 amp drives.Refer to the “Output Drive Current” rating on theplastic cover over the control board for this value.

9.6.4.9.6.4.9.6.4.9.6.4.9.6.4. FREE-WHEELING DIODEFREE-WHEELING DIODEFREE-WHEELING DIODEFREE-WHEELING DIODEFREE-WHEELING DIODE

The diode module designated D1 is the free-wheelingdiode module. When changing a diode module, a newthermal pad, or heatsink compound, must be used. UseThermalcote®, manufactured by Thermalloy, Inc. orequivalent heatsink compound and apply a layer 1 milthick. The heatsink must be thoroughly cleaned beforereassembly. Retorque the mounting screws and wiringscrews to 35 inch pounds on the 7.5 through 53 amp

34

Check the +24 V DC power supply on J6-17 on theControl Board for +20 to +30 V DC.

Check the -24 V DC power supply on J6-20 on theControl Board for -20 to -30 V DC.

Check the +15 V DC power supply on J6-15 on theControl Board for +14.4 to +15.6 V DC.

Check the -15 V DC power supply on J6-16 on theControl Board for -14.4 to -15.6 V DC.

Check the +5 V DC power supply on J4-19 on theControl Board for +4.8 to +5.2 V DC.

An oscilloscope should also be used in checking theabove voltages to ensure that there is no excessiveripple voltage in these DC power supplies.

9.9 OUTPUT CHECKS9.9 OUTPUT CHECKS9.9 OUTPUT CHECKS9.9 OUTPUT CHECKS9.9 OUTPUT CHECKS

Start the drive and accelerate the motor to full speed.Measure the phase to phase voltage on the motor leads.These should be balanced within ±0.5 V AC. Any lackof balance indicates a problem with the motor wind-ings, the wiring to the motor or the inverter circuits inthe drive.

NOTE: BECAUSE THE OUTPUT OFNOTE: BECAUSE THE OUTPUT OFNOTE: BECAUSE THE OUTPUT OFNOTE: BECAUSE THE OUTPUT OFNOTE: BECAUSE THE OUTPUT OFTHE DRIVE IS NOT A PURE SINETHE DRIVE IS NOT A PURE SINETHE DRIVE IS NOT A PURE SINETHE DRIVE IS NOT A PURE SINETHE DRIVE IS NOT A PURE SINEWAVE, THE METER MAY NOT READWAVE, THE METER MAY NOT READWAVE, THE METER MAY NOT READWAVE, THE METER MAY NOT READWAVE, THE METER MAY NOT READTHE RATED AC OUTPUT VOLTAGE.THE RATED AC OUTPUT VOLTAGE.THE RATED AC OUTPUT VOLTAGE.THE RATED AC OUTPUT VOLTAGE.THE RATED AC OUTPUT VOLTAGE.THIS IS NOT A CAUSE FOR CON-THIS IS NOT A CAUSE FOR CON-THIS IS NOT A CAUSE FOR CON-THIS IS NOT A CAUSE FOR CON-THIS IS NOT A CAUSE FOR CON-CERN. THIS CHECK IS ONLY FORCERN. THIS CHECK IS ONLY FORCERN. THIS CHECK IS ONLY FORCERN. THIS CHECK IS ONLY FORCERN. THIS CHECK IS ONLY FORVOLTAGE BALANCE BETWEENVOLTAGE BALANCE BETWEENVOLTAGE BALANCE BETWEENVOLTAGE BALANCE BETWEENVOLTAGE BALANCE BETWEENTHE OUTPUT PHASES AND NOTTHE OUTPUT PHASES AND NOTTHE OUTPUT PHASES AND NOTTHE OUTPUT PHASES AND NOTTHE OUTPUT PHASES AND NOTTHE EXACT VOLTAGE READINGS.THE EXACT VOLTAGE READINGS.THE EXACT VOLTAGE READINGS.THE EXACT VOLTAGE READINGS.THE EXACT VOLTAGE READINGS.

WARNING!HIGH VOLTAGE WILL BE PRESENTHIGH VOLTAGE WILL BE PRESENTHIGH VOLTAGE WILL BE PRESENTHIGH VOLTAGE WILL BE PRESENTHIGH VOLTAGE WILL BE PRESENTIN THE DRIVE WHEN PERFORM-IN THE DRIVE WHEN PERFORM-IN THE DRIVE WHEN PERFORM-IN THE DRIVE WHEN PERFORM-IN THE DRIVE WHEN PERFORM-ING THE OPERATIONAL TESTSING THE OPERATIONAL TESTSING THE OPERATIONAL TESTSING THE OPERATIONAL TESTSING THE OPERATIONAL TESTSWITH POWER APPLIED TO THEWITH POWER APPLIED TO THEWITH POWER APPLIED TO THEWITH POWER APPLIED TO THEWITH POWER APPLIED TO THEDRIVE. THE POWER CIRCUITS OFDRIVE. THE POWER CIRCUITS OFDRIVE. THE POWER CIRCUITS OFDRIVE. THE POWER CIRCUITS OFDRIVE. THE POWER CIRCUITS OFTHE DRIVE NECESSARILY FLOATTHE DRIVE NECESSARILY FLOATTHE DRIVE NECESSARILY FLOATTHE DRIVE NECESSARILY FLOATTHE DRIVE NECESSARILY FLOATAT A HIGH VOLTAGE ABOVEAT A HIGH VOLTAGE ABOVEAT A HIGH VOLTAGE ABOVEAT A HIGH VOLTAGE ABOVEAT A HIGH VOLTAGE ABOVEGROUND POTENTIAL. BOTHGROUND POTENTIAL. BOTHGROUND POTENTIAL. BOTHGROUND POTENTIAL. BOTHGROUND POTENTIAL. BOTHLEADS OF ANY TEST EQUIPMENTLEADS OF ANY TEST EQUIPMENTLEADS OF ANY TEST EQUIPMENTLEADS OF ANY TEST EQUIPMENTLEADS OF ANY TEST EQUIPMENTTHAT IS CONNECTED TO THETHAT IS CONNECTED TO THETHAT IS CONNECTED TO THETHAT IS CONNECTED TO THETHAT IS CONNECTED TO THEDRIVE'S POWER CIRCUITS WILLDRIVE'S POWER CIRCUITS WILLDRIVE'S POWER CIRCUITS WILLDRIVE'S POWER CIRCUITS WILLDRIVE'S POWER CIRCUITS WILLALSO BE AT A HIGH VOLTAGE WITHALSO BE AT A HIGH VOLTAGE WITHALSO BE AT A HIGH VOLTAGE WITHALSO BE AT A HIGH VOLTAGE WITHALSO BE AT A HIGH VOLTAGE WITHRESPECT TO GROUND. INSTRU-RESPECT TO GROUND. INSTRU-RESPECT TO GROUND. INSTRU-RESPECT TO GROUND. INSTRU-RESPECT TO GROUND. INSTRU-MENTS CONNECTED TO THEMENTS CONNECTED TO THEMENTS CONNECTED TO THEMENTS CONNECTED TO THEMENTS CONNECTED TO THEPOWER CIRCUITS MUST HAVEPOWER CIRCUITS MUST HAVEPOWER CIRCUITS MUST HAVEPOWER CIRCUITS MUST HAVEPOWER CIRCUITS MUST HAVEBOTH LEADS ISOLATED FROMBOTH LEADS ISOLATED FROMBOTH LEADS ISOLATED FROMBOTH LEADS ISOLATED FROMBOTH LEADS ISOLATED FROMEARTH GROUND. IF ONE TESTEARTH GROUND. IF ONE TESTEARTH GROUND. IF ONE TESTEARTH GROUND. IF ONE TESTEARTH GROUND. IF ONE TESTLEAD IS CONNECTED TO THE CASELEAD IS CONNECTED TO THE CASELEAD IS CONNECTED TO THE CASELEAD IS CONNECTED TO THE CASELEAD IS CONNECTED TO THE CASEOF THE TEST INSTRUMENTS, THEOF THE TEST INSTRUMENTS, THEOF THE TEST INSTRUMENTS, THEOF THE TEST INSTRUMENTS, THEOF THE TEST INSTRUMENTS, THETEST INSTRUMENT’S CASE WILLTEST INSTRUMENT’S CASE WILLTEST INSTRUMENT’S CASE WILLTEST INSTRUMENT’S CASE WILLTEST INSTRUMENT’S CASE WILLALSO BE AT A HIGH VOLTAGE WITHALSO BE AT A HIGH VOLTAGE WITHALSO BE AT A HIGH VOLTAGE WITHALSO BE AT A HIGH VOLTAGE WITHALSO BE AT A HIGH VOLTAGE WITHRESPECT TO EARTH GROUND.RESPECT TO EARTH GROUND.RESPECT TO EARTH GROUND.RESPECT TO EARTH GROUND.RESPECT TO EARTH GROUND.

35

TTTTTroubleshooting Flow Chartroubleshooting Flow Chartroubleshooting Flow Chartroubleshooting Flow Chartroubleshooting Flow ChartDrive does not operate normallyDrive does not operate normallyDrive does not operate normallyDrive does not operate normallyDrive does not operate normally

Is input power applied to disconnect?

YES

Are cooling fan(s) operating?

YES

Is the COMM PS light on the ControlBoard illuminated?

YES

Is OT (overtemperature) indicated onthe enclosure door?

NO

Is FAULT indicated on the enclosuredoor?

NO

With the drive stopped, is the CONDDRIVE light on the Control Boardilluminated and the COMM DRIVElight dim but flickering?

YES

Give the drive a run command. Is RUNindicated on the enclosure door?

YES

Is the motor rotating?

YES

Does the motor turn in the properdirection?

YES

Does the motor accelerate to full speedunder load?

YES

END

NO Apply power

NO Check fan wiresCheck for rated line voltagebetween terminals L1, L2 and L3 onterminal block TB3 on the driveCheck fuses F1 and F2 located onthe Power Board or Snubber Board

NO Check fuse F3 located on the PowerBoard or Snubber Board

YES See Section 4.9 to help diagnose theproblem

YES See Section 4 to help diagnose theproblem

NO Replace the control board

NO If using auto run input:1. Press the AUTO button on the enclosure door2. Check for 115VAC between terminals 3 and 4 on terminal block TB4If using HAND/OFF run input:1. Press the HAND button on the enclosure door2. Check the 50 pin ribbon cable connections

NO Is the motor disconnect switch closed?Has a speed reference commandbeen given?

NO Reverse two of the power leads tothe motor

NO For local operation, hold down theSPEED increase button on theenclosure door until all 9 squares ofthe bar graph are on. (Hold downfor approximately 15 sec)

For remote operation:1. Check that the external referenceinput applied to terminals 1 and 2on TB4 is at maximum2. Is the current limit potentiometer(P7) on the Control Chip Board fullyclockwise?3. Are the maximum speed, gainand offset potentiometers (P4, P2and P1) on the Control Chip Boardat their factory settings?

Does the drive have a constantspeed bypass?

⇐ NO YES ⇓

Does the motor turn in the properdirection during bypass?

⇐ YES NO ⇓Reverse two of the input powerleads to the drive

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