V4.17,November 26, 2002
TTC-1000
Transformer Temperature Controller
Instruction & Operation Manual
240 Dr. MLK Blvd.
Newark, NJ 07102
Phone: (973) 621-6600
Fax: (973) 621-6625
Website: advpowertech.com
e-mail: [email protected]
Advanced Power Technologies
Table of Contents
i V4.17,November 26, 2002
1.0 INTRODUCTION ...........................................................................................1
2.0 PRODUCT DESCRIPTION............................................................................3
2.1 Controls & Indicators..................................................................................3
2.2 Connections ...............................................................................................5
2.3 Mounting ..................................................................................................11
2.4 Specifications ...........................................................................................13
2.5 Part Number Details.................................................................................15
3.0 INSTALLATION & USE ...............................................................................16
3.1 Power Hookup..........................................................................................16
3.2 Temperature Probes ................................................................................16
3.3 Settings ....................................................................................................17
3.4 Temperature Set Points ...........................................................................18
3.5 Calculated Winding Hot Spot Temperature..............................................21
3.6 Time Set Points........................................................................................22
3.7 LTC Condition Monitoring.........................................................................22
3.8 Load Set Points........................................................................................24
3.9 Programmable Logic ................................................................................25
3.10 Manual Output Control .........................................................................27
3.11 Device Alarm ........................................................................................28
3.12 Alternate Fan Banks .............................................................................29
3.13 Analog Outputs.....................................................................................30
3.14 DNP3.0 Communications .....................................................................30
3.15 Heater Option .......................................................................................33
4.0 THEORY of OPERATION............................................................................34
4.1 Discussion of Operation ...........................................................................34
4.2 Temperature Measurement......................................................................36
4.3 Aux CT Interface ......................................................................................38
4.4 Calculated Winding Temperature.............................................................38
4.5 Outputs ....................................................................................................39
4.6 Power Supply ...........................................................................................40
4.7 Timers ......................................................................................................40
Table of Contents
ii V4.17,November 26, 2002
4.8 Real Time Clock.......................................................................................41
4.9 Electrically Erasable Memory ...................................................................41
4.10 Alarm ....................................................................................................41
4.11 Analog Outputs.....................................................................................42
4.12 Programmable Logic ............................................................................44
4.13 RS-232 Interface ..................................................................................45
4.14 Communications Processor..................................................................45
5.0 FRONT PANEL MENU AND MENU NAVIGATION.....................................46
5.1 Temperature & Time Display....................................................................47
5.2 VIEW........................................................................................................47
5.3 PROGRAM...............................................................................................47
5.4.1 Password Entry.................................................................................48
5.4.2 Summary of Front Panel Settings .....................................................49
5.4.3 Temperature Set Points ....................................................................60
5.4.4 LTCDIFF Set Point............................................................................61
5.4.5 Output Pickup Timers........................................................................61
5.4.6 Output Assignment ...........................................................................62
5.4 STATUS...................................................................................................64
6.0 RS-232 Communications.............................................................................65
6.1 Main Menu ...............................................................................................65
6.2 View .........................................................................................................66
6.3 Program ...................................................................................................68
6.4 Status.......................................................................................................83
6.5 Upload Settings........................................................................................84
6.6 Download Settings ...................................................................................85
6.7 Command Mode.......................................................................................85
7.0 DNP3.0 Profile Document............................................................................87
Table of Figures
iii V4.17,November 26, 2002
Figure 2. 1a: Front Panel, Panel Mount Version ...................................................3
Figure 2.1b: Front Panel, NEMA 4 Version...........................................................3
Figure 2.2a: Rear Panel Connections, Panel Mount (Analog Output)...................5
Figure 2.2b: Rear Panel Connections, Panel Mount (DNP3.0 Version) ................6
Figure 2.3: NEMA 4 Connections .........................................................................7
Figure 2.4: Connection Diagram ...........................................................................9
Figure 2.5: Temperature Probe Shield Grounding ..............................................10
Figure 2.6 : Transformer Temperature Probe .....................................................10
Figure 2. 7: Panel Mount Version Physical Dimensions and Panel Cutout .........11
Figure 2.8: NEMA 4X Mounting ..........................................................................12
Figure 2.9: Retro fit Mounting Bracket ................................................................12
Figure 3.1: Over Temp Operation .......................................................................19
Figure 3.2: Under Temp Operation .....................................................................20
Figure 3.3: LTC Differential Set Point Operation.................................................23
Figure 4.1: Software Operation...........................................................................34
Figure 4.2: Block Diagram ..................................................................................36
Figure 4.3: Temperature A/D Conversion ...........................................................37
Figure 4.4: Output Pick Up Timer........................................................................40
Table 4.5: Operands ...........................................................................................44
Figure 5.1: Major Menu Navigation .....................................................................46
Figure 5.2: Password Entry................................................................................48
Figure 5.3: Setting SPpn Pickup & Dropout Temperatures.................................60
Figure 5.4: Setting LTCDIFF Pickup & Dropout ..................................................61
Figure 5.5: Output Pickup Timer Setting .............................................................61
Figure 5.6: Assigning Temperature SP, LTCDIFF, Output Operands to Outputs63
Figure 5.7: Assigning Time Set Point Operand to Outputs .................................64
Warranty
iv V4.17,November 26, 2002
All new products sold to customers are warranted against defects in design, materials, and workmanship for
the life of their use to the original end user. If it is determined that the new product defect is covered under
this warranty, Advanced Power Technologies, LLC (the “Company”) will repair, replace, or substitute an
identical unit at its own discretion to the customer at no charge. The Company requires the customer to ship
the unit back to the factory for diagnosis under all circumstances. In such event, the Company may, at its
own discretion, decide to provide the customer with a substitute unit which may be sent to the customer
either from the Company’s factory or from an authorized representative or distributor from their inventory. All
expenses related to the shipment of defective units back to the Company or the provision of a substitute unit
to the customer are the responsibility of the customer. This expense may include, but is not limited to,
freight, insurance, Customs clearance, and duties. All expenses related to the shipment of repaired units
back to customers (or the provision of a new unit to the customer) will be borne by the Company.
Product Upgrade Policy
From time to time, the Company makes product upgrades to add or enhance the performance of the
products. Customers of a particular product being issued an upgrade will be notified either by the Company
directly or through its authorized representatives or distributors. Customers who have purchased an annual
upgrade policy will receive all upgrades during the calendar year free of charge. Customers who did not
purchase the annual upgrade policy may purchase each unit upgrade individually. The annual upgrade
policy can be purchased at any time. Regardless of whether the upgrade policy is purchased, the Company
will make reasonable efforts to notify all customers of all available upgrades.
Equipment Repair and Warranty
Repair costs of products not covered under this warranty are paid for by customers. Customers are
responsible for the cost of shipping the products to the Company located at: 240 Dr. MLK Jr. Blvd., Newark,
NJ 07102, USA. All products repaired by the Company will continue to be warranted against defects in
material and workmanship for its installed life at the original end user.
Limitations
The Company's warranty does not extend to (A) The Company's products subject to (i) improper installation,
connection, operation, maintenance, or storage; (ii) accident, damage, abuse, or misuse; (iii) abnormal or
unusual operating conditions or applications outside the specifications for the product; (iv) a purpose or
application in any way different from that for which the products were designed; or (v) repairs conducted by
persons other than the Company employees or an authorized representative or distributor; (B) Equipment
and products not manufactured by the Company. Such equipment and products may be covered by a
warranty issued by the respective manufacturer. This warranty is in lieu of any other warranties, express or
implied, including without limitation, any warranty of merchantability or fitness for a particular purpose, and is
in lieu of any and all other obligations or liability of the Company. Under no circumstances shall the
Company be liable for any accidental or consequential damages or for any other loss, injury, damage, or
expense of any kind including loss of profits arising hereunder. To the extent any court, arbitration panel, or
other governmental body of competent jurisdiction shall declare any provision of this warranty invalid or
unenforceable by reason of a rule of law or public policy, all the other provisions hereof shall remain in full
force and effect.
1 V4.17,November 26, 2002
1.0 INTRODUCTION
The TTC-1000, Transformer Temperature Controller is a mission specificprogrammable controller that measures up to two different probe temperatures,load and calculated winding temperature. The user can program four (4)independent outputs based on the state of pre-programmed temperature setpoints, time set points, load set points or the outputs themselves. The controllercan measure any two of top oil, winding, LTC tank, or ambient temperature toaccuracy of ± 1 ºC and does not require calibration. Calculated windingtemperature is based on the methods of ANSI C57.91 and uses measured top oiltemperature and load current.
The outputs can be used to:
• Control cooling fans and pumps.
• Provide high temperature, LTC condition, and cooling system performancealarms.
• Provide a trip output.
The TTC-1000 is substation hardened and designed to operate over a widetemperature range of –35 to 85 ºC suitable for installation in outdoor cabinets.
The TTC-1000 contains many features including:
• Measures temperature from 0 to 160 ºC.
• Does not require calibration.
• Optional 0-1 or 4 - 20 mA analog outputs.
• Optional dual probe version for top oil and the heated well.
• Optional aux CT input for calculated winding temperatures.
• Load pickup set points for early activation of cooling based on suddenincreases in load.
• Differential temperature set point control for LTC condition monitoring.
• Universal probe kit includes thermo well fitting adapters and probe sleeves.
• Optional magnetic mount temperature probe when a thermo well is notavailable.
• Reports Min and Max Temperatures, time stamped with date and time.
• Periodic exercise of cooling fans.
• Automatic swapping of lead and lag fan banks.
• Four independent temperature set points per probe.
2 V4.17,November 26, 2002
• Cooling system performance monitor to alarm when cooling is commandedbut the current draw of the cooling fans or pumps is outside a specifiedrange.
• Four scheme logic programmable form C relay outputs, all trip duty rated.
• Dedicated programmable form B alarm relay.
• Remote/Local Comms through RS-232, no special software required.
• Same unit operates from 38 to 160VDC or 120VAC and is immune toreversal of battery voltage polarity.
• Available in either compact panel mount or a 304 Stainless Steel NEMA 4Xenclosure.
• Optional DNP3.0 Level 1 communications for reading analogs plus statusand remotely commanding cooling.
Each TTC-1000 is burnt-in for a total of 48 hours prior to shipping and comeswith a lifetime warranty.
3 V4.17,November 26, 2002
2.0 PRODUCT DESCRIPTION
The following section describes the front panel display, indicators, and switches,connection points, mounting, physical size and panel cutout requirements
2.1 Controls & Indicators
Figure 2.1a and 2.1b show the front panel displays, indicators, and switches forboth panel mount and NEMA 4 versions:
Figure 2. 1a: Front Panel, Panel Mount Version
Figure 2.1b: Front Panel, NEMA 4 Version
!!!! """" #### $$$$ YES NO
ACTIVE
ALARM
RS-232
CLEAR WINDOW NO TEXTURE
Advanced Power Technologies
TTC-1000
654321 7 8
10
9
!!!! """" #### $$$$ YES NO
ACTIVE
ALARM
RS-232
CLEAR WINDOW NO TEXTURE
Advanced Power Technologies
TTC-1000
654321 7 8
10
9
4 V4.17,November 26, 2002
UP arrow button for navigating forward into menu categories andincreasing settings.
DOWN arrow button for navigating backward into menu categories anddecreasing settings.
LEFT arrow button used for moving to the next character to the left whenchanging settings.
RIGHT arrow button used for moving to the next character to the rightwhen changing settings.
YES button is used to enter a menu category, request to change a setting,and acknowledge a setting change.
NO button is used to leave a menu category or abort a setting change.
ACTIVE indicator is a green LED that illuminates when power is applied.
ALARM indicator is a red LED that illuminates whenever an alarmcondition is present. Alarms can be caused by a failure detected in theelectronics, or a broken temperature probe. In NEMA 4 mounting models,this indicator will flash when using the light activated Min/Max resetfeature.
16 character by 2 line Liquid Crystal Display.
9 pin 15KV ESD protected RS-232 interface.
1
2
3
4
5
6
7
8
9
10
5 V4.17,November 26, 2002
2.2 Connections
Figure 2.2 shows the rear panel of the TTC-1000.
Figure 2.2a: Rear Panel Connections, Panel Mount (Analog Output)
TB2 temperature probe, analog output, alarm relay output connector for aplug-in standard 12 position 5.08 mm compression style terminal block.Mating terminal block supplied with each unit.
TB1 4 position terminal block for station battery or AC power input andoptional aux CT input. Uses 6-32 screws.
TB3 12 position terminal block for output relay contact connections. Uses6-32 screws.
6-32 stud for connection of chassis ground.
6-32 stud for connection of the temperature probe cable shield drain wire.
1
2
3
4
5
12Power
34Aux CT
OUT1OUT2OUT3OUT4GND
PROBE #1
SHIELD
TB1TB2
TB3
1 2
5
3
4
COM
TMP
REF
PROBE #2
COM
TMP
REF
+ -A1
+ -A2 ALARM
6 V4.17,November 26, 2002
Figure 2.2b: Rear Panel Connections, Panel Mount (DNP3.0 Version)
TB2 temperature probe, RS-485 Transceiver connections (A&B), alarmrelay output connector for a plug-in standard 12 position 5.08 mmcompression style terminal block. Mating terminal block supplied with eachunit.
TB1 4 position terminal block for station battery or AC power input andoptional aux CT input. Uses 6-32 screws.
TB3 12 position terminal block for output relay contact connections. Uses6-32 screws.
6-32 stud for connection of chassis ground.
6-32 stud for connection of the temperature probe cable shield drain wire.
1
2
3
4
5
12Power
34Aux CT
OUT1OUT2OUT3OUT4GND
PROBE #1
SHIELD
TB1TB2
TB3
1 2
5
3
4
COM
TMP
REF
PROBE #2
COM
TMP
REF
ALARMGND
A B GND
7 V4.17,November 26, 2002
Figure 2.3: NEMA 4 Connections
TB2 temperature probe, analog output, alarm relay output connector for aplug-in standard 12 position 5.08 mm compression style terminal block.Mating terminal block supplied with each unit.
1
4
3
!!!! """" #### $$$$ YES NO
ACTIVE
ALARM
RS-232
CLEAR WINDOW NO TEXTURE
Advanced Power Technologies
TTC-1000
123456789101112
AlarmA2A1REF
TNF
COM
REF
TMP
COM
1234
PowerAux CT
Probe 2Probe 1
N OCN C
OUT1OUT2
3
4
2
1
N C C N ON C C N ON C C N O
OUT3OUT4
TB4A B
D O/RI
D O/RI
2-WireRS-485
TB3TB2
TB1
5
8 V4.17,November 26, 2002
TB3 4 position terminal block for station battery or AC power input andoptional aux CT input. Uses 6-32 screws.
TB1 12 position terminal block for output relay contact connections. Uses6-32 screws.
M6 stud for connection of the temperature probe cable shield drain wiresand chassis ground.
TB-4 2 position terminal block for half duplex RS-485 interface for DNP3.0
Figure 2.4 below shows the connection diagram for the TTC-1000.
2
3
4
5
9 V4.17,November 26, 2002
Figure 2.4: Connection Diagram
It is noted that probes can be supplied from lengths of 10 foot to 250 feet. Whenusing existing substation wiring with probe lengths less than 250 feet, it isimportant to connect the probe’s shield drain wire to the shield the cable andobserve that the total wiring length does not exceed 250 feet. Also it is importantto ensure that the TTC-1000’s chassis is grounded to a point close to where theshield drain wire terminates as shown in Figure 2.5.
TTC-1000
3
2
1
3
4
11
10
9
8
7
6
5
4
12
11
10
9
8
7
6
5
1
2
3
12
TB2
R E F
C O M
T M P
Power In38 to 160VDC or 120VAC
+
-Analog Output, A1 (opt ional)**
+
-
N C
C O M
N O
N C
C O M
N O
N C
C O M
N O
N C
C O M
N O
O U T 4
O U T 1
O U T 2
O U T 3
Temperature ProbeTTC-PROBE-01-XXX
Ref Resistor
Sensor
2
3
4
5
6
7
8
9
1
DB9
RS
232
GROUND
Rx
Tx
N/C
N/C
N/C
RTS
CTS
WHT
RED
BLK
Temperature Probe
TTC-PROBE-01-XXX
Ref Resistor
Sensor
WHT
RED
BLK
Probe #1
Probe #2 (opt ional)
Analog Output, A2 (opt ional)**
1
2
N C
C O MA L A R M
R E F
C O M
T M P
4Aux CT input0 to 10 A
1 2
A B
TB4
RS-485DNP3.0 *
NOTES:* ONLY ON DNP3.0 NEMA UNITS
** FOR DNP3.0 PANEL MOUNTUNITS, TERMINALS 4 & 6 ARETHE A & B TERMINALS FORTHE RS485 TRANSCEIVER
TB3 (Panel Mtg)TB1 (NEMA 4)
TB1 (Panel Mtg)TB3 (NEMA 4)
10 V4.17,November 26, 2002
Figure 2.5: Temperature Probe Shield Grounding
Figures 2.6 below show the outline of the Transformer Temperature Probe:
Figure 2.6 : Transformer Temperature Probe
12Power
34Aux CT
OUT1OUT2OUT3OUT4GND
PROBE #1
SHIELD
TB1TB2
TB3
COM
TMP
REF
PROBE #2
COM
TMP
REF
+ -A1
+ -A2 ALARM
TemperatureProbe
Probe DrainWi re
Substat ionCable
Cable'sDrain Wire Local
Ground Bus
3/8 DIA x 3 inLNG SS Probe
Three AdapterFitt ings:3/8-NPT Female x7/8-14 UNF,1/2-NPT,3/4-NPT
Right AngleWater Tight 3/8-NPT Strain Relief
3 ConductorTeflon Cable
11 V4.17,November 26, 2002
2.3 MountingFigure 2.7 below shows the physical dimensions and panel cutout requirements.
Figure 2. 7: Panel Mount Version Physical Dimensions and Panel Cutout
SetScrew
!!!! """" #### $$$$ YES NO
ACTIVE
ALARM
RS-232
CLEAR WINDOW NO TEXTURE
Advanced Power Technologies
TTC-1000
5.70 in.
2.83 in.
6.10 in.
2.63 in.
0.32 in.
5.35 in.
2.65 in.
0.52 in.
12 V4.17,November 26, 2002
Figure 2.8: NEMA 4X Mounting
Figure 2.8 above shows the physical dimensions of the NEMA 4X Mountingenclosure.
Figure 2.9: Retro fit Mounting Bracket
Figure 2.9 shows the outline drawing for the Retro fit Mounting Bracket,P/N:80001000126, constructed from 1/8” THK 5052 Aluminum
3/4 - NPTCable Fitt ings
Lexan Window
0.0000.000
3.312
1.500
1.750
12.75
Oblong0.312 X 0.500
5.00
1/2 - NPT Cable Fitt ing
3.500 5.25
Ground Stud1/4-20x1/2
7.00
0.000
2.375
9.250
14.000
0.000
5.000
6.000
7.000
12.628
13.375
1.000
2.122
7.1228.250
Ø 0.51610 PLACES
4.250
10.753
0.000 2.000
Ø 0.3124 PLACES
0.625
45.0°2 PLACES
13 V4.17,November 26, 2002
2.4 Specifications
Power Supply Input Operating Range:
38 VDC to 160 VDC or 120VAC ±10%, 3 Watts max
Operating Temperature Range:
-35 °C to +85 °C
Temperature Measurement Range:
0 °C to +160 °C
LTC Differential Temperature Measurement Range:
-20 to +20 °C
Temperature Measurement Accuracy:
Average error over the entire measurement range of ± 1 °C; absolute error atany temperature ± 1.5 °C
Aux CT Input:
0 to 10 A. Measurement accuracy ± 3.0% at 50 or 60 Hz and +/- 6% at 25 Hz.CT ratio 3000:1
Output Contact Rating:
30 amps make for 250 msec.
10 amps continuous at 230VAC
0.4 amps break at 160VDC. See Section 4.3 for note on breaking under load
Alarm Contact Rating:
0.15 amp continuous at 160VDC
Analog Output:
Selectable, 0 to 1 mA or 4 to 20 mA current source referenced to chassisground
Maximum load 9,500 ohms for 0 to 1 mA and 450 ohms for 4 to 20 mA
Dimensions:
Panel Mount: 5.32” W x 2.61” H x 6” D
NEMA 4X: 10” H x 6” W x 3.25” D
Surge Withstand/Fast Transient:
Relay outputs, and station battery inputs: ANSI C37.90.1
14 V4.17,November 26, 2002
EMI Withstand:
ANSI C37.90.2
Dielectric Withstand:
3000 VDC for 10 seconds
Electrostatic Discharge:
IEC 801-2
Timers:
Output and Load Pick Up Timer: 0 to 255 seconds (actual minimum delay 32msec)
15 V4.17,November 26, 2002
2.5 Part Number Details
TTC- 1000- w x y
Panel Mounting 0
NEMA 4X Enclosure 3
Single analog output
Dual analog output
2
3
1
2
3
4
Single Probe
Dual Probe
AUX CT, Single Probe
AUX CT, Dual Probe
TTC- PROBE- 0 t -zzz
Probe lead length, 10 to 250 ft
RS485w/Dnp3 Level 1 5
1Universal Thermowell Probe
2Magnetic Surface Mount Probe
No telemetry outputs 0
NEMA 4X with Heater 4
16 V4.17,November 26, 2002
3.0 INSTALLATION & USE
The following section gives information on initial hookup of power and thetemperature probes along with an introduction to the TTC-1000’s features.
3.1 Power Hookup
The TTC-1000 can be powered from either DC substation battery betweenvoltages of 38 to 160 VDC or from AC voltage of 120 ±10% VAC. Power isconnected to terminals 1 and 2 of barrier style terminal block TB1. The TTC-1000is not sensitive to polarity because it uses a bridge rectifier on the power input.This feature eliminates the risk of damage due to the reversal of power applied tothis input.
NOTE: It is highly recommended that the chassis of the panel mount unit orNEMA 4 enclosure be bonded to ground. It is especially important toground the unit when operating from 120 VAC.
3.2 Temperature Probes
The TTC-1000 can be equipped with either one or two probes. Each probe kitcomes with a three thermometer well adapter fittings: 7/8-UNF (ANSI/IEEE C57thermometer well), ½-NPT and ¾-NPT and three probe sleeves: 0.481, 0.625and 0.675 OD. The probes are designed for direct exposure to oil.
A magnetic mount probe (P/N: TTC-PROBE-02-xxx) is available for surfacemounting to the LTC or transformer tank when a thermo well is unavailable.
Temperature probes are interchangeable and do not require calibration. Thetemperature probes and measurement circuitry are intrinsically accurate to thestated accuracy specification. The probe leads are connected to a plug gablecompression style terminal block. A terminal block is supplied with each unit andplugs into TB2.
The probes make use of a right angle snap elbow rated to a pressure of 150PSIG. To install the probe into the thermo well:
1. Select the appropriate thermo well adapter fitting and either wrap the malethreads with Teflon tape or coat with suitable pipe dope compound. Oncethe male threads are prepared, thread the adapter fittings into the thermowell.
2. If the probe well’s ID is greater than 0.390 select the appropriate probesleeve and slide over the probe. Tighten the set screw with theaccompanying Allen Key.
3. Slide the probe into the thermo well as far as it will go.
4. Ensure that the snap elbow fitting is fully open. Apply Teflon tape to themale threads of the snap elbow fitting. Thread the snap elbow into thefemale threads of the thermo well adapter fitting.
17 V4.17,November 26, 2002
5. Close the elbow, forming a 90 degree right angle. Tighten the domedstrain relief until the insert is tight against the probe cable.
NOTE: For dual probe units, you must use both temperature probes forproper operation. The unit will continuously alarm if you fail to use bothprobes.
The probe leads are color-coded and are inserted into the terminal block in thefollowing sequence:
Probe Panel Marking Wire Color Terminal #
1 COM White 12
1 TMP Red 11
1 REF Black 10
2 COM White 9
2 TMP Red 8
2 REF Black 7
After connecting the probe or probes and verifying that they are measuringtemperature, you can choose one of four following names for each probe:
1. TOP OIL
2. WINDING
3. AMBIENT
4. LTCDIFF
5. BOTMOIL
NOTE: The MIN/MAX log should always be reset after changing probenames. This is especially critical for the LTCDIFF as its range is differentfrom the TOP OIL, WINDING, BOTMOIL and AMBIENT temperatures.
3.3 Settings
Settings can be made either through the front panel or using a PC equipped withterminal emulation software. Proper operation of the TTC-1000 has been verifiedwith both HyperTerminal and Procomm. For settings through a PC you will needa female to male DB-9 null modem cable. The TTC-1000 is fixed to communicateat 9600 bits/sec with 8 bits, no parity and one stop bit.
For details on settings through the front panel consult section 5.3 and for settingsthrough your PC consult section 6.3.
18 V4.17,November 26, 2002
3.4 Temperature Set Points
The TTC-1000 has four independent temperature set points per temperatureprobe and four calculated winding set points. Dual probe units with calculatedwinding temperature have a total of 12 temperature set points. Each set pointhas its own pick up and drop out temperatures. The pick up and drop outtemperature can be set at different temperatures and allows the controller tooperate as either an under or over temperature controller. The following twoequations describe how the controller reacts depending on the setting of the pickup and drop out temperature:
If SPpn Pick UP > = SPpn Drop Out then operate as over temperature
If SPpn Pick UP < SPpn Drop Out then operate as under temperature
Where: p = Probe # (1 or 2) & n = Set point # (1, 2, 3, 4)
The over temperature set point is ideal for handling the pickup of fans or pumpsas well as generating over temperature alarms and trip signals. The undertemperature feature is useful to block the operation of pumps at lowtemperatures.
Figure 3.1 and 3.2 show when the SP picks up and drops out for when thecontroller is configured to operate in the over and under temperature modesrespectively.
19 V4.17,November 26, 2002
Figure 3.1: Over Temp Operation
SPpn Pick UpTempera ture
SPpn Drop OutTempera ture
Temperature
Time
SPpn
20 V4.17,November 26, 2002
Figure 3.2: Under Temp Operation
Once a set point has picked up, it will not drop out until the pre-programmedconditions are met. This feature is especially useful to allow the fans to continueto run until the top oil temperature drops to some lower temperature.
Each output can be controlled directly by a temperature set point. The flexibleprogrammable logic allows simple configuration to handle more complicatedtasks.
You will need to set pickup and drop out temperatures for each set point youwish to use. Once set, temperature set points take up to 16 seconds to takeaffect. Once you have established the pickup and drop out settings you are readyto assign the set points to a specific output. A set point will not pickup an outputuntil you assign it to OUT1, OUT2, OUT3, or OUT4. Consult Section 5.4 or 6.3for programming pickup/drop out temperatures and assignment of temperatureset points.
SPpn PickUp
Temperature
SPpn Drop OutTemperature
Temperature
Time
SPpn
21 V4.17,November 26, 2002
3.5 Calculated Winding Hot Spot Temperature
Models equipped with the Aux CT input are supplied with a split core CT which issnapped over the secondary leads from the bushing CT. The winding hot spottemperature is calculated using the measured load current and top oiltemperature along with certain settings including the primary CT’s ratio, hot spotrise over top oil temperature at rated load, rated load current, winding rise timeconstant and if the transformer cooling is directed FOA or FOW. The theory andmethod behind the calculation of winding temperature will be discussed inSection 4.4. The ranges for these settings are:
Setting Setting Range Comments
CT Ratio 1:1 to 9999:1 Can be set to 0
Hot Spot Rise over Top Oil 0 to 99 ° C
Rated Load Current 0 to 65,535 A
Winding Rise Time Constant 0 to 999 minutes Minimum 32msec
m Constant 0.8 or 1
There are also four calculated winding hot spot temperature set points WSP1,WSP2, WSP3, and WSP4. Each winding set point has it’s own pickup anddropout temperatures and operate the same as the probe temperature set pointsdescribed in Figures 3.1 and 3.2. Each set point can be assigned to any of thefour outputs using the programmable logic.
NOTE: Changing the Winding Rise Time Constant while a timeout is inprocess will not reset the timer.
The calculated winding hot spot temperature may be periodically verified byinjecting 5.0 Amps RMS into the primary of the Aux CT. A parameterWINDINGCAL is provided to compare it against the measured windingtemperature. WINDINGCAL may be viewed by pressing the ! or " buttons untilVIEW is displayed. Next press the YES button followed by the " button. Returnto view the current temperature by pressing the NO button followed by pressingthe " button. To view the winding temperature press the # button once forsingle liquid probe models and twice for dual liquid probe models.
NOTE: You may consider changing the Winding Rise Time Constant beforeinjecting the test current. If not, please wait for the winding temperature tostabilize.
22 V4.17,November 26, 2002
3.6 Time Set Points
The time set points allow the user additional flexibility to activate events betweenspecific times. For example if it is desirable to periodically exercise a bank of fansevery day, the user can set the device to pick up an output at 03:00 hours anddrop out at 4:00 hours. Time set points can be used in conjunction with thetemperature set points to control an output. Therefore, when controlling a bank offans for the purpose of exercising them daily, it is necessary to OR (+) thetemperature set point to the same output as the time set point. Time set pointsare by default, OR’ed to any other operand assigned to the same output.
When using time set points in conjunction with temperature set points for thepurpose of picking up a cooling bank in fail-safe mode, both set points should beassigned as usual. To operate in fail-safe, apply the INVERT output to thespecific output.
3.7 LTC Condition Monitoring
The TTC-1000 has a single set point that the user can employ for LTCconditioning monitoring. The LTC differential, or LTCDIFF, is the mathematicaldifference between the LTC tank and top oil temperatures and therefore is onlyavailable in dual temperature probe units. The range of the LTCDIFF is from –20to +20 ºC.
NOTE: When using LTC condition monitoring, it is important to rememberto name one of the probes LTCDIFF. Evaluation of the LTC set point is notdone unless one of the probes is named LTCDIFF.
Figure 3.3 illustrates how the LTC differential set point operates for LTC conditionmonitoring.
23 V4.17,November 26, 2002
Figure 3.3: LTC Differential Set Point Operation
The TTC-1000 uses an LTC pickup timer settable from zero to 999 minutes tosupervise the LTC set point. The above example shows that the LTCDIFF setpoint does not pickup until after the timer is complete. If the differentialtemperature drop down below the pick up temperature while the timer is inprogress, the timer will reset. This timer allows the LTCDIFF set point to “ride”through daylight heating and hence permits a more sensitive setting. The aboveexample shows that the LTC set point does not drop out because the differencebetween the LTC Tank temperature and the Top Oil temperature does not dropdown to the LTCDIFF drop out temperature set point.
NOTE: The LTCDIFF temperature displayed is the calculated differential.The corresponding analog output tracks this differential temperature.
The LTCDIFF temperature is designed to read negative, because sometimes theLTC tank runs cooler than the top oil temperature. It is recommended that youmonitor the LTCDIFF temperature for a period of time to determine the normaloperating differential for the transformer. A good rule of thumb is to set theLTCDIFF pickup temperature from 3 to 7 degrees higher than the observedoperating differential. The sensitivity of this setting can be improved through theuse of the LTC pickup timer (LTCPUTMR) setting. The recommended setting for
Temperature
Time
LTC Set Point
LTC DIFF Pickup
LTC Tank Temperature
Top Oi l Temperature
LTC Tank Temp - Top Oi l Temp
LTC DIFF Drop Out
LTC Pickup Timer
24 V4.17,November 26, 2002
the LTCPUTMR is between 360 to 480 minutes ( 6 to 8 hours ) to ignore theaffects of daylight heating on a lightly load transformer. The LTCPUTMR can beset up to 999 minutes ( 16 hours 39 minutes ).
To use this feature you must first make sure one of the two probes has beennamed LTCDIFF. Next, program the LTCDIFF PU (pickup) and LTCDIFF DO(drop out) temperatures. As mentioned earlier, it is a recommended that theLTCDIFF temperature be monitored to determine the transformer’s normaloperating point. Finally, the LTCPUTMR can be set once the transformers normaloperating condition is determined. Setting the LTCPUTMR to zero permits theLTCDIFF set point to pickup as soon as the LTCDIFF PU temperature isreached. Setting the LTCPUTMR to some time other than zero will delay thepickup of the LTCDIFF set point as long as the LTCDIFF temperature is equal toor above the LTCDIFF PU temperature.
NOTE: The LTCPUTMR will not change while in progress. New settings willtake effect after the set point drops out or if the LTCDIFF temperature wereto drop below the LTCDIFF PU temperature while the timer is in progress.
Once you have established the pickup and drop out settings you are ready toassign the LTC set point to a specific output. This set point will not pickup anoutput until you assign it to OUT1, OUT2, OUT3, or OUT4. Consult Section 5.4and 6.3 for programming LTCDIFF pickup/drop out temperatures and assignmentof LTC set points.
NOTE: LTC Condition monitoring feature is not available in single probeversions.
3.8 Load Set Points
Load current is measured with an external 3000:1 snap on aux CT supplied withmodels equipped with this feature. The aux CT is not intended for directexposure to the elements and should be installed within a NEMA 4 enclosure.
Units equipped with this feature have two load set points. Apply these set pointsto activate cooling earlier based on a sudden increase in load current due tonormal switching operations. Each set point has a load pickup timer settable from0 to 255 seconds. The timer operates to block inadvertent load set point pickupdue to fault conditions or inrush.
Each load set point has it’s own pickup and drop out current setting. Each settingis adjustable from 0 to 9.9 Amps in 0.1 Amp increments. These settings arebased on the primary current measured by the aux CT.
NOTE: When load current present, it is important to set the load dropoutset point before the load pickup set point. If load pickup set point is setfirst, the load set point may be already picked up when this setting is madeand will not drop out.
25 V4.17,November 26, 2002
The load set points can also be used to generate an alarm should the controllercommand cooling and the cooling system is drawing too little or too muchcurrent. For example, if the pickup current is set lower than the drop outtemperature, the set point operates as an under load detector. Conversely,setting the pickup point higher than the dropout point allows the set point tooperate as an overload detector. Setting one set point for under load and theother as overload permits detection of the cooling system’s load current “sweetspot”.
NOTE: The calculated winding temperature feature will not functioncorrectly when monitoring the cooling system’s load current.
3.9 Programmable Logic
Any of the operands (temperature set points, time set points, LTCDIFF set pointsor the outputs themselves) can be assigned to OUT1, OUT2, OUT3, or OUT4.When assigning the temperature, LTCDIFF, and output operands you have theoption of inversion (!) and either logically AND’ing (*) or OR’ing (+) the operandwith other assigned operands to control a specific output. For example, you canassign two temperature set points with the AND (*) operator to OUT2. When bothoperands are picked up at the same time, the OUT2 picks up, after a settablepickup timer has timed out. If the OUT2 pickup timer is set to zero, OUT2 willpickup in 32 milliseconds once both temperature set points are picked up. OUT2will remain picked up until either of the two temperature set points drop out.
Using the inversion operator with a temperature set point programmed for overtemperature, is particularly useful when it is desirable to run the fans if thecontroller becomes de-energized. When using the inversion operator for thispurpose, it is necessary to use the B contact of the output relay.
Time set points are also operands that can be assigned to OUT1, OUT2, OUT3or OUT4. However, time set points do not use the inversion (!) operator and arealways assigned with the OR (+) operator.
An INVERT setting is available for each output to allow the entire equation to beinverted. This is especially useful when using temperature and time set pointstogether in fail-safe.
NOTE: Do not use the inversion operator on individual set points whenremote control through DNP3.0 and fail-safe cooling control is desired. TheINVERT setting must be used on each output requiring fail-safe coolingcontrol when remote cooling control through DNP3.0 is required. The useof the inversion operator on a set point will not be recognized by theremote control functions resulting in the cooling to be de-energized.
26 V4.17,November 26, 2002
The following are some applications examples:
Commanding the cooling fans:
The simplest application is using an output to control a cooling bank. First,program the Pickup and Dropout temperature set point. Second, assign the setpoint to an output as follows:
Using the LCD: SPkl ∗ OUTn where kl= 11,12,13,21,22,23 and n=1,2,3,4
Using RS232: kk/0/0/n where k=Parameter # and n=1,2,3,4
The Boolean equation to control the same bank from two different set points isexpressed as follows:
OUTn = Temperature Set Pointk1l1 + Temperature Set Pointk2l2
Using the LCD: SPk1l1+ OUTn where k1l1=11,12,13,21,22,23 and n=1,2,3,4
SPk2l2+ OUTn where k2l2=11,12,13,21,22,23 and n=1,2,3,4
Using RS232: kk1/0/1/n where kk1=Parameter # and n=1,2,3,4
Kk2/0/1/n where kk2=Parameter # and n=1,2,3,4
To control a bank in fail-safe, simply invert each setting as follows:
Using the LCD: !SPkl ∗ OUTn where kl= 11,12,13,21,22,23 and n=1,2,3,4
Using RS232: kk/1/0/n where k=Parameter # and n=1,2,3,4
NOTE: Do not use the inversion operator on individual set points whenremote control through DNP3.0 and fail-safe cooling control is desired. TheINVERT setting must be used on each output requiring fail-safe coolingcontrol when remote cooling control through DNP3.0 is required. The useof the inversion operator on a set point will not be recognized by theremote control functions resulting in the cooling to be de-energized.
To control a bank using two set points in fail-safe:
Using the LCD: SPk1l1+ OUTn where k1l1=11,12,13,21,22,23 and n=1,2,3,4
SPk2l2+ OUTn where k2l2=11,12,13,21,22,23 and n=1,2,3,4
Using RS232: kk1/0/1/n where kk1=Parameter # and n=1,2,3,4
Kk2/0/1/n where kk2=Parameter # and n=1,2,3,4
Use the INVERT OUTn setting to cause the output relay to drop out when eithertemperature set point is achieved. The resulting Boolean equation is:
OUTn = !(Temperature Set Pointk1l1 + Temperature Set Pointk2l2)
Periodic exercise of cooling fans:
Use a time set point with the temperature set point, controlling the cooling fans,to exercise the fans on a daily basis. This is especially useful in areas where you
27 V4.17,November 26, 2002
might be running the fans continuously during the cooler months of the year. TheBoolean equation to accomplish this task is:
OUTn = Time Set Pointm + Temperature Set Pointkl
Therefore, the cooling fans will come on when either when the over temperaturecondition is achieved or the time of day is in between 02:00 to 03:00 hours.
To program the controller simply assign the time and temperature set points asfollows:
Using the LCD: 02:00 to 03:00 > OUTn
SPk + OUTn
Using RS232: mm/02:00/03:00/n where mm=parameter # and n=1,2,3,4
Kk/0/1/n where k=parameter # and n=1,2,3, 4
To operate the output in fail-safe, just invert the expression using the outputINVERT setting. Remember to use the B contact of the output relay.
Cooling Fan Alarm:
This example shows how to generate an alarm when cooling is commanded butthe measured current as sensed by the Aux CT is not within a specified range.The Boolean equation for this function is expressed as:
OUTn1 = (Load Set Pointm1 + Load Set Pointm2) ∗ OUTn2
First you must program Load Set Pointm1 for an underload condition, that is thepickup current less than dropout, and Load Set Pointm2 for overload. Once theseare programmed the two load set points must be assigned as OR to OUTn1 asfollows:
Using the LCD: LSPm1+ OUTn1 where m1=1,2 and n1=1,2,3,4
LSPm2+ OUTn1 where m2=1,2 and n1=1,2,3,4
Using RS232: mm1/0/1/n1 where mm1=Parameter # and n1=1,2,3,4
mm2/0/1/n1 where mm2=Parameter # and n1=1,2,3,4
Then assign the output, OUTn2, commanding cooling to OUTn1 as follows:
Using the LCD: OUTn2 ∗ OUTn1 where n1=1,2,3,4 and n2=1,2,3,4
Using RS232: n1/0/0/n2 where n1=Parameter # and n2=1,2,3,4
It is noted that n1 cannot equal n2.
3.10 Manual Output Control
The TTC-1000 supports direct manual control of any output relay directly fromthe front panel. When commanded on the relay picks up and commanded off therelay drops out. Manual control is important for two reasons. First, it gives the
28 V4.17,November 26, 2002
user a simple method to test the connections to the output relays whencommissioning the unit. Second, it gives the user the ability to manually overrideboth automatic or remote control should the operator desires to commandcooling on a continuous basis. It can also be used to prevent an output frompicking up.
Manual mode can be exerted by communicating through the RS-232 interface,but it is impossible to control the output relay using this method. This settingshould only be used when it is desired to block remote control of a specific outputrelay. Also, the TTC-1000 will leave the output relay whatever state it happenedto be at the time manual control is exerted through the RS-232 interface.
The TTC-1000 will cause the Device Alarm contacts to pick up when an output isput into the manual mode. In addition the ALARM LED on the front panel willilluminate. The user can block this alarm by using the manual mode alarmdisable setting shown in Sections 5.3 or 6.3.
Once in Manual Mode any output relay will be de-energized if power is removedupon re-energization. The output remains in Manual Mode and cannot be re-energized without physically going to the device and turning the output on in themanual mode.
3.11 Device Alarm
The TTC-1000 monitors four conditions: processor (DEVICE), temperature(TPROBE), and manual mode (MANUAL). The TTC-1000 allows the user toenable or disable any or all of the alarm conditions through programming. Theuser can also program how each output reacts when an alarm occurs.A DEVICE alarm occurs anytime the microprocessor detects a failure in any ofthe peripheral hardware including the non-volatile E2 memory, the real time clock,analog outputs or corruption of stored data.
The TPROBE alarm is generated anytime the processor is unable to complete anA/D conversion. This can be due to a discontinuity in the leads connected to thetemperature probe or with any of the internal circuitry associated with the analogto digital conversion process. All temperature set point evaluations aresuspended until the alarm condition is cleared.The MANUAL alarm occurs anytime any of the four outputs is programmed fromAuto Mode to Manual Mode, independent of whether the output is picked up ordropped out. The Manual Mode alarm is for reporting only and does notsupervise any of the control functions.
The TTC-1000 allows you to program how an output will react whenever there isa DEVICE or TPROBE alarm. There are three (3) ways an output can reactwhenever there is a DEVICE or TPROBE alarm:
1. Unchanged (UNCHG): the output remains as it was prior to thealarm.
29 V4.17,November 26, 2002
2. Picked Up (PCKUP): the output picks up when alarm occurs.
3. Supervised (SUPVS): the output drops out when alarm occurs.
The TTC-1000 is initially programmed UNCHG for each output.
The user should decide how they wish each output to operate whenever there iseither a DEVICE or TPROBE alarm. For example if OUT1 and OUT2 control twoseparate banks of fans, it might be desirable to have OUT1 and OUT2 pickup assoon as a DEVICE or TPROBE alarm occur. This insures that the fans arerunning even though there might be a device or temperature probe failure.
NOTE: When the outputs controlling cooling fans are in fail-safe, it isnecessary to use the Supervised (SUPVS) setting.
However, if OUT3 is used for a trip signal, it may be desirable to use the DEVICEor TPROBE alarm to supervise OUT3. This will insure that a trip signal is blockedwhenever a DEVICE or TPROBE alarms occur.
Also, if OUT4 is used for a high temperature alarm, it may be desirable for OUT4to remain unchanged if a DEVICE or TPROBE alarm occurs. This will insure thata high temperature alarm continues to be reported.
Please consult Section 5.4 or 6.3 for programming this feature.
3.12 Alternate Fan Banks
The TTC-1000 can be programmed to alternate the energization between twooutputs. This feature is particularly useful when it is desirable to insure a fanbank is regularly exercised.
You can choose between seven (7) alternate options:
1. Disabled (DSABL)
2. Alternate between OUT1 and OUT2 (1 – 2)
3. Alternate between OUT1 and OUT3 (1 – 3)
4. Alternate between OUT1 and OUT4 (1 – 4)
5. Alternate between OUT2 and OUT3 (2 – 3)
6. Alternate between OUT2 and OUT4 (2 – 4)
7. Alternate between OUT3 and OUT4 (3 – 4)
As an example, if Alternate between OUT1 and OUT4 is selected, the first timeOUT1 picks up, the output relay associated with OUT1 will pick up. If OUT4 picksup while OUT1 is picked up, the relay associated with OUT4 will pick up.
Once both OUT1 and OUT4 drop out, the next time either OUT1 picks up therelay associated with OUT4 will pick up. If at sometime in the future OUT4 picks
30 V4.17,November 26, 2002
up when OUT1 is already picked up, the relay associated with OUT1 will pick up.The cycle repeats when both OUT1 and OUT4 have dropped out.
3.13 Analog Outputs
The TTC-1000 is available with up to two analog outputs configured as currentloops. The source for each analog output can be selected from probe 1 (P1),probe 2 (P2), or calculated winding temperature. The analog output is designedto operate with a series resistance of 9,500 Ohms when set to 0 to 1 mA or 450Ohms when set to 4 to 20 mA.
The analog outputs are connected to terminal block TB2. The terminal marked +is the current source output. The connection marked – is the current transmitter’sreturn and is tied directly to the chassis ground.
NOTE: Connect to the analog outputs through shielded cable. Connect thedrain wire of the shield to one of the ground stud on the rear of the TTC-1000 or inside the NEMA 4 enclosure. Twisted pair cable is recommended.
The analog outputs can be programmed for 0 to 1 mA or 4 to 20 mA. Both analogoutputs are identically programmed. Consult Section 5.4 or 6.3 for programmingthe scaling of the analog outputs.
The scaling of the analog output varies depending on what is being measured.The following table illustrates the scaling dependent on range and the quantitymeasured:
Probe Min Max
0 to 1 mA Range:
TOP OIL, WINDING,AMBIENT, CALC.WINDING
0 mA @ 0 ºC 1 mA @ 160 ºC
LTCDIFF 0 mA @ -20 ºC 1 mA @ +20 ºC
20 to 1 mA Range:
TOP OIL, WINDING,AMBIENT, CALC.WINDING
4 mA @ 0 ºC 20 mA @ 160 ºC
LTCDIFF 4 mA @ -20 ºC 20 mA @ +20 ºC
3.14 DNP3.0 Communications
Units equipped with the optional DNP3.0 communications interface contain aplug-in Communications Processor module. The module contains a separatemicroprocessor to handle all overhead functions associated with the DNP3.0protocol without affecting operation of the transformer cooling control and
31 V4.17,November 26, 2002
monitoring. The module contains a half duplex RS-485 asynchronouscommunications interface capable of supporting multi-drop topologies. RS-485interfaces differ from RS-232 in that RS-485 uses a differential receiver andtransmitter pair. This permits RS-485 links to send and receive data over muchgreater distances as long as some simple rules are followed.
A jumper, J2, can be selectively installed if the TTC-1000 is either the first or lastdevice on the two wire communications bus. Jumper J2 must be installed if theTTC-1000 is either the first or last device on the mult-drop communications bus.Installation of the jumper connects a 120 ohm termination resistor. Termination isvital to reduce reflections which affect proper operation when the length of thecommunications bus is long and/or there are many devices connected. Themodule uses a fail-safe RS-485 transceiver that insures that incorrect operationdoes not occur due to an open or short circuit on the communications bus. Whilethe TTC-1000 is immune from shorted or open communications link, otherdevices may require the use of bias resistors.
NOTE: For panel mount versions, the unit contains the jumper but it is notinstalled. To install jumper J2, the unit must be disassembled. The RelayBoard must be removed to gain access to the Communications ProcessorModule. J2 is located on the Communications Processor Module. It is notedthat an 120 ohm resistor (a carbon or metal film resistor recommended)may be installed externally between rear panel terminals A & B on the plug-in terminal block TB2.
The use of twisted pair wire or cable is essential between nodes of thecommunications bus. Connection of devices on the bus should carefullyconsidered. Every device on the bus must be connected in a daisy chain fashionlike a string of Holiday lights. The devices on the bus should never be connectedin a star configuration. Polarity of the connections are also critical and should becarefully observed and followed. For example, the “A” connection also known asthe TD/RD should be connected to every other node’s “A” connection. Likewisefor the “B” or the not TD/RD line. Figures 2.2, 2.3 and 2.4 identifies theconnections on the TTC-1000.
There are many good references on implementing multi-drop RS-485communication links from the semiconductor divisions of Texas Instruments,National Semiconductor, and MAXIM Integrated Products.
After making the proper connections to the TTC-1000, there are only two settingsthat need to be made: Node Address and Baud Rate. Node Addresses can beany number from 0 to 65535. Please consult the DNP3.0 reference materials assome higher order addresses are reserved for broadcast messages.
Baud Rates can be set to either 1200, 2400, 9600 or 19200. It is recommendedthat both Node Address and Baud Rate settings be made before attempting to
32 V4.17,November 26, 2002
communicate, however these settings can be changed “on-the-fly” withoutpowering down the TTC-1000.
The TTC-1000 implements DNP3.0 Level 1 communications. This includes Class0 polls (Object 60 Variation 1) of analog and binary output points. The TTC-1000supports Object 1 Variation 2 binary outputs. Binary outputs include alltemperature and load set points along with the state of each output relay.Because Variation 2 is supported, the TTC-1000 communicates whether or notan output relay is under manual control by exerting the “forced” status bit forthese points only. The “forced” status bit is located in bit 4 of each binary outputoctet transmitted to the Master. For Analog Outputs, the TTC-1000 supportsObject 30 Variation 4. These are 16 bit signed analog quantities without status.Included in the Analog Output points are all temperatures equipped plus loaddata if available. Also, the TTC-1000 uses two points to identify whether or notthe probe is measuring Top Oil, Heated Well, LTC Differential or Ambienttemperature. This is particularly useful for dual probe units. It is noted that Object1 Variation 2 and Object 30 Variation 4 points cannot be read individually andcan only be read by a Class 0 poll.
In addition, the TTC-1000 supports the remote control of the four output relays.The TTC-1000 supports both direct control (Object 10 Variation 0) and SelectBefore Operate control (Object 12 Variation 1). The TTC-1000 permits the userto command an output relay to pickup. It cannot be used to dropout an outputrelay. If the Binary Input point is turned off, it merely returns the device to localautomatic control. Once the unit accepts the remote control command, the“remote forced” bit will become a logic “1”. The “remote forced” bit will remain alogic “1” until that point is dropped out by the DNP Master.
Remote control can be blocked through the use of the REMOTE BLK setting.Enabling this setting will prevent all output points from picking up through remotecontrol. Also, enabling the REMOTE BLK setting after an output has beencommanded to remotely pickup but before remote control is returned to localcontrol, will cause all output points to revert back to local automatic control. The“remote forced” bit will remain logic “1” until the point is returned back to localautomatic control. Remote control will be immediately re-enabled once theREMOTE BLK setting is disabled.
In addition, local manual control overrides remote control. The user shouldobserve the status of the “local forced” bit in the appropriate Binary Output point,as noted above, before attempting to exert control as the TTC-1000 willremember that the bit has been exerted even though the TTC-1000 is in ManualMode. Once an output is released from Manual Mode, the output will eitherreturn to automatic or remote control. If the point had been commandedremotely, the output will pickup as soon as the field personnel remove localmanual control. This could result in an undesired operation of the specific output
33 V4.17,November 26, 2002
relay. User’s of remote control should always remember to turn off a Binary Inputonce they have turned it on to insure a return to local automatic control. This iswhy Users should observe the “local forced” and “remote forced” bits.
To maintain compatibility with Fail-Safe operation of the cooling system, remotecommanding of cooling operates in conjunction with the INVERT setting for eachoutput. For example, if the INVERT bit is set for OUT1, then the OUT1 relay willdrop out. This is an important point to remember when setting the programmablelogic as Fail-Safe cooling will not be observed under remote control if the userimplements Fail-Safe cooling by assigning a set point using the inversionoperator.
Finally, the user should not expect instantaneous report of updated temperatureand status from the TTC-1000. The use of a separate CommunicationsProcessor does not guarantee instantaneous reporting of data. The philosophy ofimplementation is that the top priority of the Main microprocessor is for controland monitoring and the Communications Processor is to receive potentially high-speed request messages from the DNP Master and to respond to these requestswithout delay. While higher polling rates are possible, it is highly recommendedthat the polling rate be between 1,000 to 10,000 milliseconds, but should be nofaster than 500 milliseconds.
Please refer to the DNP3.0 Profile Document in Section 7.0 for additional detailsand specific definitions of all points supported.
3.15 Heater Option
NEMA 4X Models, TTC-1000-4XX, are equipped with a 13 Watt thermostaticallycontrolled heater and a specially designed vent that allows moisture to escapeand does not allow moisture to re-enter. The heater can be operated from DCvoltages of 38 to 160 or at 120 VAC. For convenience, the heater circuit isconnected to TB3 terminals 1 and 2. However, the user can connect the heaterto a separate power source.
The thermostat turns off the heater circuit when the internal ambient temperaturerises above 86 °F (30 °C) +/-10 °F. The thermostat turns the heater back on at aninternal ambient temperature between 80 to 75 °F.
34 V4.17,November 26, 2002
4.0 THEORY of OPERATION
4.1 Discussion of Operation
The TTC-1000 is a microprocessor-based controller that utilizes a high-speedreduced instruction set (RISC) processor based on the Microchip PIC seriesprocessor. This processor offers significant advantages in speed, flexibility, andbit manipulation capability. The PIC family processor contains many built infunctions including watchdog timer, serial interface, multiple timer/counters, andon-board A/D converter.
The software is written around a real time interrupt which has the benefits ofinsuring that time critical functions are addressed on a regular basis. Figure 4.1describes the overall operation of the TTC-1000’s software.
Figure 4.1: Software Operation
Upon power up the software enters Initialization. In initialization, data registersand I/O ports are initialized. Also, all programmed settings are read from the non-volatile memory and the real time clock is read.
After initialization is complete, the software executes the code within the MainRoutine. While in the Main Routine, if the Real Time Interrupt (RTI) occurs, thesoftware immediately begins to execute the code within the RTI routine. RTI’s are
Initialization
Main Routine
Real Time Interrupt 32 msec
1. Switch Scan 2. A/D Conversion 3. Update Relay Outputs 4. Update timers
1. Display Write 2. Menu Navigation 3 Programmable Logic 4. Set Point Evaluation 5. RS-232 Comms 6. Time & Date Update 7. Alarm Logic 8. Analog Out
35 V4.17,November 26, 2002
generated every 32 milliseconds by the crystal controlled real time clock. It isnoted that evaluation of temperature set points is blocked on initialization untiltemperature data is available. Also, the programmable logic is blocked any timewhile assigning or change of assignment is written to the non-volatile memory.
Updating of the outputs is supervised by any alarm generated as a result of ahardware failure or detection of data corruption. All outputs are forced to the offstate should an alarm generated by an internal hardware failure or corruption ofdata occurs.
36 V4.17,November 26, 2002
Figure 4.2 shows the block diagram of the TTC-1000.
Figure 4.2: Block Diagram
4.2 Temperature Measurement
Temperature measurements are made every real time interrupt. Measurementsare made by using a single ramp technique. Referring to Figure 4.3, first we rampthe capacitor C through the Rref by closing SW1. The capacitor ramps up untilthe threshold established by the Comparator (~2.6V) is met. All during the timethe capacitor charges, the processor counts at a rate of ~100 kHz. The processordischarges the capacitor for a fixed period by closing SW3. Once discharged, thecapacitor is again ramped up through the Positive Temperature Coefficient (PTC)sensor through SW2. Again the processor counts until the comparator thresholdis reached. Once the data is gathered, the processor makes the followingcalculation to compute the value of the PTC sensor:
PTC sensor = (PTC sensor Count/Rref Count) x Rref
Once the PTC sensor value is calculated, the processor indexes through alookup table until the value in the table most closely matches the measured PTCsensor’s resistance. The table index itself is the temperature in ºC.
MICROCONTROLLER
LCD DisplayModule
Front PanelSwitch Matrix
Real TimeClockChip
OUT4
PIC16C63A
ElectricallyErasableMemory
ClockBackup
I2C BUS
Alarm Relay
Analog Out #1
Analog Out #2
DC - DCConverter
+5V
BUFFER
+5V
OUT1
OUT2
OUT3
ESD ProtectedRS-232
Interface
T x
R x
C T S
R T S
TB2
TB1
TB3
BRIDGERECTIFIER
Rref
PTC Sensor
32.768kHz
120VAC orDC Battery
Input
Probe #1
Rref
PTC Sensor
Probe #2
A to D
A to D
D/A
18V
4-20mA
0-1mA
D to I
D to I
2
1
+
-
4
3
PrecisionRectifier
A/DInput
Ext.Aux CT
37 V4.17,November 26, 2002
This technique provides a simple A to D conversion and is unaffected by thetolerance of the integration capacitor, voltage from which the capacitor ischarged, and the Comparator’s reference voltage. By using Rref accurate to±0.1% with a temperature coefficient of 25 parts per million, a PTC sensoraccurate to ±0.1 %, and co-locating Rref with the PTC sensor, temperaturemeasurements are accurate to average error of ±1 ºC at distances up to 250 feet.
Figure 4.3: Temperature A/D Conversion
Because of the high impedance nature of this measurement technique, there isthe possibility of coupling noise from the shield to any of the three measurementleads. This makes these signals ride like a cork in the ocean. Because of therandom nature of noise, taking many samples and taking the average eliminatesthis error.
The TTC-1000 takes 512 individual temperature samples which results in a verystable temperature measurement. It is this averaged temperature that is used forset point evaluation. Average temperature data is updated every 16 seconds.Upon power on, the temperature is not valid for 16 seconds. The temperature setpoint evaluation is blocked during this initial 16 second interval or until validtemperature data is available.
The PTC sensor and reference resistor are encased in a 0.375 OD stainlesssteel tube using high temperature thermally conductive epoxy designed foroutdoors applications or direct immersion in oil. A length of braid connected to
TB2
-+
5V Comparator
C
RREF
(0.1%, 25ppm)
RSEN0.5%
Processor+5V
SW1
SW2SW3
SW1
SW2
SW3
Voltage on C
ComparatorThreshold
RREFCNT
ComparatorThreshold
RSENCNT
Up to250feet
RSEN = RREF X RSEN CNT / RREF CNT Lookup Table Temperature
38 V4.17,November 26, 2002
the cable’s drain wire surrounds the PTC sensor and reference resistors. Thisshield is electrically isolated from the stainless steel tube. It is noted that theprobe has a healthy time constant that prevents quick changes.
4.3 Aux CT Interface
The current measurement circuit consists of four components:
1. External 3000:1 snap on split core current transformer.
2. 301 ohm current shunt.
3. Precision rectifier.
4. Analog to Digital converter internal to the microcontroller.
The circuit is designed for a range of 0 to 10 amps. The precision rectifier allowsthe current shunt to exhibit a low burden while maintaining very good accuracyand linearity. The precision rectifier outputs 0 to 5 VDC to the input of a 10 bit on-board analog to digital converter.
A total of 256 current measurements are taken once every 32 milliseconds toaverage out variations due to noise and short term load fluctuations.
4.4 Calculated Winding Temperature
The steady state winding temperature is calculated based on the followingequation1:
( ) TopOilm
RTOWinding TRatedLoadCTRatioLoadTTU
+∗∗= ∗2/ [1]
Where:
TWindingU = Ultimate calculated winding temperature
TRTO = Hot Spot Rise over Top Oil temperature at rated load
Load = Measured load current
CTRatio = Primary CT ratio
Rated Load = Rated load current
m = 1.0 for directed FOA or FOW, 0.8 for all other cooling
TTopOil = Measured Top Oil temperature
It is noted that the Hot Spot Rise over Top Oil at rated load is not alwaysavailable. In this case we recommend subtracting the Top Oil Rise from theaverage conductor rise at rated load and add between 18 to 20 ºC to thedifference to obtain the hot spot rise over top oil at rated load.
1 ANSI C57.91-1995
39 V4.17,November 26, 2002
To accommodate the transient affect of changing load current, the windingtemperature can be estimated at any point in time by entering the winding timeconstant. Therefore, the displayed winding temperature is calculated as follows:
TopOilt
WindingWindingWinding TeTTtT W
IU+−−= − )1)(()( /τ [2]
Where:
TWinding(t) = Winding temperature at time t
TWindingU = Ultimate winding temperature using equation [1] above
TWindingI = Initial winding temperature using equation [1] above
τW = Winding time constant in minutes
TTopOil = Measured Top Oil temperature
Because data to calculate τ W may not be available, the recommended setting forthe winding time constant is between 5 to 10 minutes.
4.5 Outputs
A ULN2003A Darlington buffer drives the output relays. Each output is userconfigurable for control by the various operands. Operands include the eighttemperature set points (or four for single probe units), the LTC set point, threeTIME set points or any of the four outputs. Through the TTC-1000’s settingfeature, an operand is assigned to a specific output. Assigning of the operandswill be discussed in the Menu and Menu Navigation and RS-232 Section.
Each output has its own pick up timer. This timer can be set from 0 to 255seconds. When set to 0 there will be a built in 32 millisecond delay. If for anyreason during the pick up timeout any of the operands in combination result in achange from being true to false, the timer will automatically reset. Figure 4.3illustrates the operation of the timer.
40 V4.17,November 26, 2002
Figure 4.4: Output Pick Up Timer
Each output can be switched into Manual Mode for direct local control underpassword supervision. Consult Section 5.4 for manual output control.
NOTE: The ability for these contacts to break its load is based on a numberof factors including voltage applied and the type of load. In general, there isa higher tendency for contacts to become welded shut at higher voltages.Therefore, protection devices, such as MOV’s are highly recommended ifthese contacts will be required to break more load current than that shownin the Specifications.
4.6 Power Supply
The TTC-1000 uses the latest integrated circuit switched mode power supplytechnology that allows the design to operate over an extremely broad range ofvoltages. The power supply input is protected for common mode and transverseconducted interference with a combination of an RFI filter and a high speedtransient voltage suppression device capable of dissipating 1,500 joules ofenergy.
The TTC-1000 can operate off either DC or AC voltages without modification.The bridge rectifier on the input permits the polarity of the DC voltage connectedto be reversed without damage.
The power supply’s output is a single +5V output. Load and line regulation ismaintained over the entire input voltage range and all load conditions.
4.7 Timers
There are a total of four timers, one each for OUT Pickup. Refer to Section 4.3for operation of this timer.
A timer only runs if programmed and there is an output that has satisfied theprogrammable logic requirements to pick up. All timer presets are stored in E2
OUTn P ickUp T imer
O U T n
InternalLogic for
O U T n
41 V4.17,November 26, 2002
memory and are loaded into data registers when needed. All timers run off theReal Time Interrupt that is generated by the Real Time Clock, which will beexplained in Section 4.8. Second and Minute counters are maintained for each ofthe timers.
Each OUT pickup timer consists of 2 data registers. The first register holds thetimer preset that was programmed. For example if the timer was programmed for15 seconds, this first register is loaded with 15. The second register is pre-loadedwith a value that causes the 1st register to decrement approximately once asecond. This allows the TTC-1000 to operate these timers simultaneously to afull-scale accuracy of +/- 1%.
NOTE: It is important to note that changing a timer while in progress willnot cause the timer to reset or re-initialize. Therefore, if you wish to changea timer in progress, you must force the timer to reset by changing thecondition which initiated the timer.
4.8 Real Time Clock
The TTC-1000 utilizes a Dallas Semiconductor DS1307 real time clock chip. Thisdevice has two functions. It supplies precise 32 millisecond time ticks for the RealTime Interrupt and it keeps track of the time, date and day of the week. TheDS1307 utilizes a standard 32.768kHz crystal. Also, the DS1307’s time, date,and day are maintained even while the unit is unpowered for 5 days at 85ºC. TheTTC-1000 powers the RTC through the use of a muli-layer 0.1 Farad super cap.The super cap circuit eliminates the need for battery backup and is designed tooperate over the entire temperature range.
The RTC also keeps track of the day of the week and date. These parametersalong with time are used to evaluate the TIME set points.
4.9 Electrically Erasable Memory
All settings and minimum and maximum temperatures are stored in a 2K byteserial electrically erasable (E2) memory utilizing the Microchip 24LC16. Thedevice is high in endurance with a failure rate of less than 0.05% over a 20 yearlifespan.
4.10 Alarm
The single form B relay is utilized to provide a dry contact closure for alarmconditions. While the unit is energized, the alarm relay is energized. This allowsthe unit to provide an alarm should the device lose DC power or becomes de-energized.The TTC-1000 monitors three conditions: Processor (DEVICE), Temperature(TPROBE), and Manual Mode (MANUAL). The TTC-1000 allows the user toenable or disable any or all of the alarm conditions through programming. The
42 V4.17,November 26, 2002
user can also program how each output reacts when an alarm occurs.A DEVICE alarm occurs anytime the microprocessor detects a failure in any ofthe peripheral hardware including the non-volatile E2 memory, the real time clock,analog outputs or corruption of stored data.
The TPROBE alarm is generated anytime the processor is unable to complete anA/D conversion. This can be due to a discontinuity in the leads connected to thetemperature probe or with any of the internal circuitry associated with the analogto digital conversion process. All temperature set point evaluations aresuspended until the alarm condition is cleared.The MANUAL alarm occurs anytime any of the three outputs is programmed fromAuto Mode to Manual Mode, independent of whether the output is picked up ordropped out. The Manual Mode alarm is for reporting only and does notsupervise any of the control functions.
The user can program each output in how it reacts when either a Processor orTemperature alarm occurs. The user can set an output to pick up, drop out, orstay in its current state when either alarm occurs.
4.11 Analog Outputs
The TTC-1000 can be optionally equipped with one or two current loop outputs.Each output is designed to output a current proportional to temperaturecorresponding to its associated temperature probe. The data source for eachoutput is programmable by the user to be either P1 (probe #1), P2 (probe #2) orcalculated winding temperature.
Each analog output utilizes a 10 bit voltage output Digital to Analog converter(DAC). The voltage from the DAC is fed to the non-inverting input of a unity-gainbuffer amplifier whose output drives the base of a PNP transistor. To maintainaccuracy over the full operating range, the emitter of the transistor is fed back tothe inverting input of the buffer amplifier, thus eliminating temperature drift due tothe variation of base-to-emitter voltage. The transistor operates as emitterfollower where the current flowing in the emitter is approximately equal to thecollector current plus any base current.
The precision resistor connected from the emitter to the compliance voltagesupply establishes the output current. The analog outputs can be programmed tosource either 0 to 1 or 4 to 20 mA. This is accomplished by switching in a secondprecision resistor using a low on-resistance analog switch whose parallelcombination is such to provide 4 to 20 mA when switched in, or 0 to 1 mA whenswitched out. Setting either for 0 to 1 mA or 4 to 20 mA, automatically programsboth analog outputs for the same range.
Each analog output is designed to work with up to 9,500 ohms when set for 0 to1 mA and 450 ohms when set for 4 to 20 mA.
43 V4.17,November 26, 2002
Upon initialization, the DAC is set to zero, if 0 to 1 mA or offset to drive 4 mA, ifset for 4 to 20 mA. During the initialization process, the processor looks to see ifthe DAC is installed. If installed, the DAC will be updated every 16 seconds whennew temperature data is available.
Should the user select a new range, the output will not change range until newtemperature data is available.
The relationship of the analog output differs depending on what the probe ismeasuring. For top oil, winding, and ambient temperatures the relationshipbetween output current and temperature is as follows:
Range 0 to 1mA:
160eTemperaturCurrent ÷=
4 to 20mA:
4eTemperatur0.1Current +×=
For LTCDIFF the relationship is as follows:
Range 0 to 1mA:
( ) 0.540eTemperaturCurrent +÷=
4 to 20mA:
12eTemperatur0.4Current +×=
44 V4.17,November 26, 2002
4.12 Programmable Logic
The TTC-1000 utilizes a simple scheme to control the four relay outputs. Eachoutput can be configured to be picked up or dropped out by assigning any of theavailable operands to a specific output. Table 4.4 illustrates the availableoperands.
Type Quantity Description
Temperature Set Points(Probe 1: SP11, SP12, SP13,SP14; Probe 2: SP21, SP22,SP23, SP24)
3 for Single Probe,6 for Dual Probe
Each has its own pickup and dropouttemperatures settable from 0 to 160 º C.
LTC DIFF Set Point (Notavailable in single probe ver.)
1 Has its own pickup and dropouttemperatures settable from 0 to 160 º C.
Winding Set Points: WSP1,WSP2, WSP3, WSP4
3 Each has its own pickup and dropouttemperatures settable from 0 to 160 º C.
Load Set Points: LSP1, LSP2 2 Each has its own pickup and dropoutcurrents settable from 0.0 to 9.9 Amps
Outputs(OUT1,OUT2,OUT3,OUT4)
3 Outputs can be assigned to either itself orany other output.
TIME (TIME1, TIME2, TIME3) 3 Settable pickup and dropout times. Eachsettable from 00:00 to 23:59
Table 4.5: Operands
An operand can only be assigned to a specific output and cannot be assigned toanother output as long as it is assigned. For example, SP11 cannot be assignedto OUT2 and OUT3; it can only be assigned to either OUT2 or OUT3.
Any of the temperature set points or outputs can be inverted when assigned. Forexample inverting SP11 will cause SP11 to be recognized as true whenever it isde-asserted. Also, these specific operands can be either AND’ed (!) or OR’ed(+) to a specific output. In evaluating a specific output, the TTC-1000 groups allof the OR’ed terms together and all of the AND’ed terms together. As anexample by assigning SP11 + and SP21 + to OUT3 will result in the followingBoolean expression for OUT3:
OUT3 = SP11 + SP21
Assigning SP11 ! to OUT3 and SP21 ! and SP12 + to OUT3 will result in thefollowing Boolean expression:
OUT3 = SP12 ! SP11!SP21
Note, the OR operator plays no roll in the evaluation of the above expression.
The TIME operands cannot be inverted and can only be OR’ed to the other termsassigned to the same output. As an example, if TIME2 is assigned to OUT3 in
45 V4.17,November 26, 2002
addition to the operands SP1, SP2 and OUT1 as shown above, the Booleanexpression will be evaluated as:
OUT3 = (TIME2 + SP12) ! SP11!SP21
TIME set points are evaluated as true at any time the real time clock date iswithin the specified pickup or drop out range of these set points.
NOTE: When using remote control through DNP3.0 communications andfail-safe cooling control, it is necessary to use the INVERT setting. The useof the inversion operator on a set point will not be recognized by theremote control functions resulting in the cooling to be de-energized.
4.13 RS-232 Interface
The RS-232 interface uses a Maxim MAX232 RS-232 transceiver with 15KVESD protection. Connection to this interface is through the front panel mountedDB-9 connector. When connecting to a standard RS-232 port in a PC, eitherdesktop or laptop, use a 9 pin female to 9 pin male null modem cable.
4.14 Communications Processor
Units equipped for DNP3.0 communications are equipped with a special modulecontaining all the hardware to implement an asynchronous half-duplex RS-485interface and software to support the DNP 3.0 Level 1 protocol. This approachhas been taken so as not to burden the main microprocessor with the task ofresponding to request messages from the Master station. This insures that allrequest messages from the Master are processed and responded to with thelatest data transferred from the Main microprocessor. Also it insures that coolingmonitoring and control functions operate normally and without delay. Each of thetwo RS-485 interface lines are protected by a 600W transient voltagesuppressor, which should they conduct, shunt the high energy impulses intochassis ground.
The module also contains a termination resistor to be used in the event that thedevice is either the last or first device on the multi-drop bus. The RS-485transceiver is of a special design so as to be immune from the affects of ashorted or open communications circuit.
46 V4.17,November 26, 2002
5.0 FRONT PANEL MENU AND MENU NAVIGATION
The TTC utilizes four (4) major menu categories:
• Time & Temperature Display
• Min/Max Temperature
• View Settings
• Program Settings
• View Status of outputs and set points
Figure 5.1 shows how the user navigates between the major menu categoriesand into the various sub-menu categories within a major menu category.
Figure 5.1: Major Menu Navigation
To display past the first menu category, you must press the YES button. Oncepressing the YES button you can scroll through the various selections availableusing the %%%% or &&&&arrow buttons. You can bounce back to scrolling through themajor menu categories at any time, with the exception of when you areprogramming a parameter, by pressing the NO button.
Major Menu Categories
Time &Temperature
Display
PROGRAM
VIEW STATUS
UPArrowButton
D O W NArrowButton
VIEW SPnPICKUP
YES
WINDGCAL=
ENTERPASSWORD
PROGRAM SP1PICKUP
PROGRAMPASSWORD
SP11=(status) TIME3=(status)
YES
YES
YES
Pressing NObounces back to
Major MenuCategories
VIEW SETTINGS
Press YES toscroll manuallyusing the UP &DOWN arrow
buttons
47 V4.17,November 26, 2002
5.1 Temperature & Time Display
The temperature & time display will be the first display you see upon power up.Date, time, and temperature are updated when fresh data is available. Inaddition, the display will indicate one of five conditions:
• Temperature: TOP OIL, WINDING, AMBIENT, or LTCDIFF
• ALRM DEVICE (temperature is not displayed)
• ALRM TPROBE (temperature is not displayed)
• MANUAL: one or more outputs are in manual control mode
With the dual probe option, the display will alternate and display eachtemperature, calculated winding temperature (if equipped), load current (ifequipped) and the MIN/MAX’s every four seconds.
The LTCDIFF temperature will display the arithmetic difference between theprobe measuring the LTC tank and the probe measuring the top oil temperature.
It is noted that the probe temperature upon power up is 00°C and updates within16 seconds to the correct temperature. Calculated winding temperature willincrease or decrease at a rate based on the programmed winding time constant.
Min/Max Temperature displays the last minimum and maximum temperature timestamped with the date and time.
The user can stop the automatic scrolling by pressing the YES button. The usercan then use the '''' or (((( buttons to step through each temperature, load or minor max temperature display. The user can return to automatic scrolling at anytime by pressing the NO button.
NOTE: The unit will return to the automatic scrolling from any menu afterone minute of inactivity. Activity is defined as any button being pressed.
Pressing the YES button when the display reads “RST MIN/MAX” will reset thevalues stored and is only active when the display prompts the user to reset thestored min/max values. The display will read: “MIN/MAX IS RST”
5.2 VIEW
View allows you to examine settings without entering PROGRAM. Pressing theYES button will allow you to scroll through each parameter by using the %%%% or&&&&arrow buttons. By pressing NO you will bounce back to scrolling through themajor menu categories.
5.3 PROGRAM
All settings can be changed through the front panel. To access settings to makechanges, you must first enter a four digit password.
48 V4.17,November 26, 2002
5.4.1 Password Entry
Upon entering PROGRAM you will be prompted to enter a password. You cannotenter PROGRAM unless you enter the correct password. The TTC-1000recognizes two passwords, one programmed and a super user password. Thepassword programmed at the factory is 0000. The super user password is 0905and cannot be changed.
First, you must press YES to begin entering the password. Use the )))) or****buttons to scroll between the digits. Use the %%%% or &&&&arrow buttons to scrollthrough the digits 0 – 9. Press YES after you have entered the password.
If the password is correct, you will see the 1st setting, SP1PICKUP. Pressing theNO button at any time will bounce you back to the password entry display.
The Figure 5.2 illustrates the password entry process.
Figure 5.2: Password Entry
CORRECT
ENTER PASSWORD
WRONG PASSWORD
NOT CORRECT
YES
CORRECT
PROGRAM SP PICKUP
NO
YES
ENTER PROGRAMPASSWORD= 0 Display Reads
NO
NO YES Front PanelButtons
49 V4.17,November 26, 2002
5.4.2 Front Panel Settings
The following table lists all the front panel programmable settings. A blank spaceis provided to write-in the desired setting.
Setting Purpose Setting Range or Values Factory
Default
Program to
SP11PICKUP Probe #1 pickup
temperature
0 to 160 °C 0
SP11DRPOUT Probe #1 dropout
temperature
0 to 160 °C 0
SP12PICKUP Probe #1 pickup
temperature
0 to 160 °C 0
SP12DRPOUT Probe #1 dropout
temperature
0 to 160 °C 0
SP13PICKUP Probe #1 pickup
temperature
0 to 160 °C 0
SP13DRPOUT Probe #1 dropout
temperature
0 to 160 °C 0
SP14PICKUP Probe #1 pickup
temperature
0 to 160 °C 0
SP14DRPOUT Probe #1 dropout
temperature
0 to 160 °C 0
SP21PICKUP Probe #2 pickup
temperature
0 to 160 °C 0
SP21DRPOUT Probe #2 dropout
temperature
0 to 160 °C 0
SP22PICKUP Probe #2 pickup
temperature
0 to 160 °C 0
SP22DRPOUT Probe #2 dropout
temperature
0 to 160 °C 0
SP23PICKUP Probe #2 pickup
temperature
0 to 160 °C 0
SP23DRPOUT Probe #2 dropout
temperature
0 to 160 °C 0
50 V4.17,November 26, 2002
Setting Purpose Setting Range or Values Factory
Default
Program to
SP24PICKUP Probe #2 pickup
temperature
0 to 160 °C 0
SP24DRPOUT Probe #2 dropout
temperature
0 to 160 °C 0
CT RATIO Sets Primary CT
ratio0 to 6000 0
WINDINGRISE
(functional only in
units equipped with
aux CT)
Set hotspot rise
above top oil
temperature at
rated load from
manufacturer's
heat run data
0 to 99 °C 0
RATED LOAD
(functional only in
units equipped with
aux CT)
Sets rated load
current0 to 65535 Amps 0
WINDINGTC
(functional only in
units equipped with
aux CT)
Sets winding time
constant from
manufacturer's
heat run data
0 to 999 minutes 0
DIRECTED FOA
(functional only in
units equipped with
CT)
Sets cooling type
to direct
FOA/FOW
YES, NO NO
WSP1PICKUP Calculated
winding set point
pickup
temperature
0 to 160 °C 0
WSP1DRPOUT Calculated
winding set point
dropout
temperature
0 to 160 °C 0
WSP2PICKUP Calculated
winding set point
pickup
temperature
0 to 160 °C 0
51 V4.17,November 26, 2002
Setting Purpose Setting Range or Values Factory
Default
Program to
WSP2DRPOUT Calculated winding
set point dropout
temperature
0 to 160 °C 0
WSP3PICKUP Calculated winding
set point pickup
temperature
0 to 160 °C 0
WSP3DRPOUT Calculated winding
set point dropout
temperature
0 to 160 °C 0
WSP4PICKUP Calculated winding
set point pickup
temperature
0 to 160 °C 0
WSP4DRPOUT Calculated winding
set point dropout
temperature
0 to 160 °C 0
LTCDIFF PU (Not
functional in single
probe units)
LTC Differential
pickup temperature
-20 to 20 °C 0
LTCDIFF DO (Not
functional in single
probe units)
LTC Differential
drop out
temperature
-20 to 20 °C 0
LTCPUTMR (Not
functional in single
probe units)
LTC Differential
pickup timer
supervises
LTCDIFF pickup
0 to 999 Minutes 0
LOADPUSP1
(functional only in units
equipped with aux CT)
Load pickup set
point
0.0 to 9.9 Amps 0.0
LOADDOSP1
(functional only in units
equipped with aux CT)
Load dropout set
point
0.0 to 9.9 Amps 0.0
LOADPUSP2
(functional only in units
equipped with aux CT)
Load pickup set
point
0.0 to 9.9 Amps 0.0
52 V4.17,November 26, 2002
Setting Purpose Setting Range or Values Factory
Default
Program to
LOADDOSP2 (functional
only in units equipped
with aux CT)
Load dropout set
point
0.0 to 9.9 Amps 0.0
LSP1PUTMR (functional
only in units equipped
with aux CT)
Load pickup timer 0 to 255 seconds 0
LSP2PUTMR (functional
only in units equipped
with aux CT)
Load pickup timer 0 to 255 seconds 0
OUT1PUTMR Delays activation
of an output
0 to 255 seconds (Note: a
0 setting results in a
32msec delay)
0
OUT2PUTMR Delays activation
of an output
0 to 255 seconds (Note: a
0 setting results in a
32msec delay)
0
OUT3PUTMR Delays activation
of an output
0 to 255 seconds (Note: a
0 setting results in a
32msec delay)
0
OUT4PUTMR Delays activation
of an output
0 to 255 seconds (Note: a
0 setting results in a
32msec delay)
0
(!) SP11 (*/+) TO OUTn Assigns probe #1
set point to a
specific output
using a defined
AND or OR logic
operator
SP11 * OUT n
! SP11 * OUT n
SP11 + OUT n
! SP11 + OUT n
where n=1,2,3,4
SP11 *
OUT0
(!) SP12 (*/+) TO OUTn Assigns probe #1
set point to a
specific output
using a defined
AND or OR logic
operator
SP12 * OUT n
! SP12 * OUT n
SP12 + OUT n
! SP12 + OUT n
where n=1,2,3,4
SP12 *
OUT0
53 V4.17,November 26, 2002
Setting Purpose Setting Range or Values Factory
Default
Program to
(!) SP13 (*/+) TO OUTn Assigns probe #1
set point to a
specific output
using a defined
AND or OR logic
operator
SP13 * OUT n
! SP13 * OUT n
SP13 + OUT n
! SP13 + OUT n
where n=1,2,3,4
SP13 *
OUT0
(!) SP14 (*/+) TO OUTn Assigns probe #1
set point to a
specific output
using a defined
AND or OR logic
operator
SP14 * OUT n
! SP14 * OUT n
SP14 + OUT n
! SP14 + OUT n
where n=1,2,3,4
SP14 *
OUT0
(!) SP21 (*/+) TO OUTn
(Not functional in single
probe units)
Assigns probe #2
set point to a
specific output
using a defined
AND or OR logic
operator
SP21 * OUT n
! SP21 * OUT n
SP21 + OUT n
! SP21 + OUT n
where n=1,2,3,4
SP21 *
OUT0
(!) SP22 (*/+) TO OUTn
(Not functional in single
probe units)
Assigns probe #2
set point to a
specific output
using a defined
AND or OR logic
operator
SP22 * OUT n
! SP22 * OUT n
SP22 + OUT n
! SP22 + OUT n
where n=1,2,3,4
SP22 *
OUT0
(!) SP23 (*/+) TO OUTn
(Not functional in single
probe units)
Assigns probe #2
set point to a
specific output
using a defined
AND or OR logic
operator
SP23 * OUT n
! SP23 * OUT n
SP23 + OUT n
! SP23 + OUT n
where n=1,2,3,4
SP23 *
OUT0
54 V4.17,November 26, 2002
Setting Purpose Setting Range or Values Factory
Default
Program to
(!) SP24 (*/+) TO
OUTn
(Not functional in
single probe units)
Assigns probe #2
set point to a
specific output
using a defined
AND or OR logic
operator
SP24 * OUT n
! SP24 * OUT n
SP24 + OUT n
! SP24 + OUT n
where n=1,2,3,4
SP24 *
OUT0
(!) LTC (*/+) TO
OUTn
(Not functional in
single probe units)
Assigns the LTC
differential SP to a
specific output
using a defined
AND or OR logic
operator
LTC * OUT n
! LTC * OUT n
LTC + OUT n
! LTC + OUT n
where n=1,2,3,4
LTC *
OUT0
(!) WSP1 (*/+) TO
OUTn
(functional only in
units equipped with
aux CT)
Assigns
calculated winding
set points to a
specific output
using a defined
AND or OR logic
operator
WSP1 * OUT n
! WSP1 * OUT n
WSP1 + OUT n
! WSP1 + OUT n
where n=1,2,3,4
WSP1 *
OUT0
(!) WSP2 (*/+) TO
OUTn
(functional only in
units equipped with
aux CT)
Assigns
calculated winding
set points to a
specific output
using a defined
AND or OR logic
operator
WSP2 * OUT n
! WSP2 * OUT n
WSP2 + OUT n
! WSP2 + OUT n
where n=1,2,3,4
WSP2 *
OUT0
(!) WSP3 (*/+) TO
OUTn
(functional only in
units equipped with
aux CT)
Assigns
calculated winding
set points to a
specific output
using a defined
AND or OR logic
operator
WSP3 * OUT n
! WSP3 * OUT n
WSP3 + OUT n
! WSP3 + OUT n
where n=1,2,3,4
WSP3 *
OUT0
55 V4.17,November 26, 2002
Setting Purpose Setting Range or Values Factory
Default
Program to
(!) WSP4 (*/+) TO
OUTn
(functional only in
units equipped with
aux CT)
Assigns calculated
winding set points
to a specific output
using a defined
AND or OR logic
operator
WSP4 * OUT n
! WSP4 * OUT n
WSP4 + OUT n
! WSP4 + OUT n
where n= 1,2,3,4
WSP4 *
OUT0
(!) LSP1 (*/+) TO
OUTn
(functional only in
units equipped with
aux CT)
Assigns load set
points to a specific
output using a
defined AND or OR
logic operator
LSP1 * OUT n
! LSP1 * OUT n
LSP1 + OUT n
! LSP1 + OUT n
where n=1,2,3,4
LSP1 *
OUT0
(!) LSP2 (*/+) TO
OUTn
Assigns load set
points to a specific
output using a
defined AND or OR
logic operator
LSP2 * OUT n
! LSP2 * OUT n
LSP2 + OUT n
! LSP2 + OUT n
where n=1,2,3,4
LSP2 *
OUT0
(!) OUT1 (*/+) TO
OUTn
Assigns an output
to a specific output
using a defined
AND or OR logic
operator
OUT1 * OUT n
! OUT1 * OUT n
OUT1 + OUT n
! OUT1 + OUT n
where n=1,2,3,4
OUT1 *
OUT0
(!) OUT2 (*/+) TO
OUTn
Assigns an output
to a specific output
using a defined
AND or OR logic
operator
OUT2 * OUT n
! OUT2 * OUT n
OUT2 + OUT n
! OUT2 + OUT n
where n=1,2,3,4
OUT2 *
OUT0
56 V4.17,November 26, 2002
Setting Purpose Setting Range or Values Factory
Default
Program to
(!) OUT3 (*/+) TO
OUTn
Assigns an
output to a
specific output
using a defined
AND or OR logic
operator
OUT3 * OUT n
! OUT3 * OUT n
OUT3 + OUT n
! OUT3 + OUT n
where n=1,2,3,4
OUT3 *
OUT0
(!) OUT4 (*/+) TO
OUTn
Assigns an
output to a
specific output
using a defined
AND or OR logic
operator
OUT4 * OUT n
! OUT4 * OUT n
OUT4 + OUT n
! OUT4 + OUT n
where n=1,2,3,4
OUT4 *
OUT0
TIME1 SP
00:00-00:00 >
OUT0,1,2,3,4
OR's a time
range to a
specific output
Pickup and Dropout range:00:00 to 23:59 (Military time)
00:00-
00:00>
OUT0
TIME2 SP
00:00-00:00 >
OUT0,1,2,3,4
OR's a time
range to a
specific output
Pickup and Dropout range:00:00 to 23:59 (Military time)
00:00-
00:00>
OUT0
TIME3 SP
00:00-00:00 >
OUT0,1,2,3,4
OR's a time
range to a
specific output
Pickup and Dropout range:00:00 to 23:59 (Military time)
00:00-
00:00>
OUT0
INVERT OUT1 Master output
inversionOFF, ON OFF
INVERT OUT2 Master output
inversionOFF, ON OFF
INVERT OUT3 Master output
inversionOFF, ON OFF
57 V4.17,November 26, 2002
Setting Purpose Setting Range or Values Factory
Default
Program to
INVERT OUT4 Master output
inversionOFF, ON OFF
ALTERNATE Selects an
output pair to
alternate
between to
exercise fans
DSABL, 1-2, 1-3, 1-4, 2-3,
2-4, 3-4
DSABL
P1 NAME Probe #1 name TOP OIL, WINDING,AMBIENT, LTCDIFF,BOTMOIL
TOP OIL
P2 NAME Probe #2 name
(optional)TOP OIL, WINDING,AMBIENT, LTCDIFF,BOTMOIL
TOP OIL
(only in
dual
probe)
ANALGOUT Current loop
current range0to1mA or 4to20mA 0to1mA
A1 SOURCE Sets source for
analog output A1P1 (probe1), P2 (probe 2),WINDING (calculated)
P1
A2 SOURCE Sets source for
analog output A2P1 (probe1), P2 (probe2),WINDING (calculated)
P1
BAUD RATE Sets baud rate
for RS-485
interface
1200, 2400, 9600, 19200 1200
NODE ADDR Sets the node
address for
DNP3.0
0 - 65535 0
REMOTE BLK Blocks remote
control commandENABL to block remotecontrol or DSABL to allowremote control
DSBL
TIME Sets military time HH:MM 00:00
MONTH Sets month 1 to 12 00
DAY Sets day 1 to 31 00
58 V4.17,November 26, 2002
Setting Purpose Setting Range or Values Factory
Default
Program to
YEAR Sets Year 00 to 99 00
DEVICEALRM Processor alarm
enableENABL for enabled or DSABLfor disabled
ENABL
TPROBEALRM Temperature
measurement
alarm enable
ENABL for enabled or DSABLfor disabled
ENABL
MANALRM Manual mode
alarm enableENABL for enabled or DSABLfor disabled
ENABL
OUT1(Action)
w/ALRM
Action: UNCHG,
PCKUP,SUPV
Allows OUT1 to
default when a
DEVICE or
TPROBE alarm
1.OUT1UNCHGw/ALRM does
not allow OUT1 to change
state when alarm
2.OUT1PCKUPw/ALRM causes
OUT1 to pickup when alarm
3. OUT1SUPVw/ALRM drops
out OUT1 when alarm
OUT1
UNCHG
w/ALRM
OUT2 (Action)
w/ALRM
Action: UNCHG,
PCKUP, SUPV
Allows OUT2 to
default when a
DEVICE or
TPROBE alarm
1.OUT2UNCHGw/ALRM does
not allow OUT2 to change
state when alarm
2.OUT2PCKUPw/ALRM causes
OUT2 to pickup when alarm
3. OUT2SUPVw/ALRM drops
out OUT2 when alarm
OUT2
UNCHG
w/ALRM
OUT3(Action)
w/ALRM
Action: UNCHG,
PCKUP,SUPV
Allows OUT3 to
default when a
DEVICE or
TPROBE alarm
1.OUT3UNCHGw/ALRM does
not allow OUT3 to change
state when alarm
2.OUT3PCKUPw/ALRM causes
OUT3 to pickup when alarm
3. OUT3SUPVw/ALRM drops
out OUT3 when alarm
OUT3
UNCHG
w/ALRM
59 V4.17,November 26, 2002
Setting Purpose Setting Range or Values Factory
Default
Program to
OUT4 (Action)
w/ALRM
Action: UNCHG,
PCKUP, SUPV
Allows OUT4
default when a
DEVICE or
TPROBE alarm
1.OUT4UNCHGw/ALRM does
not allow OUT4 to change
state when alarm
2.OUT4PCKUPw/ALRM
causes OUT4 to pickup
when alarm
3. OUT4SUPVw/ALRM drops
out OUT4 when alarm
OUT4
UNCHGw/
ALRM
OUT1CNTRL Permits manual
control of OUT1AUTO, MAN OFF, MAN ON AUTO
OUT2CNTRL Permits manual
control of OUT2AUTO, MAN OFF, MAN ON AUTO
OUT3CNTRL Permits manual
control of OUT3AUTO, MAN OFF, MAN ON AUTO
OUT4CNTRL Permits manual
control of OUT4AUTO, MAN OFF, MAN ON AUTO
PASSWORD Allows access to 4 digits 0000
60 V4.17,November 26, 2002
5.4.3 Temperature Set Points
Figure 5.3 illustrates the setting of SPpn PICKUP, SPpn DRPOUT settings. Therange is 0 to 160 ºC. There are a total of four set points for a single probe unit:SP11, SP12, SP13 and SP14. Dual probe units have four additional set points:SP21, SP22, SP23, and SP24. The same method is used to set calculatedwinding set points WSP1, WSP2, WSP3, and WSP4.
Figure 5.3: Setting SPpn Pickup & Dropout Temperatures
SPpnPICKUP
SPpnDRPOUT
100s 10s 1s °C
YES$$$$
$$$$
Move Back
Move Forward
Select toChange
$ $$$
$$$ $
Scroll EachDigit
SaveYES
NO
AbortWithoutSaving
61 V4.17,November 26, 2002
5.4.4 LTCDIFF Set Point
Figure 5.4 illustrates the setting of the LTCDIFF pickup and dropouttemperatures. This set point compares the arithmetic difference between theTOP OIL probe and the LTC tank probe. This set point does not function unlessone of the two probes is set to LTCDIFF. The setting range is –20 to 20 ºC.
Figure 5.4: Setting LTCDIFF Pickup & Dropout
5.4.5 Output Pickup Timers
Figure 5.5 illustrates the setting of the output timers. Valid setting range of 0 to255 seconds:
Figure 5.5: Output Pickup Timer Setting
LTCDIFFPU
LTCDIFFDO
100s 10s 1s °C
YES$$$$
$$$$
Move Back
Move Forward
Select toChange
$ $$$
$$$ $
Scroll EachDigit
SaveYES
NO
AbortWithoutSaving
SIGN
OUT PU TMR 100s 10s 1s °C
YES$$$$
$$$$
Move Back
Move Forward
Select toChange
$ $$$
$$$ $
Scroll EachDigit
SaveYES
NOAbort
WithoutSaving
62 V4.17,November 26, 2002
NOTES:
1. Caution should be observed when changing temperature set points andtimers. For example changing a pickup timer does not replace the timervalue in place if the timer is in progress. The timer will continue to runwith the previously programmed value until either the timeout iscompleted or the conditions which caused the timer to start are nolonger met. The timer will use the new value the next time the timerruns.
When changing pickup or drop out temperature set points, the newvalue takes affect the next time temperature data is updated whichoccurs every 16 seconds. However, once a SP is picked up, changingthe pickup temperature to a higher (if over temperature) or lower (ifunder temperature) value will not cause the SP to drop out. Once atemperature set point is picked up, the only way it can drop out is if thedrop out condition is met. Operation of set points is explained inSection 3.3.
2. SP21, SP22, SP23, and SP24 drop out and pick up are settable in singleprobe models, but do not have any function.
3. WSP1, WSP2, WSP3, WSP4, LSP1, and LSP2 drop out and pick up aresettable in models without the calculated winding feature, but do nothave any function.
4. In single probe versions, the LTCDIFF pickup and dropout settingsdisplay “N/A”.
5. Be careful to check that the LTCDIFF pickup and dropout set points arenever set to greater than 20 or less than –20. Erroneous operation of theLTCDIFF pickup or dropout will result if these set points are set beyondthe stated range.
5.4.6 Output Assignment
Figure 5.6 illustrates the assignment of temperature set points(SP11,12,13,14,21,22,23,24), LTC DIFF, and outputs (OUT1,2,3,4) to a specificoutput. You must select an output other than 0 (OUT0) to assign an operand toan output. Using the %%%% or &&&&arrow buttons will allow you to scroll through theavailable setting options. The )))) or ****buttons allow you to move to the nextparameter, either or left or right, of the current cursor position.
63 V4.17,November 26, 2002
Figure 5.6: Assigning Temperature SP, LTCDIFF, Output Operands toOutputs
NOTES:
1. Assignment of WSP1, WSP2, WSP3, WSP4, LSP1, and LSP2 areidentical to SPpn
2. In single probe models, set points SP21, SP22, SP23, SP24 can beassigned, but are not functional.
3. In models without calculated winding feature, set points WSP1, WSP2,WSP3, WSP4, LSP1, and LSP2 can be assigned but are not functional.
4. In single probe units, set point LTCDIFF can be assigned, but are notfunctional.
Figure 5.7 illustrates the assignment of time (TIME1,2,3) set points. Theseoperands can only be OR’ed and cannot be inverted.
*
Invert Sign ‘!’
SPpn
Operator ‘*’ or ‘+’
OUT
OUT # 0, 1, 2, 3, 4
Invert Sign ‘!’
LTCDIFF
Operator ‘*’ or ‘+’
OUT
OUT # 0, 1, 2, 3, 4
Invert Sign ‘!’
OUTn
Operator ‘*’ or ‘+’
OUT
OUT # 0, 1, 2, 3,4
)
64 V4.17,November 26, 2002
Figure 5.7: Assigning Time Set Point Operand to Outputs
5.4 STATUS
STATUS allows you to take a snapshot of the current internally recognized stateof any output, temperature set points, LOAD, LTCDIFF set points, and time setpoints. In the case of outputs, this will be the state of the output relay. Fortemperature and LTCDIFF set points, it will reflect the recognized state of the setpoint.
To view the status of each operand you must first press YES. After pressing YESyou can use the %%%% or &&&&arrow buttons to scroll between the operands. PressingNO at any time will bounce you out of the display of status.
: TO >: OUT
PROGRAM TIME SP:
Pick Up TimeUsing Military
Time
Drop Out TimeUsing Military
Time
0 to 4
65 V4.17,November 26, 2002
6.0 RS-232 Communications
Asynchronous data communications is implemented through the front panelmounted DB-9 connector at a fixed data rate of 9600 bits per second, 8 bits ofdata, no parity, and one stop bit. We have verified operation of the interface withboth Procomm Plus and HyperTerminal. It is recommended that the terminalemulation be set for either ANSI or TTY. The pin out of this port is designed touse a 9 pin female to 9 pin male null modem cable.
Upon physical connection to the TTC-1000 and launching of the terminalemulation program, the TTC-1000 is waiting for either the Enter+ key to bepressed on the host computer or to receive two special commands proceeded bya forward slash ‘/’. Receiving an Enter or ASCII carriage return character causesthe TTC-1000 to display the MAIN MENU on the host computer. The twocommands: /T and /R, allows the TTC-1000 either to report the current ambienttemperature or reset the time to 00:00:00. Using the Backspace , key allowsyou to delete and re-enter data if you make a mistake.
The TTC-1000’s software is designed to log off from an RS-232 communicationsession if there is no activity after 30 minutes. The software will send a clearscreen character and the screen will appear blank after the 30 minute timeout.
6.1 Main Menu
If the Enter key is pressed, the terminal emulation program should display thefollowing menu:
Advanced Power Technologies, LLC; (C) 2001
Transformer Temperature Controller V4.XX
Select:
1. VIEW
2. PROGRAM (2/XXXX)
3. STATUS
4. UPLOAD SETTINGS
5. DOWNLOAD SETTINGS
6. LOG OFF
Enter Code:
From this point the user has 6 options. The first, allows the user to view all userprogrammed settings without entering the password. The second, requires a 4digit password to display and modify the settings. The 3rd option is to view the
66 V4.17,November 26, 2002
current state of all temperature set points, outputs, and time set points. The 4thoption allows the settings to be uploaded to a remote PC, the 5th option allows asetting file to be downloaded from a remote PC and the 6th and final optionallows the user to logout and allows the TTC-1000 to return to a monitoring of theRS-232 received buffer to wait for the Enter key to be pressed again.
The TTC-1000 will automatically log off if it detects no activity for 30 minutes.
NOTE: While the TTC-1000 is writing to data to the RS-232 interface, logicevaluation is suspended.
To access any of the options 1 or 3, the user enters 1 or 3 followed by pressingthe Enter key. To modify the settings the user must enter 2 followed by a forwardslash ‘/’ followed by the four digit password. The following is the entry madewhen using the Super User password:
2/0905+
6.2 ViewWhen the user presses 1 followed by the Enter key, the user will see thefollowing display:
VIEW01 SP11 PICKUP=00 °C02 SP11 DRPOUT=00 °C03 SP12 PICKUP=00 °C04 SP12 DRPOUT=00 °C05 SP13 PICKUP=00 °C06 SP13 DRPOUT=00 °C07 SP14 PICKUP=00 °C08 SP14 DRPOUT=00 °C09 SP21 PICKUP=00 °C10 SP21 DRPOUT=00 °C11 SP22 PICKUP=00 °C12 SP22 DRPOUT=00 °C13 SP23 PICKUP=00 °C14 SP23 DRPOUT=00 °C15 SP24 PICKUP=00 °C16 SP24 DRPOUT=00 °C17 WSP1 PICKUP=00 °C18 WSP1 DRPOUT=00 °C19 WSP2 PICKUP=00 °C20 WSP2 DRPOUT=00 °C21 WSP3 PICKUP=00 °C22 WSP3 DRPOUT=00 °C23 WSP4 PICKUP=00 °C24 WSP4 DRPOUT=00 °C25 LTCDIFF PICKUP=00 °C26 LTCDIFF DRPOUT=00 °C27 LTCPUTMR=00 MIN28 LSP1 PICKUP=0.0 A29 LSP1 DRPOUT=0.0 A
67 V4.17,November 26, 2002
30 LSP2 PICKUP=0.0 A31 LSP2 DRPOUT=0.0 A32 LOAD PICKUP TMR1 =00 sec33 LOAD PICKUP TMR2 =00 sec34 OUT1 PICKUP TMR=00 sec35 OUT1 AUTO (0)36 OUT1 UNCHG (0) w/ALRM37 OUT2 PICKUP TMR=00 sec38 OUT2 AUTO (0)39 OUT2 UNCHG (0) w/ALRM40 OUT3 PICKUP TMR=00 sec41 OUT3 AUTO (0)42 OUT3 UNCHG (0) w/ALRM43 OUT4 PICKUP TMR=00 sec44 OUT4 AUTO (0)45 OUT4 UNCHG (0) w/ALRM46 SP11 Not Assigned47 SP12 Not Assigned48 SP13 Not Assigned49 SP14 Not Assigned50 SP21 Not Assigned51 SP22 Not Assigned52 SP23 Not Assigned53 SP24 Not Assigned54 LTCDIFF Not Assigned55 WSP1 Not Assigned56 WSP2 Not Assigned57 WSP3 Not Assigned58 WSP4 Not Assigned59 LSP1 Not Assigned60 LSP2 Not Assigned61 OUT1 Not Assigned62 OUT2 Not Assigned63 OUT3 Not Assigned64 OUT4 Not Assigned65 TIME1 00:00 TO 00:00 Not Assigned66 TIME2 00:00 TO 00:00 Not Assigned67 TIME3 00:00 TO 00:00 Not Assigned68 OUT1 =Not INVERT (0)69 OUT2 =Not INVERT (0)70 OUT3 =Not INVERT (0)71 OUT4 =Not INVERT (0)72 CT RATIO=0073 RATED LOAD=00 A74 WINDING RISE @ RATED LOAD=00 °C75 WINDING TC=00 MIN76 COOLING TYPE=Not DIRECTED FOA (0)77 TPROBE1 NAME=TOP OIL (0)78 TPROBE2 NAME=TOP OIL (0)79 ALTERNATE=DSABL (0)80 ANALGOUT=0to1mA (0)81 A1 SOURCE=P1 (0)82 A2 SOURCE=P1 (0)83 BAUD RATE=1200 (0)84 NODE ADDR=085 REMOTE BLK=DSABL (0)86 TIME=17:52
68 V4.17,November 26, 2002
87 DATE=06/04/0188 DEVICE ALRM ENABLED (0)89 TEMPERATURE ALRM ENABLED (0)90 MANUAL ALRM ENABLED (0)
After transmitting the data to the host computer, the TTC-1000 automatically logsoff. The user must press the Enter key to re-display the Main Menu.
NOTE: In single probe units, TEMP PROBE2 NAME=N/A.
6.3 Program
If the user successfully enters the password the user will see the following list ofsettings which includes the password as follows:PROGRAM01 SP11 PICKUP=00 °C02 SP11 DRPOUT=00 °C03 SP12 PICKUP=00 °C04 SP12 DRPOUT=00 °C05 SP13 PICKUP=00 °C06 SP13 DRPOUT=00 °C07 SP14 PICKUP=00 °C08 SP14 DRPOUT=00 °C09 SP21 PICKUP=00 °C10 SP21 DRPOUT=00 °C11 SP22 PICKUP=00 °C12 SP22 DRPOUT=00 °C13 SP23 PICKUP=00 °C14 SP23 DRPOUT=00 °C15 SP24 PICKUP=00 °C16 SP24 DRPOUT=00 °C17 WSP1 PICKUP=00 °C18 WSP1 DRPOUT=00 °C19 WSP2 PICKUP=00 °C20 WSP2 DRPOUT=00 °C21 WSP3 PICKUP=00 °C22 WSP3 DRPOUT=00 °C23 WSP4 PICKUP=00 °C24 WSP4 DRPOUT=00 °C25 LTCDIFF PICKUP=00 °C26 LTCDIFF DRPOUT=00 °C27 LTCPUTMR=00 MIN28 LSP1 PICKUP=0.0 A29 LSP1 DRPOUT=0.0 A30 LSP2 PICKUP=0.0 A31 LSP2 DRPOUT=0.0 A32 LOAD PICKUP TMR1 =00 sec33 LOAD PICKUP TMR2 =00 sec34 OUT1 PICKUP TMR=00 sec35 OUT1 AUTO (0)36 OUT1 UNCHG (0) w/ALRM37 OUT2 PICKUP TMR=00 sec38 OUT2 AUTO (0)39 OUT2 UNCHG (0) w/ALRM40 OUT3 PICKUP TMR=00 sec41 OUT3 AUTO (0)42 OUT3 UNCHG (0) w/ALRM43 OUT4 PICKUP TMR=00 sec44 OUT4 AUTO (0)45 OUT4 UNCHG (0) w/ALRM46 SP11 Not Assigned
69 V4.17,November 26, 2002
47 SP12 Not Assigned48 SP13 Not Assigned49 SP14 Not Assigned50 SP21 Not Assigned51 SP22 Not Assigned52 SP23 Not Assigned53 SP24 Not Assigned54 LTCDIFF Not Assigned55 WSP1 Not Assigned56 WSP2 Not Assigned57 WSP3 Not Assigned58 WSP4 Not Assigned59 LSP1 Not Assigned60 LSP2 Not Assigned61 OUT1 Not Assigned62 OUT2 Not Assigned63 OUT3 Not Assigned64 OUT4 Not Assigned65 TIME1 00:00 TO 00:00 Not Assigned66 TIME2 00:00 TO 00:00 Not Assigned67 TIME3 00:00 TO 00:00 Not Assigned68 OUT1 =Not INVERT (0)69 OUT2 =Not INVERT (0)70 OUT3 =Not INVERT (0)71 OUT4 =Not INVERT (0)72 CT RATIO=0073 RATED LOAD=00 A74 WINDING RISE @ RATED LOAD=00 °C75 WINDING TC=00 MIN76 COOLING TYPE=Not DIRECTED FOA (0)77 TPROBE1 NAME=TOP OIL (0)78 TPROBE2 NAME=TOP OIL (0)79 ALTERNATE=DSABL (0)80 ANALGOUT=0to1mA (0)81 A1 SOURCE=P1 (0)82 A2 SOURCE=P1 (0)83 BAUD RATE=1200 (0)84 NODE ADDR=085 REMOTE BLK=DSABL (0)86 TIME=17:4687 DATE=06/04/0188 DEVICE ALRM ENABLED (0)89 TEMPERATURE ALRM ENABLED (0)90 MANUAL ALRM ENABLED (0)91 PASSWORD=0000
Enter Code:
The user now has the option of selecting a setting to be changed by entering theitem number as noted by the number on the left hand side followed by a forwardslash ‘/’ followed by modified data. The following illustrates the same listing asabove but with an example of the allowable data to be entered in bold on theright:PROGRAM01 SP11 PICKUP=65 °C 1/70 Changes SP11 pickup from 65 to 70 ºC02 SP11 DRPOUT=61 °C 2/40 Changes SP11 dropout from 61 to 40 ºC03 SP12 PICKUP=00 °C04 SP12 DRPOUT=00 °C05 SP13 PICKUP=00 °C06 SP13 DRPOUT=00 °C07 SP14 PICKUP=00 °C
70 V4.17,November 26, 2002
08 SP14 DRPOUT=00 °C09 SP21 PICKUP=00 °C10 SP21 DRPOUT=00 °C11 SP22 PICKUP=00 °C12 SP22 DRPOUT=00 °C13 SP23 PICKUP=00 °C14 SP23 DRPOUT=00 °C15 SP24 PICKUP=00 °C16 SP24 DRPOUT=00 °C17 WSP1 PICKUP=00 °C18 WSP1 DRPOUT=00 °C19 WSP2 PICKUP=00 °C20 WSP2 DRPOUT=00 °C21 WSP3 PICKUP=00 °C22 WSP3 DRPOUT=00 °C23 WSP4 PICKUP=00 °C24 WSP4 DRPOUT=00 °C25 LTCDIFF PICKUP=05 °C 25/-7 Changes LTCDIFF pickup from 5 to -7 ºC26 LTCDIFF DRPOUT=00 °C27 LTCPUTMR=00 MIN 27/480 Changes LTCPUTMR from 0 to 480 minutes28 LSP1 PICKUP=0.0 A 28/0.5 sets load SP1 pickup to 0.5A29 LSP1 DRPOUT=0.0 A 29/1.0 sets load SP1 dropout to 1.0A30 LSP2 PICKUP=0.0 A31 LSP2 DRPOUT=0.0 A32 LOAD PICKUP TMR1 =00 sec33 LOAD PICKUP TMR2 =00 sec34 OUT1 PICKUP TMR=00 sec 34/90 Changes OUT1 pickup timer from 0 to 90 seconds35 OUT1 AUTO (0) 35/1 Changes OUT1 to manual mode (OUT1 cannot be energized)36 OUT1 UNCHG (0) w/ALRM 36/1 Changes to OUT1 PCKUP (1) w/ALRM37 OUT2 PICKUP TMR=00 sec38 OUT2 AUTO (0)39 OUT2 UNCHG (0) w/ALRM 39/2 changes OUT2 SUPVS (2) w/ALRM40 OUT3 PICKUP TMR=00 sec41 OUT3 AUTO (0)42 OUT3 UNCHG (0) w/ALRM43 OUT4 PICKUP TMR=00 sec44 OUT4 AUTO (0)45 OUT4 UNCHG (0) w/ALRM46 SP11 Not Assigned 46/1/0/1 Assigns SP11 as !SP11 * TO OUT147 SP12 Not Assigned 47/0/1/2 Assigns SP12 as SP12 + TO OUT248 SP13 Not Assigned49 SP14 Not Assigned50 SP21 Not Assigned51 SP22 Not Assigned52 SP23 Not Assigned53 SP24 Not Assigned54 LTCDIFF Not Assigned55 WSP1 Not Assigned56 WSP2 Not Assigned57 WSP3 Not Assigned58 WSP4 Not Assigned59 LSP1 Not Assigned60 LSP2 Not Assigned61 OUT1 Not Assigned62 OUT2 Not Assigned63 OUT3 Not Assigned64 OUT4 Not Assigned65 TIME1 08:00 TO 15:00 Assigned TO OUT1 65/09:15/14:00/3 Changes PU time from08:00 to 09:15, the dropout time from 15:00 to 14:00 and output from 1 to 366 TIME2 00:00 TO 00:00 Not Assigned67 TIME3 00:00 TO 00:00 Not Assigned68 OUT1 =Not INVERT (0) 68/1 Inverts OUT169 OUT2 =Not INVERT (0)70 OUT3 =Not INVERT (0)
71 V4.17,November 26, 2002
71 OUT4 =Not INVERT (0)72 CT RATIO=00 72/1000 Sets CT ratio to 1000:173 RATED LOAD=00 A 73/20000 sets rated load to 20,000 amps74 WINDING RISE @ RATED LOAD=00 °C 74/15 sets winding rise over top oil to 15 ºC75 WINDING TC=00 MIN 75/60 sets winding time constant to 60 minutes76 COOLING TYPE=Not DIRECTED FOA (0) 76/1 sets cooling type to directed FOA-FOW77 TPROBE1 NAME=WINDING (1) 77/0 Changes probe #1 name from WINDING to TOP OIL78 TPROBE2 NAME=TOP OIL (0) 78/4 Changes probe #2 name from TOP OIL to LTCDIFF79 ALTERNATE=DSABL (0) 79/1 Chgs ALTERNATE from DSABL to 1 – 2, 79/2 ALTERNATE to 1 –3, 79/3 ALTERNATE 1 – 4, 79/4 ALTERNATE 2 – 3, 79/5 ALTERNATE 2 – 4, 79/6 ALTERNATE 3 - 480 ANALGOUT=0to1mA (0) 80/1 Changes analog output scaling from 0 to 1 mA to 4 to 20mA81 A1 SOURCE=P1 (0) 81/1 Sets source for A1 to P282 A2 SOURCE=P1 (0) 82/2 Sets source for A2 to calculated winding temperature83 BAUD RATE=1200 (0) 83/3 Sets RS-485’s interface to 9600 baud84 NODE ADDR=0 82/5 Sets node address for DNP3.0 communications to 585 REMOTE BLK=DSABL (0) 84/1 Enables Remote Blocking function86 TIME=16:03 85/20:53 changes time from 16:03 hours to 20:5387 DATE=10/29/00 86/07/04/01 changes date from October 29, 2000 to July 4, 200188 DEVICE ALRM ENABLED (0) 87/1 disables the device alarm89 TEMPERATURE ALRM ENABLED (0)90 MANUAL ALRM ENABLED (0)91 PASSWORD=0000 90/9361 changes the password from 0000 to 9361
Enter Code:
After entering the new data, the PROGRAM screen will be repeated with theupdated data. You can also press the Enter key on your keyboard, which putsthe RS-232 port to sleep until you press the Enter key again.
72 V4.17,November 26, 2002
NOTES:
1. Leading zeros must be entered for date and time.
2. In single probe units, item #42, TEMP PROBE2 NAME, is settable but willbe displayed as N/A.
3. Load pickup and drop out set points must be entered as x.x.
The TTC-1000 will automatically log off and clear the screen after 30 minutes ofinactivity.
Settings Worksheets
The following worksheet is a comprehensive list of all the settings programmablethrough the RS-232 interface and possible settings. A blank space is provided towrite-in the desired setting:
Setting # Setting Purpose Setting Range or Values Program to
1 SP11 PICKUP Probe #1 set
point #1 pickup
temperature
1/nnn
where nnn=0 to 160
2 SP11 DRPOUT Probe#1 set
point#1 dropout
temperature
2/nnn
where nnn=0 to 160
3 SP12 PICKUP Probe #1, set
point #2 pickup
temperature
3/nnn
where nnn=0 to 160
4 SP12 DRPOUT Probe #1 set
point #2 dropout
temperature
4/nnn
where nnn=0 to 160
5 SP13 PICKUP Probe #1, set
point #3 pickup
temperature
5/nnn
where nnn=0 to 160
6 SP13 DRPOUT Probe #1 set
point #3 dropout
temperature
6/nnn
where nnn=0 to 160
7 SP14 PICKUP Probe #1, set
point #3 pickup
temperature
7/nnn
where nnn=0 to 160
73 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
8 SP14 DRPOUT Probe #1 set
point #3 dropout
temperature
8/nnn
where nnn=0 to 160
9 SP21 PICKUP Probe #2, set
point #1 pickup
temperature
9/nnn
where nnn=0 to 160
DO NOT SET IF SINGLE
PROBE
10 SP21 DRPOUT Probe #2 set
point #1 dropout
temperature
10/nnn
where nnn=0 to 160
DO NOT SET IF SINGLE
PROBE
11 SP22 PICKUP Probe #2, set
point #2 pickup
temperature
11/nnn
where nnn=0 to 160
DO NOT SET IF SINGLE
PROBE
12 SP22 DRPOUT Probe #2 set
point #2 dropout
temperature
12/nnn
where nnn=0 to 160
DO NOT SET IF SINGLE
PROBE
13 SP23 PICKUP Probe #2, set
point #3 pickup
temperature
13/nnn
where nnn=0 to 160
DO NOT SET IF SINGLE
PROBE
14 SP23 DRPOUT Probe #2 set
point #3 dropout
temperature
14/nnn
where nnn=0 to 160
DO NOT SET IF SINGLE
PROBE
15 SP24 PICKUP Probe #2, set
point #3 pickup
temperature
15/nnn
where nnn=0 to 160
DO NOT SET IF SINGLE
PROBE
16 SP24 DRPOUT Probe #2 set
point #3 dropout
temperature
16/nnn
where nnn=0 to 160
DO NOT SET IF SINGLE
PROBE
74 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
17 WSP1 PICKUP Calculated
winding pickup
temperature
17/nnn
where nnn=0 to 160
SET ONLY IF Aux CT avail.
18 WSP1 DRPOUT Calculated
winding dropout
temperature
18/nnn
where nnn=0 to 160
SET ONLY IF Aux CT avail.
19 WSP2 PICKUP Calculated
winding pickup
temperature
19/nnn
where nnn=0 to 160
SET ONLY IF Aux CT avail.
20 WSP2 DRPOUT Calculated
winding dropout
temperature
20/nnn
where nnn=0 to 160
SET ONLY IF Aux CT avail.
21 WSP3 PICKUP Calculated
winding pickup
temperature
21/nnn
where nnn=0 to 160
SET ONLY IF Aux CT avail.
22 WSP3 DRPOUT Calculated
winding dropout
temperature
22/nnn
where nnn=0 to 160
SET ONLY IF Aux CT avail.
23 WSP4 PICKUP Calculated
winding pickup
temperature
23/nnn
where nnn=0 to 160
SET ONLY IF Aux CT avail.
24 WSP4 DRPOUT Calculated
winding dropout
temperature
24/nnn
where nnn=0 to 160
SET ONLY IF Aux CT avail.
25 LTCDIFF PICKUP LTC Differential
pickup
temperature
25/-nn or 25/nn
where nn=0 to 20
DO NOT SET IF SINGLE
PROBE
26 LTCDIFF
DRPOUT
LTC Differential
drop out
temperature
26/-nn or 26/nn
where nn=0 to 20
DO NOT SET IF SINGLE
PROBE
27 LTCPUTMR LTC Pickup
Timer in minutes
27/nnn
where nnn=0 to 999
DO NOT SET IF SINGLE
PROBE
28 LSP1 PICKUP Load pickup
current
28/n.n
where n.n=0.0 to 9.9
SET ONLY IF Aux CT avail.
75 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
29 LSP1 DRPOUT Load dropout
current
29/n.n
where n.n=0.0 to 9.9
SET ONLY IF Aux CT avail.
30 LSP2 PICKUP Load pickup
current
30/n.n
where n.n=0.0 to 9.9
SET ONLY IF Aux CT avail.
31 LSP2 DRPOUT Load dropout
current for LSP2
31/n.n
where n.n=0.0 to 9.9
SET ONLY IF Aux CT avail.
32 LOAD PICKUP
TMR1
Load pickup
timer for SP1
32/nnn
where n=0 to 255 seconds
SET ONLY IF Aux CT avail.
33 LOAD PICKUP
TMR2
Load dropout
current for SP2
33/nnn
where n=0 to 255 seconds
SET ONLY IF Aux CT avail.
34 OUT1 PICKUP
TMR
Delays activation
of an output
34/nnn
where n=0 to 255 seconds
35 OUT1
AUTO/MANUAL
Operate Output
in AUTO or
MANUAL control
35/0: AUTO (uses
programmable logic
35/1: MANUAL (control
through front panel)
36 OUT1 xxxxx (n)
w/ALRM
Controls
Behavior of
output when
Device or Temp
Alarm
36/0: OUT1 UNCHG (0) w/ALRM
36/1: OUT1 PCKUP (1) w/ALRM
36/2: OUT1 SUPVS (2) w/ALRM
37 OUT2 PICKUP
TMR
Delays activation
of an output
37/nnn
where n=0 to 255 seconds
38 OUT2
AUTO/MANUAL
Operate Output
in AUTO or
MANUAL control
38/0: AUTO (uses
programmable logic
38/1: MANUAL (control
through front panel)
76 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
39 OUT2 xxxxx (n)
w/ALRM
Controls
Behavior of
output when
Device or Temp
Alarm
39/0: OUT2 UNCHG (0) w/ALRM
39/1: OUT2 PCKUP (1) w/ALRM
39/2: OUT2 SUPVS (2) w/ALRM
40 OUT3 PICKUP
TMR
Delays activation
of an output
40/nnn
where n=0 to 255 seconds
41 OUT3
AUTO/MANUAL
Operate Output
in AUTO or
MANUAL control
41/0: AUTO (uses
programmable logic
41/1: MANUAL (control
through front panel)
42 OUT3 xxxxx (n)
w/ALRM
Controls
Behavior of
output when
Device or Temp
Alarm
42/0: OUT3 UNCHG (0) w/ALRM
42/1: OUT3 PCKUP (1) w/ALRM
42/2: OUT3 SUPVS (2) w/ALRM
43 OUT4 PICKUP
TMR
Delays activation
of an output
43/nnn
where n=0 to 255 seconds
44 OUT4
AUTO/MANUAL
Operate Output
in AUTO or
MANUAL control
44/0: AUTO (uses
programmable logic
44/1: MANUAL (control
through front panel)
45 OUT4 xxxxx (n)
w/ALRM
Controls
Behavior of
output when
Device or Temp
Alarm
45/0: OUT4 UNCHG (0) w/ALRM
45/1: OUT4 PCKUP (1) w/ALRM
45/2: OUT4 SUPVS (2) w/ALRM
46 (!) SP11 (*/+) TO
OUTn
Programmable
logic for SP1146/0/0/0: SP11 not assigned
46/0/0/n: SP11 * to OUTn
46/1/0/n: !SP11 * to OUTn
46/0/1/n: SP11 + to OUTn
46/1/1/n: !SP11 + to OUTn
where n=1,2,3,4
77 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
47 (!) SP12 (*/+) TO
OUTn
Programmable
logic for SP1247/0/0/0: SP12 not assigned
47/0/0/n: SP12 * to OUTn
47/1/0/n: !SP12 * to OUTn
47/0/1/n: SP12 + to OUTn
47/1/1/n: !SP12 + to OUTn
where n=1,2,3,4
48 (!) SP13 (*/+) TO
OUTn
Programmable
logic for SP1348/0/0/0: SP13 not assigned
48/0/0/n: SP13 * to OUTn
48/1/0/n: !SP13 * to OUTn
48/0/1/n: SP13 + to OUTn
48/1/1/n: !SP13 + to OUTn
where n=1,2,3,4
49 (!) SP14 (*/+) TO
OUTn
Programmable
logic for SP1449/0/0/0: SP14 not assigned
49/0/0/n: SP14 * to OUTn
49/1/0/n: !SP14 * to OUTn
49/0/1/n: SP14 + to OUTn
49/1/1/n: !SP14 + to OUTn
where n=1,2,3,4
50 (!) SP21 (*/+) TO
OUTn
Programmablelogic for SP21
DO NOT USE
FOR SINGLE
PROBE
50/0/0/0: SP21 not assigned
50/0/0/n: SP21 * to OUTn
50/1/0/n: !SP21 * to OUTn
50/0/1/n: SP21 + to OUTn
50/1/1/n: !SP21 + to OUTn
where n=1,2,3,4
51 (!) SP22 (*/+) TO
OUTn
Programmablelogic for SP22
DO NOT USE
FOR SINGLE
PROBE
51/0/0/0: SP22 not assigned
51/0/0/n: SP22 * to OUTn
51/1/0/n: !SP22 * to OUTn
51/0/1/n: SP22 + to OUTn
51/1/1/n: !SP22 + to OUTn
where n=1,2,3,4
78 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
52 (!) SP23 (*/+) TO
OUTn
Programmablelogic for SP23
DO NOT USE
FOR SINGLE
PROBE
52/0/0/0: SP23 not assigned
52/0/0/n: SP23 * to OUTn
52/1/0/n: !SP23 * to OUTn
52/0/1/n: SP23 + to OUTn
52/1/1/n: !SP23 + to OUTn
where n=1,2,3,4
53 (!) SP24 (*/+) TO
OUTn
Programmablelogic for SP24
DO NOT USE
FOR SINGLE
PROBE
53/0/0/0: SP24 not assigned
53/0/0/n: SP24 * to OUTn
53/1/0/n: !SP24 * to OUTn
53/0/1/n: SP24 + to OUTn
53/1/1/n: !SP24 + to OUTn
where n=1,2,3,4
54 (!) LTCDIFF (*/+)
TO OUTn
Programmablelogic forLTCDIFF
DO NOT USE
FOR SINGLE
PROBE
54/0/0/0: LTCDIFF not assigned
54/0/0/n: LTCDIFF * to OUTn
54/1/0/n: !LTCDIFF * to OUTn
54/0/1/n: LTCDIFF + to OUTn
54/1/1/n: !LTCDIFF + to OUTn
where n=1,2,3,4
55 (!) WSP1 (*/+) TO
OUTn
Programmablelogic for WSP1
SET ONLY IF
Aux CT avail.
55/0/0/0: WSP1 notassigned
55/0/0/n: WSP1 * to OUTn
55/1/0/n: !WSP1 * to OUTn
55/0/1/n: WSP1 + to OUTn
55/1/1/n: !SP23 + to OUTn
where n=1,2,3,4
56 (!) WSP2 (*/+) TO
OUTn
Programmablelogic for WSP2
SET ONLY IF
Aux CT avail.
56/0/0/0: WSP2 notassigned
56/0/0/n: WSP2 * to OUTn
56/1/0/n: !WSP2 * to OUTn
56/0/1/n: WSP2 + to OUTn
56/1/1/n: !WSP2 + to OUTn
where n=1,2,3,4
79 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
57 (!) WSP3 (*/+) TO
OUTn
Programmablelogic for SP3
SET ONLY IF
Aux CT avail.
57/0/0/0: WSP3 notassigned
57/0/0/n: WSP3 * to OUTn
57/1/0/n: !WSP3 * to OUTn
57/0/1/n: WSP3 + to OUTn
57/1/1/n: !WSP3 + to OUTn
where n=1,2,3,4
58 (!) WSP4 (*/+) TO
OUTn
Programmablelogic for SP3
SET ONLY IF
Aux CT avail.
58/0/0/0: WSP4 notassigned
58/0/0/n: WSP4 * to OUTn
58/1/0/n: !WSP4 * to OUTn
58/0/1/n: WSP4 + to OUTn
58/1/1/n: !WSP4 + to OUTn
where n=1,2,3,4
59 (!) LSP1 (*/+) TO
OUTn
Programmablelogic for LSP1
SET ONLY IF
Aux CT avail.
59/0/0/0: LSP1 not assigned
59/0/0/n: LSP1 * to OUTn
59/1/0/n: !LSP1 * to OUTn
59/0/1/n: LSP1 + to OUTn
59/1/1/n: !LP1 + to OUTn
where n=1,2,3,4
60 (!) LSP2 (*/+) TO
OUTn
Programmablelogic for LSP2
SET ONLY IF
Aux CT avail.
60/0/0/0: LSP2 not assigned
60/0/0/n: LSP2 * to OUTn
60/1/0/n: !LSP2 * to OUTn
60/0/1/n: LSP2 + to OUTn
60/1/1/n: !LP2 + to OUTn
where n=1,2,3,4
61 (!) OUT1 (*/+) TO
OUTn
Programmable
logic for OUT161/0/0/0: OUT1 not assigned
61/0/0/n: OUT1 * to OUTn
61/1/0/n: !OUT1 * to OUTn
61/0/1/n: OUT1 + to OUTn
61/1/1/n: !OUT1 + to OUTn
where n=1,2,3,4
80 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
62 (!) OUT2 (*/+) TO
OUTn
Programmable
logic for OUT262/0/0/0: OUT2 not assigned
62/0/0/n: OUT2 * to OUTn
62/1/0/n: !OUT2 * to OUTn
62/0/1/n: OUT2 + to OUTn
62/1/1/n: !OUT2 + to OUTn
where n=1,2,3,4
63 (!) OUT3 (*/+) TO
OUTn
Programmable
logic for OUT363/0/0/0: OUT3 not assigned
63/0/0/n: OUT3 * to OUTn
63/1/0/n: !OUT3 * to OUTn
63/0/1/n: OUT3 + to OUTn
63/1/1/n: !OUT3 + to OUTn
where n=1,2,3,4
64 (!) OUT4 (*/+) TO
OUTn
Programmable
logic for OUT464/0/0/0: OUT4 not assigned
64/0/0/n: OUT4 * to OUTn
64/1/0/n: !OUT4 * to OUTn
64/0/1/n: OUT4 + to OUTn
64/1/1/n: !OUT4 + to OUTn
where n=1,2,3,4
65 TIME1 xx:xx TO
yy:yy Assigned TO
OUTn
Assigns TIME1
setpoint to OUTn65/xx:xx/yy:yy/n
where xx:xx= pickup time
yy:yy=dropout time
n=0,1,2,3,4
66 TIME2 xx:xx TO
yy:yy Assigned TO
OUTn
Assigns TIME2
setpoint to OUTn66/xx:xx/yy:yy/n
where xx:xx= pickup time
yy:yy=dropout time
n=0,1,2,3,4
67 TIME3 xx:xx TO
yy:yy Assigned TO
OUTn
Assigns TIME3
setpoint to OUTn67/xx:xx/yy:yy/n
where xx:xx= pickup time
yy:yy=dropout time
n=0,1,2,3,4
68 OUT1 INVERT Inverts OUT1 68/0: Not INVERT
68/1: INVERT
81 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
69 OUT2 INVERT Inverts OUT2 69/0: Not INVERT
69/1: INVERT
70 OUT3 INVERT Inverts OUT3 70/0: Not INVERT
70/1: INVERT
71 OUT4 INVERT Inverts OUT4 71/0: Not INVERT
71/1: INVERT
72 CT RATIO Sets ratio of
primary CT72/nnnn
where nnnn= 0 to 6000
73 RATED LOAD Sets rated load
in amps based
on mfg’s data
73/nnnnn
where nnnnn=0 to 65535
74 WINDING RISE Sets hotspot rise
in °C over top oil
at rated load
based on mfg’s
data
74/nn
where nn=0 to 99
75 WINDING TC Sets winding
time constant in
minutes based
on mfg’s data
75/nnn
where nnn=0 to 999
76 COOLING TYPE Sets cooling type 76/0: Not directed FOA/FOW
76/1: Directed FOA/FOW
77 TPROBE1 NAME Names PROBE1 77/0: TOP OIL
77/1: WINDING
77/2: AMBIENT
77/3: LTCDIFF (dual probe)
77/4: BOTMOIL
78 TPROBE2 NAME Names PROBE2 78/0: TOP OIL
78/1: WINDING
78/2: AMBIENT
78/3: LTCDIFF
78/4: BOTMOIL
82 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
79 ALTERNATE Alternate output
control79/0: DSBL
79/1: 1 – 2
79/2: 1 – 3
79/3: 1 – 4
79/4: 2 –3
79/5: 2 – 4
79/6: 3 - 4
80 ANALGOUT Sets scaling of
Analog output80/0: 0 to 1 mA
80/1: 4 to 20 mA
81 A1 SOURCE Selects data
source for
analog output A1
81/0: P1 (probe #1)
81/1: P2 (probe #2)
81/2: Calc winding temp.
82 A2 SOURCE Selects data
source for
analog output A2
82/0: P1 (probe #1)
82/1: P2 (probe #2)
82/2: Calc winding temp.
83 NODE ADDR Sets the node
address for
DNP3.0
communications
83/xxxxx
where xxxxx=0 to 65535
84 BAUD RATE Sets baud rate
for RS-485
interface
84/0: 1200 baud
84/1: 2400 baud
84/2: 9600 baud
84/3: 19200 baud
85 REMOTE BLK Enables blocking
of remote control
commands
through DNP3.0
85/0: Disables remote block
85/1: Enables remote block
86 TIME Sets time of day 86/xx:xx
where xx:xx= 00:00 to 23:59
83 V4.17,November 26, 2002
Setting # Setting Purpose Setting Range or Values Program to
87 DATE Sets date 87/mm/dd/yr
where mm=01-12
dd=01-31
yr=00 to 99
88 DEVICE ALRM Enables or
disables device
alarm
88/0: Enabled
88/1: Disabled
89 TEMPERATURE
ALRM
Enables or
disables
temperature
measurement
alarm
89/0: Enabled
89/1: Disabled
90 MANUAL ALRM Enables or
disables Manual
Mode alarm
90/0: Enabled
90/1: Disabled
91 PASSWORD Sets password 91/xxxx
where xxxx=0000 to 9999
6.4 Status
The user can display a snapshot of the measured temperature, temperature setpoints, recognized state of the optically isolated inputs, relay outputs, day setpoints, time set points and date set points as follows.
STATUSTEMPERATURE TOP OIL/LTCDIFF/WINDING 26/-1/25 °CTOP OIL MIN=25 °C @ 17:48 06/04/01TOP OIL MAX=26 °C @ 17/47 06/04/01LTCDIFF MIN=-5 °C @ 17:47 06/04/01LTCDIFF MAX=00 °C @ 17/47 06/04/01WINDING MIN=25 °C @ 17:47 06/04/01WINDING MAX=25 °C @ 17/47 06/04/01SP11=PICKED UPSP12=PICKED UPSP13=PICKED UPSP14=PICKED UPSP21=PICKED UPSP22=PICKED UPSP23=PICKED UPSP24=PICKED UPLTC=DRP'D OUTWSP1=PICKED UPWSP2=PICKED UP
84 V4.17,November 26, 2002
WSP3=PICKED UPWSP4=PICKED UPLSP1=PICKED UPLSP2=PICKED UPOUT1=DRP'D OUTOUT2=DRP'D OUTOUT3=DRP'D OUTOUT4=DRP'D OUTTIME1=DRP'D OUTTIME2=DRP'D OUTTIME3=DRP'D OUT
You must press the Enter key on your keyboard to display the Main Menu.
6.5 Upload Settings
Upload settings transfers the binary settings to a designated file in a PCconnected through the RS232 communications port. The TTC-1000 uses theXMODEM protocol which is supported both by HyperTerminal, Procomm as wellas other terminal emulation programs. Check sum error checking is employed.The procedure to upload a file is as follows:
1. Make sure your terminal emulation software is set to receive the file inXMODEM protocol.
2. Press 4 then the Enter key on the PC.
3. Using your terminal emulation software select download or receive file.
4. HyperTerminal will open a window to ask the directory the receive file willbe placed. Also you can select the XMODEM protocol if not alreadyselected. After clicking on the Receive button, HyperTerminal will thenopen a second window that allows you to enter the file name. Click on theOK button to start receiving.
Procomm will open a file directory window that allows you to select thepath and file. Clicking the Save button after entering the file name and orpath will start the upload process.
5. The file transfer windows will close and the main menu will automaticallyre-appear when the transfer is complete.
NOTE: HyperTerminal and Procomm first use CRC error checking for thefirst two message packet reception tries. A good packet should be receivedon the 2nd, 3rd or 4th try as both programs automatically switch to CheckSum error checking. The TTC-1000 has a built in 60 second delay to wait forretries. Should you wish to abort the reception, close all active terminalemulation receive windows and press the ESC key followed by the Enterkey on your PC.
85 V4.17,November 26, 2002
6.6 Download Settings
Download settings transfers the binary setting file on your PC to the TTC-1000connected through the RS232 communications port. The TTC-1000 uses theXMODEM protocol which is supported both by HyperTerminal, Procomm as wellas other terminal emulation programs. Check sum error checking is employed.The procedure to download a file is as follows:
1. Make sure your terminal emulation software is set to receive the file inXMODEM protocol.
2. Press 5 then the Enter key on the PC.
3. Using your terminal emulation software select upload or send file.
4. HyperTerminal will open a window to ask the directory the sent file will beread from. Also you can select the XMODEM protocol if not alreadyselected. Click the Send button to start the download process.
Procomm will open a file directory window that allows you to select thepath and file. Clicking the Open button after entering the file name and orpath will start the download process.
5. The file transfer windows will close and the message DOWNLOADSUCCESSFUL will be displayed. If the for some reason the downloadprocess times out, the message DOWNLOAD Not SUCCESSFUL will bedisplayed.
NOTE: The TTC-1000 will suspend all measurements and calculations oncedownloading is selected. The outputs will also be blocked during this time.The TTC-1000 transfers the new settings to a buffer register and willtransfer the settings to E2 memory only after the checksum test is passed.
6.7 Command Mode
The TTC-1000 permits remote reporting of temperature or resetting of the time ofday by sending a forward slash ‘/’ followed by either the characters T(temperature) or R (reset) followed by an ASCII carriage return character (13Hex).
Sending the string: /T+ causes the TTC-1000 to reply with the ambienttemperature. The temperature reported will be in the units (Celsius or Fahrenheit)that the TTC-1000 was programmed to display temperature. Units are nottransmitted. It is noted that the command /T is echoed back to the host computeralong with the measured temperature without a carriage return character. Forexample, if the TTC-1000 is measuring an ambient temperature of 68 ºF, theexact format of the reply for a single probe unit is:
86 V4.17,November 26, 2002
/T68
For dual probe versions, the display will read:
/T68/93
Where the first temperature is probe #1 and the second is probe #2.
Sending the string /R+ causes the TTC-1000 to reset the real time clock to00:00:00 hours. The date and day of the week are not changed. It is noted thatthe characters /R are echoed back to the host computer.
87 V4.17,November 26, 2002
7.0 DNP3.0 Profile Document
DNP V3.00DEVICE PROFILE DOCUMENT
Vendor Name: Advanced Power Technologies, LLC
Device Name: TTC-1000, Transformer Temperature Controller
Highest DNP Level Supported:
For Requests: Level 1
For Responses: Level 1
Device Function:
" Master
# Slave
Notable objects, functions, and/or qualifiers supported in addition to the Highest DNPLevels Supported (the complete list is described in the attached table):
See attached table.
Maximum Data Link Frame Size(octets):
Transmitted: 70
Received 37
Maximum Application Fragment Size (octets):
Transmitted: 51
Received: 22
Maximum Data Link Re-tries:
# None
" Fixed at ____
" Configurable from ___ to ____
Maximum Application Layer Re-tries:
# None
" Configurable
Requires Data Link Layer Confirmation:
$ Never
" Always
" Sometimes
" Configurable as: Never
88 V4.17,November 26, 2002
DNP V3.00DEVICE PROFILE DOCUMENT
Requires Application Layer Confirmation:
$ Never
" Always
" When reporting Event Data
" When sending multi-fragment responses
" Sometimes
" Configurable
Timeouts while waiting for:Data Link Confirm: $ None " Fixed at ____ " Variable "
ConfigurableComplete Appl. Fragment: # None " Fixed at ____ " Variable
"Configurable
Application Confirm: $ None " Fixed at ____ " Variable "Configurable
Complete Appl. Response:# None " Fixed at ____ " Variable"Configurable
Others:__________________________________________________
Sends/Executes Control Operations:
WRITE Binary Outputs #Never "Always " Sometimes " Configurable
SELECT/OPERATE "Never #Always " Sometimes " Configurable
DIRECT OPERATE "Never #Always " Sometimes " Configurable
DIRECT OPERATE – NO ACK "Never # Always " Sometimes
"Configurable
Count > 1 $Never "Always " Sometimes " Configurable
Pulse On "Never #Always " Sometimes " Configurable
Pulse Off "Never #Always " Sometimes " Configurable
Latch On "Never #Always " Sometimes " Configurable
Latch Off "Never #Always " Sometimes " Configurable
Queue #Never "Always " Sometimes " Configurable
Clear Queue #Never "Always " Sometimes " Configurable
89 V4.17,November 26, 2002
DNP V3.00DEVICE PROFILE DOCUMENT
Reports Binary Input Change Eventswhen no specific variation requested:
# Never
" Only time-tagged
" Only non-time-tagged
" Configurable
Reports time-tagged Binary Input ChangeEvents when no specific variation requested:
# Never
" Binary Input Change With Time
" Binary Input Change With Relative Time
" Configurable (attach explanation)
Sends Unsolicited Responses:
# Never
" Configurable
" Only certain objects
" Sometimes (attach explanation)
" ENABLE/DISABLEUNSOLICITED Function codessupported
Sends Static Data in Unsolicited Responses:
# Never
" When Device Restarts
" When Status Flags Change
No other options are permitted.
Default Counter Object/Variation:
# No Counters Reported
" Configurable
" Default Object: 20 and 21
Default Variation:
" Point-by-point list attached
Counters Roll Over at:
# No Counters Reported
" Configurable (attach explanation)
" 16 Bits
" 32 Bits
" Other Value: _____
" Point-by-point list attached
Sends Multi-Fragment Responses:
" Yes
# No
90 V4.17,November 26, 2002
DNP V3.00DEVICE PROFILE DOCUMENT
Sequential File Transfer Support:
Append File Mode " Yes # No
Custom Status Code Strings " Yes # No
Permissions Field " Yes # No
File Events Assigned to Class " Yes # No
File Events Poll Specifically " Yes # No
File Events Send Immediately " Yes # No
Multiple Blocks in a Fragment " Yes # No
Max Number of Files Open 0
IMPLEMENTATION TABLE
OBJECTREQUEST
(supported)
RESPONSE
(may generate)
Object
Number
Variation
NumberDescription
Function
Codes (dec)
Qualifier Codes
(hex)
Function
Codes (dec)
Qualifier Codes
(hex)
10 0 Binary Output Status (Variation 0 is
used to request default variation)
1 (read) 06 (no range, or all)
12 1 Control Relay Output Block 3 (select)
4 (operate)
5 (direct op)
6 (dir. op, noack)
17, 28 129 (response) echo of request
60 1 Class 0 Data 1 (read) 06
80 1 Internal Indications 2 00 (start-stop)
91 V4.17,November 26, 2002
TTC-1000 Data Map
Index # DNP ObjectGroup,Variation
Description
00 01,02 State of Set Point SP11 (Probe 1, Set Point 1), 0-Dropped Out, 1-Picked Up01 01,02 State of Set Point SP12 (Probe 1, Set Point 2), 0-Dropped Out, 1-Picked Up02 01,02 State of Set Point SP13 (Probe 1, Set Point 3), 0-Dropped Out, 1-Picked Up03 01,02 State of Set Point SP14 (Probe 1, Set Point 4), 0-Dropped Out, 1-Picked Up04 01,02 State of Set Point SP21 (Probe 2, Set Point 1), 0-Dropped Out, 1-Picked Up05 01,02 State of Set Point SP22 (Probe 2, Set Point 2), 0-Dropped Out, 1-Picked Up06 01,02 State of Set Point SP23 (Probe 2, Set Point 3), 0-Dropped Out, 1-Picked Up07 01,02 State of Set Point SP24 (Probe 2, Set Point 4), 0-Dropped Out, 1-Picked Up08 01,02 State of Set Point WSP1 (Winding Set Point 1), 0-Dropped Out, 1-Picked Up09 01,02 State of Set Point WSP2 (Winding Set Point 2), 0-Dropped Out, 1-Picked Up10 01,02 State of Set Point WSP3 (Winding Set Point 3), 0-Dropped Out, 1-Picked Up11 01,02 State of Set Point WSP4 (Winding Set Point 4), 0-Dropped Out, 1-Picked Up12 01,02 State of Set Point LSP1 (Load Set Point 1), 0-Dropped Out, 1-Picked Up13 01,02 State of Set Point LSP2 (Load Set Point 2), 0-Dropped Out, 1-Picked Up14 01,02 State of Set Point LTCDIFF (LTC Set Point ), 0-Dropped Out, 1-Picked Up15 01,02 State of Output #1 (OUT1), 0-Dropped Out, 1-Picked Up16 01,02 State of Output #2 (OUT2), 0-Dropped Out, 1-Picked Up17 01,02 State of Output #3 (OUT3), 0-Dropped Out, 1-Picked Up18 01,02 State of Output #4 (OUT4), 0-Dropped Out, 1-Picked Up19 01,02 State of Set Point TIME1 (Time Set Point 1), 0-Dropped Out, 1-Picked Up20 01,02 State of Set Point TIME2 (Time Set Point 2), 0-Dropped Out, 1-Picked Up21 01,02 State of Set Point TIME3 (Time Set Point 3), 0-Dropped Out, 1-Picked Up22 01,02 State of Device Alarm, 0-No Alarm, 1-Alarm23 01,02 State of Temperature Probe Alarm, 0-No Alarm, 1-Alarm24 01,02 State of Remote Block, 0-Remote Block Disabled, 1-Remote Block Enabled
00 12,01 OUT1 Control, 1-remote on, 0-local control01 12,01 OUT2 Control, 1-remote on, 0-local control02 12,01 OUT3 Control, 1-remote on, 0-local control03 12,01 OUT4 Control, 1-remote on, 0-local control
00 30,04 Probe 1 Temperature01 30,04 Probe 2 Temperature02 30,04 Calculated Winding Hotspot Temperature03 30,04 Measured Load Current04 30,04 Probe 1 Name, 0-Top Oil, 1-Winding, 2-Ambient, 3-LTCDIFF, 4-BOTMOIL05 30,04 Probe 2 Name, 0-Top Oil, 1-Winding, 2-Ambient, 3-LTCDIFF, 4-BOTMOIL
![[TTC Rules below Quy Định TTC kéo xuống dưới] · [TTC Rules below – Quy Định TTC kéo xuống dưới] Thus, gossiping or backbiting about other person, staff or students](https://static.documents.pub/doc/80x56/5f09d2e47e708231d428a927/ttc-rules-below-quy-nh-ttc-ko-xung-di-ttc-rules-below-a-quy.jpg)
