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USER'S MANUAL ZERO-UP 200W/400W/800W Programmable DC Power Supplies Constant Voltage/Constant Current Built-in RS232 & RS485 Interface with GPIB option. TESTING EQUIPMENT 65SA LISTED US C TUV Rheinland geprufte Sicherheit .. ..
Transcript

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USER'S MANUAL

ZERO-UP 200W/400W/800WProgrammable DC Power SuppliesConstant Voltage/Constant Current

Built-in RS232 & RS485 Interfacewith GPIB option.

TESTING EQUIPMENT

65SA

LISTED

USC

TUV Rheinland geprufte Sicherheit

....

AD

1106

ZERO-UP 200W/400W/800WProgrammable DC Power Supplies UP

GLOBAL NETWORK GLOBAL NETWORK GLOBAL NETWORKEurope / North America Asia / Far East / Middle East

Lambda ScandinaviaPO Box 546Rallarvägen 41SE-184 25 Akersberga, SwedenTel: +46 854 084 990Fax: +46 854 066 096www.lambda-scandinavia.com

SCANDINAVIA

Lambda GmbHKarl-Bold-Str.40,D-77855 Achern, GermanyTel: +49-7841-666-0 Fax: +49-7841-500-0E-mail: [email protected]

GERMANY

Lambda UKKingsley Avenue Ilfracombe, DevonEX 34 8ES United KingdomTel: +44-1271-856666 Fax: +44-1271-864894E-mail: [email protected]

UK

Shanghai Office of Wuxi Nemic-Lambda Electronic Co. Ltd.4F 2008 Hongmei Bldg, Hongmei Road,Cao He Jing Hi-Tech Park,Shanghai, China 200233Tal: +86-21-6485-0777 Fax: +86-21-6485-0666

Densei-Lambda K.K. Beijing OfficeRoom 818 Office Tower One, Beijing Junefield Plaza,No.6 Xuanwumenwai St.,Xuanwu District, Beijing P.R.CHINA 100052Tel: +86-10-6310-4872 Fax: +86-10-6310-4874www.densei-lambda.com.cn

CHINA

Densei Lambda Hong Kong BranchRoom. 8, 27/F, Mega Trade Center1 Mei Wan St. Tsuen Wan, N.T. Hong KongTel: +852-2420-6693 Fax: +852-2420-3362www.densei-lambda.com

HONG KONG

Densei Lambda K.K. Korea Branch6F Songok Bldg. 4-1 Soonae-DongPundang-Gu, Songnam-Shi Kyonggi-Do, 463-020 KoreaTel: +82-2-556-1171 Fax: +82-2-555-2706www.densei-lambda.co.kr

KOREA

Nemic-Lambda (M) SDN. BHD.No.7.3, 7th Floor, Jaya Shopping Center,Jalan Semangat Section 14, 46100Petaling Jaya Selangor, D.E, MalaysiaTel: +60-3-7957-8800 Fax: +60-3-7958-2400www.densei-lambda.com

MALAYSIA

Nemic-Lambda (S) PTE Ltd.Blk 1008 Toa Payoh North # 06-01/08Singapore 318996Tel: +65-6251-7211 Fax: +65-6250-9171www.densei-lambda.com

SINGAPORE

Nemic Lambda Ltd.Sales Office:Kibbutz Givat Hashlosha Tel-Aviv 48800, IsraelTel: +972-3-9024-333 Fax: +972-3-9024-777Plant:POB 500 Karmiel Industrial Zone 20101, IsraelTel: +972-4-9887-491 Fax: +972- 4-9583-347E-mail: [email protected]

ISRAEL

Lambda S.r.l.Via Pellizza da Volpedo, 53IT20092 Cinisello Balsamo, Milano, ItalyTel: +39-02-6129-3863 Fax: +39-02-6129-0900www.lambda-italy.com

ITALY

Lambda SAS,ZAC des DelachesBP 1077 - Gometz le Chatel91940 LES ULISTel: +33 1 60 12 71 65Fax: +33 1 60 12 71 66www.lambda-f.com

FRANCE

Densei Lambda KK,5F Dempa Bldg, 1-11-15 Higashigotanda,Shinagawa-Ku, Tokyo 141-0022, JapanTel: +81 3 3447 4693Fax: +81 3 3447 4750Internet: www.densei-lambda.com

JAPAN

Lambda GmbHAredstrasse 22,A - 2544 Leobersdorf, AustriaTel: +43 - 2256 - 655 84 Fax: +43 - 2256 - 645 12E-mail: [email protected]

AUSTRIA

Lambda Americas, Inc.405 Essex Rd. Neptune, NJ 07753Tel: +1-732-922-9300 Fax: +1-732-922-1441E-mail: [email protected]

NORTH AMERICALambda Americas, Inc.3055 Del Sol BoulevardSan Diego, CA 92154Tel: +1-800-LAMBDA-4Tel: +1-619-575-4400Fax: +1-619-429-1011www.lambdapower.com

We Nemic-Lambda Ltd., located at Karmiel Industrial Zone, Israel, declare under our soleresponsibility that the product:

Product name: ProgrammableRegulatedPowerSupplies, ZUP Series

Models:

conforms to the following product specifications:

Safety: EN61010-1:2001

Electromagnetic Emissions:EN61326:1997:A3:2003which covers testing to the following standards:

EN55011:1998:A2:2002 ConductedEmissions:ClassBRadiatedEmissions:ClassA

IEC61000-4-2:1995 4.0KVCD, 4.0KVAD Level 2IEC61000-4-3:1995 3V/m Level 2IEC61000-4-4:1995 1.0KVACPower Lines Level 2

0.5KVCommunication LinesIEC61000-4-5:1995 2.0KVACPower Lines Level 3

1.0KVAC toGround1.0KVCommunication Lines

IEC61000-4-6:1996 3V Level 2IEC61000-4-11:1994IEC61000-3-2:2000 ClassAIEC61000-3-3:1995:A1:2001

The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC, asamended by 93/68/EEC, and the EMC directive 89/336/EEC, as amended by 92/31/EEC and93/68/EEC for Electrical Equipment used in InformationTechnology environments, and carries theCEmark accordingly.Our authorized representative in the EU is Coutant Lambda Limited, located at Kingsley Avenue,Ilfracombe, Devon EX34 8ES, UK. Further, all products covered by this declaration are manufacturedby processes which ensure continued compliance of the products with the requirements of the Lowvoltage and theEMCdirectives.

NameofAuthorizedSignatory:

Signature ofAuthorizedSignatory:

Position ofAuthorizedSignatory:

Date:

Placewhere signed:

Martin Southam

Director ofMarketing, Coutant Lambda

June 1, 2006

Ilfracombe,UK

ZUP6-33ZUP10-20ZUP20-10ZUP36-6ZUP60-3.5ZUP80-2.5ZUP120-1.8

ZUP6-66ZUP10-40ZUP20-20ZUP36-12ZUP60-7ZUP80-5ZUP120-3.6

ZUP6-132ZUP10-80ZUP20-40ZUP36-24ZUP60-14

KARMIEL INDUSTRIALZONE,POB500, ZC-20101, ISRAEL.TEL: 972-4-9887491 FAX: 972-4-9887487

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TABLE OF CONTENTS: ZUP SERIES

SAFETY INSTRUCTIONS .....................................................................WARRANTY ..........................................................................................

CHAPTER 1. General Information

CHAPTER 2. Specifications

CHAPTER 3. Installation

......................................................1.1 User manual content1.2 Introduction

1.2.1 General description1.2.2 Configurations1.2.3 Control via the serial communication port1.2.4 Output connections1.2.5 Analog voltage programming1.2.6 Parallel operation1.2.7 Cooling and mechanical construction .....................................

1.3 Accessories1.3.1 General1.3.2 Serial link cables1.3.3 AC cables1.3.4 Front panel outputs option

................................................................2.1 200W/400W Series

800W Series...................................................................................2.2 Supplemental characteristics .........................................................

.....................................................................3.1 General3.2 Initial inspection

3.2.1 Mechanical inspection3.2.2 Preparation for use

3.3 AC source requirements3.4 Cooling and placement3.5 Rack mounting3.6 Power connection3.7 Connecting the load .......................................................................

3.7.1 Selecting wire size3.7.2 Wire termination .....................................................................3.7.3 Single load connection, local sense3.7.4 Single load connection, remote sensing ................................3.7.5 Multiple load connections, radial distribution method3.7.6 Multiple load connections with distribution terminals .............3.7.7 Grounding outputs

3.8 External control connector3.8.1 General3.8.2 Pin description .......................................................................3.8.3 Technical description3.8.4 Default connections................................................................

3.9 Repackaging for shipment

pg. 2pg. 1

pg. 5

pg. 6

pg. 7

pg. 9pg. 11

pg. 12

pg.13

pg.14

pg.15

pg.16

pg.17

pg.18

Table 4-1: Front panel controls and indicators .......................................4.2.2 Rear panel ............................................................................4.2.3 Rear panel connections description .....................................

4.3 Turn-on Checkout Procedure4.3.1 General4.3.2 Prior to operation4.3.3 Constant Voltage check4.3.4 Constant Current check ........................................................4.3.5 OVP check4.3.6 UVP check4.3.7 Foldback check4.3.8 Output On/Off4.3.9 Address setting4.3.10 Local/Remote Operation

4.4 Local Operation ...............................................................................4.4.1 Introduction4.4.2 Constant Voltage Operation4.4.3 Constant Current Operation4.4.4 Automatic Crossover ..............................................................4.4.5 Over Voltage protection (OVP)4.4.6 Under Voltage Protection (UVP)4.4.7 Foldback Protection ................................................................4.4.8 Output On/Off Control4.4.9 Last Setting memory ...............................................................4.4.10 Output Voltage & Current programming by external resistor4.4.11 Output Voltage Programming by external voltage .................4.4.12 Output Current programming by external voltage4.4.13 Auto Parallel operation...........................................................4.4.14 Series Operation ....................................................................4.4.15 Output good signal.................................................................

.....................................5.1 Introduction5.2 Configuration

5.2.1 Address setting5.2.2 RS232 or RS485 selection5.2.3 Baud rate setting5.2.4 Local/remote selection

CHAPTER 5. RS232 & RS485 remote control

.................................................4.1 Introduction4.2 Controls and Indicators

4.2.1 Front Panel

CHAPTER 4. Operating Instructions.

pg.23

pg.22

pg.24pg.25

pg.26

pg.27

pg.28

pg.29

pg.30

pg.32

pg.33

pg.37

pg.38

pg.35

TABLE OF CONTENTS: ZUP SERIES3.10 Outline drawings: ZUP 200W & 400W series.................................3.11 Outline drawing: ZUP 800W series...............................................3.12 Outline drawing: front panel connector option ...............................

pg.19pg.20pg.21

5.4.1 Introduction5.4.2 RS485 cable5.4.3 Linking power supplies

5.5 ZUP series command set description5.5.1 ID control commands...............................................................5.5.2 Initialization control5.5.3 Output control..........................................................................5.5.4 Status control ..........................................................................5.5.4.1 Registers structure5.5.4.2 Status control commands ....................................................

5.6 Communication Protocol..................................................................5.6.1 General information5.6.2 Accessing a ZUP unit5.6.3 End of message5.6.4 Communication Test set up.................................................... pg.48

5.7.Service Request................................................................................. pg.49

................................................................... pg.506.1 Introduction6.2 Units under warranty6.3 Periodic Maintenance6.4 Adjustment and calibration6.5 Part replacement and repairs6.6 Fuse ratings

...................................................................... pg.51

CHAPTER 6. Maintenance

USER’S MANUAL INDEX

pg.45

pg.42

pg.46

pg.43

pg.47

5.7.1 Service Request (SRQ)5.7.2 Service Request message5.7.3 Service Request enable/disable commands

TABLE OF CONTENTS: ZUP SERIES5.3 Remote programming via RS232.....................................................

5.3.1 Introduction5.3.2 Rear panel connectors pinout5.3.3 RS232 cable ............................................................................5.3.4 Linking power supplies

5.4 Remote programming via RS485 .....................................................

pg.39

pg.40

pg.41

WARRANTY SERVICE

WARRANTY

DISCLAIMER

LIMITATION OF WARRANTY

TRADEMARK INFORMATION

This product must be returned to an authorized Nemic-Lambda service facility for repairs or otherwarranty service. For products returned to Nemic-Lambda for warranty service, the buyer shall prepayshipping charges to Nemic-Lambda and Nemic-Lambda shall pay the shipping charges to return theproduct to the buyer.

This Nemic-Lambda product is warranted against defects inmaterials and workmanship for a period ofthree years from date of shipment .During the warranty period, Nemic-Lambda will, at it’s option, eitherrepair or replace productswhich prove to be defective.

The information contained in this document is subject to change without notice. Nemic-Lambda shallnot be liable for errors contained in this document or for incidental or consequential damages inconnection with the furnishing, performance or use of this material. No part of this document may bephotocopied, reproduced or translated into another language without the prior written consent ofNemic-Lambda.

Thewarranty shall not apply to defects resulting from improper or inadequate usage ormaintenance bythe buyer , buyer supplied products or interfacing. The warranty shall not apply to defects resultingfrom unauthorized modifications or from operation exceeding the environmental specifications of theproduct.Nemic-Lambda does not warrant the buyers circuitry or malfunctions of Nemic-Lambda productsresulting from the buyer’s circuitry. Furthermore, Nemic-Lambda does not warrant any damageoccurring as a result of the buyer’s circuitry or the buyer’s - supplied products.Nootherwarranty is expressedor implied.

Microsoft andWindows are trademarks ofMicrosoft Corporation.

SAFETY INSTRUCTIONSCAUTION

INSTALLATION CATEGORY

GROUNDING

FUSES

LIVE CIRCUITS

PART SUBSTITUTIONS & MODIFICATIONS

ENVIRONMENTAL CONDITIONS

INPUT RATINGS

The following safety precaution must be observed during all phases of operation, service and repair ofthis equipment. Failure to comply with the safety precautions or warnings in this document violatessafety standards of design, manufacture and intended use of this equipment and may impair the built-inprotections within.Nemic-Lambda shall not be liable for user’s failure to comply with these requirements.

The ZUP Series has been evaluated to INSTALLATION CATEGORY II. Installation Category (overvoltage category) II: local level, appliances, portable equipment etc.. With smaller transient overvoltages than Installation Category (over voltage category) III.

This product is a Safety Class 1 instrument. To minimize shock hazard, the instrument chassis must beconnected to an electrical ground. The instrument must be connected to the AC power supply mainsthrough a three conductor power cable, with the ground wire firmly connected to an electrical ground(safety ground) at the power outlet.For instruments designed to be hard - wired to the supply mains, the protective earth terminal must beconnected to the safety electrical ground before an other connection is made. Any interruption of theprotective ground conductor, or disconnection of the protective earth terminal will cause a potentialshock hazard that might cause personal injury.

Fuse must be changed by authorized Nemic-Lambda service personnel only. For continued protectionagainst risk of fire, replace only with the same type and rating of fuse. Refer to maintenance instructionsin chapter 6 for fuse rating.

Operating personnel must not remove the instrument cover. No internal adjustment or componentreplacement is allowed by non-Nemic-Lambda qualified service personnel. Never replacecomponents with power cable connected. To avoid injuries, always disconnect power, dischargecircuits and remove external voltage sources before touching components.

Part substitutions and modifications are allowed by authorized Nemic-Lambda service personnel only.For repairs or modifications, the instrument must be returned to a Nemic-Lambda service facility.

The ZUP series safety approval applies to the following operating conditions:* Indoor use * Ambient temperature: 0 C to 50 C* Maximum relative humidity: 90% (no dew drop) * Altitude: up to 3,000 m* Pollution degree 2

O O

Do not use AC supply which exceeds the input voltage and frequency rating of this instrument. Theinput voltage and frequency rating of the ZUP Series is; 100-240V~, 50/60Hz. For safety reasons, themains supply voltage fluctuations should not exceed +/- 10% of nominal voltage.

SAFETY INSTRUCTIONSSAFETY SYMBOLS

Instructionmanual symbol. The instrument will bemarked with this symbol when it isnecessary for the user to refer to the instructionmanual.

Indicates hazardous voltage.

Indicates ground terminal.

The WARNING sign denotes a hazard.An attention to a procedure is called.Not following procedure correctly could result in personal injury.AWARNINGsign should not be skipped and all indicated conditionsmust befully understood andmet.

The CAUTION sign denotes a hazard.An attention to a procedure is called.Not following procedure correctly could result in damage to the equipment.Do not proceed beyond a CAUTION sign until all indicated conditions arefully understood andmet.

FCC COMPLIANCE NOTICE:Note: This equipment has been tested and found to comply with the limits for a ClassAdigitaldevice, pursuant to part 15 of the FCCRules. These limits are designed to provide reasonableprotection against harmful interference when the equipment is operated in a commercialenvironment. This equipment generates uses, and can radiate radio frequency energy and, ifnot installed and used in accordance with the instruction manual, may cause harmfulinterference to radio communications. Operation of this equipment in a residential area islikely to cause harmful interference in which case the user will be required to correct theinterference at his ownexpense.

!

WARNING

CAUTION

OUTPUT TERMINALS COVERModels up to 60V output voltage

After connection of the load wires ( refer to par. 3-7 ), attach the plastic cover to the rear panel of thepower supply, using two self tapping screws suppliedwith the unit. Refer to Fig. 1-1 for details.

Fig. 1-2:Outputwires connection

OUTPUTCONNECTORCOVER80Vand120Vmodels

MALE CONNECTOR (PSC1.5/3-M-PE , Phoenix)

FEMALE PLUG (PSC 1.5/3-F)

PLASTIC PLUG COVER

Wires : Copper , AWG16-30Tightening torque : 4lib-in

WARNINGHazardous voltages may exist at the output terminals.Attach the terminals cover, supplied with the unit, to the chassis after connecting the load wires asdescribed below.

Fig. 1-1: Terminals cover assembly

REAR PANEL

LOAD WIRES

PLASTIC COVER

SAFETY INSTRUCTIONS

+V-V

CHAPTER 1 GENERAL INFORMATION1.1 USER’S MANUAL CONTENT

1.2 INTRODUCTION

1.2.1 General description

1.2.2 Configurations

1.2.4 Output connections

1.2.5 Analog voltage programming

1.2.6 Parallel operation

1.2.3 Control via the serial communication port

This user’s manual contains the operating instructions, installation instructions and specifications ofthe ZUP series. For information related to operation with GPIB control, refer to Nemic-Lambda GP485user’s manual.

The ZUPseries are wide range output switching power supplies with laboratory performance. The ZUPseries is power factor corrected and operates from worldwide AC voltage range continuously. Outputvoltage and current are continuously displayed and LED indicators show the complete operating statusof the power supply. The front panel controls allow the user to set the output parameters, the protectionlevels (over-voltage / under-voltage)and arm the foldback protection to disable the output if the unitswitches from Constant-voltage mode to Constant-current mode.

The ZUPcan be configured into a programmable power system of up to 31 DC outputs using the built-inRS232 or RS485 communication port in the power supply. In a GPIB system the GP485 controller cancontrol up to 31 ZUPunits in a single GPIB address.

Output connections are made to rear panel bus-bars for models up to 60V and connector for the 80Vand 120V models. Either the positive or negative terminal may be grounded or the output may befloated. The maximum potential (including the output voltage) that either output terminal is from groundmust not exceed the rated output voltage. Local or remote sense may be used. In remote sense, themaximum voltage drop on each wire is 0.5V for models up to 60V and 2V for the 80V and 120V models.

Analog inputs are provided at the rear panel for analog voltage programming of output voltage andcurrent, and On/Off control. Inputs are provided for resistive programming of the output voltage andcurrent.

Zup units of the same output voltage and current rating can be paralleled in master-slave configurationwith automatic current sharing for power-up purposes.

The following parameters can be programmed via the serial communication port:

1. Output voltage setting2. Output current setting3. Output On/Off4.Arming or release of the foldback protection5. Over-voltage protection setting6. ‘Soft’ under-voltage limit7. Output voltage measurement

8. Output current measurement9. Power supply start-up mode

(last setting or safe mode)10. Over-voltage protection setting read11. Under-voltage limit read12. Remote/Local Control

1.3.1 General

1.3.4 Front Panel Outputs option

1.3.3 AC Cables

1.3.2 Serial link cables

1.3 ACCESSORIES

Accessories are deliveredwith the power supply or separately upon ordering.Beloware listed possible accessories and ordering numbers.

PARTNo. DESCRIPTION

NL100 19” rack, 3UheightNL200 Dual output packingNL101 Blank panel for 19” rackNL102 Additional instructionmanual

PART No. MARKET DESCRIPTION

ZUP/U USA 13A, 125V, unshielded, 2m typ. length, with IEC320 connector on one(NC301) side andNEMA-5-15Pconnector the on other side.

ZUP/E Europe 10A, 250V, unshielded, 2m typ. length, with IEC320 connector on one(NC302) side and INT’L7 standardVII, dual earthing on the other side.

ZUP/O General 10A, 250V, unshielded, 2m typ. length, with IEC320 connector on one(NC303) side and unterminated strippedwires on the other side.Use the cable

onlywith plug approved by the national safety standards of the countryof usage.

ZUP/J Japan 13A, 125Vunshielded, 2m typ. length, with IEC320 connector on one(NC305) side and Japan type plug on other side.

In cases where load connection at the front panel is required, optional Front Panel output Jacks for aload current of 20Amaximum is available. Please note that the power supply height is increased withthis option. Refer to outline drawing (par. 3.12) for details.

ORDERNo. DESCRIPTION

ZUP /L 20AFront PanelOutput Jacks

Serial link cable, for linking power supplies byRS485 communication is providedwith the power supplyaccording to order. Cable description: 0.5m typ. length, shielded, EIA-568Atype plugs, 8 contacts.Refer to par.5.3.4 , for details.

1.2.7 Cooling and mechanical constructionThe Zup series is fan cooled. Upon installation take care to allow free air flow into the power supply viathe front panel and out of the power supply via the rear panel. TheZUPseries is contained in a compact,lightweight packagewhich allows for easy installation and space saving in the application equipment.

CHAPTER 2 SPECIFICATIONS2.1 SPECIFICATIONS: 200W/400W Series

ZUP2

0-20

ZUP2

0-10

ZUP1

0-40

ZUP1

0-20

ZUP6

-66

ZUP6

-33

ZUP6

0-7

0~

70

~12

ZUP6

0-3.

5

0~

3.5

0~

621

643

221

042

0

ZUP3

6-12

ZUP3

6-6

0~

360

~60

ZUP1

20-

3.6

ZUP1

20-

1.8

ZUP8

0-5

ZUP8

0-2.

5V A W - - mV

mV

mS - - mS

mS

mS - - mA - - - - - - V - - - - - - A - - % A

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0-7

3.2

3.2

3.2

ZUP6

0-3.5

2.9

2.9

2.9

ZUP3

6-12

ZUP3

6-6

ZUP2

0-20

ZUP2

0-10

ZUP1

0-40

ZUP1

0-20

ZUP6

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0~50

C:1

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CO

30~90

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) refer

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ual

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( 0~4V

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it s,refer

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ual

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air b

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fanismou

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withinun

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FCC-A,V

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t-Cha

ssis:2

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t-Outpu

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t-outpu

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in.

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1min.

ZUP6

-33

3.2

3.2

2.9

2.9

3.2

3.2

2.9

2.9

2.1 SPECIFICATIONS: 200W/400W Series continuedZU

P120

-3.6

ZUP1

20-

1.8

ZUP8

0-5

ZUP8

0-2.5

Morethan

100M

Ohm

at25

Cand70%

R.H.

O

V A W - - mV

mV

mS - - mS

mS

mS - - mA - - - - - - V - - - - - - A - - % A

MODEL

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LTAG

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REG

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OVE

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(*4)

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RAT

URECOEF

FICIENT

TEMPE

RAT

UREDRIFT

(5Hz-1M

HzBa

ndwidth)

(pkto

pk20MHzBa

ndwidth)

LOAD

REG

ULA

TION

LINEREG

ULA

TION

RMSRIPPL

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INPU

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MONICS

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11.2/ 5

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4

0~24 30

11.2/ 5

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4

0~40

60

11.2/ 5

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79/ 8

2

0~80

100

11.2/ 5

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77/ 8

1

0~13

279

280

080

086

484

0

200

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74/ 7

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mno

load

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170-26

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0.01

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geinou

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8-ho

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0-40

ZUP1

0-80

ZUP6

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250

0-7.511008

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350

0-13

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605

400 0-24

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3digit s(6V ,

20V ,

36V ,

60V)

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)accuracy:0

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+/- 2

digit s

3.5digit s(132

A), a

llothe

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accuracy:0

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digit s

CV/CC,A

larm

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ON/OFF

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perature,F

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ack

85~26

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Class

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ad

500

0-40

0.2

750

70 0-66

0.2

0~6

0~10

0~20

0~36

0~60

2.1 SPECIFICATIONS: 800W Series

Bette

r tha

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8%of

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+40

mA

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volt s

tofullscale,

resistiveload

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setting

atmax.)

0.02

%+5m

V0.02

%+8m

V0.02

%+12

mV

0.02

%+26

mV

0.02

%+35

mV

- - - - - - Kg mm - - - - - - - - - - - - - - -

OPE

RAT

INGTE

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RAT

URE

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RAT

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STORAG

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2.1 SPECIFICATIONS: 800W Series continued

2.2 SUPPLEMENTAL CHARACTERISTICSThe supplemental characteristics give typical but non-warranted performance characteristics. Thesupplemental characteristics are useful in accessing applications for the power supply. Several kindsof supplemental characteristics are listed below.

1. EVALUATIONDATA: Typical performance of the power supply.2. RELIABILITYDATA: Reliability performance of the power supply.3. IEC1000DATA: Performance of the power supply under IEC1000 test conditions.4. EMIDATA: Typical EMI (conducted and radiated) performance of the power supply.

The supplemental characteristics data are held in each Nemic-Lambda sales and service facility. Forfurther details please contact theNemic-Lambdaoffice nearest you.

CHAPTER 3 INSTALLATION3.1 GENERAL

3.2 INITIAL INSPECTION

3.2.1 Mechanical inspection

3.2.2 Preparation for use

3.3 AC SOURCE REQUIREMENTS

3.4 COOLING & PLACEMENT

3.5 RACK MOUNTING

3.6 POWER CONNECTION

NOTE

CAUTION

This chapter contains instructions for initial inspection, preparation for use and repackaging forshipment. Connection toPC, linkingZUPunits and setting the address are described in chapter 5.

Prior to shipment this power supply was inspected and found free of mechanical or electrical defects.Upon unpacking of the power supply, inspect for any damagewhichmay have occurred in transit. Keepall packing materials until inspection has been completed. If any damage is detected, file a claim withthe carrier immediately and notify theNemic-Lambda sales or service facility nearest you.

Themechanical inspection should confirm that there is no exterior damage to the power supply such asbroken knobs or connectors and that the front panel andmeter face are not scratched or cracked.

In order to be operational the power supply must be connected to an appropriate AC source. The linevoltagemust be within the power supply specification. DONOTapply power before reading paragraph3.3.

The ZUP series can be operated from a nominal 100V to 240V, single phase, 47 ~ 63Hz. The inputvoltage range and current required for each model is specified in chapter 2. Make sure that underheavy load, theACvoltage supplied to the power supply does not fall below “low limit” specifications.

This power supply is fan cooled. Upon installation ensure sufficient space for air intake (front panel) andexhaust (rear panel). The power supply should be used in an area where the ambient temperaturedoes not exceed+50 CO

ZUPmodels can be mounted in a standard 19” rack (3U height). The 200W and 400Wmodels occupy1/6 rack length. The 800Wmodel occupies 1/3 rack length. The power supplies should be fixed by M4screws replacing the rubber feet on the bottomof the power supply. The screwsmust not protrudemorethan 6mm into the power supply. Refer to the outline drawing in this chapter formounting details.

Connection of this power supply to an AC power source shouldbe made by an electrician or other qualified personnel.

ZUP series power supplies generate a magnetic field which might affect theoperation of other instruments. If your equipment is susceptible to magnetic fields,

do not position adjacent to the ZUP.

This power supply is equipped with a three conductor power cable. The third conductor is the groundconductor. When the cable is plugged-in to an appropriate receptacle, the power supply is grounded.Under no circumstances should this power supply be operated without an adequate groundconnection. If a two contact receptacle is encountered, it must be replaced by a three contactreceptacle, properly grounded. This operation should be done by a qualified electrician. It isrecommended to keep the AC input wires separate from the DC output and signal wires to avoidinterference.To meet radiated EMI specification, the EMI suppressor clamp should be attached to the AC cable asclose as possible to theAC inlet of the power supply.

WARNING

WARNING

Some components inside the power supply are at AC voltage even when theOn/Off switch is in the “Off” position. To avoid the hazard of electric shock,disconnect line cord and load and wait 2 minutes before removing cover.

Turn off the AC input power before making or changing any rear panel connection.Make sure that all connections are securely tightened before applying power.There is a potential shock hazard when using a power supply with a rated output greater than 40V.Use load wiring with a minimum insulation rating equivalent to the maximum output voltage of thepower supply.

3.7 CONNECTING THE LOAD

3.7.1 Selecting wire sizeTwo factorsmust be considered in selectingwire size.1. Wires should be at least heavy enough to avoid overheating while carrying the power supply loadcurrent at the rated load, or the current that would flow in the event the load wire were shorted,whichever is greater.2.Wire size should be selected to enable voltage drop per lead to be less than 0.5V at the rated current.It is recommended to minimize voltage drop on the wires to prevent excessive output powerconsumption from the power supply.Please refer to Tables 3-1 and 3-2 for maximum wire length to limit voltage drop by American andEuropeanmeasurements respectively.

Table 3-1: Maximum wire length for0.5V drop on lead (in feet)

wire

size

AWG

5A40 20 10 4 163 31 15 6 1.7100 50 25 10 3160 80 40 16 5253 126 63 25 8400 200 100 40 13640 320 160 64 211016 508 254 102 34

14121086420

2.5261.5890.99940.62850.39530.24860.15640.0983

Maximum length in feet -to limit voltage drop to 0.5V or less

10A 20A 50A 150ARes

istivity

Ohm

/kft

13

For current not shown in tables 3-1 and 3-2 use formula: Maximum length=500/(current*resistivity)Where current is expressed in ampers and resistivity in ohms/kmor ohms/1000ft.

Table 3-2: Maximum wire length for 0.5V drop on lead (in meters)

cros

sse

ct.

area

(mm

2)

5A12.2 6.1 3.0 1.2 0.419.6 9.8 4.9 2.0 0.729.5 14.7 7.4 2.9 1.051.3 25.6 12.8 5.1 1.780.6 40.3 20.2 8.1 2.7125.8 62.9 31.4 12.6 4.2177.0 88.5 44.2 17.7 5.9

2.54610162535

8.215.093.391.951.240.7950.565

Maximum length in meters -to limit voltage drop to 0.5V or less

10A 20A 50A 150A

<

Res

istivity

Ohm

/km

3.7.2 Wire termination

3.7.3 Single load connection, Local Sensing

The wires should be properly terminated with terminals securely attached. DO NOT use nonterminatedwires for load connection at the power supply.

Fig. 3-1 illustrates the connection of a single load to the power supply using local sensing. Thisconnection is made via the “External Control Connector” located on the rear panel of the power supply.Local sensing is suitable for applicationswhere load regulation is not critical.

Fig. 3-1: Single load connection, Local Sensing

14

2

- LS- S

- V

- S+LS

+LS

- LS

+SOn/Off

+V

- S

COMOutput GoodPVRFVVCVPVRFIVCCPRCVP

EXTERNAL CONTROLCONNECTOR

(ZUP rear panel view)

LOADPOWERSUPPLY

+

_RCCP

1

CAUTIONAt local sensing, short between +LS or +S to -V or -S or -LS will cause damage to the

power supply. Reversing the sense wires might cause damage to the power supplyat local and remote sensing.

+ S

3.7.4 Single load connection, Remote Sensing

3.7.5 Multiple load connections, radial distribution method

Remote Sensing is used in cases where, in Constant Voltage mode the load regulation is important atthe load terminals. Use twisted or shielded wires to minimize noise pick-up. If shielded wires are used,the shield should be connected to the ground at one point, either the power supply chassis or the loadground. The optimal point for the shield ground should be determined by experimentation. At RemoteSensing, the maximum voltage drop allowed at the load wires is 0.5V per wire for 6V to 60V models and2V per wire for 80V and 120V models.

In cases of multiple loads connected to one supply, each load should be connected to the powersupply’s output terminals using separate pairs of wires. It is recommended that each pair of wires will beas short as possible and twisted or shielded to minimize noise pick-up and radiation. The sense wiresshould be connected to the power supply output terminals or to the load with the most critical loadregulation requirement.

Fig. 3-2: Remote Sensing, single load.

Fig. 3-3: Multiple load connections with distribution terminal

2

2

- LS

- LS

+ S

- V

- S

- S

+LS

+LS

+S

+S

On/Off

On/Off

+ V

- S

COM

COM

Output Good

Output Good

P

P

VRFV

VRFV

VCVP

VCVP

VRFI

VRFI

VCCP

VCCP

RCVP

RCVP

EXTERNAL CONTROLCONNECTOR

(ZUP rear panel view)

EXTERNAL CONTROLCONNECTOR

(ZUP rear panel view)

LOAD

LOAD #1

LOAD #2

LOAD #3

POWERSUPPLY

POWERSUPPLY

To Load Terminals

Shield

+

+

+

+

_

_

_

_

RCCP

RCCP

1

1

+S

- V

+LS

- LS

+V

- S

Fig. 3-5:

3.7.6 Multiple load connections with distribution terminals

3.7.7 Grounding outputs

3.8 EXTERNAL CONTROL CONNECTOR3.8.1 General

If remotely located output distribution terminals are used, the power supply output terminals should beconnected to the distribution terminals by a pair of twisted or shielded wires. Each load should beseparately connected to the remote distribution terminals. If Remote Sensing is required, the sensingwires should be connected to the distribution terminals or at themost critical load.

Either the positive or negative output terminals can be grounded. To avoid noise problems caused bycommon-mode current flowing from the load to ground, it is recommended to ground the outputterminal as close as possible to the power supply output.Always use two wires to connect the load to the power supply regardless of how the system isgrounded.

The external control connector, used for analog programming of the power supply, is located on therear panel of the unit,(Fig. 4-2, item4). The pin assignment is shown in Fig. 3-5 below.

The External Control Connector signals are connected to thenegative output terminal. If the negative output terminal isfloatedwith respect to chassis ground , those signalswill alsofloat at the same potential. Use appropriate safety measuresto prevent a shock hazard.

Fig. 3-4:Multiple load connectionswith distribution terminal

DISTRIBUTIONTERMINAL

LOAD #1

LOAD #2

LOAD #3

POWERSUPPLY

+

+

+

_

_

_

+S

- V- V

+V

+V

- S

To Dristribution Terminals

WARNINGThe maximum potential (including output voltage) that either output terminalis from ground, must not exceed the specified voltage on the front panel.

WARNING

1

14 13

2

2

- LS- S+LS+SOn/OffCOMOutput GoodPVRFVVCVPVRFIVCCPRCVP

EXTERNAL CONTROLCONNECTOR

(ZUP rear panel view)

RCCP1

External Control Connector pinassignment (ZUP rear panel view)

3.8.2 Pin Description

3.8.3 External Control Connector - Technical description1. Connector type : AMP, Part No: 5102617-5 14 contacts, double row.2. Receptacle : AMP, Part No: 87631-9, Polarized, 14 contacts, double row.3. Receptacle contacts : AMP, Part No: 87523-5 (strip form) or 87523-6 (loose piece).4. Wires : AWG: 24 to 20.5. Hand tool for wire connection : AMP, Part No: 90202-2.6. Applicator for stripper/crimper machine : AMP, Part No: 466905-1

# Name

1 RCVP

2 RCCP

3 VRFI

4 VCCP

5 VRFV

6 VCVP

7 OUTPUTGOOD

8 P

9 ON/OFF

10 COM

11 + LS

12 + S

13 - LS

14 - S

DescriptionResistive Constant Voltage programming

Resistive Constant Current programming

Reference voltage for Constant Current control. (connected toVCCP pin except external voltage or resistive programming).

Input of the Constant Current control circuit.

Reference voltage for Constant Voltage control. (connected toVCVP pin except external voltage or resistive programming).

Input of the Constant Voltage control circuit.

Open collector output. 0~0.8V during normal operation, open atfault condition (OVP, FOLD and Over-Temp.).

Parallel connection pin.

On/Off control pin.

Common pin for programming, On/off control and Output Goodsignal. Internally connected to - Sense.

Positive Local sensing pin.

Positive Sensing pin for remote sense operation.

Negative Local sensing pin.

Negative Sensing pin for remote sense operation.

4.4.10

4.4.10

4.4.10, 11, 12

4.4.10, 11, 12

4.4.10, 11, 12

4.4.10, 11, 12

4.4.15

4.4.13

4.4.8

4.4.10, 11, 124.4.8

3.7.3, 4, 5, 6

3.7.3, 4, 5, 6

3.7.3, 4, 5, 6

3.7.3, 4, 5, 6

Par.

Table 3-3: External Control connector pin description

CAUTIONCOM pin (10) is connected internally to the - Sense potential. Connection of the COM to another

potential or other than shown in this manual may cause damage to the power supply.

3.8.2 Pin Description

3.8.3 External Control Connector - Technical description1. Connector type : AMP, Part No: 5102617-5 14 contacts, double row.2. Receptacle : AMP, Part No: 87631-9, Polarized, 14 contacts, double row.3. Receptacle contacts : AMP, Part No: 87523-5 (strip form) or 87523-6 (loose piece).4. Wires : AWG: 24 to 20.5. Hand tool for wire connection : AMP, Part No: 90202-2.6. Applicator for stripper/crimper machine : AMP, Part No: 466905-1

# Name

1 RCVP

2 RCCP

3 VRFI

4 VCCP

5 VRFV

6 VCVP

7 OUTPUTGOOD

8 P

9 ON/OFF

10 COM

11 + LS

12 + S

13 - LS

14 - S

DescriptionResistive Constant Voltage programming

Resistive Constant Current programming

Reference voltage for Constant Current control. (connected toVCCP pin except external voltage or resistive programming).

Input of the Constant Current control circuit.

Reference voltage for Constant Voltage control. (connected toVCVP pin except external voltage or resistive programming).

Input of the Constant Voltage control circuit.

Open collector output. 0~0.8V during normal operation, open atfault condition (OVP, FOLD and Over-Temp.).

Parallel connection pin.

On/Off control pin.

Common pin for programming, On/off control and Output Goodsignal. Internally connected to - Sense.

Positive Local sensing pin.

Positive Sensing pin for remote sense operation.

Negative Local sensing pin.

Negative Sensing pin for remote sense operation.

4.4.10

4.4.10

4.4.10, 11, 12

4.4.10, 11, 12

4.4.10, 11, 12

4.4.10, 11, 12

4.4.15

4.4.13

4.4.8

4.4.10, 11, 124.4.8

3.7.3, 4, 5, 6

3.7.3, 4, 5, 6

3.7.3, 4, 5, 6

3.7.3, 4, 5, 6

Par.

Table 3-3: External Control connector pin description

CAUTIONCOM pin (10) is connected internally to the - Sense potential. Connection of the COM to another

potential or other than shown in this manual may cause damage to the power supply.

3.9 REPACKAGING FOR SHIPMENTTo ensure safe transportation of the instrument, it is recommended to use the original package. Theoriginal packaging material is reusable. If the original package is not available, contact the Nemic-Lambda Sales or service facility near you for details on obtaining suitable packaging and shippinginformation. Please attach a tag to the power supply describing the problem and specifying the owner,model number and serial number of the power supply.

3.8.4 External Control Connector - Default configuration connectionsThe external control connector is configured for Local sensing and no external On/Off control. Refer toFig: 3-6 below for the default configuration description. The default configuration is: Local sensing,Rear panel On/Off disabled (On/Off can be controlled by the Front panel or by the serial communicationport), and output voltage and current are controlled by the Front panel or by the serial communicationport. For other configurations, remove the contact that should be modified, and replace it with a newone with a suitable connection. Replacement contacts are supplied in the packaging of the powersupply.

Fig. 3-6:External Control connector - default configuration(ZUP rear panel view)1

14 13

2

- LS- S+LS+SOn/OffCOMOutput GoodPVRFVVCVPVRFIVCCPRCVPRCCP

3.10

OU

TLIN

ED

RA W

ING

SZUP200W

andZUP400W

Series

DIM

ENSI

ON

S:m

m200W

/400Wunit s:

70x124x350

WEI

GH

T:K

g200W

unit s:2.9

400W

unit s:3.2

20.0 20.0

13.013.0

59.5

30.0

(Note4)

70.0

201.5

11.0

+0.5 _

+

+

0.5

0.5

_

_

350.0+1

_

290.0+1

_+1

_

124.0

48.0

11.0

MountingHoles

TapM4x4marked‘A’

(See

note1)

Notes:

1.Mountingscrewsmustnot

protrude

morethan

6mm

intothepowersupply .

2.Use

M6or1/4”screwfor

load

wiresconnection,

enclosed

inthep ackage

attimeofshipment.

3.Recept acle:AM

P,87631-9,

14contact s,doublerow .

Pin:87523-5or87523-6

4.For6Vto60Vmodels.

5.Maleconnector(P .S.side):PSC1.5/3-M-PE,Phoenix

Accessories:

Femaleconnector(userside):PSC1.5/3-F,Phoenix

Strainreliefplastichousing.

RubberBum

pers

4places

marked‘B’

(removable)

10.6

BB

BB

A A

A A

48.4

_ +0.5

21.5

19.0

External

Control

Connector

(Note3)

IEC320

ACInlet

RS232/RS485

communication

connectors

+1 _131.0

A

ALM

CCCV

V

POW

ERSU

PPL Y

AD

DR

OVP

/UVP

V/A

FOLD

REM

OU

T

POW

ERN

E MIC

- LA

MB

DA

LTD

. H

25.0

17.5

(Note5)

(Note2)

131.01.0

6VTO

60V

MO

DEL

S

80V

AN

D12

0VM

OD

ELS

Rub

berB

umpe

rs:

4pl

aces

mar

ked

‘B’ (

rem

ovab

le)

3.11

OU

TLIN

ED

RA W

ING

SZU

P80

0WSe

ries

DIM

ENSI

ON

S:14

0x12

4x35

0m

m.

WEI

GH

T:5.

8kg

.

20.0

22.0 22.0

30.0

46.3

47.0

Exte

rnal

Con

trol

Con

nect

or(N

ote3

)

IEC

320

ACIn

let

RS2

32/R

S485

com

mun

icat

ion

conn

ecto

rs

REM

OVA

BLE

HAN

DLE

11.0

+1.0 _

350.

0+

1_

290.

0+

1_

139.5

107.5 Mou

ntin

gH

oles

:Ta

pM

4x

4m

arke

d‘A

’(S

eeno

te1)

Not

es:

1.M

ount

ing

scre

ws

mus

tnot

prot

rude

mor

eth

an6m

min

toth

epo

wer

supp

ly .

2.U

seM

8or

5/16

”scr

ewfo

rlo

adw

ires

conn

ectio

n,en

clos

edin

the

p ack

age

attim

eof

ship

men

t.

3.R

ecep

t acl

e:AM

P,87

631-

9,14

cont

acts

,dou

ble

row .

Pin:

8752

3-5

or87

523-

6.

140.

0+

0.5

_

+0.5 _124.0

+1.

0_

99.6

201.

50+

0.5

_59

.5

10.4

BB B

AA

AA

118.90_+0.5

B

18.5

POW

ER

20.0

+1.0 _131.0

Physical Dimensions in mm.

392.0 Max.

153.

0+

1.0

_

70.0 + 0.5_

Front Panel Output Jacks Option: available for ZUP200W , ZUP400W and ZUP800W series for 6V to 60Vmodels.

ZUP200/L and ZUP400/ L

Up to 20A output current via front panel jacks.

CAUTION: ZUP800 front panel output is protected against overcurrent by 25A 125V Fast acting fuse.For continued protection against risk of fire, replace only with same type and rating of fuse.

3.12 OUTLINE DRAWINGS

ZUP800/L

153.

0+

1.0

_

140.0 + 0.5_

This chapter describes the operating modes, controls and indicators of the ZUP power supply series.Details of local operation via the front panel and various modes of operation are described in thischapter, including remote analog control via the rear panel. For computer control via the Serial port(RS232 or RS485), refer to chapter 5.

CHAPTER 4 OPERATING INSTRUCTIONS

4.1 INTRODUCTION

4.2 CONTROLS AND INDICATORS

4.2.1 Front panel

Fig. 4-1: Front panel controls and indicators

8

9

10

11

12

13

1

2

3

7

4

6

5

Table 4-1: Front panel controls and indicators# Control/Indicator

1 AMPS Display

2 VOLTS Display

3 CV Indicator

4 CC Indicator

4.4.24.4.34.4.5

4.4.6

5.2.1

4.4.84.4.9

5.2.4

4.4.7

5 ADJUST knob(Rotary pulse generator)

6 ALM Indicator

7 OUT Pushbutton

8 REM Pushbutton

9 FOLD Pushbutton

Description

Actual output current display at normal operation. Whileadjusting the output current, the set value will be shown.The display will automatically return to show the actualcurrent approx. 3sec fromcompletion of adjustment.

Actual output voltage display at normal operation. Themeasurement circuits monitor the voltage at the sensingpoints, hence at remote sensing where there is voltagedrop on the load wires, the voltage at the power supplyoutput terminals will be higher than the displayed value.Attention should be taken not to exceed the output powerrating. While adjusting the output voltage, the set value willbe shown. The display will automatically return to show theactual voltage approx. 3sec after completion of adjustment.

CV LED indicates that the power supply is regulating it’soutput at a constant voltage.

CC LED indicates that the power supply is regulating it’soutput at a constant current.

The ADJUST knob functions to determine the followingoutput parameters:1.Output voltage adjust - as determined byV/Apushbutton2.Output current adjust - as determined byV/Apushbutton3.Over voltage protection adjust - as determined by

OVP/UVPpushbutton4.Under voltage soft limit adjust-as determined

byOVP/UVPpushbutton5.Address selectionALM indicates alarm caused by activation of one of thefollowing protections:* Over voltage protection* Over temperature protection* Foldback protection

Main function: Enable or disable the power supply output.Auxiliary function: Press and hold OUT pushbutton forapprox. 3sec to change function to select between safemode restart and automatic restart.

Main function: Select between local or remote operation.Auxiliary function: Press and hold REM pushbutton forapprox. 3sec to change function to select between RS232orRS485 communication.

Pressing FOLD pushbutton arms foldback protectionwhich shuts downoutput if supply transits fromCV toCC.

Par.

Table 4-1 contd.: Front panel controls and indicators

4.2.2 Rear Panel6V to 60V models 80V and 120V models

# Control/Indicator

10 AC ON/OFF

11 V/A Pushbutton

12 OVP / UVP

13 ADDR

DescriptionTurnsACpowerOnandOff.

Selects the voltage or current adjust mode. fast or slowadjustment speed can be selected by pressing thepushbutton consecutively. Adjustment is made by rotatingtheAdjust knob.

Makes selection between Over-voltage or Under-voltageadjust mode. Adjustment is made by rotating the Adjustknob.

Main function: Selects the address for remote control. Theadjustment ismadeby rotating theAdjust knob.Auxiliary function: HoldingADDRpressed for approx. 3sec.changes the function toBaud-rate selection.

Par.

13

4

5

2

Fig. 4-2: Rear panel connections

4.4.2

4.4.5

4.4.3

4.4.6

5.2.1

5.2.3

66

4.2.3 Rear Panel Connections description# Connection

1 AC Inlet

2 Remote In

3 Remote Out

4 External control

5 Output Bus Bars

7

(6V to 60V models)

6 Ground thread

Ou t p u t c o n ne c t o r(80V and 120V models)

Description

IEC type appliance inlet.

EIA/TIA-568A type connector, used for connecting powersupply to RS232 or RS485 port of computer for remotecontrol purposes. When using several power supply unitsin a power system, the first unit Remote-in is connected tothe computer and the remaining units are chained,Remote-In toRemote-Out.

EIA/TIA-568 type connector, used for chaining powersupplies to forma serial communication bus.

Connector containing control and signal lines for external(remote) control of the power supply. +/- Sense, On/Off,Output voltage and current programming by externalresistor and Output voltage and current programming byexternal voltage andOutputGood signal.

Bus bars for output connection. Use M6 or 1/4” screws forloadwire connections.

M4 thread for grounding either the positive or negativeoutput.

Male connector , PSC1.5/3-M-PE ,Phoenix.

Par.

4.3 TURN-ON CHECKOUT PROCEDURE4.3.1 General

4.3.2 Prior to operation

4.3.3 Constant Voltage check

The following procedure ensures that the power supply is operational and may be used as a basicincoming inspection check.

Check that the Rear panel external control receptacle is properly inserted into the connector and thewires are connected as shown in Fig: 3-6. Connect the unit to anAC source as described in paragraph3.6. Connect aDVM to the output terminals.

Turn-on the power supply. Turn on the output by pressingOUTpushbutton so theOUTLED illuminates.Momentarily press V/A pushbutton, until the V LED illuminates and the VOLTS display shows FA_V.The AMPS display will show the last setting of the output voltage. Rotate the Adjust knob at the frontpanel and check that the output voltage can be varied throughout the entire range. Check that theAMPS display shows the correct output voltage (within the display specifications). Momentarily pressV/Apushbutton again, so theALED illuminates and the VOLTS display shows FA_A. TheAMPdisplaywill show the last setting of the output current. Rotate the Adjust knob and check that the AMP displayvaries. Set theAMPdisplay to the rated output current.

3.6

3.8

5.3.4

5.3.4

3.7

4.3.4 Constant Current check

4.3.5 OVP check

4.3.6 UVP check

4.3.7 Foldback check

4.3.8 Output On/Off

4.3.9 Address setting

4.3.10 Local/Remote operation

Turn off the power supply. Connect an electronic load with suitable voltage and current rating to theoutput terminals, as explained in paragraph 3.7.3. Turn-on the power supply. Vary the load current andcheck that the unit regulates the output voltage while the load current is smaller than the power supplycurrent rating. Further increase the load current and check that the power supply regulates the outputcurrent.

Adjust the output voltage to zero using the front panel knob. Momentarily press OVP/UVP pushbuttonuntil theOVPLED illuminates and the VOLTS display showsOUP. TheAMPS display will show the lastsetting of the OVP level. Rotate theAdjust knob to 50% of the supply’s voltage rating.Adjust the outputvoltage toward it’smaximumand check that the output voltage cannot be increasedmore than theOVPsetting.

Adjust the output voltage to the rated voltage using the front panel knob. Momentarily press OVP/UVPpushbutton until the UVP LED illuminates and the VOLTS display shows UUP.. TheAMPS display willshow the last setting of the UVP level. Rotate the ADJUST knob to 50% of the supply’s voltage rating.Adjust the output voltage toward it’s minimum and check that the output voltage cannot be decreasedbelow theUVPsetting.

Set the load current to 50% of the supply rating. Momentarily press FOLD pushbutton and check thatthe FOLD LED illuminates. Increase the load current toward the supply current rating. Check that theoutput voltage and current fall to zero when the load current reaches the Constant Current setting. TheFOLDLEDshould flash , theALMLED illuminates and the output is disabled in this condition.Reduce the load current setting below the power supply current rating and momentarily press FOLDpushbutton. Check that the output voltage and current recover and FOLD continuously illuminates.Momentarily press theFOLDpushbutton and check that FOLDLED turns off.

Repeatedly pressOUTpushbutton and check that the power supply output is turnedOn andOff. Whilethe output isOn, theOUTLED illuminates.While the output isOff, the LED isOff.

Momentarily pressADDRpushbutton so theADDRLED illuminates and theAMPSdisplay showsAddr.The VOLTS display shows the last address setting. Rotate the ADJUST knob and check that theVOLTSdisplay varies between0and31.

Repeatedly press REM pushbutton and check that REM LED turns on and off. While the power supplyis at Remote mode, the LED is on and while at Local mode, the LED is off. While the LED is off, turn offthe power supply, remove theDVMand the loadwires.

4.4 LOCAL OPERATION

4.4.1 Introduction

4.4.2 Constant Voltage Operation

This paragraph describes the operating modes not involved in programming the power supply via it’sserial communication port. Operation utilizing the front and rear panel are described in this paragraph.For information regarding serial port usage, please refer to chapter 5.The REM LED on the front panel indicates whether the power supply is in Local or Remote mode. Theextinguished LED indicates Local operation. If the LED illuminates, the REM pushbutton (fig.4-1, item8),should be pressed to change the operatingmode to Local.

1. In constant voltagemode, the power supplymaintains the output voltage at the selected valuewhilethe load current varies as required by the load.

2.While the power supply is operating at constant voltage, theCVLEDon the front panel illuminates.3. For coarse output voltage adjustment, press V/A consecutively, until the V LED illuminates, andthe VOLTS display shows FA_V. The AMPS display will show the output voltage setting value.Rotate the ADJUST knob to set the output voltage. At this mode, approx. 6 turns are required toadjust the entire range. Approx. 3sec after the adjustment, the display returns to show the actualvoltage and current.

3. For coarse output current adjustment, pressV/Aconsecutively, until theALED illuminates, andthe VOLTS display shows FA_A. The AMPS display will show the output current setting value.Rotate the ADJUST knob to set the output current. At this mode, approx. 6 turns are required toadjust the entire range. Approx. 3sec after the adjustment, the display returns to show the actualvoltage and current.

4.4.3 Constant Current Operation

NOTE

NOTE

4. For fine adjustment of output voltage, pressV/Aconsecutively until the VLED illuminates and theVOLTSdisplay showsSL_V.TheAMPSdisplaywill show the output voltage setting value.RotatetheADJUSTknob to set the output voltage.At thismode the adjustment resolution ismaximal.Approx 3sec. after the adjustment, the display returns to show the actual voltage and current.

4. For fine adjustment of output current, pressV/Aconsecutively until the ALED illuminates and theVOLTSdisplay showsSL_A.TheAMPSdisplaywill show the output current setting value.RotatetheADJUSTknob to set the output current.At thismode the adjustment resolution ismaximal.Approx 3sec. after the adjustment, the display returns to show the actual voltage and current.

1. In constant currentmode the power supplymaintains the output current at the selected value,whilethe load voltage varieswith the load requirement.

2.While the power supply is operating at constant current, theCCLEDon the front panel illuminates.

If after completing the adjustment the display shows a different value than the setting, the powersupply may be at current limit. Check the load condition and the power supply current limit setting.

The maximum and minimum setting values of the output voltage are limited by the over voltage andunder voltage protection settings. Refer to par. 4.4.5 and 4.4.6 for details.

4.4.4 Automatic Crossover

4.4.5 Over Voltage Protection (OVP)

If the power supply operates in Constant voltage mode while the load current is increased to greaterthan the current limit setting, the power supply will automatically switch to Constant currentmode. If theload is decreased to less than the current limit setting, the power supply will automatically switch backtoConstant voltagemode.

MODEL (by output voltage) 6V

7.5V10V

13V

20V

24V

36V

40V

60V 80V 120V66V 88V 132VMaximum OVP

1.TheOVPcircuitmonitors the voltage at the power supply sensing points thus guaranteeing theprotection level at the load.Upondetection ofOver Voltage condition, the power supplywill shutdown.To resumeoperation, the power switch should be turned off for approx. 30sec. Prior to turn-on,check carefully that the sensewires are connected correctly and secured.

2.OVPsetting values are limited at theminimumandmaximum levels.Atminimum level, theOVP levelis limited by theOutput Voltage setting, therefore theOVP level cannot be adjusted below theOutput Voltage.Atmaximum level, theOVP level is limited to the values shown inTable 4-1.

Table 4-1:MaximumOVPsetting levels.

4.4.6 Under Voltage Protection (UVP)

3.For over voltage protection adjustment, pressOVP/UVPconsecutively, until theOVPLEDilluminates and theVOLTSdisplay showsOUP.TheAMPSdisplaywill show the over voltageprotection setting value.Rotate theADJUSTknob to set the over voltage protection level.Approx.3sec after the adjustment, the display returns to show the actual voltage and current.

4. In order to see the value of theOVP, pressOVP/UVPpushbutton, so that theOVPLED illuminates.At this time the displaywill show theOVPset value for approx. 3sec.

5. The minimum over voltage level is approx. 105% of the output voltage set value. Attempting toadjust the over voltage protection below this value will result in no response to the adjustmentattempt.

6. In case the OVP is triggered, the front panel control is disabled unitl the AC input is recycled byturning the AC ON/OFF switch to OFF and after approx. 30 sec. to ON.

1.TheUVPprevents adjustment of the output voltage belowa certain limit. The combination ofUVPandOVP functions allows the user to create a protectionwindow for sensitive loads circuitry.

2. For under voltage protection adjustment, pressOVP/UVPconsecutively until theUVPLEDilluminates and theVOLTSdisplay showsUUP.TheAMPSdisplaywill show the under voltageprotection setting value.Rotate theADJUSTknob to set the under voltage protection level.

3. In order to see the set value of theUVP, pressOVP/UVPpushbutton, so that theUVPLEDilluminates.At this time the displaywill show theUVPset value for approx. 3sec.

4. Themaximumunder voltage level is approx. 95%of the output voltage set value.An attempt toadjust the under voltage protection above this valuewill result in no response to the adjustmentattempt.

5.The under voltage protection is a software protection only.

4.4.8 Output ON/OFF Control

4.4.7 Foldback Protection

The ON/OFF circuit has two controls; a front panel pushbutton and a rear panel connection. priority isgiven to the rear panel connection.

1. Foldback protectionwill shut down the power supply output if the load current exceeds the currentlimit setting level. This protection is useful when the load circuitry is sensitive to over currentcondition.

2. To arm theFoldback protection, the FOLDpushbutton should be pressed so theFOLDLEDilluminates.At this condition transition fromConstant Voltage toConstantCurrentmodewill activatetheFoldback protection.

3. Activation of theFoldback protection disables the power supply’s output, turns on theALM (alarm)LEDand flashes theFOLDLED.

4.There are 2modes of releasing an activatedFoldback protection.1. Short press onFOLDpushbutton enables the output and re-arms the protection circuit. If the load

is smaller than the current limit level, the power supplywill restore normal operation. If the load isgreater than the current limit level, the outputwill be disabled again andFoldback indicatorswillbe on.

2. Long press (approx. 3sec) onFOLDpushbuttonwill disable theFoldback protection circuit andenable the output. The power supplywill restore operation toConstant Voltage orConstantCurrent modedepending on the load characteristics and power supply setting.

1. Rear panel ON/OFF Control

2. Front panel ON/OFF Control

Contacts 9, 10 at the rear panel External Control connector (fig. 4-2, item 4) serve as ON/OFFterminals. Either short circuit or TTL ‘0’ level enables the power supply output and open circuit or TTL ‘1’level disables the power supply’s output. An open collector transistor can be used for the ON/OFFcontrol as shown in fig. 4-3, with sink current ability of more than 2.5mA. Please note that pin 10 (COM)is internally connected to the - Sense potential, therefore for floating ON/OFF Control a photocouplershould be used as shown in Fig. 4-4.

The Front Panel ON/OFF is controlled by the OUTpushbutton. To enable the output, OUT pushbuttonshould be pressed so thatOUTLED illuminates. The operation ofOUTpushbutton is enabled only if therear panelON/OFF is configured to ‘ON’.

Fig. 4-3:ON/OFFControl, references to - Sense.(ZUP rear panel view)

Fig. 4-4: FloatingON/OFFControl(ZUP rear panel view)

2 2

- LS - LS- S - S

+LS +LS+S +S

On/Off On/Off2.5mA

ON ON

OFF OFFCOM COM

P P

VRFV VRFVVCVP VCVP

VRFI VRFIVCCP VCCP

RCVP RCVPRCCP RCCP

1 1

Output Good Output Good

1. Automatic start mode

4.4.9 Last Setting Memory

In this mode the power supply restores it’s last operation setting and sets the OUT to ‘ON’ state. Uponstart-up, the output is enabled and the power supply delivers power to the output terminals. To selectthis mode press and hold OUT pushbutton. After approx. 3sec., the display will continuously cyclebetween AS ON (auto-start on) and AS OFF (auto-start off), approx. every 3sec. Releasing the OUTpushbutton whileAS ON is displayed, will set the power supply to automatic start mode. (holding OUTdepressed for more than 1sec. does not change the output on/off status). In cases where the OverVoltage or Over Temperature or Foldback protection has been activated , the unit will automaticallychange to safe startmodeafter theACvoltage recycling.

The ZUP series is equipped with Last Setting Memory which stores all power supply parameters ateach ac turn-off sequence of the power supply. The OUT parameter storage is determined prior to theac turn-off to allow twomodes of re-start of the power supply.

STOREDPARAMETERS1. Output Voltage2. OutputCurrent3. OVPLevels4. UVPLevels5. FOLD6. Re-startmode

7. REMOTE/LOCAL8. ADDRESS9. CommunicationStandard (RS232/RS485)10. Baud-rate11. Service request parameters(Items8-10 are related to computer controlledoperation and explained in chapter 5).

2. Safe start mode

4.4.10 Output Voltage & Current programmingby external resistor

In thismode, the power supply restores it’s last operation setting and sets theOUT to the ‘OFF’state. Toselect this mode, press and hold OUT pushbutton. After approx. 3sec., the display will continuouslycycle between AS ON (auto-start on) and AS OFF (auto-start off), approx. every 3sec. Releasing theOUT pushbutton whileASOFF is displayed will set the power supply to safe start mode.At startup, theoutput is disabled and the output voltage and current are zero. To enable the output and restore the lastoutput voltage and current values,OUTpushbutton should bemomentarily pressed.

1. For resistive programming, internal current sources, for output voltage and/or output current control,supply 1mAcurrent through external programming resistors. The voltage across the programmingresistors is used as a programming voltage for the power supply. Resistance of 0~4kohmprogramsthe output from0 to full scale (full scale is 105%of the rated voltage or current).Avariable resistor can control the output over it’s entire range, or a combination of variable resistorand series/parallel resistors can control the output over a restricted portion of it’s range.Alternatively,a switch can be used to select fixed values of programming resistance to obtain a set of discretevoltages or currents. Caremust be taken to avoid open circuit at the programming resistors, as it willcause over-voltage at the output. In this case, no damage to the power supplywill be causedhowever, it is recommended to setOVP limit to a level which is safe for the load circuitry.

2. Tomaintain the temperature stability specification of the power supply, the resistors used forprogramming should be stable and lownoise resistors, with temperature coefficient of less than25ppmandpower rating of 1/4Wormore.

3.Where external resistor programming is used, front panel control and computer control (via serialcommunication) of the output voltage and current are disabled.

4.OUTPUTVOLTAGEPROGRAMMINGBYEXTERNALRESISTOR

Fig 4-5 shows a typical set-up for programming the output voltage. A variable programming resistor,0~4Kohm produces a proportional output voltage from zero to full scale. In order to set the low limit, aseries resistor can be connected to the programming resistor. For example; a 1kohmseries resistor willset the lower limit to 25% of full scale. In order to set the upper limit, a resistor can be connected inparallel to the programming resistor. The resultant programming resistance of the series/parallelresistorsmust be between0and4Kohm.

NOTEResistive programming is possible for local and remote sensing.

Fig. 4-5:Constant voltage resistive programming.

2

2

- LS

- LS

- S

- S

+LS

+LS

+S

+S

On/Off

On/Off

0~4Kprogramming resistor

0~4Kprogramming resistor

Optionalsets lower

limit

Optionalsets lower

limit

Optionalsets upper limit

Optionalsets upper limit

External control connector(ZUP rear panel view)

External control connector(ZUP rear panel view)

COM

COM

P

P

VRFV

VRFV

VCVP

VCVP

VRFI

VRFI

VCCP

VCCP

RCVP

RCVP

RCCP

RCCP

1

1

5.OUTPUTCURRENTPROGRAMMINGBYEXTERNALRESISTORFig 4-6 shows the set-up for constant current resistive programming. The explanation given forconstant voltage resistive programming also applies for constant current.

Fig. 4-6:Constant current resistive programming.

Output Good

Output Good

14

14

13

13

4.4.11 Output Voltage Programming by external voltage

4.4.12 Output Current Programming by external voltage

CAUTION

CAUTION

Fig. 4-7 shows the set-up for external voltage programming of the output voltage. A voltage sourcevariable from 0 to 4V, programs the output voltage proportionally from zero to full scale. The static loadcurrent on the programming source is less than 2uA. The source resistance should be less than10Kohm to avoid degradation of offset and drift specifications. When external voltage is used forprogramming the front panel and the computer control (via the serial communication) are disabled.Note: Full scale is 105% of the rated output voltage.

Fig. 4-8 shows the set-up for external voltage programming of the output current. A voltage sourcevariable from 0 to 4V, programs the output current proportionally from zero to full scale. The static loadcurrent on the programming source is less than 2uA. The source resistance should be less than10Kohm to avoid degradation of offset and drift specifications.Note: Full scale is 105% of the rated output current.

The Com pin at the external control connector is connected to the -Sense potential. NEVERconnect the Com pin (pin10) to any potential, as it may damage the power supply.

Avoid connection of resistors greater than 4kohm or voltage greater than 4V for external resistoror voltage programming, as it may cause the output voltage and current to exceed the powersupply rating. The display will NOT show the actual voltage and current when such resistor

or voltage is applied for programming.

Fig. 4-7:Output voltage programmingby external voltage source.

(ZUP rear panel view)

Fig. 4-8:Output current programmingby external voltage source.

(ZUP rear panel view)

0~4VDCVoltagesource

0~4VDCVoltagesource

+

+

_

_

2

2

14

14

- LS

- LS

- S

- S

+LS

+LS

+S

+S

On/Off

On/Off

External control connector

External control connector

COM

COM

P

P

VRFV

VRFV

VCVP

VCVP

VRFI

VRFI

VCCP

VCCP

RCVP

RCVP

RCCP

RCCP

1

1

13

13

Output Good

Output Good

4.4.13 Auto Parallel Operation

4.While operating in CV mode, the master unit regulates the output voltage and the slave units operateas controlled current source, following the master output current. It is recommended to design thepower system so that each unit will supply up to 95% of it’s current rating, because of an imbalancewhich may be caused by cabling and connections voltage drop.

The master unit OVP should be adjusted to the desired OVP level. TheOVP of the slave units should be adjusted higher than the Master OVP. When the master unit shutsdown, it programs the slave units to zero output voltage. If a slave unit shuts down (when it’s OVP isset lower than the master output voltage), only that unit will shut down and remaining slave unitswill supply all the load current.

At auto-parallel mode, power supplies can be connected in local or remotesensing. Refer Fig. 4-9, 4-10 & 4-11 for typical connections of paralleled power supplies. The figurebelow shows connection of two units, however the same connection method applies for up to 5 units.

5.OverVoltageProtection:

6. Connection to theLoad:

Fig. 4-9:Auto-parallel with local sensing(ZUP rear panel view)

- V

- V

+V

+V

LOAD

MASTERPOWERSUPPLY

SLAVEPOWERSUPPLY

+

_- LS

- LS

- S

- S

2

2

14

141

1

13

13

+LS

+LS

+S

+S

On/Off

On/Off

COM

COM

P

P

VRFV

VRFV

VCVP

VCVP

VRFI

VRFI

VCCP

VCCP

RCVP

RCVP

Toot

hers

lave

s

RCCP

RCCP

NOTEWith local sensing it is important to minimize the wire length and resistance. Also the wires

resistance should be as close as possible to achieve current balance between power supplies.

1.Up to five units of the same rating can be connected in an auto-parallel combination to provide up tofive times the output current capability. One of the power supplies operates as a master and theremaining units as slaves. The slave units are analog programmed by the master unit.At remoteoperation, only the master unit can be programmed by the computer while the slave units may beconnected to the computer for actual voltage and current readback only.

2. Foldback protection if desired, may only be used with the master unit. When the master unit shutsdown it programs the slave units to zero output voltage.

3. Setting the voltage and current:The output voltage of the slave units should be programmed higher than the output and the master toavoid interference with the master CV control. Output voltage of the master should be programmedto the desired voltage, and the current limit to the desired load current divided by the number of

parallel units. During operation, the master unit operates at CV mode and the slave units at CC mode.

Output Good

Output Good

Fig. 4-10: Local sensing withdistribution terminals.(ZUP rear panel view)

Fig. 4-11:Auto parallel withremote sensing

(ZUP rear panel view)

- V

- V

- V

- V

+V

+V

+V

+V

+S

- S

LOAD

LOAD

MASTERPOWERSUPPLY

MASTERPOWERSUPPLY

SLAVEPOWERSUPPLY

SLAVEPOWERSUPPLY

+

+

_

_

- LS

- LS

- S

- S

+LS

+LS

+S

+S

On/Off

On/Off

COM

COM

P

P

VRFV

VRFV

VCVP

VCVP

VRFI

VRFI

VCCP

VCCP

RCVP

RCVPToot

hers

lave

s

RCCP

RCCP

- S+S

-S+S

- LS

- LS

- S

- S

+LS

+LS

+S

+S

On/Off

On/Off

COM

COM

P

P

VRFV

VRFV

VCVP

VCVP

VRFI

VRFI

VCCP

VCCP

RCVP

RCVP

Toot

hers

lave

s

RCCP

RCCP

Output Good

Output Good

Output Good

Output Good

2

2

2

2

14

14

14

141

1

1

1

13

13

13

13

CAUTION

CAUTION

When two power supplies are connected in series, they should be programmed to the same outputvoltage to prevent damage to the lower voltage supply at short circuit condition.

When power supplies are connected in series, and the load or one of the output terminalsis grounded, no point may be at a greater potential ( + or - ) from ground than that specified

on the front panel marking.

4.4.14 Series Operation1.GENERAL:Twopower supplies of the same rating can be connected in series to increase the

output voltage or to provide bipolar output voltage.

2. Series connection for increased output voltage:2.1 General: At this operation mode, two units are connected so their outputs are summed. Set the

current limits of each power supply to the maximum that the load can handle without damage. It isrecommended to connect diodes in parallel to each unit output to prevent reverse voltage during start-up condition or in case one of the units shuts down. Each diode should be rated to at least the powersupply’s output current. Refer to Fig: 4-12 and 4-13 for this operatingmode.

2.2Remote programming at series operation for increased output voltage:1. Programming by external voltage;The analog programming circuits of the ZUPpower supply

are referenced to the - Sense potential. Therefore, the circuits used to control each unitmustbe separated and floated fromeach other.

2. Programming by external resistor: Programming by external resistor is possible. Refer toFig. 4-5 andFig. 4-6 for details.

3. Programming via the communication port (RS232/RS485): The communication port is isolatedfrom the output voltage, therefore power supplies connected in series, can be chained usingtheRemote-in andRemote-out connectors.

Fig. 4-12: Series connectionwith local sensing. Fig. 4-13: Series connection, remote sensing.

- S - S

- S - S

+LS +LS

+LS +LS

- LS - LS

- LS - LS

+S +S

+S +S

LOAD LOAD

POWERSUPPLY

POWERSUPPLY

POWERSUPPLY

POWERSUPPLY

+ +

+ +

+ +

_ _

_ _

_ _

3. Series connection for bipolar output voltage:3.1 General:At this operationmode, two units are configured as a bipolar voltage/current source. Set

the current limits of each power supply to the maximum that the load can handle without damage. It isrecommended to connect diodes in parallel to each unit output to prevent reverse voltage during start-up condition or in case one of the units shuts down. Each diode should be rated to at least the powersupply’s output current. Refer to Fig. 4-14 for this operatingmode.

Fig. 4-14: Series connection for bipolar output

- S

- S

+LS

+LS

- LS

- LS

+S

+S

LOADCOM

POWERSUPPLY

POWERSUPPLY

+

+

+_

_

_

3.2Remote programming at series operation for bipolar output voltage:1. Programming by external voltage;The analog programming circuits of the ZUPpower supply

are referenced to the - Sense potential. Therefore, the circuits used to control each unitmustbe separated and floated fromeach other.

2. Programming by external resistor: Programming by external resistor is possible. Refer toFig. 4-5 andFig. 4-6 for details.

3. Programming via the communication port (RS232/RS485): The communication port is isolatedfrom the output voltage, therefore the serialy connected power supplies can be chained usingtheRemote-In andRemote-Out connectors.

Fig. 4-16:Hierarchical structure inmultiple supply systems.

4.4.15 Output Good Signal

Typical applications of Output Good Signal

Output Good Signal is an open collector output, referenced to COM potential, indicating the status ofthe power supply output. While the power supply operates normally, the Output Good is low (0~0.8V).When the power supply output is disabled due to activated OVP, OTP or FOLD protection, or by OUTset to off, or by ac ON/OFF set to off, then the output signal stops conducting. The maximum sinkcurrent is 10mAand themaximumvoltage is 40VDC.

1. Inmultiple power supply systems, it is possible to disable all the unitswhena critical unit fails. Referto Fig 4-15 for typical connection diagram.

2.Hierarchical structure inmultiple supply systems:It is possible to define a hierarchy inmultiple supplysystemsby enabling anyN+1unit by theOutputGood signal of theNunit. In this structure, failure oftheNunit will cause all the following units to be disabled.Refer to Fig 4-16 for typical connectionsdiagram.

CAUTIONThe Output Good Signal is referenced to the COM potential, therefore pay attention NOT to

short it to another potential as it may damage the unit.

Fig. 4-15:Disablingmultiple supply systems.

- V

- VFor models with output voltage rating greater than 40V usea Zener diode to limit the Output Good voltage below 40V.The resistor and Zener power rating must be greater than themaximum actual power dissipation.

( )*

( )*

( )*

( )*

- V

COM

COM

PCn

PCn

PC1PC1I = 5mA

COM

+V+V

+V

ON/OFFOUT.GOOD

ON/OFF

ZUP #CriticalZUPUnit # 1

ZUP # n

n

OUT.GOOD

OUT.GOOD

OUT.GOOD

COM- V

COM- V

COM

PC1-A

PC2-A

PC1-B

PC( -1)-Bn

+V

+V

+V

ON/OFF

ON/OFF

ON/OFF

ZUP # 1

ZUP # 2

ZUP # n

This chapter describes the operation of the ZUP series via the serial communication port. details of theinitial set-up, operation via RS232 or RS485, the command set and the communication protocol aredescribed in this chapter.

The ZUP addresses can be set to any address between 01 and 31. Follow the procedure describedbelow to set the address.1.Momentarily press theADDRpushbutton on the front panel so theADDRLED illuminates and theVOLTSdisplay shows ‘Addr’.

2. Rotate the front panel knob.While rotating the knob theAMPSdisplaywill show the selectedaddress.When the rotation is stopped, the address shownwill be the selected address.The displaywill return to show the actual voltage and current approx. 3 sec. from termination of rotating knob.

3.While the unit is in operation, depressing theADDRpushbuttonwill cause the display to show theselected address.

To select betweenRS232orRS485 serial communication the following steps should be taken.1. Press and holdREMpushbutton.(holdingREMdepressed formore than 1sec does not change thelocal/remote status).

2. Press and holdREMpushbutton.After approx. 3sec. the displaywill continuously cycle between‘rs232’and ‘rs485’approx. every 3sec.

3. To select RS232, release theREMpushbuttonwhile ‘rs232 is displayed.To select RS485, releasetheREMpushbuttonwhile ‘rs485 is displayed.

4.Approx. 3sec after releasing theREM, the display returns to show the actual voltage and current.

Six optional rates are possible:300, 600, 1200, 2400, 4800, 9600. To select the desired rate, thefollowing steps should be taken. The power supply should be at Local operation mode during thefollowing procedure:1. Press and hold ADDRpushbutton.After approx. 3 sec. the displaywill continuously cycle between

the six optional rates approx. every 2 seconds.2. To select the desired rate, releaseADDRwhile that rate is displayed.3.After releasingADDR the displaywill return to show the actual voltage and current.

To enable the operation via RS232 or RS485, the power supply should be at Remote mode. At thismode, all the front panel functions are disabled except Local/Remote pushbutton.Transition fromLocal toRemote control:1. Via the front panel:Momentarily pressREMpushbutton so theREMLED illuminates.To return fromRemote to Local control,momentarily pressREMpushbutton so theREMLEDextinguishes.

2. Via the serial communication port (RS232/RS485): By sending a :RMTn; command to the powersupply. Refer to par. 5.5.2.

CHAPTER 5 RS232 & RS485 REMOTE CONTROL5.1 INTRODUCTION

5.2 CONFIGURATION

5.2.1 Address setting

5.2.2 RS232 or RS485 selection

5.2.3 Baud rate setting

5.2.4 Local/Remote selection

5.3 REMOTE PROGRAMMING VIA RS2325.3.1 Introduction

5.3.2 Rear panel connectors pinout

IN

RXD+

RXD+

TXD+

TXD+

RXD_

RXD_

TXD_

TXD_

Not used

Shield (connector enclosure)

Not used

RX (RS232)

NC

NC

SG

TX(RS232)

SGOUT

RS232

10m max. 1000m max.

RS485 RS485

Fig. 5-1: LinkingZUPunitswithRS232 control.

The RS232 interface is accessible through the rear panel IN/OUT jacks. The jacks are 8 contacts eachand conform to EIA/TIA-568A requirements. The IN and OUT jacks are used to connect the units in aRS232orRS458 chain to a controller. The data format isASCII, 8 bits/character no parity bit, one stop bit.The baud rate can be selected to one of the 6 possible rates between 300 and 9600bps (refer topar.5.2.3).Rrefer to par.5.6 for detailed explanation.Up to 31ZUPunits can be connected to theRS232 control as shown in Fig.5-1.

Fig. 5-2:Rear panel connector pinout

(ZUP rear panel view)

8765432187654321

NOTETx and Rx are used for RS232 communication. Txd +/- and Rxd +/- are used for RS485communication. Refer to RS232 and RS485 cables description for connection details.

ZUP (1) ZUP (2) ZUP (31)

The RS232 is used only for connecting the power supply to the controller PC. For linking several powersupplies, refer to par. 5.3.4.

It is possible to link up to 31 ZUP units, using rear panel In/Out connectors and linking cables as shownin Fig. 5-1. The first unit communicates with the PC via RS232 as shown in Figs. 5-3 and 5-4. The otherunits are linked by RS485 interface. Construction of the linking cable is shown in Fig. 5-5.

5.3.3 RS232 cable ( PC to ZUP ) - ZUP/NC403 , ZUP/NC401

5.3.4 Linking power supplies - ZUP/NC405 / ZUP/W

Fig. 5-3: RS232 cable with DB-25female connector -P/N: NC403

Fig. 5-4: RS232 cable with DB-9female connector -P/N: NC401.

Fig. 5-5: ZUPunits linking cable.P/N: ZUP/NC405

ZUP/W

EIA/TIA-568A SHIELDED CONNECTORS

52468

52468

PIN NO.HOUSING HOUSING

PIN NO.NAME NAMESHIELDSGTXDTXDRXDRXD

SHIELDSGTXDTXDRXDRXD

8 PIN CONNECTOR (IN) 8 PIN CONNECTOR (OUT) REMARKS

235

735

PIN NO.HOUSING HOUSING

PIN NO.NAME NAMESHIELDRXTXSG

SHIELDTXRXSG

DB-9 CONNECTOR 8 PIN CONNECTOR REMARKS

TWISTEDPAIR

237

1375

PIN NO. PIN NO.NAME NAMESHIELDTXRXSG

SHIELDRXTXSG

DB-25 CONNECTOR 8 PIN CONNECTOR REMARKS

TWISTEDPAIR

8

8

1

8

1

1

1

8

5

1

13

1

-+

+

+

+-

--

Fig. 5-7: RS485 cablewithDB-9 female connector.

Fig. 5-6: LinkingZUPunits toRS485 control.

For operation environments that require high noise immunity or long distance communication, it isrecommended to use the built-in RS485 interface. The RS485 interface is accessible through therear panel In/Out jacks in a similar way to theRS232. The communication is a four-wire type. Refer topar. 5-6 for detailed explanation. Up to 31ZUPunits can be connected to theRS485 control as shownin Fig. 5-6.

Power supplies are linked in the samewayas described in par. 5.3.4.

TheZUPcommand set is divided into four categories as follows: 1. InitializationControl2. IDControl3.OutputControl4. StatusControl

The commands structure, syntax, and registers definition are described in this paragraph as listedabove.

5.4 REMOTE PROGRAMMING VIA RS4855.4.1 Introduction

5.4.3 Linking power supplies

5.5 ZUP SERIES COMMAND SET DESCRIPTION

5.4.2 RS485 cable ( PC to ZUP ) - NC402

98154

68524

PIN NO.HOUSING HOUSING

PIN NO.NAME NAME

TWISTEDPAIR

TWISTEDPAIR

SHIELDTXDTXDSGRXDRXD

SHIELDRXDRXDSGTXDTXD

DB-9 CONNECTOR 8 PIN CONNECTOR REMARKS

-+

+

+

+-

--

8

1

5

1

RS485

1000m max.

RS485 RS485

ZUP (1) ZUP (2) ZUP (31)

5.5.2 ID control commands# Commands

1 :MDL?;

2 :REV?;

Description

Returns the power supply model identification as anASCII string:Nemic-Lambda ZUP(XXV)-(YYA).XX - The rated output voltageYY - The rated output currentexample: Nemic-Lambda ZUP(6V-33A)

Returns the software version as anASCII string:Ver XX-YYA.BXX- The rated output voltageYY- The rated output currentA.B- Version identifierexample: Ver 6-33 1.0

5.5.1 Initialization control# Commands

2 :DCL;

1 :ADRn;

3 :RMTn;

4 :RMT?;

Description

Clears the communication buffer and the following registers:1. Operational status register2.Alarm (fault) status register3. Programming error register

Sets the power supply address. ADR is followed by the addresswhich can be 01 to 31.

Sets the power supply to local or remote mode. (This command is activewhen the unit is either in Local or Remote modes).Transition from Local toRemote mode is made via the front panel only.:RMT0; Transition from Remote to Local mode.:RMT1; Transition from latched Remote to non-latched Remote.:RMT2; Latched remote: Transition back to Local mode or to non- latchedRemote can be made via the serial port (RS232/485).At this mode, the front panel Local/Rem function is disabled. Escape fromthis mode to non -latched remote mode can be made by turning the ACON/OFF to OFF and after approx. 10sec.to ON again.

Returns the remote/local setting. The returned data is anASCII string.RM1 (The unit is in remote mode)RM2 (The unit is in latched remote mode)

5.5.3 Output control# Commands1 :VOLn;

2 :VOL!;

DescriptionSets the output voltage value in volts. This programmed voltage is theactual output at constant-voltage mode or the voltage limit at constantcurrent mode.The range of the voltage values are as shown in table 5-1.Use all digits for voltage programming

Returns the string (Set Voltage) followed by the present programmedoutput voltage value.The actual voltage range is as shown in table 5-1.example: SV5.010 SV08.500

SV

Note:The ZUP can accept programmed valuehigher by up to 5% than the table values,however it is not recommended to programpower supply over the rated voltage.

Table 5-1: Voltage programming range.

Example - ZUP6-XY :VOL5.010; ZUP10-XY :VOL08.500;

Example - ZUP60-3.5 :CUR3.000; ZUP10-40 :CUR07.50;

Model MIN. MAX.ZUP6-XY 0.000 6.000ZUP10-XY 00.000 10.000ZUP20-XY 00.000 20.000ZUP36-XY

ZUP80-XY

00.00

00.00

36.00

80.00ZUP60-XY

ZUP120-XY

00.00

000.00

60.00

120.00

4 :CURn;

3 :VOL?;

Sets the output current in Ampers. This programmed current is the actualoutput current at constant-current mode or the current limit at constantvoltage mode.The programming range is shown in table 5-2:Use all digits for current programming.

Returns the string (Actual Voltage) followed by the actual output voltage.The actual voltage range is the same as the programming range.example: AV5.010 AV08.500

AV

Note:The ZUP can accept values higher by 5%than the rating. It is recommended to set theoutput current to 105% of the rating if theunit is required to supply the rated current.

Model MIN. MAX.ZUP6-33 00.00 33.00ZUP6-66 00.00 66.00ZUP6-132 000.00 132.00ZUP10-20 00.000 20.000ZUP10-40ZUP10-80ZUP20-10ZUP20-20ZUP20-40ZUP36-6ZUP36-12

00.0000.00

00.00000.00000.000.000

00.000

40.0080.00

10.00020.00040.006.000

12.000ZUP36-24ZUP60-3.5ZUP60-7ZUP60-14

00.0000.0000.000

00.000

24.0003.5007.000

14.000ZUP80-2.5ZUP80-5ZUP120-1.8ZUP120-3.6

0.00000.000

0.00000.000

2.50005.000

1.80003.600

Table 5-2: Current programming range.

5.5.3 Output control continued

# Commands

5 :CUR!;

6 :CUR?;

7 :OUTn;

8 :OUT?;

9 :FLDn;

10 :FLD?;

DescriptionReturns the string (Set Amper) followed by the present programmedoutput current. The programmed value range is shown in table 5-2.example- SA3.000 SA07.50

SA

Returns the string (Actual Amper) followed by the actual output current.The actual current range is the same as the programming range.example- AA3.000 AA07.50

AA

Sets the output to On or Off.:OUT1; - Output On:OUT0; - Output Off

Returns followed by the output On/Off status.OT1 - Output is OnOT0 - Output is Off

OT

Sets the Foldback protection to On or Off.:FLD1; Arm the foldback protection.:FLD0; Release the foldback protection.:FLD2; Cancel the foldback protection.When the foldback protection is activated, :FLD0; will release theprotection and re-arm it while :FLD2; will cancel the protection. If theprotection has not been activated, both commands are the same.

Returns followed by the Foldback protection status.FD1 - Foldback is armedFD0 - Foldback is released

FD

11 :OVPn;

12 :OVP?;

Sets the over-voltage protection level in volts. Over-voltage range settingsare given in table 5-3:

Example - ZUP10-XY :OVP08.4;

Example- OP08.4

Returns the string followed by the present programmed over-voltageprotection value. The over-voltage range is given in table 5-3.

OP

Model MIN. MAX.ZUP6-XY 0.20 7.50ZUP10-XY 00.5 13.0ZUP20-XY 01.0 24.0

Table 5-3: Over-voltage programming range.

ZUP36-XY 01.8 40.0ZUP60-XY 03.0 66.0ZUP80-XY 04.0 88.0ZUP120-XY 006.0 132.0

5.5.3 Output control continued# Commands

13 :UVPn;

DescriptionSets the under-voltage protection limits in volts. Under-voltage rangesettings are given in table 5-4:

Model MIN. MAX.ZUP6-XY 0.00 5.98ZUP10-XY 0.00 9.97ZUP20-XY 00.0 19.9

14 :UVP?;

15 :ASTn;

16 :AST?;

Example - ZUP20-XY :UVP07.3;

example- UP07.3

Returns the string followed by the present programmed under-voltageprotection value.The under-voltage range is given in table 5-4.

UP

Sets the auto-restartmode toOnorOff.:AST1; -Auto-restart isOn:AST0; -Auto-restart isOffReturns the string followedby the auto-restartmode status.AS1 -Auto-restart isONAS0 -Auto-restart isOff

AS

Table 5-4: Under-voltage programming range.

ZUP36-XY 00.0 35.9ZUP60-XY 00.0 59.8ZUP80-XY 00.0 79.8ZUP120-XY 000.0 119.8

1.Operational StatusRegister:The operational status register records signals that are part of the power supply’s normal operation. Inaddition to the normal operation data, the register holds an alarm bit which indicates that one of thealarm (fault) register bits is set. The register is automatically updated and reading it does not change it’scontent. Clearing the register is done by DCL command. See table 5-5 for Operational Status Registercontent.

Note:*1 In case ofAC fail, the alarmstatus register ‘AC fail’ bit will be set butwill not set the alarmbit.

5.5.4 Status control5.5.4.1 Registers structure

Table 5-5: Operational status register content.

Bit Name Bit No Meaningcc/cv 1 ‘0’ - Indicates constant voltage, ‘1’ - constant current.

‘1’ - Indicates auto-restart is on, ‘0’ - auto-restart is off.

‘0’ - Indicates foldback protection SRQ is disabled , ‘1’ - enabled.‘0’ - Indicates over voltage protection SRQ is disabled , ‘1’ - enabled.

‘1’ - Indicates output is on , ‘0’ -output is off.

‘0’ - Indicates over temp. protection SRQ is disabled , ‘1’ - enabled.

‘1’ - Indicates foldback protection is armed.fold 2ast 3out 4srf 5srvsrtalarm

6

87

‘1’ - Indicates that an alarm register bit is set. (note*1)

Bit Name

Bit Name

Bit No

Bit No

Meaning(*3)(*3)(*1)(*2)(*3)

Meaning

ovp

not used

‘1’ - Indicates that the over-voltage protection was tripped

‘1’ - Indicates that a failure occurred at the input voltage supply

‘1’ - Indicates an overflow in the communication buffer

‘1’ - Indicates that the foldback protection was activated

‘1’ - Indicates an attempt to program the power supply to a voltageout of specification limits.‘1’ - Indicates an attempt to program the power supply to a currentout of specification limits.

‘1’ - Indicates a programming error has occurred

‘1’ - Indicates that the over-temperature protection was tripped

‘1’ - Indicates that an unknown string was received

otp

wrong command

a/c fail

buffer overflow

fold

wrong voltage

prog

wrong current

Table 5-6: Alarm status register content.

Table 5-7: Error codes register content.

2.AlarmStatusRegister:The alarm status register records fault conditions occurring during power supply operation. Any set bitin this register causes the ‘alarm’ bit in the operational status register to be set. Reading the registerdoes not change it’s content. The register is cleared by :DCL; command.

3. ErrorCodesRegister:The error codes register records errors that occurred during the programming of the power supply.Anyset bit in this register causes the ‘prog’ bit in the alarm status register to be set. Reading the registerdoes not change it’s content. The register is cleared by :DCL; command.

Notes: (*1) Since at eachAC turn off theAC fail bit is generated and stored, it is recommended tosend a :DCL; command following application ofACvoltage to the power supply, to clear thealarmstatus register.

(*2) FOLDbit is automatically reset upon cancellation of FOLDprotection.(*3)OVP,OTPand ‘prog’bits reset atAC turn-off or by :DCL; command.

1

1

2

2

3

3

4

4

5

5

5.5.4.2 Status control commands# Commands

1 :STA?;

2 :ALM?;

Description

Reads the operational status register content.Returns the string followed by ASCII characters representing theregister’s content.Refer to table 5-5 for the register content description.example- OS00010000

OS

Reads the alarmstatus register content.Returns the string AL followed by ASCII characters representing theregister’s content.Refer to table 5-6 for the register content description.example- AL00000

In case theOTPorOVP is triggered, the front panel control is disabled until theAC input isrecycled by turning theACON/OFFswitch toOFFandafter approx. 10 sec. toON.

5.5.4.2 Status control commands continued# Commands

3 :STP?;

4 :STT?;

DescriptionReads the programming error register content.Returns the string followed by ASCII characters representing theregister’s content.Refer to table 5-7 for the register content description.example- PS00000

PS

Reads the complete status of the power supply.This query returnsASCII characters representing the following data:AV<actual voltage >SV<voltage setting>AA<actual current>SA<current setting>OS<operational status register>AL<alarmstatus register>PS<programming error register>

example:AV5.010SV5.010AA00.00SA24.31OS00010000AL00000PS00000

5.6 COMMUNICATION PROTOCOL

5.6.1 General Information

5.6.2 Accessing a ZUP Unit

5.6.3 End of Message

The average command processing time of the ZUP Series is 15mSec. It is not recommended to sendstrings of commands to theZUPpower supplywithout considering the processing time.For query commands ( ? , ! ) , wait until the ZUP reply message has been completed , before sending anew command.

The default condition of the ZUP series is Listen mode. In order to access a ZUP unit, for sending acommandor query, the address of that unit should be sent by the host controller (:ADRn;). TheZUP thatrecognizes it’s address becomes active and can communicate with the host controller. The other unitsremain in Listen mode, waiting to receive their address. To access another unit, the controller shouldsend the address of that unit. The previously active unit changes it’s state to Listen mode and theaddressed unit becomesactive.

Themessages generated by theZUPare terminated by an end ofmessage:<CR> carriage return character< LF> line feed character

When sending amessage to theZUP, there is no need for the end ofmessage characters.

48

5.6.4. COMMUNICATION TEST SET UP1. Equipment :

2. PC Set Up :

3. ZUP Set Up

4. Communicationtest

ATTENTION:

PC with Windows HyperTerminal Private Edition software installed , ZUP PowerSupply , RS232 cable (NC401 when the PC uses DB-9 or NC403 when the PC usesDB-25 connector).

OpenHyperTerminal PrivateEdition...... New Connection

Enter a name

Connect to...................... Direct toCom1orCom2

Set thePort Properties as follows:

Bits per second...................... 9600

Data bits...................................... 8

Parity.................................... None

Stop bits....................................... 1

Flow control..................... Xon/Xoff

OpenProperties in the program:

File:............... PropertiesSetting: ASCII SetUp

select Echo characters locally

Press for capital letters

Connect ZUPPowerSupply to thePCusingRS232 cable (NC401orNC403)

Set via the front panel: Baud Rate 9600, RS232/RS485 to RS232, address:01

Set Rem/Local to Rem (Rem LED illuminates)

Model identification test:PC:writeZUP response:

Command test:PC: write: (for n refer 5.5.3)

The ZUP output should turn on and display will show the output voltage and actualoutput current.

Do not useBackspace, Enter, Ctrl or Alt keys.If an errorwasmadeduringwriting , press “;” andwrite again the command.

2.1

2.2

2.3

2.4

2.5

2.6

2.7 CapsLock

3.1

3.2

3.3

4.1:ADR01;:MDL?;Nemic-Lambda<XXV-YYA>

4.2:OUT1; :VOLn; :CURn;

Service request is a message generated by the ZUP power supply to interrupt the controller. SRQcan be generated by a power supply fault condition.Each of the following conditions can generate SRQ message:1. Over Voltage Protection (OVP).2. Over Temperature Protection (OTP).3. Foldback Protection.The operator decides which of the conditions are defined as faults. Enabling or disabling a conditionfrom generating SRQ message does not affect the condition within the power supply.

The service request message consists of three characters terminated by EOS<CR><LF>.The first character identifies the SRQ cause: 1-Foldback , 2-OVP , 3-OTP.The 2’nd and 3’rd characters identify the ZUP power supply address.

Example: String generated by a ZUP unit :120<CR><LF> , means foldback protection was activatedin power supply address 20.

5.7 SERVICE REQUEST

5.7.1 Service Request (SRQ)

5.7.2 Service Request message

5.7.3. Service request enable/disable commands

49

# Command Description

1 :SRVn; Enable or disable OVP service request.:SRV1; Enable OVP service request.:SRV0; Disable OVP service request.

2 :SRV?; Returns QV followed by the OVP service request status.:QV1; OVP service request enabled.:QV0; OVP service request disabled.

3 :SRTn; Enable or disable OTP service request.:SRT1; Enable OTP service request.:SRT0; Disable OTP service request.

4 :SRT?; Returns QT followed by the OTP service request status.:QT1; OTP service request enabled.:QT0; OTP service request disabled.

5 :SRFn; Enable or disable Foldback protection service request.:SRF1; Enable Foldback protection service request.:SRF0; Disable Foldback protection service request.

6 :SRF?; Returns QF followed by the Foldback protection service request status:QF1; Foldback protection service request enabled.:QF0; Foldback protection service request disabled.

This chapter containsmaintenance and calibration information for theZUPpower supply series.

Units requiring repair during the warranty period should be returned to a Nemic-Lambda authorizedservice facility. Refer to the address listing on the back cover of this user’s manual. Unauthorizedrepairs performedby other than authorized service facilitiesmay void thewarranty.

No routine maintenance of the ZUP power supply is required except for periodic cleaning. To clean,disconnect the unit from theAC supply and allow 30sec for discharging internal voltage. The front paneland the metal surfaces should be cleaned using a dry cloth. Use low pressure compressed air to blowdust from the unit.

No internal adjustment or calibration are required. Units that are returned for service will be calibratedat the service facility. There isNOREASON to open theZUPcover.

As repairs are made only by the manufacturer of authorized service facilities, no part replacementinformation will be discussed here. In case of failure, unusual or erratic operation of the unit, contact aNemic-Lambda sales or service facility nearest you. Please refer to the Nemic-Lambda sales officeslisted on the back cover of this user’smanual.

ZUP200Series(ZUP6-33,ZUP10-20,ZUP20-10,ZUP36-6,ZUP60-3.5,ZUP80-2.5,ZUP120-1.8) : T8A250VZUP400Series(ZUP6-66,ZUP10-40,ZUP20-20,ZUP36-12,ZUP60-7,ZUP80-5,ZUP120-3.6) : T10A250VZUP800Series (ZUP6-132, ZUP10-80, ZUP20-40, ZUP36-24, ZUP60-14): F20A250V

CHAPTER 6 MAINTENANCE6.1 INTRODUCTION

6.2 UNITS UNDER WARRANTY

6.3 PERIODIC MAINTENANCE

6.4 ADJUSTMENT AND CALIBRATION

6.5 PART REPLACEMENT AND REPAIRS.

6.6 FUSE RATINGS

28

23

4139

1346

ac cablesac failaccessoriesaddressadjustmentalarm statusamps displayauto-parallelautomatic start

baud ratebipolar voltagebuffer overflow

last setting memorylinking power supplieslocal/remotelocal sensing

rack mountingremote sensingregisters structureRS232RS485RXDRX (RS232)

safe startsafety symbolsseries operationshieldstatus controlSRQ

operational statusotpoutput goodover voltage

error codeexternal resistorexternal voltage

grounding

humidityHyper Terminal

jacks (front panel) under voltage

volts display

multiple loadsmaintenance

parallel operationparity

ID controlinitialization

TXDTX (RS232)

wire sizewrong command

foldbackfuse

display

calibrationcommunicationconstant currentconstant voltagecoolingcv indicatorcc indicator

646624,26,385046233330

383646

304038, 2314

12154538, 3938, 414139

3033539, 40, 414549

45463728

463132

2

848

21

15, 1650

3348

4242

23, 292, 50

23

50472727122323

ZERO-UP USER’S MANUAL INDEXA

B

L

R

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G

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J U

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C


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