KEPCO ATE 25-40DMG User manual

OPERATOR MANUAL
IMPORTANT NOTES:
1) This manual is valid for the following Model and associated serial numbers:
MODEL SERIAL NO. REV. NO.
2) A Change Page may be included at the end of the manual. All applicable changes and
revision number changes are documented with reference to the equipment serial num-
bers. Before using this Instruction Manual, check your equipment serial number to identify
your model. If in doubt, contact your nearest Kepco Representative, or the Kepco Docu-
mentation Office in New York, [phone], requesting the correct revision for your
particular model and serial number.
3) The contents of this manual are protected by copyright. Reproduction of any part can be
made only with the specific written permission of Kepco, Inc.
Data subject to change without notice.
KEPCO®
THE POWER SUPPLIER™
KEPCO, INC. !131-38 SANFORD AVENUE !FLUSHING, NY. 11355 U.S.A. !TEL [phone] !FAX [phone]
email: [e-mail] !World Wide Web: http://www.kepcopower.com
KEPCO INC.
An ISO 9001 Company.
ORDER NO. REV. NO.
©2013, KEPCO, INC,
P/N 243-1324b
ATE-DMG SERIES
POWER SUPPLY
MODELS
ATE 6-100DMG, ATE 15-50DMG,
ATE 25-40DMG, ATE 36-30DMG,
ATE 55-20DMG, ATE 75-15DMG,
ATE 100-10DMG, ATE 150-7DMG

228-1348 DC-COMP/INST 020613 A
Declaration of Conformity
Application of Council directives: 73/23/EEC (LVD)
93/68/EEC (CE mark)
Standard to which Conformity is declared:
EN61010-1:2001 (Safety requirements for electrical equipment for measurement,
control and laboratory use - Part 1)
Manufacturer's Name and Address: KEPCO INC.
131-38 SANFORD AVENUE
FLUSHING, N.Y. 11355 USA
Importer's Name and Address:
Type of Equipment: Component Power Supply
Model No.: [PRODUCT MODEL NUMBER]
Year of Manufacture:
I, the undersigned, declare that the product specified above, when used in conjunction with the condi-
tions of conformance set forth in the product instruction manual, complies with the requirements of the
Low Voltage Directive 73/23/EEC, which forms the basis for application of the CE Mark to this product.
Place: KEPCO Inc.
131-38 Sanford Ave.
Flushing, N.Y.11355 USA
Date:
Saul Kupferberg
(Full Name)
VP OF SALES
(position)
REPRESENTATIVECOPY

B228-1351 COND/CONFORM 020613
Conditions of Conformance
When this product is used in applications governed by the requirements of the EEC, the following restric-
tions and conditions apply:
1. For European applications, requiring compliance to the Low Voltage Directive, 73/23/EEC, this power
supply is considered a component product, designed for “built in“ applications. Because it is incom-
plete in construction, the end product enclosure must provide for compliance to any remaining electri-
cal safety requirements and act as a fire enclosure. (EN61010-1:2001, Cl. 6, Cl. 7, Cl.8, and Cl. 9)
2. This power supply is designed for stationary installation, with mains power applied via a detachable
power supply cord or via direct wiring to the source power terminal block.
3. This power supply is considered a Class 1 (earthed) product. It is intended for use as part of equip-
ment meant for test, measurement and laboratory use, and is designed to operate from single phase,
three wire power systems. This equipment must be installed within a suitably wired equipment rack,
utilizing a three wire (grounded) mains connection. See wiring section of this manual for complete
electrical wiring instructions. (EN61010-1:2001, Cl.6.10.1)
4. This power supply has secondary output circuits that are considered hazardous, and which exceed
240 VA at a potential of 2V or more.
5. The output wiring terminals of this power supply has not been evaluated for field wiring and, therefore,
must be properly configured by the end product manufacturer prior to use.
6. This power supply employs a supplementary circuit protector in the form of a circuit breaker mounted
on the front panel. This circuit breaker protects the power supply itself from damage in the event of a
fault condition. For complete circuit protection of the end product, as well as the building wiring, it is
required that a primary circuit protection device be fitted to the branch circuit wiring. (EN61010-1:2001,
Cl. 9.5)
7. Hazardous voltages are present within this power supply during normal operation. All operator adjust-
ments to the product are made via externally accessible switches, controls and signal lines as speci-
fied within the product operating instructions. There are no user or operator serviceable parts within
the product enclosure. Refer all servicing to qualified and trained Kepco service technicians.

228-1352 SAFETY - (COVER REMOVAL) 020613 C/(D BLANK)
SAFETY INSTRUCTIONS
1. Installation, Operation and Service Precautions
This product is designed for use in accordance with EN 61010-1 and UL 3101 for Installation Category 2,
Pollution Degree 2. Hazardous voltages are present within this product during normal operation. The prod-
uct should never be operated with the cover removed unless equivalent protection of the operator from
accidental contact with hazardous internal voltages is provided:
2. Grounding
This product is a Class 1 device which utilizes protective earthing to ensure operator safety.
3. Electric Shock Hazards
This product outputs hazardous voltage and energy levels as a function of normal operation. Operators
must be trained in its use and exercise caution as well as common sense during use to prevent accidental
shock.
There are no operator serviceable parts or adjustments within the product enclosure.
Refer all servicing to trained service technician.
Source power must be removed from the product prior to performing any servicing.
This product is factory-wired for the nominal a-c mains voltage indicated on the rat-
ing nameplate located adjacent to the source power connection on the product's rear
panel. To reconfigure the product input for other nominal mains voltages as listed
herein, the product must be modified by a trained service technician.
The PROTECTIVE EARTHING CONDUCTOR TERMINAL must be properly con-
nected prior to application of source power to the product (see instructions on instal-
lation herein) in order to ensure safety from electric shock.
PROTECTIVE EARTHING CONDUCTOR TERMINAL - This symbol indicates the
point on the product to which the protective earthing conductor must be attached.
EARTH (GROUND) TERMINAL - This symbol is used to indicate a point which is
connected to the PROTECTIVE EARTHING TERMINAL. The component installer/
assembler must ensure that this point is connected to the PROTECTIVE EARTH-
ING TERMINAL.
CHASSIS TERMINAL -This symbol indicates frame (chassis) connection, which is
supplied as a point of convenience for performance purposes (see instructions on
grounding herein). This is not to be confused with the protective earthing point, and
may not be used in place of it.
This symbol appears adjacent to any external terminals at which hazardous voltage
levels as high as 500V d-c may exist in the course of normal or single fault condi-
tions.
This symbol appears adjacent to any external terminals at which hazardous voltage
levels in excess of 500V d-c may exist in the course of normal or single fault condi-
tions.
!
!
!
!
!

ATE-DMG020613 i
TABLE OF CONTENTS
SECTION PAGE
SECTION 1 - INTRODUCTION
1.1 Scope of Manual ..................................................................................................................................... 1-1
1.2 General Description................................................................................................................................. 1-1
1.3 Specifications .......................................................................................................................................... 1-1
1.4 Local Control ........................................................................................................................................... 1-1
1.5 Remote Control ....................................................................................................................................... 1-1
1.6 Features .................................................................................................................................................. 1-5
1.6.1 Overvoltage/Overcurrent Protection .................................................................................................. 1-5
1.6.1.1 Programmable Overvoltage/Overcurrent Delay........................................................................... 1-5
1.6.1.2 Crowbar Circuit ............................................................................................................................ 1-6
1.6.2 Non-volatile Storage of Programmed Sequences or Active Settings ................................................ 1-6
1.6.3 User-defined Voltage/Current Limits.................................................................................................. 1-6
1.7 Equipment Supplied ................................................................................................................................ 1-6
1.8 Accessories ............................................................................................................................................. 1-6
1.9 Safety ...................................................................................................................................................... 1-6
SECTION 2 - INSTALLATION
2.1 Unpacking and Inspection ....................................................................................................................... 2-1
2.2 Terminations and Controls ...................................................................................................................... 2-1
2.3 Source Power Requirements .................................................................................................................. 2-5
2.4 Cooling .................................................................................................................................................... 2-6
2.5 Preliminary Operational Check................................................................................................................ 2-6
2.6 Installation ............................................................................................................................................... 2-7
2.6.1 Grounding.......................................................................................................................................... 2-7
2.6.1.1 A-C (Safety) Ground .................................................................................................................... 2-7
2.6.1.2 Isolation from Ground. ................................................................................................................. 2-7
2.7 Fast Mode Conversion of the Ate Power Supply..................................................................................... 2-7
2.7.1 Precautions........................................................................................................................................ 2-8
2.7.2 Lag Network Adjustment.................................................................................................................... 2-8
2.7.3 Crowbar Operation, Fast Mode ......................................................................................................... 2-8
2.7.4 Manual Change-over, Slow/fast Mode............................................................................................... 2-8
2.8 Operating Configuration .......................................................................................................................... 2-9
SECTION 3 - OPERATION
3.1 General.................................................................................................................................................... 3-1
3.1.1 Safety Grounding............................................................................................................................... 3-1
3.1.2 D-C (Output) Grounding .................................................................................................................... 3-1
3.1.3 Power Supply/Load Interface............................................................................................................. 3-2
3.1.3.1 Load Wire Selection..................................................................................................................... 3-2
3.2 Load Connection ..................................................................................................................................... 3-3
3.2.1 General.............................................................................................................................................. 3-3
3.2.2 Load Connection, Method I (Local Error Sensing)............................................................................. 3-4
3.2.3 Load Connection, Method II (Remote Error Sensing)........................................................................ 3-5
3.2.4 Load Connection, Method III.............................................................................................................. 3-6
3.3 Overvoltage Crowbar, Setup and Check................................................................................................. 3-7
3.3.1 Setup and Check Procedure.............................................................................................................. 3-7
3.4 Local Mode Operation (Keypad Operation)............................................................................................. 3-7
3.4.1 Front Panel Keypad and LCD............................................................................................................ 3-8
3.4.1.1 Command Entry Status................................................................................................................ 3-8
3.4.1.2 Data Entry Status......................................................................................................................... 3-8
3.4.1.3 Display (LCD)............................................................................................................................... 3-8
3.4.1.4 Keypad Functions ........................................................................................................................ 3-8
3.4.2 Turning the Power Supply On............................................................................................................ 3-10
3.4.3 Setting Local Mode............................................................................................................................ 3-11
3.4.4 Adjusting LCD Contrast ..................................................................................................................... 3-11
3.4.5 Enabling/Disabling Audible Beeps..................................................................................................... 3-11
3.4.6 Enabling/Disabling DC Output Power................................................................................................ 3-11

ii ATE-DMG020613
TABLE OF CONTENTS
SECTION PAGE
3.4.7 Reset................................................................................................................................................. 3-11
3.4.8 Setting Output Voltage or Current..................................................................................................... 3-12
3.4.9 Setting Overvoltage or Overcurrent Protection ................................................................................. 3-12
3.4.10 Changing Protection Delay ............................................................................................................... 3-13
3.4.11 Changing Maximum Voltage or Current Value ................................................................................. 3-13
3.4.12 Storing Power Supply Output Settings.............................................................................................. 3-13
3.4.13 Recalling Stored Output Settings...................................................................................................... 3-14
3.4.14 Enabling Remote Analog Control...................................................................................................... 3-14
3.4.15 Local Mode Programming of the Power Supply................................................................................ 3-14
3.4.15.1 Creating or Modifying a Program (Program Edit Mode).............................................................. 3-14
3.4.15.1.1 Modifying Programmed Time Interval..................................................................................... 3-14
3.4.15.1.2 Time Interval Accuracy........................................................................................................... 3-15
3.4.15.1.3 Display Program Option ......................................................................................................... 3-15
3.4.15.2 Running a Program ..................................................................................................................... 3-15
3.4.15.3 Stepping Through a Program...................................................................................................... 3-15
3.4.15.4 Cycling a Program....................................................................................................................... 3-15
3.4.15.5 Running a Program Once ........................................................................................................... 3-17
3.4.15.6 Stopping a Program .................................................................................................................... 3-17
3.4.15.7 Stopping a Running Program...................................................................................................... 3-17
3.4.15.8 Sample Program ......................................................................................................................... 3-17
3.4.16 Calibration......................................................................................................................................... 3-17
3.5 Analog Remote Programming ................................................................................................................ 3-18
3.6 Digital Remote Mode Programming........................................................................................................ 3-19
3.6.1 IEEE 488 (GPIB) Bus Protocol ......................................................................................................... 3-19
3.6.2 DCL Control ...................................................................................................................................... 3-21
3.6.3 Changing the GPIB Address............................................................................................................. 3-21
3.6.4 Enabling Remote Analog Control...................................................................................................... 3-21
3.6.5 Programming Techniques to Optimize performance ........................................................................ 3-21
3.7 SCPI Programming................................................................................................................................. 3-22
3.7.1 SCPI Messages ................................................................................................................................ 3-22
3.7.2 Common Commands/Queries .......................................................................................................... 3-22
3.7.3 SCPI Subsystem Command/Query Structure................................................................................... 3-22
3.7.3.1 ABORt Subsystem ...................................................................................................................... 3-23
3.7.3.2 DIAG Subsystem......................................................................................................................... 3-23
3.7.3.3 DISPlay Subsystem .................................................................................................................... 3-23
3.7.3.4 INITiate Subsystem..................................................................................................................... 3-23
3.7.3.5 LIST Subsystem.......................................................................................................................... 3-23
3.7.3.6 MEASure Subsystem .................................................................................................................. 3-23
3.7.3.7 OUTPut Subsystem .................................................................................................................... 3-23
3.7.3.8 Protection Subsystem ................................................................................................................. 3-23
3.7.3.9 STATus Subsystem .................................................................................................................... 3-23
3.7.3.10 TRIGger subsystem .................................................................................................................... 3-24
3.7.3.11 [SOURce:]VOLTage and [SOURce:]CURRent Subsystems ...................................................... 3-24
3.7.3.12 CALibrate Subsystem ................................................................................................................. 3-24
3.7.4 Program Message Structure ............................................................................................................. 3-24
3.7.4.1 Keyword ...................................................................................................................................... 3-26
3.7.4.2 Keyword Separator ..................................................................................................................... 3-27
3.7.4.3 Query Indicator............................................................................................................................ 3-27
3.7.4.4 Data............................................................................................................................................. 3-27
3.7.4.5 Data Separator............................................................................................................................ 3-27
3.7.4.6 Message Unit Separator ............................................................................................................. 3-27
3.7.4.7 Root Specifier.............................................................................................................................. 3-27
3.7.4.8 Message Terminator ................................................................................................................... 3-28
3.7.5 Understanding The Command Structure .......................................................................................... 3-28
3.7.6 Program Message Syntax Summary ................................................................................................ 3-29
3.7.7 SCPI Program Examples .................................................................................................................. 3-29

ATE-DMG020613 iii
TABLE OF CONTENTS
SECTION PAGE
SECTION 4 - CALIBRATION
4.1 General.................................................................................................................................................... 4-1
4.2 Equipment Required................................................................................................................................ 4-1
4.3 Calibration Procedures............................................................................................................................ 4-1
4.3.1 Voltage Calibration ............................................................................................................................ 4-2
4.3.2 Current Calibration............................................................................................................................. 4-2
4.4 Changing the Calibration Password ........................................................................................................ 4-3
4.5 Restoring Previous Calibration Values.................................................................................................... 4-4
4.6 Restoring Factory Calibration Values...................................................................................................... 4-4
APPENDIX A - IEEE 488.2 COMMAND/QUERY DEFINITIONS
A.2 *CLS — Clear Status Command ............................................................................................................ A-1
A.3 *ESE — Standard Event Status Enable Command ............................................................................... A-1
A.4 *ESE? — Standard Event Status Enable Query .................................................................................... A-2
A.5 *ESR? — Event Status Register Query ................................................................................................. A-2
A.6 *IDN? — Identification Query ................................................................................................................. A-2
A.7 *OPC — Operation Complete Command............................................................................................... A-2
A.8 *OPC? — Operation Complete Query.................................................................................................... A-2
A.9 *OPT? — Options Query........................................................................................................................ A-3
A.10 *RCL — Recall Command...................................................................................................................... A-3
A.11 *RST — Reset Command ...................................................................................................................... A-3
A.12 * SAV — Save Command ...................................................................................................................... A-3
A.13 *SRE — Service Request Enable Command......................................................................................... A-4
A.14 *SRE? — Service Request Enable Query.............................................................................................. A-5
A.15 *STB? — Status Byte Register Query.................................................................................................... A-5
A.16 *TRG — Trigger Command.................................................................................................................... A-5
A.17 *TST? — Self Test Query....................................................................................................................... A-5
APPENDIX B - SCPI COMMAND/QUERY DEFINITIONS
B.1 Introduction............................................................................................................................................. B-1
B.2 ABORtCommand................................................................................................................................... B-2
B.3 CALibrate:CURRent:LEVel Command ................................................................................................. B-3
B.4 CALibrate:CURRent[:DATA] Command ............................................................................................ B-3
B.5 CALibrate:PASSword Command........................................................................................................ B-4
B.6 CALibrate:SAVE Command................................................................................................................. B-4
B.7 CALibrate:STATus Command ............................................................................................................. B-4
B.8 CALibrate:STATus? Query.................................................................................................................. B-4
B.9 CALibrate:VOLTage:LEVel Command ............................................................................................... B-4
B.10 CALibrate:VOLTage[:DATA] Command ............................................................................................. B-5
B.11 CALibrate:ZERO Command................................................................................................................ B-5
B.12 DIAG:EXT Command ........................................................................................................................... B-5
B.13 DIAG:EXT? Query................................................................................................................................ B-5
B.14 DISPlay:CONTrast Command ............................................................................................................ B-5
B.15 DISPlay:CONTrast? Query ................................................................................................................. B-6
B.16 DISPlay:MODE Command .................................................................................................................. B-6
B.17 DISPlay:MODE? Query....................................................................................................................... B-6
B.18 DISPlay:TEXT Command .................................................................................................................... B-6
B.19 DISPlay:TEXT? Query......................................................................................................................... B-6
B.20 INITiate[:IMMediate] Command .......................................................................................................... B-7
B.21 INITiate:CONTinuous Command........................................................................................................ B-7
B.22 INITiate:CONTinuous Query............................................................................................................... B-7

iv ATE-DMG020613
TABLE OF CONTENTS
SECTION PAGE
B.23 INSTrument:STATe Command ............................................................................................................ B-7
B.24 LIST:CURRent Command.................................................................................................................... B-7
B.25 [SOUR:]LIST:CURRent? Query.......................................................................................................... B-7
B.26 [SOUR:]LIST:CURRent:PROTect Command.................................................................................... B-8
B.27 [SOUR:]LIST:CURRent:PROTect? Query......................................................................................... B-8
B.28 [SOUR:]LIST:DWELl Command.......................................................................................................... B-8
B.29 [SOUR:]LIST:DWELl? Query .............................................................................................................. B-9
B.30 [SOUR:]LIST:INDex Command ........................................................................................................... B-9
B.31 [SOUR:]LIST:INDex? Query................................................................................................................ B-9
B.32 [SOUR:]LIST:SEQuence:NEXT Command....................................................................................... B-9
B.33 [SOUR:]LIST:SEQuence:NEXT? Query ........................................................................................... B-9
B.34 [SOUR:]LIST:SEQuence:STARt Command ...................................................................................... B-9
B.35 [SOUR:]LIST:SEQuence:STARt? Query........................................................................................... B-9
B.36 [SOUR:]LIST:VOLTage Command...................................................................................................... B-10
B.37 [SOUR:]LIST:VOLTage? Query .......................................................................................................... B-10
B.38 [SOUR:]LIST:VOLTage:PROTect Command..................................................................................... B-10
B.39 [SOUR:]LIST:VOLTage:PROTect Query ........................................................................................... B-10
B.40 MEASure[:SCALar]:CURRent[:DC]? Query..................................................................................... B-10
B.41 MEASure[:VOLTage][:SCALar][:DC]? Query ................................................................................... B-10
B.42 OUTPut[:STATe] Command ................................................................................................................. B-11
B.43 OUTPut[:STATe] Query........................................................................................................................ B-11
B.44 OUTPut:PROTection:DELay Command ............................................................................................ B-11
B.45 OUTPut:PROTection:DELay Query................................................................................................... B-11
B.46 PROGram:SELect:STATe Command ................................................................................................. B-11
B.47 PROGram:SELect:STATe? Query...................................................................................................... B-11
B.48 READ[:SCALar]:CURRent[:DC]? Query........................................................................................... B-12
B.49 READ[:VOLTage][:SCALar][:DC]? Query ......................................................................................... B-12
B.50 [SOURce:]CURRent[:LEVel][:IMMediate][:AMPlitude] Command ................................................ B-12
B.51 [SOURce:]CURRent[:LEVel][:IMMediate][:AMPlitude] Query ....................................................... B-12
B.52 [SOURce:]CURRent:LIMit:HIGH Command.......................................................................... B-12
B.53 [SOURce:]CURRent:LIMit:HIGH? Query .............................................................................. B-12
B.54 [SOURce:]CURRent:[:LEVel]MODE Command ............................................................................... B-13
B.55 [SOURce:]CURRent:[:LEVel]MODE? Query.................................................................................... B-13
B.56 [SOURce:]CURRent:PROTection[:LEVel] Command...................................................................... B-13
B.57 [SOURce:]CURRent:PROTection[:LEVel]? Query .......................................................................... B-14
B.58 [SOURce:]CURRent:PROTection:CLEar Command ....................................................................... B-14
B.59 [SOURce:]CURRent:PROTection:TRIPped? Query ....................................................................... B-14
B.60 [SOURce:]CURRent:[:LEVel]TRIGgered[:AMPlitude] Command.................................................. B-14
B.61 [SOURce:]CURRent:[:LEVel]TRIGgered[:AMPlitude]? Query ...................................................... B-14
B.62 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude] Command ................................................. B-14
B.63 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude]? Query...................................................... B-15
B.64 [SOURce:]VOLTage:[:LEVel]TRIGgered[:AMPlitude] Command .................................................. B-15
B.65 [SOURce:]VOLTage:[:LEVel]TRIGgered[:AMPlitude]? Query ....................................................... B-15
B.66 [SOURce:]VOLTage:LIMit:HIGH Command...................................................................................... B-15
B.67 [SOURce:]VOLTage:LIMit:HIGH? Query .......................................................................................... B-15
B.68 [SOURce:]VOLTage:[:LEVel]MODE Command................................................................................ B-15
B.69 [SOURce:]VOLTage:[:LEVel]MODE? Query .................................................................................... B-16
B.70 [SOURce:]VOLTage:PROTection[:LEVel] Command ...................................................................... B-16
B.71 [SOURce:]VOLTage:PROTection[:LEVel]? Query ........................................................................... B-16
B.72 [SOURce:]VOLTage:PROTection:CLEar Command........................................................................ B-17
B.73 [SOURce:]VOLTage:PROTection:TRIPped? Query........................................................................ B-17
B.74 [SOURce:]FUNCtion:MODE? Query ................................................................................................. B-17
B.75 STATus:OPERation:CONDition Query .............................................................................................. B-17
B.76 STATus:OPEReration:ENABle Command......................................................................................... B-17
B.77 STATus:OPEReration:ENABle? Query ............................................................................................. B-18
B.78 STATus:OPERation[:EVENt] Query................................................................................................... B-18
B.79 STATus:PRESet Command ................................................................................................................. B-18

ATE-DMG020613 v
TABLE OF CONTENTS
SECTION PAGE
B.80 STATus:QUEStionable[:EVENt]? Query ........................................................................................... B-19
B.81 STATus:QUEStionable:CONDition? Query ...................................................................................... B-19
B.82 STATus:QUEStionable:ENABle Command....................................................................................... B-19
B.83 STATus:QUEStionable:ENABle? Query ........................................................................................... B-19
B.84 SYSTem:ERRor[:NEXT]? Query........................................................................................................ B-19
B.85 SYSTem:ERRor:CODE? Query ......................................................................................................... B-20
B.86 SYSTem:ERRor:CODE:ALL? Query................................................................................................. B-20
B.87 SYSTem:KLOCk Command ................................................................................................................ B-20
B.88 SYSTem:KLOCk? Query..................................................................................................................... B-20
B.89 SYSTem:LANGuage? Query .............................................................................................................. B-20
B.90 SYSTem:LANGuage Command ......................................................................................................... B-20
B.91 SYSTem:PASSword:CENable Command......................................................................................... B-22
B.92 SYSTem:PASSword:CDISable Command........................................................................................ B-22
B.93 SYSTem:PASSword:STATe? Query .................................................................................................. B-22
B.94 SYSTem:SECurity:IMMediate Command.......................................................................................... B-22
B.95 SYSTem:SET Command ..................................................................................................................... B-23
B.96 SYSTem:VERSion Query.................................................................................................................... B-23

LIST OF FIGURES
FIGURE TITLE PAGE
vi ATE-DMG020613
1-1 ATE-DMG Series Programmable Power Supply........................................................................................... ix
1-2 Mechanical Outline Drawing....................................................................................................................... 1-7
2-1 ATE-DMG Full Rack Series Front Panel.................................................................................................... 2-2
2-2 ATE-DMG Full Rack Series Rear Panel..................................................................................................... 2-3
2-3 Location of Internal Controls ...................................................................................................................... 2-4
2-4 A-C Input Source Voltage Selection, ATE-DMG Full Rack Series ............................................................. 2-5
2-5 LCD Power On Defaults............................................................................................................................. 2-6
2-6 Required Steps for ATE “Fast Mode” Conversion...................................................................................... 2-9
3-1 Typical Output Impedance vs. Frequency Plot for Stabilized d-c Sources................................................. 3-2
3-2 Standard Jumper Link Connections for Local (Front Panel) Control of
Output Voltage, Output Current and VP Crowbar Level (Slow Mode)..................................................... 3-4
3-3 Load Connection Method I, Local Error Sensing........................................................................................ 3-5
3-4 Load Connection, Method II Using Remote Error Sensing. ....................................................................... 3-6
3-5 Load Connection, Method III ...................................................................................................................... 3-6
3-6 LCD Power On Defaults............................................................................................................................. 3-11
3-7 A11 Assembly Connector and Pin Locations ............................................................................................. 3-18
3-8 Tree Diagram of SCPI Commands Used with ATE-DMG Power Supply ................................................... 3-25
3-9 Message Structure ..................................................................................................................................... 3-26
3-10 Typical Example of ATE-DMG Power Supply Program Using SCPI Commands ...................................... 3-30
A-1 GPIB Commands ....................................................................................................................................... A-4
B-1 Programming the Output ............................................................................................................................ B-2
B-2 Using Calibration Commands and Queries ................................................................................................ B-3
B-3 Using Display Commands .......................................................................................................................... B-6
B-4 Using LIST Commands and Queries.......................................................................................................... B-8
B-5 Programming Current................................................................................................................................. B-13
B-6 Programming Voltage................................................................................................................................. B-16
B-7 Using Status Commands and Queries ....................................................................................................... B-18
B-8 Using System Commands and Queries ..................................................................................................... B-23

ATE-DMG02613 vii
LIST OF TABLES
TABLE TITLE PAGE
1-1 ATE-DMG D-C Output Ratings and output impedance ...............................................................................1-2
1-2 ATE-DMG Series Specifications .................................................................................................................1-2
1-3 ATE Dynamic Specifications, Resistive Load .............................................................................................1-4
1-4 Overvoltage/Overcurrent Settings ...............................................................................................................1-4
1-5 ATE Static Specifications ............................................................................................................................1-5
1-6 Accessories .................................................................................................................................................1-6
1-7 Safety Symbols ...........................................................................................................................................1-7
2-1 Front Panel Controls, Indicators and Terminations .....................................................................................2-1
2-2 Rear Panel Terminations ............................................................................................................................2-3
2-3 Internal Controls and Their Functions .........................................................................................................2-4
2-4 Input/Output Pin Assignments for Remote Control .....................................................................................2-5
3-1 Key Functions .............................................................................................................................................3-9
3-2 Memory Location Worksheet ......................................................................................................................3-16
3-3 Sample Program (Model ATE 25-40DMG) .................................................................................................3-17
3-4 Connector A11J5 Pin Functions .................................................................................................................3-18
3-5 IEEE 488 (GPIB) Bus Interface Functions ..................................................................................................3-20
3-6 IEEE 488 (GPIB) Bus Command Mode Messages .....................................................................................3-20
3-7 IEEE 488 (GPIB) Bus Data Mode Messages ..............................................................................................3-21
3-8 Rules Governing Shortform Keywords ........................................................................................................3-26
4-1 Suggested Sense Resistors ........................................................................................................................4-1
4-2 Factory Default Calibration Passwords .......................................................................................................4-3
A-1 IEEE 488.2 Command/query Index ........................................................................................................... A-1
A-2 Standard Event Status Enable Register and Standard Event Status Register Bits ................................... A-1
A-3 Service Request Enable and Status Byte Register Bits ............................................................................. A-5
B-1 SCPI Subsystem Command/query Index .................................................................................................. B-1
B-2 Operation Condition Register, Operation Enable Register,
and Operation Event Register Bits .......................................................................................................... B-17
B-3 Questionable Event Register, Questionable Condition Register
and Questionable Condition Enable Register Bits .................................................................................. B-19
B-4 Error Messages .......................................................................................................................................... B-21
B-5 Master Passwords ..................................................................................................................................... B-22

ATE-DMG020613 ix
FIGURE 1-1. ATE-DMG SERIES PROGRAMMABLE POWER SUPPLY

(ix Blank)/x ATE-DMG020613

ATE-DMG OPER 020613 1-1
SECTION 1- INTRODUCTION
1.1 SCOPE OF MANUAL
This manual contains instructions for the installation, operation and maintenance of the ATE
series of voltage and current stabilized d-c power supplies, manufactured by Kepco, Inc., Flush-
ing, New York, U.S.A.
1.2 GENERAL DESCRIPTION
The Kepco ATE-DMG with programmable overvoltage protector is a precision stabilized power
supply which can deliver either stabilized output voltage or current. The prevailing operating
mode is indicated by LED mode indicators on the front panel. Operating mode crossover is
automatic and may be monitored remotely by commands provided via the GPIB port. A digital
front panel display shows the output voltage and output current. This power supply has a linear
and fully dissipative NPN pass transistor section driven by high-gain, integrated circuit amplifi-
ers. The output of the power supply is fully programmable via either the GPIB port or the front
panel keypad. Terminals are also provided for remote error sensing, as well as for the connec-
tion of the output capacitor directly at the load.
The ATE-DMG power supply features user-selectable “slow” or “fast” operating modes. Slow
mode operation is recommended for applications demanding a constant voltage source. Fast
mode operation is best if the output voltage must change rapidly, either in response to an exter-
nal programming signal or, if the ATE-DMG is used as a current stabilizer.
The ATE-DMG power supply is delivered for “slow mode” operation. See Section 2, par.
2.7 for converting the ATE-DMG power supply to “fast mode” operation.
A continuously adjustable overvoltage protection circuit is a built-in feature. The trigger point of
the overvoltage protector may be set (or checked) under actual operating conditions by the front
panel accessible setup controls (refer to Section 2 of this manual).
Power transistors and drivers on all ATE-DMG designs are mounted onto highly efficient, pat-
ented heat sink assemblies which are cooled by low-noise fans. The ATE-DMG main chassis
assemblies, as well as the wraparound covers, are constructed from cold-rolled steel The front
panels are made from aluminum (refer to the “Mechanical Outline Drawing,” Figure 1-2).
1.3 SPECIFICATIONS
Table 1-1 lists the output parameters applicable to individual models. Table 1-2 lists general
specifications applicable to all full-rack models except where otherwise noted. Table 1-3 lists
dynamic specifications and Table 1-5 lists static specifications. Mechanical specifications are
presented in the mechanical outline drawing, Figure 1-2.
1.4 LOCAL CONTROL
Front panel keypad entries are utilized for setting and adjusting output voltage and current
under local control. The keypad's keys are organized to either directly execute commands, or to
introduce a program that can either be run once or cycled. Calibration of the unit is facilitated by
a password -protected, menu-driven procedure from the front panel.
1.5 REMOTE CONTROL
The ATE-DMG Power Supply can be remotely controlled directly via the IEEE 488.2 (GPIB) bus
using SCPI commands. All features available in local mode can also be accessed remotely. In

1-2 ATE-DMG OPER 020613
addition, output voltage and current can also be controlled by external analog reference volt-
ages (see PAR. 3.5).
TABLE 1-1. ATE-DMG D-C OUTPUT RATINGS AND OUTPUT IMPEDANCE
MODEL
d-c OUTPUT RANGE OUTPUT IMPEDANCE VOLTAGE MODE OUPUT IMPEDANCE CURRENT MODE
VOLTS AMPS SERIES R SERIES L (1)
SHUNTR (2) SHUNT C (3)
SLOW FAST SLOW FAST
SIZE “E” FULL-RACK (1000 Watt)
ATE 6-100DMG 0-6 0-100 1.2µΩ 0.5µH5µH 12kΩ22000µF15µF
ATE 15-50DMG 0-15 0-50 6µΩ 0.5µH5µH 30kΩ12000µF6µF
ATE 25-40DMG 0-25 0-40 12.5µΩ 1µH10µH 50kΩ11000µF4µF
ATE 36-30DMG 0-36 0-30 24µΩ 1µH10µH 72kΩ9500µF3µF
ATE 55-20DMG 0-55 0-20 55µΩ 2µH20µH 110kΩ5200µF2.25µF
ATE 75-15DMG 0-75 0-15 0.1mΩ2µH20µH 150kΩ3400µF1.5µF
ATE 100-10DMG 0-100 0-10 0.2mΩ4µH40µH 200kΩ1200µF0.75µF
ATE 150-7DMG 0-150 0-7 0.42mΩ4µH40µH 300kΩ1050µF0.3µF
(1) For determining dynamic impedance in voltage mode.
(2) Based on 0.5mA load effect in FAST mode.
(3) For determining dynamic impedance in current mode.
TABLE 1-2. ATE-DMG SERIES SPECIFICATIONS
SPECIFICATION RATING/DESCRIPTION CONDITION
INPUT CHARACTERISTICS
A-C Voltage nominal: 104, 115, 208, 230Va-c User selectable, See PAR. 2.3
Tolerance: ± 8.7%
Frequency nominal: 50, 60 Hz
Tolerance: ± 3Hz
Current 20A a-c maximum Max load, 125V a-c
OUTPUT CHARACTERISTICS
d-c Output Series Pass Transistor
Type of Stabilizer Automatic crossover Voltage/Current
Voltage 0 to 100% of rating
Current 0 to +55oC 0-100% of rating Usable range limited to approximately 1% to 100%.
+55 to +65oC 0-90% of rating
Static Specifications See Table 1-5
Dynamic Specifications See Table 1-3
Error sense 0.5V per load wire (0.25V for 6V
model)
Voltage allowance
Isolation Voltage 500V d-c or peak Between each output terminal and chassis ground
Leakage current Output to Ground 5 microamperes max. rms at 115V a-c
50 microamperes max. p-p at 115V a-c
Software Overvoltage
Protection (OVP)
See Table 1-4 and PAR. 3.4.3. Digital setting, local or remote.
Action: crowbar the output.

ATE-DMG OPER 020613 1-3
OUTPUT CHARACTERISTICS (CONTINUED)
Hardware Overvolt-
age Protection
(OVP)
Type Crowbar
Control range 1.6% or 3V (whichever is
greater) to 110%Eo max.
Local (manual)
Trigger time: normal 50 microseconds Slow mode
Trigger time: delayed 500 microseconds Fast mode
Threshold: Minimum 0.5 volts, or 2% Eo
max. whichever is greater.
Temperature Coefficient: 0.02%max of Eo max per °C.
SoftwareOvercurrent Protection
(OCP)
See Table 1-4 and PAR. 3.4.3. Digital setting, local or remote.
Action: crowbar the output.
CONTROL
Voltage Local Digital with 12 bits resolution Front panel keypad (24 keys)
Remote Digital with 12 bits resolution Using GPIB (SCPI commands)
Current Local Digital with 12 bits resolution Digital: using front panel (24) keypad
Remote Digital with 12 bits resolution Using GPIB (SCPI commands)
Programming
accuracy
Voltage <0.03% EOmax.
Current <0.03% IOmax.
Readback/Display
accuracy
Voltage <0.05% EOmax
Current <0.03% IOmax (see condition) <0.05% IOmax for 6V and 15V models
GENERAL (ENVIRONMENTAL) CHARACTERISTICS
Operating Temperature 0 to +50°C Derate output power 10% at temperatures above +55°C.
Storage Tempera-
ture
-20 to 70°C
Humidity 0 to 95% RH Non condensing, operating & storage
Shock 20g, 11msec ±50% half sine Non operating, 3-axes, 3 shocks each axis
Vibration 5-10Hz 10mm, double amplitude Non operating, 3-axes, 1 hour each axis
Cooling Forced air High efficiency, single bearing fans, permanently lubri-
cated with special low-noise non-metallic blades. Exhaust
to rear.
PHYSICAL CHARACTERISTICS
Weight 96 lbs. 43.6Kg) Packed for Shipment
Dimensions inches 6-31/32 x 19 x 20-1/64 See Figure 1-2
mm 177 x 482.6 x 506.8
a-c source connec-
tions
Terminal block
d-c output connec-
tions
Rear panel Binding post IO<3.0A
Rear panel compression studs IO≥3.0A
User port 50-terminal connector
Indicators Three LED’s Voltage/Current/OVP
Remote control
programming
One standard
GPIB connector
Rear,
SCPI & IEEE 488.2 Commands
Digital display
front panel
Voltage, current, mode, status,
menu, program, etc.
2 x 16 character alphanumeric LCD with LED backlight
Mounting (in Std. 19 in, racks) Mounting ears supplied
Finish: Fed. Std. 595 Dark and light gray, Color 26440
TABLE 1-2. ATE-DMG SERIES SPECIFICATIONS (Continued)
SPECIFICATION RATING/DESCRIPTION CONDITION

1-4 ATE-DMG OPER 020613
TABLE 1-3. ATE DYNAMIC SPECIFICATIONS, RESISTIVE LOAD
OUTPUT
VOLTAGE RATING
PROGRAMMING BANDWIDTH
(FAST MODE)
(KHz)
PROGRAMMING TIME CONSTANT
(FAST MODE)
(µsec)
Typical minimum Typical maximum
6V 23.0 16.0 7.0 10.0
15V 20.0 10.6 8.0 15.0
25V 11.5 8.0 14.0 10.0
36V 8.0 6.4 20.0 20.0
55V 4.8 4.0 33.0 25.0
75V 4.3 3.5 37.0 40.0
100V 2.7 2.5 60.0 45.0
150V 1.8 1.7 88.0 95.0
325V 1.5 0.937 110.0 170.0
NOTES:
1. VOLTAGE RECOVERY FOR A STEP-LOAD CURRENT IN FAST MODE: The time required for the stabilized output
voltage to recover to within 0.1% (10mV for ATE 75-15DMG) of the output voltage setting, for a 10 to 100% step in rated
load current is typically less than 50usec., 100usec. maximum.
2. CURRENT RECOVERY FOR STEP-LOAD VOLTAGE IN SLOW MODE: The stabilized output current recovers from a
step in load (compliance) voltage with an exponential response, the time constant of which is determined by the load
resistance and the tabulated output capacitance (See Table 1-1).
3. PROGRAMMING SPEED: The speed with which the power supply output responds to external programming signals is
determined by:
a) The PROGRAMMING TIME CONSTANT (τ), given in the “slow” mode by either the load resistance (RL) and
the value of the output capacitor (CO, see Table 1-1): τ= RLCO, or by the FEEDBACK TIME CONSTANT,
given by the product of the feedback capacitor and the feedback resistor: τ= RfCf. whichever is greater. In
the “fast” mode, the PROGRAMMING TIME CONSTANT and bandwidth (-3dB) for the Voltage Control Chan-
nel is shown above.
For the Current Control Channel, the PROGRAMMING TIME CONSTANT in Fast Mode is 25usec. typical,
50usec. maximum. (80usec. for the ATE 325-0.8M).
b) The MAXIMUM RATE OF CHANGE that the power supply output can respond to in Slow Mode is given by the
setting of the power supply's current control setting (ILIM), divided by the ATE output capacitor (COsee Table
1-1):
MAXIMUM RATE OF CHANGE = ILIM/CO.
TABLE 1-4. OVERVOLTAGE/OVERCURRENT SETTINGS
MODEL NUMBER
MAXIMUM
OVERVOLTAGE
SETTING
MAXIMUM
OVERCURRENT
SETTING
MODEL NUMBER
MAXIMUM
OVERVOLTAGE
SETTING
MAXIMUM
OVERCURRENT
SETTING
ATE 6-100DMG 6.5V 110A ATE 55-20DMG 60V 22A
ATE 15-50DMG 16.5V 55A ATE 75-15DMG 82V 16A
ATE 25-40DMG 27V 44A ATE 100-10DMG 110V 11A
ATE 36-30DMG 39V 33A ATE 150-7DMG 165V 7.7A