
Programmable DC Power Supplies
405 Essex Road, Neptune, NJ 07753

GENESYS™ Manual Supplement
FOR UNITS EQUIPPED WITH “IEMD” OPTION,
FOR UNITS EQUIPPED WITH “LAN” OPTION,

WARRANTY…………………………………………………………………………………………….
SAFETY INSTRUCTIONS……………………………………………………………………………..
GERMAN SAFETY INSTRUCTIONS…………………………………………………………………
CHAPTER 1 GENERAL INFORMATION
…………………………………………………………...
UAL CONTENT……………………………………………………………………….
1.2 INTRODUCTION……………………………………………………………………………………
1.2.1 General description…………………………………………………………………………..
1.2.2 Models covered ……………………………………………………………………………...
res and options ………………………………………………………………………..
1.2.4 Multiple output power system ………………………………………………………………
1.2.5 Control via the serial communication port…………………………………………………
1.2.6 Analog voltage programming and monitor
1.2.7 Parallel operation…………………………………………………………………………….
1.2.8 Output connections………………………………………………………………………….
1.2.9 Cooling and mechanical construction……………………………………………………..
…………………………………………………………………………………….
1.3.1 General………………………………………………………………………………………..
1.3.2 Serial link cable………………………………………………………………………………
1.3.3 Misc. hardware……………………………………………………………………………….
…………………………………………………………………………………….
……………………………………………………………………...
2.1 OUTPUT RATING………………………………………………………………………………….
2.2 INPUT CHARACTERISTICS……………………………………………………………………...
2.3 CONSTANT VOLTAGE MODE…………
2.4 CONSTANT CURRENT MODE…………………………………………………………………..
ING AND MONITORING……………………………………………….
2.6 PROGRAMMING AND READBACK……………………………………………………………..
2.7 PROTECTIVE FUNCTIONS……………………………………
2.8 FRONT PANEL…………………………………………………………………………………….
2.9 ENVIRONMENTAL CONDITIONS……………………………………………………………….
2.10 MECHANICAL…………………………………………………………………………………….
2.11 SAFETY/EMC……………………………………………………………………………………..
2.12 SUPPLEMENTAL CHARACTERISTICS……………………………………………………….
2.13 OUTLINE DRAWINGS…………………………………………………………………………...
………………………………………………………………………..
3.1 GENERAL…………………………………………………………………………………………...
RATION FOR USE………………………………………………………………………...
3.3 INITIAL INSPECTION……………………………………………………………………………...
3.4 RACK MOUNTING…………………………………………………………………………………
3.4.1 To install the power supply in a rack……………………………………………………..
3.4.2 Rack mount slides………………………………………………………………………….
3.5 LOCATION MOUNTING AND COOLING……………………………………………………….
3.6 AC SOURCE REQUIREMENTS………………………………………………………………….
3.7 AC INPUT POWER CONNECTION……………………………………………………………...
3.7.1 AC input connector………………….………………………………………………………
3.7.2 AC input cord………………………………………………………………………………..
3.7.3 AC input wire connection………………….………………………………………………..
ON CHECKOUT PROCEDURE……………………………………………
3.8.1 General……………………………………………………………………………………….
3.8.2 Prior to operation…………………………………………………………………………….
3.8.3 Constant voltage check……………………………………………………………………..
3.8.4 Constant current check…
…………………………………………………………………..
3.8.5 OVP check…………………………………………………………………………………...
3.8.6 UVL check……………………………………………………………………………………
3.8.7 Foldback check……………………………………………………………………………...

ting……………….……………………………………………………………..
ting…………………………………………………………………………….
3.9 CONNECTING THE LOAD………………………………………………………………………..
ing…………………………………………………………………………………..
3.9.2 Current Carrying Capa
ity………………………………………………………………….
3.9.3 Wire termination…………………………………………………………………………….
3.9.4 Noise and Impedance E
fects……………………………………………………………...
3.9.5 Inductive loads………………
……………………………………………………………….
3.9.6 Making the load conne
tions……………………………………………………………….
3.9.7 Connecting single loads, local sensing (d
3.9.8 Connecting single loads, remote sen
3.9.9 Connecting multiple loads, radial distribution method…………...……………………...
3.9.10 Multiple loads connection with distribution term
puts………………………………………………………
3.10 LOCAL AND REMOTE SENSING………………………………………………………………
ing……………………………………………………………………………...
ing……………………………………………………………………………….
3.10.4 J2 sense connector technical inform
3.11 REPACKAGING FOR SHIPMENT………………………………………………………………
CHAPTER 4 FRONT AND REAR PANEL CONTROLS AND CONNECTORS
ION……………………………………………………………………………………
CONTROLS AND INDICATORS…………………………………………….
CONNECTIONS AND CONTROLS…………………………………………..
4.4 REAR PANEL SW1 SETUP SWITCH……………………………………………………………
tions……………………………………………………………………
4.4.2 Resetting the switch…………………………………………………………………………
4.5 REAR PANEL J1 PROGRAMMING AND MONITORING CONNECTOR……………………
tions…………………………………………………………………….
CHAPTER 5 LOCAL OPERATION
………………………………………………………………….
5.1 INTRODUCTION…………………………………………………………………………………..
5.2 STANDARD OPERATION…………………………………………………………………………
5.2.1 Constant Voltage Mode…………………………………………………………………….
Pg.355.2.2 Constant Current Oper
tion………………………………………………………………..
over………………………………………………………………………..
5.3 OVER VOLTAGE PROTECTION (OVP)………………………………………………………...
5.3.1 Setting the OVP level…………………
5.3.2 Activated OVP protection indic
tions……………………………………………………..
5.3.3 Resetting the OVP ci
cuit…………….. …………………………………………………...
5.4 UNDER VOLTAGE LIMIT……………………………………………………………………….. .
5.4.1 Setting the UVL level………………………………………………………………………..
5.5 FOLDBACK PROTECTION……………………………………………………………………….
5.5.1 Setting the Foldback prote
tion…………………………………………………………….
5.5.2 Resetting activated Foldback prote
5.6 OUTPUT ON/OFF CONTROL…………………………………………………………………….
OFF (SO) CONTROL VIA REAR PANEL J1 CONNECTOR………………
5.8 ENABLE/DISABLE CONTROL VIA………………………………………………………………
5.9 CV/CC SIGNAL……………………………………
5.10 PS OK SIGNAL……………………………………………………………………………………
RESTART MODES………………………………………………..
5.11.1 Automatic start mode………………………………………………………………………
5.11.2 Safe start mode……………
………………………………………………………………..
5.12 OVER TEMPERATURE PROTECTION (OTP)………………………………………………..
5.13 LAST SETTING MEMORY………………………………………………………………………
5.14 SERIES OPERATION…………………………………………………………………………….
5.14.1 Series connection for
5.14.2 Series connection for positive and negative output vol
5.15 PARALLEL OPERATION……………………………………………………………………….

5.15.1 Basic parallel operati
on……………………………………………………………………..
5.15.2 Advanced parallel operation………………………………………………………………..
OFF CONNECTION…………………………………………………….
5.17 FRONT PANEL LOCKING……………………………………………………………………….
cked front panel……………………………………………………………………….
5.17.2 Locked front panel………………………………………………………………………….
CHAPTER 6 REMOTE ANALOG PROGRAMMING………………………………………………
6.1 INTRODUCTION……………………………………………………………………………………
MOTE ANALOG CONTROL…………………………………………………………
6.3 LOCAL/REMOTE ANALOG INDICATION……………………………………………………….
6.4 REMOTE VOLTAGE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT………..
6.5 RESISTIVE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT…………………..
6.6 REMOTE MONITORING OF OUTPUT VOLTAGE AND CURRENT………………………...
CHAPTER 7 RS232 & RS485 REMOTE CONTROL
7.1 INTRODUCTION……………………………………………………………………………………
7.2 CONFIGURATION………………………………………………………………………………….
ting………………………………………………………………………………...
ting……………………………………………………………………………….
7.2.3 RS232 or RS485 sele
tion………………………………………………………………….
7.2.5 Setting the unit into Remote or Local mode……………………………………………….
7.2.6 RS232/458 port at Local mode……………………………………………………………..
7.2.7 Front panel in Remote mode……………………………………………………………….
7.3 REAR PANEL RS232/485 CONNECTOR……………………………………………………….
7.4 MD MODE OPTION (Factory Installed)………………………………………………………….
7.4.1 MD Mode Description……………………………………………………………………….
7.4.3 MD Mode SRQ………………………………………………………………………………
7.4.4 Communication Collisions………………………………………………………………….
7.4.5 MD Mode SRQ Retransmission……………………………………………………………
7.5 CONNECTING POWER SUPPLI
ES TO RS232 OR RS485 BUS…………………………….
ply………………………………………………………………………….
7.5.2 Multi power supply connection to RS232 or RS485 BUS………………………………..
7.6 COMMUNICATION INTERFACE PROTOCOL…………………………………………………
mat…………………………………………………………………………………...
ing……………………………………………………………………………………
7.6.3 End of message……………………………………………………………………………..
peat………………………………………………………………………
sum…………………………………………………………………………………….
edge………………………………………………………………………………….
sage………………………………………………………………………………..
space…………………………………………………………………………………
7.7 ERROR MESSAGES………………………………………………………………………………
7.8 COMMAND SET DESCRIPTION…………………………………………………………………
7.8.1 General guides……………………………………………………………………………….
ries……………………………………………………………………
7.8.3 Initialization control co
mands……………………………………………………………..
mands………………………………………………………………………..
mands…………………………………………………………………..
7.9 GLOBAL OUTPUT COMMANDS……………
7.9.1 General……………………………………………………………………………………….
7.10 SINGLE BYTE COMMANDS……………………………………………………………………
7.10.1 General……………………………………………………………………………………..
7.10.2 Global commands without respo
7.10.3 Global commands with response………………………………………………………..
7.10.4 Addressed commands with response…………………………………………………..
7.10.5 Addressed commands without response……………………………………………….

mands………………………………………………………………...
7.11 STATUS, ERROR AND SRQ REGISTERS……………………………………………………
7.11.1 General Description……………………………………………………………………….
ters……………………………………………………………………….
7.11.3 Service Request Enabled and Event Regi
7.12 SERIAL COMMUNICATION TEST SET
CHAPTER 8 ISOLATED ANALOG PROGAMMING
8.1 INTRODUCTION……………………………………………………………………………………
8.2 SPECIFICATIONS………………………………………………………………………………….
tion…………………………………………………………………………...
tion……………………………………………………………………………..
8.3 ISOLATED PROGRAMMING & MONITORING CONNECTOR………………………………
8.4 SETUP AND OPERATING INSTRUCTIONS……………………………………………………
8.4.1 Setting up the power supply for 0
5/0-10V Isolated Programming and Monito
g up the power supply for 4
20mA Isolated Programming and Monito
9.1 INTRODUCTION……………………………………………………………………………………
9.2 UNITS UNDER WARRANTY……………………………………………………………………...
9.3 PERIODIC MAINTENANCE……………………………………………………………………….
9.4 ADJUSTMENT AND CALIBRATION……………………………………………………………..
9.5 PARTS REPLACEMENT AND REPAIRS………………………………………………………..
9.6 TROUBLESHOOTING……………………………………………………………………………..
9.7 FUSE RATING……………………………………………………………………………………...

product is warranted against defects in materials and workmanship for
a period of five years from date of shipment. During the warranty period,
will, at it’s option, either repair or replace
products which prove to be defective.
The warranty shall not apply to defects resulting from improper or inadequate usage or maintenance by
the buyer, buyer supplied products or
interfacing. The warranty shall not apply to defects resulting from
unauthorized modifications, or from operation exceeding the environmental specifications of the
product, or if the QA seal has been removed or altered by anyone other than
does not warrant the buyer’s circuitry or
products resulting from the buyer’s circuitry. Furthermore,
does not warrant any damage occu
rring as a result of the buyer’s circuitry
supplied products. THIS LIMITED WARRANTY IS IN LIEU OF, AND
DISCLAIMS AND EXCLUDES, ALL OTHER WARRANTIES, STATUTORY, EXPRESS
OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY
WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE, OR OF CONFORMITY TO MODELS OR SAMPLES.
This product must be returned to an authorized
service facility for repairs or
other warranty service. For p
for warranty service, the
buyer shall prepay shipping charges to
. If the unit is covered under the
shall pay the shipping charges to retu
product to the buyer. Refer to Section 3.11 for repackaging for shipment.
The information contained in this document is subject to change without notice.
shall not be liable for errors contained in this document
or for incidental or consequential damages
in connection with the furnishing, performance or use of this material. No part of this document may be
photocopied, reproduced or translated into another language without the prior written consent of
power supply is a trademark of
are trademarks of Microsoft Corporation.
THE FCC WANTS YOU TO KNOW
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
Operation of this equipment i
n a residential area is likely to cause harmful interference, in which case
the user will be required to correct the interference at his own expense.
Modifications not expressly approved by manufacturer could void the user authority to ope
equipment under FCC Rules.

The following safety precautions must be observed during all phases of operation, service and r
this equipment. Failure to comply with the safety p
recautions or warnings in this document violates
safety standards of design, manufacture and intended use of this equipment and may i
Americas Inc. shall not be liable for user’s failure to comply with these
power supply series has been evaluated to INSTALLATION CATEGORY II. Install
category (over voltage category) II: local level, appliances, portable equipment etc. With smaller tra
an Installation Category (over voltage category) III.
This product is a Safety Class 1 instrument. To minimize shock hazard, the instrument chassis must be
connected to an electrical ground
. The instrument must be connected to the
supply mains through a three conductor power cable, with the ground wire firmly connected to an ele
trical ground (safety ground) at the power outlet.
For instruments designed to be hard
wired to the supply mains, the protective earth terminal mu
connected to the safety electrical ground before another connection is made. Any interruption of the
protective ground conductor, or disconnection of the protective earth terminal will cause a potential
shock hazard that might cause personal injury.
Fuses must be changed by authorized
Americas Inc. service personnel only. For conti
tion against risk of fire, replace only with the same type and rating of fuse. Refer to Chapter
e AC supply, which exceeds the input voltage and frequency rating of this instrument. The
input voltage and frequency rating of the Genesys
power supply series is: 190
three phase 200V models and 380
415, 50/60 Hz for three phase 400V m
odels. For safety reasons,
the mains supply voltage fluctu
tions should not exceed +/
Operating personnel must not remove the instrument cover. No internal adjustment or component r
mericas Inc. qualified personnel. Never replace components
with power cable connected. To avoid injuries, always disconnect power, discharge circuits and remove
external voltage source before touching components.
PARTS SUBSTITUTIONS & MODIFICATIONS
ubstitutions and modifications are allowed by authorized
nel only. For repairs or modifications, the instrument must be returned to an authorized
Americas Inc. service faci
OUTPUT TERMINALS GROUNDING
There is a potential shock hazard at the RS232/RS485 and the IEEE ports when using power su
with rated or combined voltage greater than 400V and the Positive Output of the Power Supply is
grounded. Do Not connect the
Positive Output to ground when using the RS232/RS485 or IEEE.

power supply series safety approval applies to the following operating cond
*Ambient temperature: 0°C to 50°C
*Maximum relative humidity: 90% (no condensation)
Do not use this product in environments with strong Electromagnetic field, corrosive
gas and conductive materials.
CAUTION Risk of Electrical Shock
Instruction manual symbol. The instr
ed with this symbol when it is
necessary for the user to refer to the i
Indicates hazardous voltage.
Indicates ground terminal.
Protective Ground Conductor Terminal
The WARNING sign denotes a hazard. An attention to a procedure is called.
lowing procedure correctly could re
A WARNING sign should not be skipped and all indicated conditions must be
fully understood and met.
The CAUTION sign denotes a hazard. An attention to a procedure is called. Not follo
theprocedure correctly could result in damage to the equipment. Do not proceed
beyond a CAUTION sign until all indicated conditions are fully understood and met.
Note: This equipment has been tested and found to comply with the limits f
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to pr
vide reasonable protection against harmful interference when the equipment is ope
ated in a commercial environment. This equipment generates electro
and can radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful i
in which case the user will be required to correct the interference at his own expense.

INSTALLATIONS ANWEISUNGEN
Vor Anschluss an das Netz ist die Aufstellanleitung wie nachstehend beschrieben zu beachten. Die
den Sicherheitsanweisugen mussen während aller Phasen des Betriebes, des Services
und der Reparatur dieser Ausrustung beachtet werden. Alle notwendigen Bedingungen die
sicherstellen, dass die Einrichtung zu keiner Gefahr im Sinne dieser Norm führen kann, s
ist nich verantwortlich fur Fehler, die bei der Inbetriebnahme des Gerates
auf Grundlage dieser Sicherheitsanweisungen durch den Betreiber entstehen können.
Reihe ist zur installation gemass Uberspannungs
Installatios Kategorie (Uberspannungs
Kategories) 2 bedeutet: Kleinindustrie, Geräte, bewegliche
Ausrustung etc.. mit Uberspannungen kleiner als Installation Kateg
Dieses Produkt ist ein Gerat mit Schutzklasse1. Damit gefahrliche Energieinhalte und Spannungen
vermieden werden, ist das Geratechassis an eine Schutzerde anzuschliessen. Das Gerat muss an die
AC-Wechselspannungsversorgung mit 3 Leit
ern (L, N, PE) angeschlossen werden. Der PE
Anschluss ist an einen festen Erder anzuschliessen. Bei Festverdrahtung des Gerates ist
sicherzustellen, dass der PE Anschluss als erstes durchgefuhrt wird.
Jede mogliche Unterbrechung des PE
Trennung der PE Masses kann einen moglichen
elektrischen Schlag hervorrufen, der Personenschaden zur Folge hatte.
Es besteht Energiegefahr am RS232/RS485 und IEEE Anschluss, falls die Ausgangsspannung des
tes grosser ist als 400V und der positive Ausgangsanschluss des Netzteiles geerdet wird. Dies gilt
insbesondere auch bei Reihenschaltungen von unterschiedlichen Netzteilen. Wird die RS232/485 oder
IEEE Schnittstelle verwendet, ist darauf zu achten, dass de
Ausgangsanschluss nicht geerdet
Sicherungen durfen nur durch autorisierte
Service Personen ausgetauscht
werden. Um Brandgefahr vorzubeugen, sind nur Sicherungen zu verwenden mit gleicher Bauart und
harakteristik. Siehe hierzu Wartungsanweisungen in Kapitel 6 bezuglich Sicherungen.
Anschluss an Versorgungsstromkreis
Der Betrieb des Gerates ist nur fur den dafur spezifizierten Wechselspannungsbereich und der
angegebenen Frequenz erlaubt.
gangsspannungsbereich der Genesys
einen sicheren Betrieb des Gerates ist eine Abweichung von max. +/
Die Gerateabdeckung darf nur im stromlosen Zustand g
eoffnet werden. Interne Modifikationen, sowie
Bauteileaustausch ist nur durch
qualifiziertes Personal erlaubt. Vor
Austausch von Bauteilen ist das Netzkabel bzw. Die Versorgungsspannung zu trennen.
Energieversorgungsanschlusse sind
immer zu trennen um Personenverletzungen durch gefahrliche
Energieinhalte und Spannungen auszuschliessen. Die Stromkreise sind zu entladen, extreme
Spannunsquellen sind zu entfernen bevor Bauteile bzw. Komponenten getauscht werden.

Anderungen and Bauteileersatz
und Anderungen durfen nur von autorisiertem
PERSONEN durchgefuhrt werden. Fur Reparaturen oder Anderungen ist das
Serie ist gemassden Sicherheitsabnahmen fur folgende
Betriebsbedingungen zugelassen.
*Stationare Einrichtungen in Gebauden.
*Umgebungstemperaturebereich: 0
aximale Relative Luftfeuchtigkeit: 90% (nicht kondensierend).
*Betriebshohe: bis zu 3000m.
VORSICHT Spannungsfuhrende Teile
Gefahr durch elektrischen Schlag bzw.
rat bzw. Gerateteile werden mit diesem Symbol
gekennzeichnet, wenn es fur den Benutzer notwendig ist, sich auf die Anweisungen im
spannungsfuhrende Teile“ mit gefahrlicher Spannung an.
tzerde. (z.B. Masseanschlussan einenVerbraucher).
Symbol fur Schalter oder Drucknopfe
Symbol fur Schalter oder Drucknopfe
Symbol fur Bereitschaft (Standby)
Dieses Warnaufschrift weist auf eine Gefahr hin, die eine Uberprufunganweisung nach
sich ziecht. Nichteinhaltung kann zu Personenschaden fuhren. Dieser Warnhinweis darf
ersprungen werden und die beschriebene Vorgehensweise musstrikt verstanden
werden und dementsprechend umgesetzt werden.
Diese „Vorsichtswarnung“ weist auf eine Gefahr hin, die einer Vorkehrung bedarf.
zur Zerstorung der Anlage oder des Gerates fuhren. Bitte
berucksichtigen Sie alle Anweisungen, die dort beschreiben sind, bevor Sie mit Benutzung
der Anlage bzw. des Gerates fortfahren.

CHAPTER 1 GENERAL INFORMATION
Manual contains the operating instructions, installation instructions and specifications of
00W power supply series. The instructions refer to the standard power supplies,
in RS232/RS485 serial communication. For inform
ation related to operation with the
optional IEEE programming, refer to User Manual for Power Supply IEEE Programming Inte
power supplies are wide output range, high performance switching power supplies
series is power factor corrected and operates from AC voltage range of 190
three phase for 200V models and 380
VAC three phase for 400VAC models. Output Voltage and
Current are continuously displayed and LED indicators show the co
mplete operating status of the
power supply. The Front panel controls allow the user to set the output parameters, the protections
Voltage protection, Under
Voltage limit and Foldback) and preview the se
ssary connectors to control and monitor the power supply operation by remote
analog signals or by the built
in serial communication (RS232/RS485).GPIB programming
Analog programming/monitoring
Models with rated output from 0
Constant Voltage / Constan
t Current with automatic crossover.
Active power factor correction.
Embedded Microprocessor Controller.
Voltage & Current high resolution adjustment by digital encoders.
High accuracy programming/readback
bration (no internal trimmers / potentiometers).
Independent Remote ON/OFF (opto
isolated) and remote Enable/Disable.
Parallel operation (Master/Slave) with Active current sharing.
Remote sensing to compensate for voltage drop of power
External Analog Programming and Monitoring standard (0

Cooling fan speed control for low noise and extended fan life.
no ventilation holes at the top and bottom surface of the power supply.
interface (SCPI compatible).
Optional Isolated Analog programming/monitoring (0
10V, user selectable and 4
Multiple output power system
power supplies series can be configured into a programmable power system of up to
in RS232/RS485 communication port and the RS485 linking cable provided
In a GPIB system, each power supply can be controlled using the optional GPIB controller (factory
Control via the serial communicati
The following parameters can be programmed /
via the serial communication port:
Output Voltage measurement.
Output Current measurement.
Foldback protection setting
r-voltage protection setting and readback.
Voltage limit setting and readback.
supply start up mode (last setting or safe mode).
Analog voltage programming and monitoring
Analog inputs and outputs are provided at the rear panel for analog contr
ol of the power supply. The
Output Voltage and the Current can be programmed by analog voltage or by resistor, and can be
monitored by analog voltage. The power supply output can be remotely set to On or Off and analog
signals monitor the proper operation
of the power supply and the mode of operation (CV/CC).
power supplies of the same Output Voltage and Current rating can be paralleled in a
slave configuration with automatic current sharing to i
Output connections are made to rear panel bus
bars for models up to 100V and to a 4
clamp connector for models above 100V rated output voltage. Either the positive or negative terminal
may be grounded or the output may b
e floated. Models up to 60VDC Rated Output shall not float ou
60VDC above/below chassis ground. Models >60VDC Rated Output shall not float
600VDC above/below chassis ground. Contact factory for assistance with higher
Local or remote sense may be used. In remote sense, the voltage drop on the load wires should be
minimized. Refer to the specifications for the maximum vol

Cooling and mechanical construction
series is cooled by internal fans. At the installation, care must be taken to allow free
airflow into the power supply via the front panel and out of the power supply via the rear panel. The
sysTMpower supplies have a compact and lightweight packag
e, which allows easy installation
and space saving in the application equipment.
Accessories are delivered with the power supply or separately upon ordering. The list below shows
the possible accessories and ordering n
Serial link cable, for linking power supplies by RS485 communication is provided with the power su
Cable description: 0.5m length, shielded, RJ
45 type plugs, 8 contacts (P/N:GEN/RJ
9).Strain relief for AC cord.
Output bus bar connection hardware.
AC cables are not provided with the power supply.
-1for recommended AC input cables (customer supplied). Add a non
y the national safety standards of the county of usage.
AWG (3 wire plus safety ground), stranded
length, outer diameter: 9
AWG (3 wire plus safety ground), stranded
length, outer diameter: 9
-1: Recommended AC input cable
Observe all torque guidelines within this manual. Over
Unit or accessories. Such damage is not covered under manufacturers warranty.

*1: Minimum voltage is guarantee
d to maximum 0.2% of the rated output voltage.
rent is guaranteed to maximum 0.4% of the rated output current.
*3: For cases where conformance to various safety standards (UL, IEC etc.) is required, to be
Phase 200V models: at 200Vac input voltage
Phase 400V: at 380Vac input voltage. With rated output power.
*5: Not including EMI fil
load, constant input voltage. Measured at the
300V models: measured with J
For 600V model: measured with 10:1 probe.
to 10% of rated output voltage, with rated, resistive load.
*10: From 90% to 10% of rated output voltage.
*11: For load voltage change, equal to the unit v
oltage rating, constant input voltage.
V models the ripple is measured at 2V rated output voltage and rated output current.
For other models, the ripple is measured at 10
100% of rated output voltage and rated output
urrent programming readback and monitoring accuracy does not include the
nd load regulation thermal drift
2.12 SUPPLEMENTAL CHARACTERISTICS
The supplemental characteristics give typical but non
warranted performance characteristics. Th
supplemental characteristics are useful in a
sessing applications for the power supply. Several kinds
of supplemental characteristics are listed below.
Evaluation Data: Typical performance of the power supply.
Reliability Data: Reliability Performance of
EN61000 Data: Performance of the power supply under EN61000 test conditions.
EMI Data: Typical EMI (conducted and radiated) performance of the power su
The supplemental characteristics data is held in each

00W POWER SUPPLIES OUTLINE DRAWINGS

sysTMpower supplies generate magnetic fields, which might affect
the operation of other instruments. If your equipment is su
magnetic fields, do not position it adj
cent to the power supply.
To avoid electric shock hazard, do not insert co
through the front panel slits.
This Chapter contains instructions for initial inspection, preparation for use and repackaging for shi
ment. Connection to PC, setting the communication port and linking Genesys
In order to be operational the power supply must be connected to an appropriate AC source. The AC
source voltage should be within the power supply specification. Do not apply power before reading
1 below, describes the basic setup procedure. Follow the instructions in Table 3
quence given to prepare the power supply for use.
Initial physical inspection of the power su
Installing the power supply,
Connecting the power supply to the AC source
Wire size selection. Local/Remote sensing. Single
The power supply setting at shipment.
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 damage, which may have occurred in transit.
The inspection should confirm that there is no ex
terior damage to the power supply such as broken
knobs or connectors and that the front panel and meters face are not scratched or cracked. Keep all
packing material until the inspection has been completed. If damage is detected, file a claim with ca
immediately and notify the
sales or authorized service facility nearest
series is intended only for installation in Restricted
Access Location (RAL). Access to Hazardous parts (rear side of
the power supply) shall be prevented after i

Ensure that the screws used to attach the slides to the unit do
ore than 6mm into the sides of the unit.
power supply series is designed to fit in a standard 19” equipment rack.
3.4.1 To install the Power Supply in a rack:
1.Use the front panel rack
mount brackets to install the power supply in the rack.
Use a support bar to provide adequate support for the rear of the power supply. Do not o
struct the air exhaust at the rear panel of the unit.
3.4.2 Rack Mount Slides (optional
Use rack mount slides: General Devices P/N: CC3001
S160 or equivalent to install the unit in a
standard 19” equipment rack. Refer to Fig. 3
1 for slides assembly instructions. Use three #10
32x0.38”(max.) screws at each side. To prevent internal
damage, use the specified screw length only.
3.4.3 Plastic Supporting legs
Use the four plastic legs supplied with the unit, when the power supply is mounted on a surface or
when units are stacked without rack support. When using the plastic l
egs, maximum three units can
3.5 LOCATION, MOUNTING AND COOLING
This power supply is fan cooled. The air intake is at the front panel and the exhaust is at the rear
panel. Upon installation, allow cooling air to reach the front panel ventilatio
n inlets. Allow a minimum
stricted air space at the front and the rear of the unit.
The power supply should be used in an area that the ambient temperature does not exceed +50
3.6 AC SOURCE REQUIREMENTS
ned for use in TN, TT and IT power distribution systems.
input option, the Genesys
W series can be operated from a nominal 190V to 240V. three
rent required for each model is specified in Chapter 2. Ensure that under heavy load, the AC voltage
supplied to the power supply does not fall below the specifications d

The AC input cord is not provided with the power supply
3.7 AC INPUT POWER CONNECTION
be connected to the AC source via protective device (circuit br
The power supply ON/OFF switch is not the main disconnect device and does not completely disco
nect all the circuits from the AC source.
ely rated disconnect device such as circuit breaker, type B plug on power cord,…etc.,
shall be provided in the final installation. The disconnect device shall comply with UL/IEC 60950
1 re-quirements and shall be easily accessible.
The AC input connector is a
header (Phoenix Contact P/N:PC6
Phoenix Contact P/N:PC 6/4
10,16), located on the rear panel.
Use suitable wires and tigh
phase 400V models. Refer to Table 1
Refer to Section 1.3.4 for d
etails of the AC input cords and to section 3.
Strip the outside insulation of the AC cable approx. 10cm (3.94 inches). Trim the wires so that
the ground wire is 10mm longer than the other wir
es. Strip 10mm (0.4 inches) at the end of
Connection of this power supply
should be made by an electrician or other qualified perso
There is a potential shock hazard if the power supply chassis
(with cover in place) is not connected to an electrical safety
ground via the safety ground in the AC input connector.
Some components inside the power supply are at AC vol
even when the On/Off switch is in the “Off” position. To avoid
electric shock hazard, dis
connect the line cord and load and
wait two minutes before removing cover.

Unscrew the base of the strain relief from the helix
shaped body. Insert the base through the
outside opening in the AC i
put cover and screw the locknut securely (11
shaped body onto the AC cable. Insert the stripped wires through the strain r
lief base until the outer cable jacket is flush with the edge of the base. Tighten (16
(18-20Nm) the body to the base
while holding the cable in place. Now the cable is securely
fastened inside the strain relief. R
the AC wires to the terminals of the input plug supplied with the unit. To connect the wires,
loosen the terminal screw, insert th
e stripped wire into the terminal and tighten the screw securely (
3 for details. Pay attention to connect the wires according to
the polarity marking on the plug.
5.Connect the AC input plug to the AC input connector at the power supply rear panel. Fasten the plug to
the connector using the two screws at each side of the plug.
Route the wires inside the cover to prevent pinching. F
asten the cover to the unit using the M3x8 Flat
Head screws are provided. Refer to Fig.3
4 for details. Tighten screws securely (4.8
Fig.3-2: Stripped Wires installed in Strain Relief

The following procedure ensures that the power supp
ly is operational and may be used as a basic
incoming inspection check. Refer to Fig. 4
2 for the location of the controls indicated in
Ensure that the power supply is configured to the default setting:
Off switch at Off position.
Dip switch: All positions at Down (“Off”) position.
J2 Sense connector: Configured to Local Sense as shown in Fig. 3
5: Sense connector default connection
For units equipped with IEEE option, ensure that the IEE
E_En switch is in Up (default) position (R
2, item 9 for location), if checkout is to be done in IEEE mode.
Connect the unit to an AC source as described in Section 3.7.
Connect a DVM with appropriate cables for the rated voltage to the output
Turn the front panel AC power switch to On.
Turn on the output by pressing the OUT pushbutton so the OUT LED illuminates.
Observe the power supply VOLT display and rotate the Voltage encoder. Ensure that the Ou
e varies while the VOLT encoder is rotated. The minimum control range is from zero to the
maximum rated output for the power su
Compare the DVM reading with the front panel VOLT display to verify the accuracy of the VOLT
front panel VOLT LED is On.
Turn Off the front panel AC power switch.
Ensure that the front panel AC power switch is at the Off position and the DVM connected to the
output terminals shows zero voltage.
Connect a DC shunt across the
output terminals. Ensure that the shunt and the wire current ra
ings are higher than the power supply rating. Connect a DVM to the shunt.
Turn the front panel AC power switch to the On position,
Turn On the output by pressing OUT pushbutton so the OUT LED
Observe the power supply CURRENT display and rotate the CURRENT encoder. E
Output Current varies while the CURRENT encoder is rotated. The minimum control range is from
zero to the maximum rated ou
put for the power supply model
Compare the DVM reading with the front panel CURRENT display to verify the accuracy of the
CURRENT display. Ensure that the front panel CURRENT LED is On.
Turn Off the front panel AC power switch.
Remove the shunt from the power supply output terminals.
Refer to Section 5.3 for explanation of the OVP function prior to performing the procedure below.
Turn the front panel AC power switch to the On position and turn on the output by pressing OUT
Using the VOLT encoder, adjust the Output
Voltage to approx. 10% of the unit voltage rating.

Momentarily press the OVP/UVL button so that the CURRENT display shows “OUP”. The
VOLTAGE display will show the last se
Rotate the VOLT encoder CCW to adjust the OVP setting to 50
% of the unit voltage rating.
Wait a few seconds until the VOLT display returns to show the Output Voltage.
Adjust the Output Voltage toward its maximum and check that the Output Voltage cannot be i
creased more than the OVP setting.
ing Step 3 and rotating the VOLT encoder CW.
Refer to Section 5.4 for explanation of the UVL function prior to performing the procedure below.
Press the OVP/UVL button TWICE so that the CURRENT display shows “UUL”. The VOLTAGE
display will show the last setting of the UVL level.
Rotate the VOLT encoder to adjust the UVL level to approx. 10% of the unit voltage rating.
Wait a few seconds until the VOLT display returns to show the output voltage.
Adjust the output voltage toward i
ts minimum and check that the output voltage cannot be d
creased below the UVL setting.
Adjust the UVL limit to the minimum by repeating Step 1 and rotating the VOLT encoder CCW.
Refer to Section 5.5 for explanation of the FOLD function pr
ior to performing the procedure below.
Ensure that the Output Voltage is set to approx. 10% of the unit rating.
Adjust the CURRENT encoder to set the Output Current setting to approx. 10% of the unit rating.
Momentarily press the FOLD button. Ensure that t
he FOLD LED illuminates. The Output Voltage
Short the output terminals momentarily (approx. 0.5 sec.). Ensure that the Output Voltage falls to
zero, the VOLT display shows “Fb” and the ALARM LED blinks.
Press the FOLD button again to can
cel the protection. The Output Voltage remains zero.
Press the OUT button. Ensure that the Output Voltage returns to its last setting.
Turn the output off by pressing the OUT button. Ensure that the VOLT display shows “OFF”.
the REM/LOC button for approx. 3 sec. The VOLT display will show the commun
Using the VOLT adjust encoder, check that the address can be set within the range of 0 to 30.
M/LOC button for approx. 3 sec. The CURRENT display will show the
communication port Baud Rate.
Using The CURRENT adjust encoder, check that the Baud Rate can be set to 1200, 2400, 4800,
Shorting the output may expose the user to hazar
voltages. Observe proper safety procedures.

e following considerations should be made to select wiring for connecting the load to the power
supply:Current carrying capacity of the wire (refer to Section 3.9.2)
Insulation rating of the wire should be at least equivalent to the maximum output volta
Maximum wire length and voltage drop (refer to Section 3.9.2)
Noise and impedance effects of the load wiring (refer to Section 3.9.4).
Current Carrying Capacity
Two factors must be considered when selecting the wire size:
ld be at least heavy enough not to overheat while carrying the power supply load
current at the rated load, or the current that would flow in the event the load wires were
Wire size should be selected to enable voltage drop p
er lead to be less than 1.0V at the rated
current. Although units will compensate for up to 5V in each load wire, it is recommended to
minimize the voltage drop (1V typical maximum) to prevent excessive output power consum
tion from the power supply and po
or dynamic response to load changes. Please refer to T
3 for maximum wire length (to limit voltage drop) in American and European
Maximum length in Feet to limit
2: Maximum wire length for 1V drop on lead (in feet)
Turn Off the AC input power before making or changing any
rear panel connection. Ensure that all connections are s
htened before applying power. There is a potential
shock hazard when using a power supply with a rated ou

When local sensing, a short from
will cause damage to the power supply. Reversing the sense
wires might cause damage to the power supply in local and
remote sensing. (Do not connect
Maximum length in meters to limit
voltage drop to 1V or less
3: Maximum wire length for 1 V drop on
For currents not shown in Table 3
Maximum length=1000/(current x resistivity)
Where current is expressed in Amperes and resistivity in ohms/km or ohms/1000ft.
The wires should be properly termi
nated with terminals securely attached. DO NOT use unterm
wires for load connection at the power supply.
Noise and Impedance Effects
To minimize the noise pickup or radiation, the load wires and remote sense wires should be twisted
e shortest possible length. Shielding of sense leads may be necessary in high noise env
ronments. Where shielding is used, connect the shield to the chassis via a rear panel Ground screw.
Even if noise is not a concern, the load and remote sense wires shou
coupling, which might impact the stability of power supply. The sense leads should be separated from
Twisting the load wires reduces the parasitic inductance of the cable, which could produce high fr
oltage spikes at the load and the output of the power supply, because of current variation in
The impedance introduced between the power supply output and the load could make the ripple and
noise at the load worse than the noise at the pow
er supply rear panel output. Additional filtering with
bypass capacitors at the load term
nals may be required to bypass the high frequency load current.
Inductive loads can produce voltage spikes that may be harmful to the power supply. A diode should
be connected across the output. The diode voltage and current rating shou
power supply maximum output voltage and cu
rent rating. Connect the cathode to the positive output
and the anode to the negative output of the power supply.
Where positive load transients such as back EMF from a motor may occur, conn
sor across the output to protect the power supply. The breakdown voltage rating of the suppressor
must be approximately 10% higher than the max
mum output voltage of the power supply.

Making the load connections
6 for connection of the load wires to the power supply bus
bars shield to the chassis.
ous voltages may exist at the outputs and the load conne
tions when using a power supply with a rated output greater than 40V.
To protect personnel against accidental contact with hazardous vol
ages, ensure that the load and its connections have no accessi
parts. Ensure that the load wiring insulation rating is greater than or
equal to the maximum output voltage of the power supply.
Ensure that the load wiring mounting hardware does not short the ou
ting cables must have some form of strain relief
to prevent loosening the connections or bending the bus

Hazardous voltages exist at the outputs and the load connections. To
protect personnel against accidental contact with hazardous voltages,
and its connections have no accessible live parts.
Ensure that the load wiring insulation rating is greater than or equal to
the maximum output voltage of the power supply.
Wire terminal lug (2 places)
Screws tightening torque: 290-310Lb-inch.
6: Load wires connection, 8V to 100V models
The 150V to 600V models have a four terminal wire clamp output connector. The two left terminals
are the positive outputs and the two right terminals are the negative outputs. Max. 30A per terminal.
quirements are as follows:

Follow the instructions below for connection of the load wires to the power supply:
Strip approx. 10mm at the end of each of the wi
res.2.Loosen the connector terminal screws.
Insert the stripped wires into the terminal and tighten the terminal screw securely (see Fig.3
Loosen the two chassis screws marked “A” halfway as shown in Fig.3
Assemble the protective shield to the chass
is and tighten the two screws to fix the shield to the
-9). Screws tightening torque: 4.8
Tighten the wires to one of the shield sides using ty
wrap or equivalent. Refer to Fig.3
Ensure that the wire leng
th inside the shield is long enough to provide proper strain relief.

Connecting single loads, local sensing (default).
11 shows recommended load and sensing connections for a single load. The local sense lines
shown are default connections at th
e rear panel J2 sense connector. Local sensing is suitable for a
plications where load regulation is less crit
Connecting single loads, remote sensing
12 shows recommended remote sensing connection for single loads. Remote sensing is used
n, in Constant Voltage mode, the load regul
tion is important at the load terminals. Use twisted or
shielded wires to minimize noise pick
up. If shielded wires are used, the shield should be co
to the ground at one point, either at the power supply
chassis or the load ground. The optimal point
for the shield ground should be determined by e
Connecting multiple loads, radial distribution method
13 shows multiple loads connected to one supply. Each load should be connected to th
supply’s output terminals using separate
airs of wires. It is recommended that each pair of wires will
be as short as possible and twisted or shielded to minimize noise pick
up and radiation. The sense
wires should be connected to the power supply
output terminals or to the load with the most critical
Fig.3-11: Single load connection, local sensing
shortest length possible.
Fig.3-12: Remote sensing, single load

Fig.3-13: Multiple loads connection, radial distribution, local sense
Multiple load connection with distribution terminals
If remotely located output distribution terminals are used, the power supply output terminals should be
connected to the distribution term
nals by pair of twisted and/or shielded wires. Each load should be
separately connected to the remote distribution terminals (see Fig.3
If remote sensing is required, the sensing wires should be connected to the dis
tribution terminals or at
Either the positive or negative output terminals can be grounded. To avoid noise prob
mode current flowing from the load to ground, it is recommended to ground the
terminal as close as possible to the power supply chassis ground.
Always use two wires to connect the load to the power supply regardless of how the system is
Models up to 60VDC Rated Output shall not float outputs more
60VDC above/below chassis ground. Models > 60VDC
not float outputs more than +/
above/below chassis ground.
Fig.3-14: Multiple loads connection with distribution terminal

OUTPUT TERMINAL GROUNDING
There is a potential shock hazard at the RS232/RS485 and the IEEE
using power supplies with rated or combined voltage greater than 400V with the
Positive Output of the power supplies grounded. Do not connect the Positive ou
put to ground when using the RS232/RS485 or IEEE under the above conditions.
3.10 LOCAL AND REMOTE SENSING
The rear panel J2 sense connector is u
sed to configure the power supply for local or remote sensing
of the Output Voltage. Refer to Fig.3
The power supply is shipped with the rear panel J2 sense connector wired fo
Output Voltage. See Table 3
4 for J2 terminals assignment. With local sensing, the Output Voltage
tion is made at the output terminals. This method does not compensate for voltage drop on the
load wires, therefore it is recomme
nded only for low load current applications or where the load reg
Remote positive sense (+S)
Local positive sense. Connected internally to the positive output terminal (+LS).
)J2-4Local negative sense. Connected internally to the negative output terminal (
There is a potential shock hazard at the sense connector when using a power
supply with a rated Output Voltage greater than 40V. Local sense and remote
hould have a minimum insulation rating equivalent or greater than
the maximum Output Voltage of the power supply. Ensure that the connections at
the load end are shielded to prevent accidental contact with hazardous voltages.
Fig.3-15: Sense connector location

Use remote sense where the load regulation at the load end is critical. In remote sense,
supply will compensate for voltage drop on the load wires. Refer to the power supply specific
the maximum voltage drop on load wires. The voltage drop is subtracted from the total voltage avai
able at the output. Follow the instructions
below to configure the power supply for remote sensing:
Ensure that the AC On/Off is in the Off position.
Remove the local sense jumpers from J2.
Connect the negative sense lead to terminal J2
5 (-S) and the positive sense lead to term
J2 mating connector. Ensure that the J2 mating connector is plugged securely into
the rear panel sense connector, J2.
Turn On the power supply.
If the power supply is operating in remote sense and either the positive or negative load wire is not
nnected, an internal protection circuit will activate and shut down the power supply. To resume
operation, turn the AC On/Off to the Off position, connect the open load wire, and turn On the
If the power supply is operated without the remote
sense lines or local sense jumpers, it will co
tinue to work, but the output voltage regulation will be degraded. Also, the OVP circuit may act
vate and shut down the power supply.
3.10.4 J2 sense connector technical information
J2 connector type: MC 1.5/
3.11 REPACKAGING FOR SHIPMENT
To ensure safe transportation of the instrument, contact the
vice facility near you for Return Authorization and shipping information. Please attach a tag to the
power supply describing the problem and specifying the owner, model number and serial number of
the power supply. Refer to Wa
rranty Information for further instructions.
There is a potential shock hazard at the sense point when using a power supply
with a rated Output Voltage greate
r than 40V. Ensure that the connections at the
load end are shielded to prevent accidental contact with hazardous voltages.
nse wires, ground the shield in
one place only. The location can be the power supply
chassis or one of the output terminals.

CHAPTER 4 FRONT AND REAR PANEL CONTROLS AND CONNECTORS
Power Supply series has a full set of controls, indicators and connectors that allow
the user to easily setup and operate the
unit. Before starting to operate the unit, please read the fo
lowing Sections for explanation of the functions of the controls and connectors terminals.
Section 4.2: Front Panel Controls and Indicators.
Section 4.3: Rear Panel Connections and Controls.
4.2 FRONT PANEL CONTROLS AND INDICATORS
1 to review the controls, indicators and meters located on the power supply front panel.
1: Front Panel controls and indicators
High resolution rotary encoder for adjusting the
Output Voltage. Also adjusts the OVP/UVL levels
Green LED, lights for constant
-segment LED display. Normally displays
the Output Voltage. When the PREV button is
pressed, the display indicates the programmed
setting of the Output Voltage. When the OVP/UVL
button is pressed, the Voltage display indicates
Fig.4-1: Front panel controls and indicators

4-1: Front Panel Controls and Indicators
4 digit, 7 segment LED display. Normally displays the ou
Current. When the PREV button is pressed, the display i
dicates the programmed setting of
Green LED, lights for Constant
High resolution rotary encoder for adjusting the Output Cu
rent. Also selects the Baud
Output ON/OFF control. Press OUT to set
the output On or Off. Press to reset and turn On the ou
after OVP or FOLD alarm events have occurred.
ess and hold OUT button to toggle
Restart”. The VOLT display
will cycle between “SAF” and “AUT”. Releasing the OUT
button while one of the modes is displayed, selects that
en the DC output is enabled.
: Go to local. Press REM/LOC to put the unit
into Local mode (REM/LOC button is disabled at Local
Address and Baud Rate setting. Press
3 sec. to set the Address with the
VOLTAGE encoder and the Baud Rate with the CURRENT
Green LED, lights when the unit is in Remote mode.
Foldback protection control.
To release Foldback alarm event, press OUT to e
Press FOLD again to cancel the Foldback protection.
Green LED, lights when Foldback protection is On.
Over Voltage Protection and Under Voltage limit se
Press once to set OVP using VOLTAGE encoder (the cu
rent display shows “OUP”)
Press again to set the UVL using VOLTAGE encoder (the
current display shows “UUL”).
Press PREV to display the Output Voltage
and Current setting. For 5 sec. the display will show the se
ting and then it will return to show the actual Output Voltage
Front Panel Lock. Press and hold
to toggle between “Locked front panel” and
“Unlocked front panel”. The display will cycle b
and “UFP”. Releasing the PREV button while one of the
modes is displayed selects that mode.

1: Front Panel Controls and Indicators (con
Green LED, lights when PREV button is pressed
Voltage and Current Fine/Coarse adjustment control.
Operates as a toggle switch. In Fine mode, the
encoders operate with high
resolution and in Coarse mode with lower resolution
Green LED, lights when the unit is in Fine mode.
Red LED, blinks in case of fault detection. OVP, OTP
Foldback, Enable and AC fail detection will cause the
4.3 REAR PANEL CONNECTIONS AND CONTROLS
2 to review the connections and
controls located on the power supply rear panel. Refer to
2 for explanations about the rear panel connections and controls.
2: Rear panel connections and controls
Bus-bars for 8V to 100V models.
Wire clamp connector for 150V to 600V models.
RJ-45 type connector, used for connecting power supplies to
of computer for remote control purposes.
When using several power supplies in a power system, the first
In is connected to the computer and the remaining

ons and Controls (continued)
RJ-45 type connector, used for daisy
chaining power supplies to
form a serial communication bus.
emote analog interface. Includes Output Voltage
and Current programming and monitoring signals, Shut
(electrical signal), Enable/Disable control (dry
Supply OK (PS_OK) signal and operation mode (CV/CC) si
switch for selecting remote programming and
monitoring modes for Output Voltage, Output Current and other
Connector for making remote sensing connections to the load fo
regulation of the load voltage and compensation of load wire
plate for standard units. Isolated Remote Analog pr
gramming connector for units equipped with Isolated Analog co
ctor for units equipped with IEEE pr
switch for selecting IEEE mode or
RS232/RS485 mode when IEEE option is installed.
M4 stud and hardware for chassis ground conne
AR PANEL SW1 SETUP SWITCH
The SW1 Setup switch (see Fig.4
switch that allows the user to choose the fo
Internal or remote programming for Output Voltage and Output Current.
Remote voltage or resistive programming of Output Vo
ltage and Output Current.
Select range of remote voltage and resistive programming.
Select range of output Voltage and Output Current monitoring.
Select between RS232 and RS485 communication interface.
isable the rear panel Enable/Disable control (dry contact).
Fig.4-3: SW1 setup DIP-switch

3 for description of SW1 position functions. The factory default setting is Down
3: SW1 Positions Functions
Remote Analog Programming
External Voltage or External Resi
External Voltage or External Resi
-3Programming Range Selec
Enable/Disable control is
Before making any changes to the SW1 switch setting, disable the power supply output by pres
ing the front panel OUT button. Ensure that the Output Voltage falls to zero and the OUT LED is
off. Then use any small flat
bladed screwdriver to change th

4.5 REAR PANEL J1 PROGRAMMING AND MONITORING CONNECTOR
The J1 Programming and Monitoring connector is a DB25 subminiature connector located on the
power supply rear panel. Refer to Table 4
4 for description of the connect
supply default configuration is Local operation, which does not require connections to J1. For remote
tion using J1 signals, use the plug provided with power supply (or equivalent type). It is essential
ug to conform to Safety Agency requirements. If a shield is r
wires, connect the shield to a power supply chassis ground screw.
4.5.1 Making J1 connections
J1 Connector type: AMP, P/N:
J1 plug description: AMP, P/N:745211
-7-Wire dimension range: AWG26
Extraction tool: AMP, 91232
-2Before making any connection, turn the AC On/Off switch to the Off position a
panel display has turned Off.
The programming return terminals (12, 22 and 23) are re
erenced internally to the
V potential of the power supply. Do
ny of these terminals relative to the
negative sense. Use the Isolated Programming interface
option to allow control from a programming source at a di
ferent potential relative to the power supply negative output.
To prevent ground loops and to maintain power supply isol
when programming from J1, use an ungrounded pr
There is a potential shock hazard at the output when using a
power supply with rated output greater than 4
with minimum insulation rating equivalent to the maximum
output voltage of the power supply.

Enable/Disable the power supply output by dry
(short/open) with ENA_OUT.
Isolated Interface Common. Return for the SO control,
PS_OK signal and for the optional IEEE interface.
Input for selecting between Local or Remote analog pr
Input for remote analog voltage/resistance progra
Input for remote analog voltage/resistance programming
for monitoring the power supply Output Voltage.
Control Common. Return for VMON, IMON, CV/CC,
Connected internally to the negative sense potential (
Enable/Disable the power supply output by dry
(short/open) with ENA_IN.
Off control of the power supply output.
Output for indication of the power supply status.
Output for indicating if the unit is in Local or Remote
Return for VPGM input. Connected internally to the “
Return for IPGM input. Connected internally to the “
Output for monitoring the power supply Output Current.
J1-25POutput for current balance in parallel operation.

CHAPTER 5 LOCAL OPERATION
This Chapter describes the operating modes that are not involved in programming and monitoring the
power supply via its serial communication port (RS232/RS485) or by remote analog signals. E
that the REM/LOC LED on the front panel is Of
f, indicating Local mode. If the REM/LOC LED is On,
press the front panel REM/LOC button to change the operating mode to Local.
For information regarding Remote Analog Programming, refer to Chapter 6.
For information regarding usage of the Serial Communi
cation Port, refer to Chapter 7.
The power supply has two basic operating modes: Constant Voltage Mode and Constant Current
Mode. The mode in which the power supply operates at any given time depends on the Output Vol
utput Current setting and the load resistance.
5.2.1 Constant Voltage Mode
In constant voltage mode, the power supply regulates the Output Voltage at the selected value,
while the load current varies as required by the load.
While the power supply operate
s in constant voltage mode, the VOLTAGE LED on the front panel
Adjustment of the Output Voltage can be made when the power supply output is enabled (Output
On) or disabled (Output Off). When the output is enabled, simply rotate the VOLTAGE enc
knob to program the output voltage. When the output is disabled, press the PREV button and
then rotate the VOLTAGE encoder knob. The VOLTAGE meter will show the programmed Output
Voltage for 5 seconds after the adjustment has been completed. Then the
Adjustment resolution can be set to coarse or fine resolution. Press FINE button to select b
the lower and higher resolution. The FINE LED turns On when the resolution is set to FINE.
In constant current mode, the power supply regulates the Output Current at the selected value,
while the voltage varies with the load requirement.
While the power supply is operating in constant current mode, the CURRENT LED on the front
Adjustment of the Output Current setting can be made when the power supply output is enabled
(Output On) or disabled (Output Off).
Disabled output (Off): Press PREV button and then rotate the Current encoder knob. The
CURRENT meter will show the
programmed Output Current limit for 5 seconds after the adjus
ment has been completed. Then the VOLTAGE meter will display “OFF”.
If after completing the adjustment,
the display shows a different value
than the setting, the power supply may be at current limit. Check the
load condition and the power supply Output Current setting.
The maximum and minimum setting v
alues of the output voltage are
limited by the Over Voltage protection and Under Voltage limit se
Refer to Sections 5.3 and 5.4 for more details.

Enabled output, power supply in Constant Voltage mode: Press the PREV button and then r
tate the CURRENT encoder knob. The C
URRENT meter will show the programmed Output
Current for 5 seconds after the adjustment has been completed, and then will return to show
Enabled output, power supply in Constant Current mode: Rotate the CURRENT encoder
Adjustment resolution can be set to Coarse or Fine adjustment. Press the FINE button to select
between the Coarse and Fine resolution. The FINE LED turns On when the resolution is set to
5.2.3 Automatic Crossover
supply operates in Constant Voltage mode, while the load current is increased to greater
than the current limit setting, the power supply will automatically switch to Constant Cu
the load is decreased to less than the current limit setting, t
he power supply will automatically switch
back to Constant Voltage mode.
OVER VOLTAGE PROTECTION (OVP)
The OVP circuit protects the load in the event of a remote or local programming error or a power su
ply failure. The protection circuit monitors the volt
age at the power supply sense points and thus pr
vides the protection level at the load. Upon detection of an Over Voltage condition, the power supply
The OVP can be set when the power supply output is Enabled (
On) or Disabled (Off). To set the OVP
level, press the OVP/UVL button, so that the CURRENT meter shows “OUP”. The VOLTAGE meter
shows the OVP setting level. Rotate the VOLTAGE encoder knob to adjust the OVP level. The display
will show “OUP” and the settin
g value for 5 seconds after the adjustment has been co
then will return to its previous state.
The minimum setting level is approximately 105% of the
set Output Voltage, or the value in Table 7
higher. The maximum setting level is shown in Table 5
-1.To preview the OVP setting, press the OVP/UVL pushbu
RRENT display will show “OUP”. At this
time, the VOLTAGE display will show the OVP setting. A
ter 5 seconds, the display will return to its previous state.
Activated OVP protection indications
When the OVP is activated the power supply output shuts down. The VOLTAGE display shows “OUP”
and the ALARM LED blinks.
Resetting the OVP circuit
To reset the OVP circuit after it activates:
er supply Output Voltage setting below the OVP set level.
Ensure that the load and the sense wiring are connected properly.
There are four methods to reset the OVP circuit.
Turn the power supply Off using the AC On/Off switc
h, wait until the front panel display
turns Off, then turn the power supply On using the AC On/Off switch.
Turn the power supply output Off and then On using the SO control (refer to Section 5.7).
In this method the power supply should be set to Auto
Send an OUT 1command via the RS232/RS485 communication port.

5.4AUNDER VOLTAGE LIMIT (UVL)
The UVL prevents adjustment of the Output Vol
age below a certain limit. The combination of UVL
and OVP functions, allow the user to create a protec
tion window for sensitive load circuitry.
Setting the UVL can be made when the power supply output is Enabled (On) or Disabled (Off). To set
the UVL level, press the OVP/UVL button TWICE, so that the CURRENT meter shows “UUL”. The
TAGE meter shows the UVL setting level. Rotate the VOLTAGE encoder knob to adjust the UVL
level. The display will show ‘UUL” and the setting value for 5 seconds after the adjustment has been
completed and then will return to its previous state.
values are limited at the maximum level to approximately 95% of the Output Voltage se
ting. Attempting to adjust the UVL above this limit will result in no response to the adjustment attempt.
protection will shut down the power supply output if the load current exceeds the current
limit setting level. This protection is useful when the load circuitry is sensitive to an overcurrent cond
Setting the Foldback protection
rotection, the FOLD button should be pressed so that the FOLD LED illum
nates. In this condition, transition from Constant Voltage to Constant Current mode will activate the
Foldback protection. Activation of the Foldback protection disables the power supp
the ALARM LED to blink and displays “Fb” on the VOLTAGE meter.
Resetting activated Foldback protection
There are four methods to reset an activated Foldback protection.
Press the OUT button. The power supply output is enabled and the Out
will return to their last setting. In this method, the Foldback protection remains armed, therefore if
the load current is higher than the current limit setting, the Foldback protection will be activated
to cancel the Foldback protection. The power supply output will be di
abled and the VOLTAGE display will show “OFF”. Press the OUT button to enable the power su
Turn the power supply output Off and then On using the SO control (refer to Sectio
method the Foldback protection remains armed, therefore if the load current is higher than the
output current setting, the Foldback prote
Turn the power supply Off using the AC On/Off switch, wait until the front pan
then turn the unit back ON again. The power supply output is enabled and the Output Voltage and
Current will return to their last setting. In this method, the Foldback protection remains armed,
therefore if the load current is higher
than the output current setting, the Foldback protection will
The Output On/Off Enables or Disables the power supply output. Use this function to make adjus
ments to either the power supply or the load without shu
tting off the AC power. The Output On/Off
can be activated from the front panel using the OUT button or from the rear panel J1 connector. The
OUT button can be pressed at any time to Enable or Disable the power supply output. When the ou
he Output Voltage and Current fall to zero and the VOLTAGE display shows “OFF”.
OFF (SO) CONTROL VIA REAR PANEL J1 CONNECTOR
Contacts 2, 3 and 15 of J1 (Fig.4
2, Item 5) serve as Output Shut
Off (SO) terminals. The SO term
Short contact to disable or enable the power supply output.
The SO function will be activated only when a transition from On to Off is detected after applying AC
power to the unit. (Thus, in Auto
Restart mode, the output will be Enable
d after applying AC power;
even if SO is at an Off level). After an On to Off trans
tion it is detected, the SO will Enable or Disable
the power supply output according to the signal level or the short/open applied to J1. This function is

ting power supplies in a “Daisy
chain” (refer to Section 5.16). The SO control can
also be used to reset the OVP and Fold Protection (refer to Section 5.3 and 5.5 for details).
off by a J1 signal, the VOLTAGE display will show “SO” to
state. J1 contact 15 is the SO signal input and contacts 2 and 3, IF_COM, are the signal return (co
tacts 2, 3 and 15 are optically isolated from the power supply output.
The SO control logic can be selected by the
rear panel SW1 Setup switch. Refer to Table 5
SW1 setting and SO Control Logic.
ENABLE/DISABLE CONTROL VIA REAR PANEL J1 CONNECTOR
Contacts 1 and 14 of J1 (Fig.4
2, item 5) serve as Output Enable/Disable terminals by switch or relay. This fun
r Disabled by the SW1 Setup switch position 9. Refer to Table 5
3 for Enable/Disable function
3: Enable/Disable function and SW1 setting
CV/CC signal indicates the operating mode of the power supply, Constant Voltage or Constant Current
CV/CC signal is an open collector out
put with a 30V parallel zener, at J1
13, referenced to the COM potential at
J1-12 (connected internally to the negative sense potential). When the power supply operates in Constant Vol
age mode, CV/CC output is open. When the power supply operates in Const
ant Current mode, the CV/CC signal
0.6), with maximum 10mA sink current.
The PS_OK signal indicates the fault condition of the power supply. PS_OK is a TTL signal output at J1
ed Interface Common). When a fault condition occurs, the PS_OK level is
low, with a maximum sink current of 1mA; when no fault condition occurs, the PS_OK level is high with a max
mum source current of 2mA. The following faults will set the PS_OK to a Faul
To prevent possible damage to the unit, do not connect any of the
Enable/Disable inputs to the positive or negative output potential.
ble/Disable fault condition clears when units in safe start mode
recovery is by pressing OUT button or by sending an ‘OUT 1’ serial command.
The output will return back ON automatically when the Enable/Disable
Do not connect the CV/CC signal to a voltage source higher than 30VDC. Always
connect the CV/CC signal to vol
tage source with a series resi
current to less than 10mA.

*Enable/Disable open (Power supply is disabled)
Off, Power Supply is shut off)
*IEEE failure (With optional IEEE interface)
ower supply AC On/Off, it can start to its last setting of Output Voltage and Current with
restart mode) or start with the output Disabled (Safe
start mode). Press and hold the
OUT button to select between Safe
rt modes. The VOLTAGE display will continuously cycle
between “SAF” and “AU7” every 3 seconds. Releasing the OUT pushbutton while one of the modes is di
selects that mode. The default setting at shipment is Safe
In this mode, the power supply restores its last operation setting. Upon start
up, the output is enabled
or disabled according to its last setting.
In this mode, the power supply restores its last operation setting and sets the Outp
up, the output is Disabled and the Output Voltage and Current are zero. To Enable the output
and restore the last Output Voltage and Current values, momentarily press the OUT button.
5.12 OVER TEMPERATURE PROTECTON (OTP)
P circuit shuts down the power supply before the internal components can exceed their safe
internal operating temperature. When an OTP shutdown occurs, the display shows “O7P” and the
Resetting the OTP circuit can be automatic (non
d) or manual (latched) depending on the
start mode, the power supply stays Off after the over temperature co
dition has been removed. The display continues to show “O7P” and the ALARM LED cont
blink. To reset the OTP circuit, press the OUT button (or send an OUT ON command via the serial
restart mode, the power supply recovers to its last setting automat
cally when the over temperature condition is remo
The power supply is equipped with Last Setting Memory, which stores several power supply param
Output Voltage setting (PV setting)
Remote/Local: If the last setting was Local Lockout, (latched mode), the supply will return to
(Items 8, 9, 10 are related to Remote Digital Control operation and are explained in Chapter 7)
Power supplies of the SAME MODEL can be connected in series to obtain increased output v
Split connection of the power supplies gives positive and negative output voltage.

Fig.5-1: Series connection, local sensing
Fig.5-2: Series connection, remote sensing
5.14.1 Series connection for increased output voltage
In this mode, two units are connected so that their outputs are summed. Set the Current of each
to the maximum that the load can handle without damage. It is recommended that d
odes be connected in parallel with each unit output to prevent reverse voltage during start up s
quence or in case one unit shuts down. Each diode should be rated to at least
Output Voltage and Output Current. Refer to Fig.5
2 for series operation with local and r
Remote programming in series operation for increased output voltage:
1. Programming by external voltage:
The analog programming circuits of this power supply
are referenced to the negative output potential. Ther
fore, the circuits used to control each series connected
rated and floated from each other.
Using the SO function and PS_OK signa
Off and PS_OK circuits are refe
isolated interface common, IF_COM (J1
IF_COM terminals of different units can be co
obtain a single control circuit for the power supplies co
Do not connected power supplies from diffe
manufacturers in series or in parallel.
When power supplies are connected in s
the load or one of the output terminals is grounded,
no point may be at a greater potential of +/
from ground for models up to 60VDC Rated Output
600VDC from ground for models >60VDC
Rated Output. When using RS232/RS485 or IEEE,
er to the OUTPUT TERMINALS GROUNDING
warning in Section 3.9.11.

Fig.5-3: Series connection for positive/negative output voltages
(*) Diodes are user supplied.
Programming by external resistor is possible. Refer to
4. Programming via the Serial
The communication port is referenced to the IF_COM
cation port (RS232/RS485):
which is isolated from the power su
Therefore power supplies connected in series can be
tors. Refer to Chapter 7 for details.
5.14.2 Series connection for positive and negative output voltage
In this mode, two units are co
figured as a positive and negative output. Set the Output Current limit
of each power supply to the maximum that the load can handle without damage. It is recommended
that diodes be connected in p
arallel with each unit output to prevent reverse voltage during start
in case one of the units shuts down. Each diode should be rated to at least the power supply rated
output voltage and output current. Refer to Fig.5
Remote programming in series operation for positive and negative output voltage
1. Programming by external voltage:
The analog programming circuits of this power su
ply are referenced to the negative output potential.
Therefore, the circuits u
connected unit must be separated and floated from
2. Using the SO function and PS_OK signal:
Off and PS_OK circuits are referenced to
the isolated interface common, IF_COM (J1
The IF_COM terminals of t
nected to obtain a single control circuit for the power
supplies connected in series.
3. Programming by external resistor:
Programming by external resistor is possible. Refer
to section 6.5 for details.
4. Programming via the Serial
Communication port (RS232/RS485):
communication port is referenced to the
IF_COM which is isolated from the power supply
output potential. Therefore power supplies co
nected in series can be chained using the Remote

Up to four units of the same VOLTAGE and CURRENT rating can be connected in parallel to provide
up to four times the Output Current capability. One of the units operates as a Master and the remai
units are Slaves. The Slave units are analog programmed by the Master unit. In remote digital o
eration, only the Master unit can be programmed by the computer, while the Slave units may be co
nected to the computer for voltage, current and status readbac
k only. Follow the following procedure
to configure multiple supplies for parallel operation. Refer to Sec. 5.15
In this method, setting the units as Master and Slaves is made by the r
ear panel J1 connections and
the setup switch SW1. Each unit displays its own output current and voltage. To program the load cu
rent, the Master unit should be programmed to the total load current divided by the number of units in
following procedure to configure multiple supplies for
1. Setting up the Master unit
Set the Master unit Output Voltage to the desired voltage. Program the Output Current to the d
load current divided by the number of paral
lel units. During operation, the Master unit ope
mode, regulating the load voltage at the programmed Output Voltage. Connect the sensing circuit to
local or remote sensing as shown in Fig.5
Setting up the Slave units
put Voltage of the Slave units should be programmed 2
5% higher than the Output
Voltage of the Master unit to prevent interference with the Master unit’s control. The Output Cu
rent setting of each unit should be programmed to the desired load current div
2. Set the rear panel setup switch SW1 position 2 to the up position.
3. Connect a wire jumper between J1
4).-4. Connect J1 terminal 10(IPGM) of the slave unit to J1 terminal 25(P) of t
5. Connect J1 terminal 23(IPGM_RTN) of the slave unit to J1 terminal 12 (COM) of the master unit.
During operation, the Slave units operate as a controlled current source following the Master Ou
Current. It is recommended that the powe
r system be designed so that each unit supplies up to 95%
of its current rating because of the imbalance which may be caused by cabling and connection vol
Daisy Chain Connection: (See Fig. 5.6)
These set up and connections are optional but is str
ongly recommended. It will shut down all
power supplies when a fault condition occurs in any one of them.
hould be in its down position for all power supplies
16 of the Master Supply to J1
16 of the ‘First’ Slave Supply to J1
15 of the ‘Second’ Slave Supply (If any).
16 of the ‘Second’ Slave Supply to J1
15 of the ‘Third’ Slave Supply (If any).
16 of the ‘Last’ Slave Supply to J1
3) common to all supplies (See Fig. 5.6).
Setting Over Voltage protection
The Master unit OVP setting should be programmed to the desired OVP level. The OVP setting of
the slave units should be programmed to a highe
r value than the Master OVP. When the Master
unit shuts down, it programs the Slave unit to zero Output Voltage. If a Slave unit shuts down
(when its OVP is set lower than the Master Output Voltage
and, if all P/S are not daisy chained
, only that Slave unit would shut down, and the remaining Slave units would
Setting Foldback protection
Foldback protection, is desired, may only be used with the Master unit. When the Master unit
shuts down, it programs the Sl
ave units to zero Output Vol

In parallel operation, power supplies can be connected in local or remote sensing. Refer to Fig. 5
5 for typical connections of parallel power supplies. The figures show
units, however the same connection method applies for up to 4 units.
Advanced parallel operation
In this method, multiple supplies can be configured to parallel operation as a single power su
total load current and output volta
ge are displayed by the Master unit and can be readback from the
Master unit. The Slave units display only their operating status (On, Off or Fault condition).
Refer to the following procedure to configure multiple supplies for Advanced parallel operation.
1. Advanced parallel configuration.
Down in the Master Supply and up in all Slave Supplies.
Connect a short between J1
12 in all Slave Supplies.
25 of the Master Supply to J1
10 of all Slave Supplies.
RTN) of the slave unit to J1 terminal 12 (COM) of ma
The following set up connections are optional but are strongly recommended. These
set up and connections will shut down all the parallel power supplies when fault cond
occurs in any one of them.
Switch SW1 position 5 should be in its down position for all power supplies (See Fig.
16 of the Master Supply to J1
15 of the ‘First’ Slave Supply.
16 of the ‘First’ Slave Supply to J1
16 of the ‘Second’ Slave Supply to J1
15 of the ‘Third’ Slave Supply (if any)
16 of the ‘Last’ Slave Supply to J1
-3)common to all supplies
In parallel operation, power supplies can be connected in local or remote sensing. R
5 for typical connections of parallel power supplies. The figures show connection of two
units, however the same co
pplies for up to 4 units.
the units as Master or Slave
a) Depress and hold the FINE button for 3 seconds. The Master/Slave configuration will be displayed
on the Current Display. Rotate the CURRENT encoder to obtain the desired mode. Refer to
-4for the CURRENT display and modes of operation.
Master supply with 1 Slave supply
Master supply with 2 Slave supplies
Master supply with 3 Slave supplies
le 5-4: Setting mode of operation
b) When the desired configuration is obtained, depress and release the FINE button or wait approx. 5
. Master and Slave units default operation
a) When a unit is programmed to Slave mode it enters the Remote mode
with Local Lockout. In this
mode, the front panel controls are disabled to prevent accidental setting change (refer to Sec. 7.2.7
parameters will automatically set the following:
*Output voltage to approximate 102% of
*Programmed Current to zero.

V terminals is reliable to avoid disconnection
during operation. Disconnection may cause damage to the power supply.
With local sensing it is important to minimize the wire length and resistance. Also the positive and
negative wire resistance should be
close as possible to each other to achieve current balance b
*OVP to its maximum value
c) The Master and Slave modes are stored in the power su
ply EEPROM when the AC power is turne
tem will return to the Master/Slave mode upon re
. CURRENT display accuracy
In the advanced parallel mode, the Master unit calculates the total current by multiplying the Master ou
current by the number of Slave
units. In this method, the CURRENT display accuracy is 2% +/
cases that higher accuracy is required, it is recommended to use the basic parallel oper
To release units from Slave mode
Slave units can be released using the followin
a) Depress FINE button for 3 seconds. The Master/Slave configuration will be displayed on the
b) Select H1 mode using the CURRENT encoder.
c) Depress FINE button again or wait 5 seconds.
d) Turn the AC power Off to store the n
e) After exiting from Slave operation the unit’s parameters will be set to:
*Programmed Voltage to zero
*Programmed Current to zero
*OVP to its maximum value
Fig.5-4: Parallel connection with local sensing

Fig.5-6: Daisy-chain connection
Fig.5-5: Parallel operation with Remote sensing
It is possible to configure a multiple power supply system to shut down all the units when a fault cond
tion occurs in one of the units. When the fault is removed, the syst
em recovers according to its setting
Setup switch SW1, position 5 should be set to its DOWN position to enable the Daisy
tions can be set according to the application requirements.
lt occurs in one of the units, its PS_OK signal will be set to a low level and the display will ind
cate the fault. The other units will shut off and their display will indicate “SO”. When the fault condition
is removed, the units will recover to their las
t setting according to their Safe
6 shows connection of three units, however the same connection method applies to systems
with a larger number of units.
The front panel controls can b
e locked to protect from accidental power supply parameter change.
Press and hold the PREV button to toggle b
tween “Locked front panel’ and “Unlocked front panel”.
The display will cycle between “LFP” and “UFP”. R
leasing the PREV button while one of the
5.17.1 Unlocked front panel
In this mode, the front panel controls are Enabled to program and monitor the power supply param
5.17.2 Locked front panel
In this mode the following front panel controls are Disabled
:-VOLTAGE and CURRENT encoders.
The power supply will not respond to attempts to use these controls. The VOLT display will show
cate that the front panel is locked.
OVP/ UVL button is active to preview the OVP
Use the PREV button to preview the Output Vol
age and Current setting or to unlock the front panel.

22) terminals are connected AND IPGM_RTN
(J1-23) terminal of J1 is referenced internally to the
not connect these terminals to any potential other than
CHAPTER 6 REMOTE ANALOG PROGRAMMING
The rear panel connector J1 allows the user to program the power supply Output Voltag
with an analog device. J1 also provides monitoring signals for Output Voltage and Output Current.
gramming range and monitoring signals range can be selected between 0
the setup switch SW1. When the power supply is
in Remote Analog programming, the serial comm
tive and can be used to read the power supply parameters.
2, Item 5) accepts TTL signal or Open
Short contact (referenced to J1
select between Local or Remote Analog programming of the Output Voltage and Current.
In Local mode, the Output Voltage and Output Current can be programmed via the front panel
VOLTAGE and CURRENT encoders or via the RS232/RS485 port. In Remote Analo
put Voltage and current can be programmed by analog voltage or by programming resistors via J1
contacts 9 and 10 (refer to Sections 6.4 and 6.5). Refer to Table 6
1 for Local/Remote Analog control
tion and Setup switch SW1
1: Local/Remote Analog control function
6.3 LOCAL/REMOTE ANALOG INDICATION
2, Item 5) is an open collector output that indicates if the power supply is in
Local mode or in Remote Analog mode. To use this output, connect a pull
source of 30Vdc maximum. Choose the pull
sink current will be less than 5mA
when the output is in a low state. Refer to table 6
2: Local/Remote Analog indication

To maintain the power supply isolation and to prevent ground loops, use an
isolated programming source when operating the power supply via remote
analog programming at the J1 connector.
REMOTE VOLTAGE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT
Perform the following procedure to set the power supply to Remote Voltage programming:
Turn the power supply AC On/Off
1 to its UP position for output voltage external programming and
2 to its UP position for output current.
Set SW1, position 3 to select the programming voltage range according to Table 6
Ensure that SW1, positions
7 and 8 are at their DOWN (default) position.
Connect a wire jumper between J1
4).6.Connect the programming source to the mating plug of J1 as shown in Fig.6
correct polarity for the voltage source.
ing sources to the desired levels and turn the power supply ON. Adjust
the programming sources to change the power supply output.
SW1, positions, 4, 5, 6 and 9 are not required for remote programming. Their settings can
be determined according the
The control circuits allow the user to set the Output Voltage and Output Current up to 5%
rated maximum value. The power supply will operate within the extended
range, however it is not recommended to operate the power supply ov
ing, and performance is not guaranteed.
3 setting and programming range
J1 connector, rear panel view
Fig.6-1: Remote voltage programming connection

J1 connector, rear panel view
Fig.6-2: Remote resistive programming
RESISITIVE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMIT
For resistive programming, internal current sources, for Output Voltage and/or Output Current control,
supply 1mA current through external programming resistors connected between J1
-10& 23. The voltage across the programming resistors is used as a programming voltage for the power
10Kohm can be selected to program the
urrent from zero to full scale.
control the output over its entire range, or a combination of variable r
tors can control the output over restricted portion of its range.
Perform the following procedure to set the power supply to Resistive programming:
1.Turn the AC On/Off switch to Off.
1 to its UP position for output voltage external programming and SW1
its UP position for Output Current limit external programming.
Set SW1, position 3 to select the programming resistor range acco
7 to its UP position for output voltage resistive programming and SW1
tion for Output Current limit resistive programming.
Connect a short between J1
ing resistors to the mating plug of J1 as shown in Fig.6
Set the programming resistors to the desired resistance and turn the power supply ON. Adjust the
resistors to change the power supply output.
SW1, positions 4, 5, 6 and 9 are not required
for remote programming. Their settings can be d
termined according to the application requirements.
The control circuits allow the user to set the Output Voltage and Output Current up to 5% over the
rated maximum value. The power supply will operate
within the extended range, ho
is not recommended to operate the power supply over its voltage and current rating and perfor
To maintain the temperature stability specification of the power supply, the resistors used for pr
o-gramming should be stable and low noise resistors, with temperature coefficient of less than
When resistive programming is used, front panel and computer control (via serial communication
port) of Output Voltage and Current are disabled.
-9)Output Current programming
3 setting and programming range

6.6 REMOTE MONITORING OF OUTPUT VOLTAGE AND CURRENT
, located on the rear panel provides analog signals for monitoring the Output Vol
age and Output Current. Selection of the voltage range between 0
4. The monitoring signals represent 0 to 100% of the power supply Out
Output Current. The monitor ou
puts have 500 ohm series output resistance. Ensure that the sensing
circuit has an input resistance of greater than 500 Kohm or accuracy will be r
5 for the required J1 connection, SW1
4 setting and monitoring voltage range.
5 Monitoring signals setting
1. Radiated emissions, FCC requir
FCC requirements for radiated emissions; use shielded
cable for the analog control signals. If using unshielded
cable, attach an EMI ferrite suppressor to the cab
close as possible to the power supply.
2. Front panel encoders operation:
In Remote analog mode, the output voltage and current
can’t be set by the VOLTAGE and CURRENT encoders.
3. Front panel PREV button:
Use the PREV button to display the Output
Current setting defined by the encoders or communic
In Remote analog mode, all power supply parameters
can be programmed and readback via the communication
cept the Output Voltage and Current setting.

CHAPTER 7 RS232 & RS485 REMOTE CONTROL
This Chapter describes the operation of the Genesys
00W power supplies via the serial comm
nication port. Details of the initial set
up, operation via RS232 or RS485, the command set and t
communication protocol are described in this Chapter.
The power supply is shipped with the following settings:
The power supply address can be set to any address between 0 and 30. Follow the instructions d
scribed below to set the uni
If the unit is in Remote mode (front panel REM/LOC LED illuminated), press the REM/LOC bu
to put the unit into Local mode.
Press and hold for the REM/LOC button for approximately 3 sec. The VOLTAGE display will ind
ng the VOLTAGE adjust encoder, select the unit address.
To preview the power supply address at any time, press and hold the REM/LOC button for approx. 3
sec. The VOLTAGE display will indicate the power supply address.
tween RS232 or RS485 set the rear panel setup switch SW1
Five optional Baud rates are possible: 1200, 2400, 4800, 9600 and 19200. To select the desired rate,
If the unit is in Remote mode (front panel REM/LOC LED illuminates), press REM/LOC button to
put the unit into Local mode.
Press and hold the REM/LOC button for approximately 3 sec. The CURRENT display will show
NT adjust encoder, select the desired Baud Rate.
Setting the unit into Remote or Local mode
The unit will be put into Remote mode only via serial communication command. Commands that
will put the unit into Remote mode are:

Tx and Rx are used for RS232 communication. Txd +/
communication. Refer to RS
485 cabling and connection d
There are two Remote modes:
In this mode, return to local can be made by the front panel REM/LOC or via
serial port command RMT 0. Set the unit into Remo
2. Local Lockout: In this mode the unit can be returned to Remote mode via the serial port RMT 1
command or by turning off the AC power until the display turns off, and then turn
again. In local Lockout mode, the front panel REM/LOC button is not a
tive. Set the unit into Local Lockout mode via serial port RMT 2 co
RS232/RS485 port in Local mode
When the power supply is in Local mode, it can receive queries or commands. If
the power supply will reply and remain in Local mode. If a command that affects the output is r
ceived, the power supply will perform the command and change to Remote mode.
Serial commands may be sent to set the status registers and re
ad them while the unit is in Local
mode. If the Enable registers are set (refer to Section 7.11) the power supply will transmit SRQ’s
Front panel in Remote mode
Front panel control in Remote mode is Disabled except for:
the Voltage and Current setting.
OVP/UVL: use to preview the OVP/UVL setting.
LOC/REM: use to set the unit into Local mode.
In Local Lockout mode, only the PREV and OVP/UVL pushbuttons are active.
7.3 REAR PANEL RS232/RS485 CONNECTOR
erface is accessible through the rear panel RS232/RS485 IN and RS485 OUT
connectors. The connectors are 8 contact RJ
45. The IN and OUT connectors are used to connect
power supplies in a RS232 or RS485 chain to a controller. Refer to Fig. 7
Fig.7-1: Rear panel J3 IN/OUT connectors pinout

MD MODE OPTION (Factory Installed)
The GEN supply is capable of operating in a multi drop environment
serial communications on a single serial bus. A maximum of 31 GEN suppli
es can operate in this si
gle bus. Upon power up the Gen will enter the point
point mode in which it is assumed that only 1
supply will operate on a serial bus. MD Mode must be enabled
Ref. Section 7.10.2.2. The user must
set all Slave supplies to a u
nique address. No two supplies may have the same address.
Refer to section 7.10.2.2. MD Mode is entered into via a Single byte command. In MD Mode the Ma
ter supply shall operate in one of the two serial mo
des, RS232 or RS485, depending upon the rear
panel DIP switch setting and the Slave supplies shall operate in the RS485 s
In MD Mode the SRQ generated by the supply is replaced by a single byte SRQ sent two times in s
The SRQ byte, in binary, will contain the address of the supply in the least significant 5 bits
with bits 5 and 6 set to logic zero and bit 7 set to logic 1. Ref. Table 7
In MD Mode it is possible to have one supply issue
an SRQ while another supply is transmitting
data/response to a command. When this happens, the HOST PC will receive garbled data and a
sume that the data/response was corrupted and thus re
be lost. The method of re
covery will be SRQ retransmission, Ref. Section 7.4.5, or polling all a
supplies to see who issued the SRQ
available by reading the SEVE? Register.
MD Mode SRQ Retransmission
The supply can be commanded to retransmit the SRQ at regular inte
vals until it is answered to by the
HOST PC (Ref. Section 7.10.2.4). The retransmission interval is 10 ms plus the supply address mult

CONNECTING POWER SUPPLIES TO RS232 OR RS485 BUS
t the desired interface RS232 or RS485 using rear panel setup switch SW1
2. Connect rear panel IN connector to the controller RS232 or RS485 port using a suitable shielded
4 for available RS232 and RS485 cables.
Fig.7-2: RS232 cable with DB25 connector (P/N: GEN/232-25)
Fig.7-3: RS232 cable with DB9 connector (P/N: GEN/232-9)
Fig.7-4: RS485 cable with DB9 connector (P/N: GEN/485-9)

The address (ADR n) command must return an “OK
any other commands are accepted.
nection to RS232 or RS485 bus
Up to 31 units can be connected (daisy chained) to the RS232 or RS485 bus. The first unit connects
RS485 and the other units are connected via the RS485 bus.
1. First unit connection: Refer to Section 7.5.1 for connecting the first unit to the controller.
2. Other units connection: The other units on the bus are connected via their RS485 interface.
5 for typical connection.
Set rear panel setup switch SW1
Using the Linking cable supplied with each unit (refer to Fig. 7
6), connect each unit OUT
tor to the next unit IN connect
7.6COMMUNICATION INTERFACE PROTOCOL
Serial data format is 8 bit, one start bit and one stop bit. No par
The Address is sent separately from the command. It is recommended to add 100msec delay b
n query or sent command to next unit addressing. Refer to Section 7.8.3 for details.
The end of message is the Carriage Return character (ASCII 13). The power supply ignores the Line
Feed (ASCII 10) character.
” will cause the last command to be repeated.
The user may add a checksum (optional) to the end of the command. The checksum is “$” followed
by two hex characters. If a command or a query has a checksum, the response
There is no CR between the command string and the “$” sign.
The power supply acknowledges received commands by returning an “OK” message. If an error is
upply will return an error message. The rules of checksum also apply to the a
Fig7-5: Multiple power supply RS232/485 connection
Serial link cable with RJ-45 shielded connectors (P/N: GEN/RJ-45)

If an error is detected in command or query, the power supply will respond with an error message.
Refer to Section 7.7 for details.
The backspace character (ASCII 8) clears the last character sent to the power supply.
The power supply will return error messages for illegal commands and illegal programming param
1 for programming error mess
1: Programming error messages
Returned when program voltage (PV) is programmed above acceptable range.
Example: PV above ‘105% of supply rating’ or PV above 95% of OVP setti
Returned when programming output voltage below UVL setting.
Returned when OVP is programmed below acceptable range.
Example: OVP less than 5% of supply voltage rating’ plus ‘voltage setting’.
Returned when UVL is programmed above the pr
Returned when programming the Output to ON during a fault shut down.
2: Commands error messages
7.8COMMAND SET DESCRIPTION
Any command or argument may be in capital letters or small letters.
In commands with an argument, a space must be between the command and the arg
For any command that sets a nu
meric value, the value may be up to 12 characters long.
Carriage Return: If the CR character (ASCII 13) is received by itself, the power supply will r
5000W series command set is divided i
nto four categories as follows:

Initialization Control Commands
ADR is followed by address, which can be 0 to 30 and is used to access the
Clear status. Sets FEVE and SEVE registers to zero (refer to Section 7
Reset command. Brings the power supply to a safe and known state:
Output voltage: zero, Remote: non
Output current: zero, Auto
Output: Off, OVP: maximum,
The conditional registers (FLT and STAT) are updated, the other registers are
Sets the power supply to local or remote mode:
the power supply into Local mode.
RMT 1 or RMT REM, sets the unit into remote mode.
RMT 2 or RMT LLO, sets the unit into Local Lockout mode (latched r
Returns to the Remote mode setting:
The unit is in Local mode.
The unit is in Local Lockout (latched remote) mode.
Returns MD MODE OPTION Status. 1 indicates installed and 0 indicates not i
7\Repeat last command. If
<CR> is received, the power supply will repeat the
Returns the power supply model identification as an ASCII string:
Returns the software version as an ASCII string.
Returns the unit serial number. Up to 12
Returns date of last test. Date format: yyyy/mm/dd
Sets the output voltage value in Volts. The range of voltage value is described in
5. The maximum number of chara
cters is 12. See the following exa
for PV n format: PV 12, PV 012, PV 12.0, PV 012.00, etc…
Reads the output voltage setting. Returns the string “n” where “n” is the exact
string sent in the PV n command. When in Local mode, returns the PREVIEW
(front panel) settings in a 5 digit string.
Reads the actual output voltage. Returns a 5 digits string.
Example: 60V supply sends 01.150, 15.012, 50.000, etc…
Set the Output Current value in Amperes. The range of current value
scribed in Table 7.6. The maximum number of characters is 12. See the following
examples for PC n format: PC n format: PC 10, PC 10.0, PC 010.00, etc…
Reads the Output Current setting. Returns the string “n” where “n” is the exact
in the PC n command. When in Local mode, returns the PREVIEW
tings in a 5 digit string.
Reads the actual Output Current. Returns a 5 digit string.
Example: 200A supply sends 000.50, 110.12, 200.00, etc…

Display Voltage and Current data. Data will be returned as a string of ASCII
characters. A comma will separate the different fields. The fields, in order, are:
Measured Voltage, Programmed Voltage, Measured Current, Programmed Cu
Voltage Set Point and Under Voltage Set Point.
Example: 5.9999,6.0000,010.02,010.00,7.500,0.000
Set the low pass filter frequency of the A to D Converter for Voltage and Current
Measurement where nn = 18, 23 or 46.
D Converter filter frequency: 18,23 or 46 Hz.
Turns the output to ON or OFF. Recover from Safe
Returns the output On/Off status string.
Sets the Foldback protection to ON or OFF.
Arms the Foldback protection
Cancels the Foldback protection.
When the Foldback protection has been activated, OUT 1 command will release
arm it, while FLD 0 will cancel the protection.
Returns the Foldback protection status string:
Add (nn x 0.1) seconds to the Fold Back Delay. This delay is
standard delay. The range of nn is 0 to 255. The value is stored in eprom at AC
power down and recovered at AC power up.
Supply returns the value of the added Fold Back Delay.
Reset the added Fold Back Delay to zero.
Sets the OVP level. The OVP setting range is given in Table 7
characters after OVP is up to 12. The minimum setting level is approximately
105% of the Output Voltage setting, or the value in Table 7
aximum OVP setting level is shown in Table 5
program the OVP below this level will result in an execution error response
(“E04”). The OVP setting stays u
Returns the setting “n” where “n” is the exact string in the user’s
in Local mode, returns the last setting from the front panel in a 4 digit string.
Sets OVP level to the maximum level. Refer to Table 7
Sets Under Voltage Limit. Value of “n” may be equal to PV setting, but returns
if higher. Refer to Table 7
8 for UVL programming range.
Returns the setting “n” where “n” is the exact string in the user’s “UVL n”. When
in Local mode, returns the last setting from the front panel in a 4 digit string.
-restart mode to ON or OFF.
AST 1 (or AST ON): Auto restart On.
AST 0 (or AST OFF): Auto restart Off.
Saves present settings. The settings are the same as power
re erased when the supply power is switched Off and the new
“last settings” are saved.
Recalls last settings. Settings are from the last power

Returns the power supply operation mode. When the power
1) it will return “CV” or “CC”. When the power supply is OFF (OUT 0 or fault
Returns the Master/Slave setting. Master: n= 1, 2, 3, or 4 Slave: n=0
1. In Advanced parallel mode (refer to S
ec. 5.15.2), “n” is the total system current.
2. In Advanced parallel mode, “MC?” returns the Master unit current multiplied by the number of slave
All supplies, even if not the currently addressed su
the command. No response to the PC issuing the command will be returned to the PC. The PC iss
ing the command will be responsible to delay and any other communications until the command is
minimum is the suggested delay.
If the command contains an error, out of range values for example, no error report will be sent to the
Reset. Brings the power supply to a safe and known state:
Output voltage: 0V, output curr
ent: 0A, OUT: Off, Remote: RMT 1,
AST: Off OVP: Max, UVL: 0.
The conditional register (FLT and STAT) are updated. Other registers are
Latching faults (FB, OVP, SO) are cleared, OU
Sets the output voltage value in volts. The range of voltage values is shown in
5. ‘n’ may be up to 12 char plus dec. pt
Program the output current value in amperes. The range of current values is
6. ‘n’ may be up to 12 char plus dec. pt
Turns the output to ON or OFF:
“OUT 0/OFF” = turnoff, clears CV and CC bits in the Status Condition (STAT).
OUT ON will respond with “E07’ if the output cannot be turned on because of a
latching fault (OTP< AC, ENA, SO) shutdown.
Save present settings. Same settings as power
down last settings listed in E
Reference source not found. Except the address and Baud rate are not saved
Saves to the RAM. These settings are erased
switched off and the new ‘last settings’ are saved.
Recall last settings. Settings are from last power
down or from last ‘SAV’ or
‘GSAV’ command. Address and Baud rate are not recalled so comm

Single byte commands are commands in which all the necessary data for the supply to act upon is
contained in a single byte. Single byte commands will be executed immed
ately by the supply. If the
s data to be sent to the HOST PC or IEEE Board (see se
tions 7.10.4 and 7.10.3.1)
that response will be transmitted immediately with no delay due to any software overhead. With the
exception of the Disconnect from communications command, section 7.10.3.1,
sent by the HOST PC or IEEE Board 2 times in s
quence for verification. All
have the most significant
bit, D7, set to a logic 1. A CR, carriage r
turn, character is not included in a single byte command.
The RST command will not change any
setting made by a single byte command.
All Single Byte commands will be executed in 1 ms or less. This does not include any r
to the HOST/IEEE Board, which is dependent upon the response length and the serial transmission
Global commands without response
Disable MD Mode (MD MODE OPTION REQUIRED)
Disable is the default condition upon power up. The Hex value of the command is 0xA0. Send it two
times in sequence. All supplies, both the currently addressed suppl
will disable MD Mode as a result of this command.
Enable MD Mode (MD MODE OPTION REQUIRED)
Send to enable Multi Drop Mode. The Hex va
lue of the command is 0xA1. Send
quence. When this command is
sent, the supply will set SRQ retransmission to the disable state; if
you wish it to be enabled you must send the enable command. All supplies, both the currently a
dressed supply and all non
addressed supplies, will enable MD Mode as a result of this com
Disable SRQ retransmission (MD MODE OPTION REQUIRED)
Disable is the default condition upon power up. The Hex va
lue of the command is 0xA2. Send
times in sequence. If the supply sends an SRQ it will only sent it 1 time. All supplies,
rently addressed supply and all non
addressed supplies, will disable SRQ retransmission as a result
of this command. All status registers will retain their data when this command is sent.
Enable SRQ retransmission (MD MODE OPTION REQU
Enable retransmission of SRQs. This is only available when the Multi Drop Mode is enabled in the
supply. The Hex value of the command is 0xA3. Send it two times in s
quence. If the supply sends an
SRQ it will be repeated on a timely basis, 10 ms plus
20 ms times the supply address, until answered.
All supplies, both the currently addressed supply and all non
addressed supplies, will enable SRQ r
transmission as a result of this co
Enable FLT Bit in the SENA Register
e command is 0xA4. Send it two times in sequence.
Global commands with response
Disconnect from communications
Command the supply to end all data transmissions to the HOST PC/IEEE Board and cease its role as
the active addressed supply.
The HOST PC/IEEE Board will be required to re
command to reestablish communications with the supply. After r
ceiving the first command the supply
will respond with an OK<CR>. The Hex value of the co
mand is 0xBF. All supplies, both the cu

addressed supply and all non
addressed supplies, will respond to this command; but only the cu
dressed supply (if any) will respond with the ‘OK’.
Addressed commands with response
Send (0x80 + Address) (1 b
send 2 times sequentially). The supply will return the contents
of the Status Condition Register, the Status Enable Register, the Status Event Register (SEVE?), the
Fault Condition Register, the Fault Enable Register and the Fault Event Regist
er IFEVE/). All registers
will be represented in two Hex bytes. Following the register data, a single dollar sign, $, will be added
to signal the end of data and the start of a checksum. The checksum will be the sum of all register
nted in two Hex bytes. The transmission will end with the CR character. If r
petitive sending of SRQs was active and the supply was sending them, the supply will stop sen
repetitive SRQs but leave the function active. The contents of the registers will
not have to be the active addressed su
Note that this command will not execute if another command is being processed.
Print the total time the supply has operated under AC pow
er. Send 2 bytes in sequence, A6 Hex and
the address of the supply in binary. A 32 bit integer will be returned in 8 Hex bytes. The data will be
the number of minutes that power has been ‘ON’ in the supply in binary. A ‘$’ sign and 2 byte Hex
be appended to the data. There is no method provided to reset this number.
Send (0xC0 + Address) (1 byte binary
send 2 times sequentially). The supply will return the last
message sent. Note that the supply does not have to be t
This command will not execute if another command is being processed.
Note that Single byte commands do not load data into the supply’s data output buffer.
Thus this command will not cause the supply to retransmit data obtained f
Send (0xC0 + Address) (1 byte binary
send 2 times sequentially). The supply will return the last
message sent. Note that the supply does not have to be the active addressed su
This command will not execute if another command is being processed.
Note that Single byte commands do not load data into the supply’s data output buffer. Thus this
command will not cause the supply to retransmit data obtained from any previous Single Byte
Test if MD Mode is Installed
Send AA Hex followed by the address of the supply in binary. If not installed, the supply will return a
‘1’. If installed, the supply will return a ‘0’.
Addressed commands without response
Send (0xE0 + Address) (1 byte binary
send 2 times sequentially).
If Enable SRQ retransmission is active, it will remain active.
Re-enable SRQ with out reading/clearing the SEVE Register
A5 Hex followed by the address of the supply in binary and new SRQ’s generated by new
events in the Fault Event will be enabled without reading and clearing the Status Event Register. All
events previously recorded in the Fault Event Register must have be
en serviced by the user’s sof
ware prior to this command to take affect.

Set supplies out of MD Mode (d
Set supplies into MD Mode
Disable retransmission of SRQs by su
Enable retransmission of SRQs by supplies
Enable the FLT bit in the SENA Re
All supplies will halt transmission and enter
is the address of the supply in binary.
Re-enable SRQ without reading or clearing
the SEVE Register. xxxx xxxx is the a
dress of the supply in binary. Works only in
Read the time the supply is active under
AC Power. xxxx xxxx is the address of the
turns a 32 Bit integer as
8 Hex bytes. A ‘$’ sign is appended to the
followed by a 2 byte check
tal of 11 bytes are returned.
Retransmit last response from a command.
x xxxx is the address of the supply in b
SRQ is enabled, it will remain e
the next SRQ. X xxxx is the address of the
Returns a 0 if not installed or a 1 if i
checksum and Carriage Return is a
pended to the data. xxxx xxxx is the a
dress of the supply in binary.
SRQ from supply when in MD Mode. X xxxx
is the address of the supply in binary

5: Voltage programming range
The power supply can accept values higher 5%
than the table values, however it is not reco
mended to program the power supply beyond the
The power supply can accept values higher 5% than the table values, however it is not reco
program the power supply over the rated values.
e 7-7: OVP programming range
(V)810162030406080100150300600

8 for definition of the registers.
Reads the complete power supply status.
Returns ASCII characters representing the following data, separated by commas:
MV<actual (measured) voltage>
PC<programmed (set) current>
PV<programmed (set) voltage> SR<status register, 2
MC<actual (measured) current> FR<fault register, 2
Example response: MV(45.201),PV(45), MC(4.3257), PC(10), SR(30), F
Reads Fault Conditional Register. Returns 2
Set Fault Enable Register using 2
Reads Fault Enable Register. Returns 2
Reads Fault Event Register. Returns 2
digit hex. Clears bits of Fa
Reads Status Conditional Register. Returns 2
Sets Status Enable Register using 2
Reads Status Enable Register. Returns 2
Reads Status Event register. Returns 2
x. Clears bits of Status Event register.
7.11 STATUS, ERROR AND SRQ REGISTERS
7.11.1 General Description
This Section describes the various status error and SRQ registers structure. The registers can be
read or set via the RS232/RS485 commands. When usin
g the IEEE option, refer to the User’s Manual
Power Supply IEEE Programming Interface.
7 for the Status and Error Registers Diagram.

Query Response (”message”)
One response for everycommand
from all zeroes to any bit set.
Setting more SEVE bits does
Fig.7-7: Status and Error Registers Diagram
7.11.2 Conditional Registers
The fault Condition Register
and the Status Condition Register are read only registers that the user
may read to see the condition of the Power supply. Refer to Table 7
9 for description of the Fault
tion Register bits and Table 7
10 for the Status Condition register bits.

1.2 Conditional Registers (continued)
9: Fault Condition Register
The AC input returns to nor
The power supply cools down.
The supply output is turned On by front
panel button or OUT 1 command.
The supply output is turned ON by front
panel button or OUT 1 command.
Rear panel J1 “Shut Off” condition has
ly output is turned On by front
panel button or OUT 1 command.
Rear panel J1 Enable terminals closed.
10: Status Condition Register
Output is ON and the supply is not in
Output is ON and the supply is not in
One or more faults are active and fault
reporting is enabled (using “FENAxx”).
Front Panel or serial command).
Fold protection disabled (from Front
Panel or serial command).
Supply in Remote mode or Local

Enable and Event Registers
The conditional Registers are continuously monitored. When a change is detected in a register bit
which is enabled, the power supply will generate an SRQ message.
The SRQ message is: “Inn” terminated by CR, where the nn is the p
ower supply address. The SRQ
will be generated either in Local or Remote mode.
14 for details of the Enable and Event registers.
The Fault Enable Register is set to the enable faults SRQs.
where nn is hexadecimal (if
nn=”00”, no fault SRQs will
The Fault Event will set a bit if a condition occurs and it is Enabled. The register is
FEVE?, CLS or RST commands are received.
clear the Fault Event Regi
ter. (The Fault Event Regi
ter is not cleared by RST)

The Status Enable Register is set by the user to Enable SRQs for changes in power supply status.
13: Status Enable Register
If “nn”=00, no SRQ is sent
when there is a change in
Status Condition Register.
The Status Event Register will set a bit if a change in the power supply status occurs and it is e
er is cleared when the “SEVE?” or “CLS” commands are received. A change in this
register will generate SRQ.
14: Status Event Register

Use the following instructions as basic set
up to test the serial communication operation.
: PC with Windows Hyper Terminal, software installed, Genesys
Power supply, RS232 cable.
2.3 Connect to…………………………………
2.4 Configure port properties:
Properties in the program
Select Echo characters locally, select send line ends with line feed.
On some PC systems, pressing the number keypad “Enter” will distort
displayed messages. Use the alphabet
Connect the power supply to the PC using the RS232 cable.
Set via the front panel: Baud Rate: 9600, Address: 06 (default).
Set via the rear panel: RS232/RS485 to RS232 (refer to Section 4
Power supply response: “OK”
Power supply response: “OK”
Power supply response: “OK”
PC write: PCn (for values of n see Tables 7
-6)Power supply response: “OK”
The power supply should turn on and the display will indicate the actual Output Vol
and the actual Output Current.

CHAPTER 8 ISOLATED ANALOG PROGRAMMING OPTION
Isolated Analog Programming
is an internal Option Card for analog programming of the Genesys
power supply series. The option is factory installed and cannot be obtained with a GPIB (IEEE
Interface. Output Voltage and Output Current can be programmed and readback through optica
nals which are isolated from all other ground references in the power supply.
There are two types of Isolated Analog programming cards:
10V option (PN: IS510): Using 0
10V signals for programming and readback.
PN: IS420): Using current signals for programming and readback.
Output Voltage programming accuracy
Output Current programming accuracy
Output Voltage programming temper
Output Current programming temperature coefficient
Max. voltage between program inputs and supply outputs
Output Current monitoring accuracy
Output Impedance (see Note)
Max. voltage between monitoring outputs and supply ou
Use 100Kohm minimum input impedance for the monitoring circuit
s to minimize the readback error.
4-20mA option (PN: IS420)
Output Voltage programming accuracy
%+/-1Output Current programming accuracy
%+/-1Output Voltage programming temperature coefficient
amming temperature coefficient
Absolute maximum input current
Max. voltage between program inputs and supply outputs
Output Voltage monitoring accuracy
Max. voltage between monitoring outputs and supply ou

When the Isolated Analog Option is installed, do not apply any signals to the
non-isolated VPGM and IPGM (J1
10) pins. All other J1 features may
be used normally. Refer to Section 4.5 for a description of J1 features.
8.3 ISOLATED PROGRAMMING & MONITORING CONNECTOR
1 for detailed description of the rear panel Isolate
d Programming & Monitoring
connector. To provide the lowest noise performance, it is recommended to use shielded
1 for description of the Isolated Analog Programming & Monitoring connector.
1: Detailed description of Isolated programming & Monitoring connector
Shield, connected internally to
Output Voltage programming i
Output Current programming i
Ground for programming signals.
Ground for programming signals.
Output voltage monitoring output
Output current monitoring output
Shield, connected internally to
Fig.8-1: Isolated Programming & Monitoring connector

To prevent damage to the unit, do not program the output voltage
current to higher than the power supply rating.
12 must be shorted together with a wire jumper.
12 must be shorted together with a wire jumper.
SW1 position 3 and 4 must be in the Up position for operation
8.4.1 Setting up the power supply for 0
10V Isolated Programming and Monitoring
Perform the following procedure to configure the power supply:
Turn the power supply AC power switch to Off.
Connect a wire jumper between J1
4).3.Set the Setup switch SW1, positions 1 and 2 to the UP position.
Set SW1, position 3 to select the Programming Voltage Range: Down=0
Set SW1, position 4 to select the Monitoring Range: Down=0
SW1, positions 7 and 8 are in the Down position.
Connect the programming sources to the mating plug of the Isolated Programming connector.
Observe for correct polarity of the voltage source.
Set the programming sources to the desired levels and turn t
Setting up the power supply for 4
20mA Isolated Programming and Monitoring
Perform the following procedure to configure the power supply:
Turn the power supply AC power switch to Off.
Connect a wire jumper between J1
4).3.Set the Setup switch SW1, positions 1 and 2 to the Up position.
Set SW1, position 3 to the Up position.
Set SW1, position 4 to the Up position.
Ensure that SW1 positions 1 and 2 to their Up position.
Connect the programming source to the ma
ting plug of the Isolated Programming connector.
Observe for correct polarity of the voltage source.
Set the programming sources to the desired levels and turn the power supply ON.

ovides information about maintenance, calibration and troubleshooting.
Units requiring repair during the warranty period should be returned to a
authorized service facility. Refer to the addresses listing on
the back cover of this User’s Manual. U
formed by other than the authorized service facilities may void the warranty.
No routine maintenance of the power supply is required except for periodic cleaning. To cl
disconnect the unit from the AC supply and allow 30sec. For discharging internal voltages. The front
panel and the metal surfaces should be cleaned using a mild solution of detergent and water. The
solution should be applied onto a soft cloth, and not
directly to the surface of the unit. Do not use
aromatic hydocarbons or chlorinated solvents for cleaning. Use low pressure compressed air to blow
9.4 ADJUSTMENTS AND CALIBRATION
No internal adjustment or calibration is required. There
is NO REASON to open the power supply
9.5 PARTS REPLACEMENT AND REPAIRS
As repairs are made only by the manufacturer or by authorized service facilities, no parts replac
information is provided in the manual. In case of failure, unusual or err
atic operation of the unit, co
sales or service facility nearest you. Please refer to the
sales offices addresses lis
ing on the back cover of this User’s Manual.
ply appears to be operating improperly, use the Troubleshooting Guide (Table 9
determine whether the power supply, load or external control circuit are the cause.
Configure the power supply for basic front panel operation and perform the tests of Sec
termine if the problem is with the supply.
1 provides the basic checks that can be performed to diagnose problems, with references to
Sections of this User’s Manual for further information.
Check continuity, replace if
No output. All displays and
3.7Output is present momentarily
but shuts Off quickly. The
Output is present momentarily
but shuts off quickly.The
negative load wire is loose.

Output Voltage will not adjust.
Front panel CC LED is On.
Is the unit in constant current
setting and load current.
Output Voltage will not adjust
Front panel CV Led is On.
Check if output voltage is
adjusted above OVP setting
Set OVP or UVL so they will
Output Current will not adjust.
Front panel CV LED is on.
Is the unit in constant voltage
Large ripple present in output.
Is the voltage drop on the
wires connection for noise
No output. Display indicates
Setup switch SW1 setting.
installed adjacent to heat
Check Foldback setting and
Front panel CV LED is on.
Are sensing wires connected
according to User’s Manual
The front panel controls are
and wait until the display
turns off. Turn on the AC
There are no user replaceable fuses in the power supply. Internal fuses are sized for fault protection
and if a fuse was opened, it would indicate that service is required. Fuse replacement should be made
by qualified technical personnel. Refer to Table 9
2 for a listing of the fuses.