
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 precaution must be ob
served during all phases of operation, service and r
this equipment. Failure to comply with the safety pr
cautions or warnings in this document violates
safety standards of design, man
facture and intended use of this equipment and may impair the b
Lambda Americas Inc. shall not be liable for user’s failure to comply with these requirements.
power supply series has been evaluated to INSTALLATION CATEGORY II. Install
er voltage category) II: local level, appliances, portable equipment etc. With smaller tra
sient over voltage than Install
tion Category (over voltage category) III.
This product is a Safety Class 1 instrument. To minimize shock hazard, the instr
connected to an electrical ground. The instrument must be connected to the AC power supply mains
through a three conductor power cable, with the ground wire firmly connected to an electrical ground
(safety ground) at the power outlet.
For instruments designed to be hard
wired to the supply mains, the protective earth terminal must be
connected to the safety electrical ground before another connection is made. Any interruption of the
protective ground conductor or disconnection of the p
rotective earth terminal will cause a potential
shock hazard that might cause personal injury.
Fuses must be changed by authorized TDK
Lambda Americas Inc. service personnel only. For conti
ued protection against risk of fire, replace only with
the same type and rating of fuse.
Do not use 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 has three input ranges d
the model type ordered. Ranges are 180
safety reasons, the mains supply voltage flu
tuations should not exceed above voltage range.
Operating personnel must not remove the instrument cover. No in
ternal adjustment or component r
placement is allowed by non
Lambda Americas Inc. qualified personnel. Never replace comp
nents with power cable connected. To avoid injuries, always disconnect power, discharge circuits and
e before touching components.
PARTS SUBSTITUTIONS & MODIFICATIONS
Parts substitutions and modifications are allowed by authorized TDK
Lambda Americas Inc. service
personnel only. For repairs or modifications, the instrument must be returned to an authorize
Lambda Americas Inc. service f
There is a potential shock hazard at the RS232
485 and the IEEE ports when using power su
rated or combined voltage greater than 400V and the Positive Output of the Power Supply is grounded.
Do Not connect the Positive Outpu
t to ground when using the RS232/485 or IEEE.

power supply series safety approval applies to the following operating cond
*Ambient temperature: 0°C to 50°C
humidity: 80% (no condensation)
ATTENTION Observe Precautions for handling Electrostatic Sensitive Devices.
CAUTION Risk of Electrical Shock
Instruction manual symbol. The instrument will be marked wi
th this symbol when it is
necessary for the user to refer to the instruction manual.
Indicates hazardous voltage.
Indicates ground terminal.
Protective Ground Conductor Terminal must be connected to Earth Ground.
The WARNING sign denotes a hazard. An attention to a procedure is called.
lowing procedure correctly could result in personal injury.
A WARNING sign should not be skipped and all indicated conditions mus
fully understood and met.
The CAUTION sign denotes a hazard. An attention to a procedure is called. Not follo
ing procedure correctly could result in damage to the equipment. Do not proceed b
til all indicated conditions are fully understood and met.
Note: 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 pr
vide reasonable protection against harmful interference when the equipment is ope
ated in a commercial environment. This equipment generates uses, and can radiate
radio frequency energy and, if not installed and used in acco
dance with the instruction
ual, may cause harmful interference to radio communications. Oper
equipment in 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.

................................
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......81.4 MODEL NUMBER FORMAT
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3.5 LOCATON, MOUNTING AND COOLING
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3.6 AC SOURCE REQUIREMENTS
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3.7 AC INPUT POWER CONNECTION
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3.10 LOCAL AND REMOTE SENSING
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...254.2 FRONT PANEL CONTROLS AND INDICATORS
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4.3 REAR PANEL CONTROLS AND INDICATORS
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REAR PANEL SW1 SETUP SWITCH
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..294.5 REAR PANEL J1 PROGRAMMING AND MONITORING CONNECTOR
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...335.2 STANDARD OPERATION
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5.3 OVER VOLTAGE PROTECTION (OVP)
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5.4 UNDER VOLTAGE LIMIT (UVL)
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5.6 OUTPUT ON/OFF CONTROL
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OFF (SO) CONTROL VIA REAR PANEL J1 CONNECTOR
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.....355.8 ENABLE/DISABLE CONTROL VIA REAR PANEL J1 CONNECTOR
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...365.11 SAFE START AND AUTO
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5.12 OVER TEMPERATURE PROTECTON (OTP)
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5.17 ADVANCED PARALLEL OPERATION
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6.3 LOCAL/REMOTE ANALOG INDICATION
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6.4 REMOTE VOLTAGE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMI
6.5 RESISTIVE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMIT
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.476.6 REMOTE MONITORING OF OUTPUT VOLTAGE AND CURRENT
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7.3 REAR PANEL RS232/485 CONNECTOR
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7.4 CONNECTING POWER SUPPLIES TO RS232 BUS
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7.5 COMMUNICATION INTERFACE PROTOCOL
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7.8 GLOBAL OUTPUT COMMANDS
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7.10 STATUS, ERROR AND SRQ REGISTERS
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7.11 SERIAL COMMUNICATION TEST SET
-UP................................
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PROGRAMMING & MONITORING CONNECTOR
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8.4 SETUP AND OPERATING INSTRUCTIONS
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...709.2 UNITS UNDER WARRANTY
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9.4 ADJUSTMENTS AND CALIBRATION
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..709.5 PARTS REPLACEMENT AND REPAIRS
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CHAPTER 1 GENERAL INFORMATION
This User’s Manual contains the operating instructions, installation instructions and specifications of the
15KW and 10KW power supply series. The instructions refer to the standard power su
plies, including the built
serial communication. For information related to o
the optional IEEE programming, refer to User’s Manual for Power Supply IEEE/IEMD Programming
Interface. For information related to operation with the optional LAN programming, refer to the U
Manual for Power Supply LAN Programming Interface.
power supplies are wide output range, high performance switching power supplies. The
series is power factor corrected and operates from specif
ied AC voltage range contin
ously. Output voltage and current are continuously displayed and LED indicators show the complete
operating status of the power supply. The Front panel controls allow the user to set the output param
ters, the protections levels
Voltage protection, Under
Voltage limit and Foldback) and preview
tings. The rear panel includes the necessary connectors to control and monitor the power supply
operation by remote analog signals or by the built
in serial communication (RS23
Analog programming/monitoring are optional
Constant Voltage / Constant Current with automatic crossover.
Embedded Microprocessor Controller.
resolution adjustment by digital encoders.
High accuracy programming/readback.
Independent Remote ON/OFF (opto
isolated) and remote Enable/Disable.
Remote sensing to compensate for voltage drop of power leads.
ing and Monitoring standard (0
no ventilation required at the top and bottom surface of the power supply.
Optional GPIB interface (SCPI compatible).
Optional Isolated Analog programming/monitoring (0

Control via the serial communication port
The following parameters can be programmed via the serial communication port:
Output voltage measurement.
Output current measurement.
Foldback protection setting
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 control of the power supply. The
output voltage and the current limit can be programmed by analog voltage or by resistor, and can be
tored by analog voltage. The power supply output ca
n 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 master
e configuration with automatic current sharing to i
Output connections are made to rear panel via bus
bars up to 300V. For greater than 300V
terminals. Either the positive or negative terminal may be gro
unded or the output may be floated. Co
tance with higher float voltage applications. 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
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 pan
Observe all torque guidelines within this manual. Over torqueing may da
unit or accessories. Such damage is not covered under manufacturer’s wa

1.3.1 Included Accessories
The following accessories are
delivered with the power supply.
Serial linking cable linking power supplies by RS
485 communication.(GEN/RJ45).
Cable description: 0.5m Length, shielded, RJ
45 type plugs, eight (8) contacts (P/N 15
Strain Relief for AC Cord
DB25 Programming Plug kit (AMP 749809
RS-232 Cables to connect GEN to Serial Port on PC
RS-485 Cable to connect GEN to Serial Port on PC

WARNING IEEE 488/RS232 OPTION
There is a potential shock hazard at the RS232
power supplies 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 RS232/485 or IEEE.
The model numbering system for Genesys
power supply includes symbols for features and o
tions. They are separated by dashes
The following chart explains the model number for the GEN Power Supply Family.
* Factory Installed. Limit one (1) per Power Supply.
See Specifications for Input Range.
CE Mark with IEMD to 400VDC Output, without IEMD to 600VDC
IS510, IS420, IEMD, or LAN may not be installed together.

All specifications are subject to change without notice.
Contact factory for specific model availability.
1.1 STANDARD MODELS - 10kW
7.51012.520253040506080100
1.1 STANDARD MODELS - 15kW
7.51012.520253040506080100
1. Input voltage/freq.(range)
3 Phase (Wye or Delta) 4 wire total (3 Phase and 1 protective earth ground)
4. Input current 180/360/432Vac
All at full rated output power.
6. Efficiency at Low Line,100% load
11. Input Overvoltage Protection
3. STATIC CHARACTERISTICS
7.51012.520253040506080100
1. Max. line regulation c.v
2. Max. line regulation c.c
3. Max load regulation c.v
4. Max load regulation c.c
+/-0.05% of Full Scale Over 8 hours, after 30 minute warm up, constant Line, Load & Temperature
+/-0.05% of Full Scale Over 8 hours, after 30 minute warm up, constant Line, Load & Temperature
200 (0.02% Full Scale)/Degree C
300( 0.03% Full Scale)/ Degree C
9. Output noise p-p(20MHz) c.v
10. Ripple r.m.s 5Hz~1MHz c.v
mV2020202020202020202525252535356060606011. Ripple r.m.s 5Hz~1MHz c.c (10kW)
1008067504032202016131087
12. Ripple r.m.s. 5Hz~1MHz c.c (15kW)
13. Rem. sense compensation/wire
V111111.523345555555554.PROTECTIVE FUNCTIONS
7.51012.520253040506080100
None. No damage at knee point operation
4. Short circuit protection
7. Foldback response time
9. OVP programming accuracy
10. OVP adjustment method
14. Output under voltage limit
Preset by front panel or communication port. Prevents from adjusting Vout below limit.
Raises the Output good signal in case of output voltage is below limit.
15. Input under voltage protection
Yes. Power supply shut down below low line.
16. Over temp. protection
17. Phase Loss Protection
208VAC (180-253); 400VAC (360-440); 480VAC (432-528), all 47-63Hz.
0.1% of FS from Io min. to Io max
0.01% of FS from lo min. to lo max
0.05% of FS from lo min. to lo max
Unit shall not be damaged by line overvoltage with max. duration of 100uSec. Up to 120% of nominal AC input voltage.
Less than 10mS for Output to begin to drop.
0.1% of FS from Io min. to Io max
0.1% of FS from Vo min. to Vo max
0.1% of FS from Vo min. to Vo max
0.02% of FS lo min. to lo max
0.75% of FS from Vo min. to Vo max
77min for 7.5KW, 83 min for 10kW; 88 min for 15kW
Not to exceed full rated Input current See Para. 2.4
*Ripple and Noise at Full Rated Voltage & Load at 25C, Nominal Line. For models not listed use the ripple limit of the next higher voltage model. Per EIJ RC9002A
208 Circuit Breaker, 400/480 - Line Fuse
1. OUTPUT RATING (Duty Cycle Continuous Duty).
Inverter shut-down, manual reset by On/Off recycle or by OUT button
Adjust by front panel Voltage encoder and comm port.
0.05 to (1.02-1.05) x Rated Output Voltage
Unit shall shut down when internal temperature exceeds safe operating levels. (Latched in Safe mode and
= < 5% on Three Phase Input
Output shut down , manual reset by front panel OUT button.

5. DYNAMIC CHARACTERISTICS
7.51012.520253040506080100
1. Up-prog. response time, 0~Vomax full-
2. Down-prog response time full-load
3. Transient response time (cv mode)
Less than 7 (without IEEE option)
6. REMOTE ANALOG CONTROL AND SIGNALS
1. Vout voltage programming
0~100%, 0~5V or 0~10V, user selectable. Accuracy & Linearity +/-1% of Rated Vo.
2. Iout voltage programming
0~100%, 0~5V or 0~10V, user selectable. Accuracy & Linearity +/-1% of Rated Io.
3. Vout resistor programming
0~100%, 0~5/10kohm full scale, user selectable. Accuracy & Linearity +/-1% of Rated Vo.
4. Iout resistor programming
0~100%, 0~5/10kohm full scale, user selectable. Accuracy & Linearity +/-1% of Rated Io.
5. On/Off control (rear panel)
6. Output current monitor
0~5V or 0~10V , accuracy:1% , user selectable
7. Output voltage monitor
0~5V or 0~10V , accuracy:1% , user selectable
8. Power supply OK signal
Yes. TTL high-OK, 0V (500ohm impedance)-Fail
available on digital interface and displayed on front panel of Master unit.
Possible (with external diodes) , up to identical 2 units with total output not to exceed +/-600V from chassis ground.
CV: TTL high (4~5V) source: 10mA, CC: TTL low (0~04V):10mA
13. Remote/Local selection
Signals operating mode in use.
Vout/ Iout manual adjust by separate encoders
OVP/UVL manual adjust by Volt. Adjust encoder
Foldback control (CV to CC)
RS232/485 and IEEE488.2 selection by IEEE or LAN enable switch and DIP switch
Re-start modes (auto , safe)
4 digits , accuracy: 0.5% of rated Vout+/-1count , Green LED's , Size:10mm
4 digits , accuracy: 0.5% of rated Iout+/-1count , Green LED's , Size:10mm
CC/CV : GREEN LED's. ALRM (OVP,OTP,FOLD,AC FAIL): RED LED
Properties 5.1-5.6 with Resistive Load.
2 maximum from enable output until output stable.
rated output set-point: less than 3.
Address selection by Voltage adjust encoder. No of addresses:31
Overshoot limited to 125% Rated Output. Voltage at No-Load, Full-Load, Resistive load.
H3 = One Master, Two Slaves H4 = One Master, Three Slaves,
Up to Four (4) identical units may be connected in Master/Slave Mode with 'Single' wire connection.
In Advanced parallel feature, the current of Master Unit, multiplied by number of units connected in parallel, is made
Remote analog current monitor of the Master is scaled to output current of the Master unit (only).
Dry contact. Open:off , Short: on. Max. voltage at Enable/Disable Contacts 6V
Selects Remote or Local operation by elect. Voltage: 0~0.6V/2~15V, <0.6V = Local 2-15V = Remote
Voltmeter is user selectable to read either local voltage (at power supply) or remote voltage (at the load).
Baud rate selection by Current adjust encoder.
Parallel Master Slave: H1 = One Master, Zero Slave, H2 One Master, One Slave
ADDR., OVP/UVL , V/A , FOLD, REM./LOCAL, OUT ON/OFF, LFP/UFP, IEEE, LAN, Hx (Parallel Master) or S (Slave).
Time for the output voltage to recover within 2% of its rated output voltage for a load change of 50~100% or 100~50% of
By Voltage: 0.6V = Disable, 2-15V = enable (default) or dry contact, user selectable logic

1. Voltage/current setting
3. Actual voltage/current readback
4. Voltage/current setting readback
5. OVP/UVL setting readback
7. Foldback protection setting
8. Status readback (cc/cv , ovp, otp , foldback, ac fault)
9. Model identification readback
11. Calibration (not user access.)
(DAC-Zero and max points , Display-Zero and max)
12. Last setting recall (at power off).
13. Re-start mode setting
14. Front Panel Lock/Unlock
1.Drivers to LabView and LabWindows
2. Simple operating program
9. DIGITAL PROGRAMMING AND READBACK
1. Vout programmingaccuracy
2. Iout programing accuracy
3. Vout programmingresolution
0.02% of full scale (To be confirmed)
4. Iout programming resolution
0.04% of full scale (To be confirmed)
5. Vout readback accuracy
6. Iout readback accuracy
7. Vout readback resolution
8. Iout readback resolution
10. MECHANICAL CONSTRUCTION
7.51012.520253040506080100
5.Front panel material & finish
Sandard 19" Rack Mount, provision for standardslides. Side/Rear Support is required; do not mount by F/P only.
8. Output groundconnection
10. Output Terminal covers
11. ENVIRONMENTAL CONDITIONS
0~50 C, 100% load.No operation > 50C
7. Vibration & Shock (208/400VAC)
Non Operating 40,000 ft (12,000m)
2) Output: Iout =>50A: bus-bars, Iout<37.5 a threadedstud terminal.
6) IEMD Option, refer to IEMD Option Spec 08-030-100.
4) RS232/RS485, STD Phone Jack connector.
Standard for all models with bus-bars. Closed connection for models with output connector.
5) Isolated analog option: refer to Isolated Analog option spec. 08-030-200
connector 747321. Standard 25 pin D connector.
Chassis Top/Sides/Bottom Yellow iridite. Front Panel RAL 7035 painted.
ASTM D4169, Standard Practice for Performance Testing of Shipping Containers and Systems, Shipping Unit: Single Package
Assurance Level: Level II; Acceptance Criteria: Criterion 1 - No product damage Criterion 2 - Package is intact Distribution Cycle: Cy
Air (intercity) and motor freight (local, single package up to 100 lbs.) (Note: for packages over100 lbs, distribution cycle 12 - Air
(intercity) and motor freight (local), unitized is used)
+/-0.5% of rated output current for units with Io
187.5 +/-0.7% of rated output current for Io <187.5
0.1%+0.4% of rated output current Accuracy same as IEEE Programming Accuracy
Fan driven, Airflow from Front to Rear. Supplemental vents on side that shall not be blocked. EIA Rack mounting,
0.1%+0.2% of rated output voltage Accuracy same as IEEE Programming Accuracy
+/-0.5% of rated output voltage
stackable. "Zero Stackable" top and bottom. Slides or suitable rear support required.
20 mS maximum between output V exceeding IEEE limit and supply inhibit turning on.
65dBA at Full Load, measured 1m from Front Panel
Set Over-VoltageLimit, Set Local/Remote
Operating parameters and status available for display via host computer.
H:3U ,W: 19" Rack, See 02-530-000 for outline drawing.
1) Input: Threaded Studs and terminal cover. Strain relief optional.
3) Analog programming: DB25, plastic connector, AMP, 747461-5, Female on Power Supply, Male on Mating

1. 208 Volts Input Models
6. Power Frequency Magnetic Field
2. 400 Volts Input Models
6. Power Frequency Magnetic Field
7. Voltage Dips, Short Interruptions and
Voltage Variations Immunity Tests
EN61000-4-5 (IEC 1000-4-5)
EN61000-4-6 (IEC 1000-4-6)
EN61000-4-2 (IEC 801-2) Air-disch.+/-8kV , contact disch.+/-4kV
EN61000-4-4 (IEC 1000-4-3)
EN61000-4-3 (IEC 1000-4-3)
EN61000-4-2 (IEC 801-2) Air-disch.+/-8kV , contact disch.+/-4kV
EN61000-4-4 (IEC 1000-4-3)
EN61000-4-5 (IEC 1000-4-5)
EN61000-4-6 (IEC 1000-4-6)
EN61000-4-3 (IEC 1000-4-3)
1. Electrolytic capacitors life
More than 3yrs at 40C ambient , 100% load
Ena ble/Disable D ry Contact with J1-14
Isolated Interface Common . Re turn fo r SO, PS_OK
Isolated Interface Common . Re turn fo r SO, PS_OK
Input for selecting between Local o r Remote analog prog ramming
Input for remote an alog voltage/resistan ce program ming of the Output Voltag e
Input for remote an alog voltage/resistan ce program ming of the Output Current
Contr ol Common for VMON & IMON
Output for Constant Voltage/ C onstant Current mode indication
Ena ble/Disable D ry Contact with J1-1
Input for Shut-Off control of the output.
Output for indication of the power supply status
Output for indicating if the unit is in Local or Remote a na log programming mode.
Retur n for VPGM J1-9; c on nected to Neg Output
Retur n for IPGM J1-1 0; connected to Neg Output
Output for Current Monitor
J1-25POutput for Current Bala nce in Parallel Operation (O ne wire - Re ference to Ne gative Output)
G-2 , Lambda Grou p de rating criteria & EIAJ RCR-9102A
count Re liabililty, G eneric FaIlure rates , 25C
UL/ULC 60950-1, EN6 0950-1 recognized . All Outputs are Haza rd ous. (Units with IEMD or ISOL option are Recognized up
to 4 00 volts output). CE Mark 208 & 400VAC input only (CB Schem e).
5 years , electrolytic caps shall be refo rm ed after 2 years

This Chapter contains instructions for initial inspection, preparation for use and repackaging for shi
. 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
hould 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 or multiple loads.
er supply setting at shipment.
Prior to shipment this power supply was inspected and found free of mechanical or electrical defects.
ing of the power supply, i
nspect for any damage, which may have occurred in transit.
The inspection should confirm that there is no exterior damage to the power supply such as broken
tors 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
rier immediately and notify the TDK
Lambda Americas Inc. sales or authorized service facility nearest
series is designed to fit in a standard 19” equipment rack.
3.4.1 To install the Power Supply in a rack:
mount brackets to install the power supply in the rack.
power supplies generate magnetic fields, which
might affect the operation of other instruments. If your equi
ment is susceptible to magnetic fields, do not position it adj
cent to the power supply.

Some components inside the power supply are at AC/DC
voltage even when the On/Off switch is in
To avoid electric shock hazard, disconnect the line and load
and wait 15 minutes before removing cover.
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 stud terminals.
2. Use a support bar to provide adequate support for the rear of the
power supply. Do not obstruct the
air exhaust at the rear panel of the unit.
3.5 LOCATON, 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.
to reach the front panel ventilation inlets. Unrestricted air space at
the front and the rear of the unit is necessary for proper cooling of power supply.
3.6 AC SOURCE REQUIREMENTS
series can be operated from a nominal 208V, 400V or 480V thr
Hz. The input voltage range and current 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
AC INPUT POWER CONNECTION
The customers AC line connects to the power supply through four stud type terminals. Only use a
power cable with the correct voltage and current ratings. The recommended wire gauge is listed in the
in section 3.7.1. The ground wire must be equal to or larger than the recommended gauge for
phase. The power supply must be permanently connected to an approved AC distribution box with
suitably rated overcurrent pr
tection (60Amp UL Listed fuse for 208V
input, and 40 Amp UL listed fuse
Connection of this power supply to an AC power source shou
ldbe made by an electrician or
qualified personnel. Do not
xceed the torque specified on input stud terminals.

The following procedure ensures that the power supply is operati
onal and may be used as a basic i
coming inspection check. Refer to Fig. 4
2 for the location of the controls indicated in the
Ensure that the power supply is configured to the default se
Dip switch: All positions at Down (“Off”) position.
Sense connector: Configured to Local Sense as shown in Fig.3
-4:3-4: sense connector default connection
For units equipped with IEEE option, ensure that the IEEE_En switch is
tion), 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 terminals.
4.Turn the front panel ON/OFF switch to ON.
3.8.3 Constant Voltage Check
Turn on the output by pressing OUT pushbutton so the OUT LED illuminates.
Observe the power supply VOLT display and rotate the Voltage encoder. Ensure that the output
the VOLT encoder is rotated. The minimum control range is from zero to the
mum rated output for the power supply model.
Compare the DVM reading with the front panel VOLT display to verify the accuracy of the VOLT
display. Ensure that the front panel V
Turn off the front panel AC power switch.
3.8.4 Constant Current Check
Ensure that the front panel switch is at Off position and the DVM connected to the ou
Connect a DC shunt across the output terminals. En
sure that the shunt and the wires current ra
ings are higher than the power supply rating. Connect a DVM to the shunt.
Turn the front panel switch to On position,
Turn on the output by pressing OUT pushbutton so the OUT LED illuminates.
upply CURRENT display and rotate the CURRENT encoder. Ensure that the
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 th
e 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 ON/OFF switch.

Remove the shunt from the power supply output terminals.
explanation of the OVP function prior to performing the procedure below.
Turn the front panel AC power switch to On position and turn on the output by pressing OUT
Using the VOLT encoder, adjust the output voltage to approx. 10% of the unit vol
ing.3.Momentarily press the OVP/UVL button so that the CURRENT display shows “OUP”. The
VOLTAGE display will show the last setting of the OVP level.
Rotate the VOLT encoder CCW to adjust the OVP setting to 50% of the unit voltage rating.
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
Adjust OVP limit to the maximum by repeating Step 3 and
rotating the VOLT encoder C.W.
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 settin
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 its minimum and check that the out
creased below the UVL x 1.05 setting.
Adjust the UVL limit to the minimum by repeating Sep 1 and rotating the VOLT encoder CCW.
Refer to Section 5.5 for explanation of the FOLD function prior to performing the
Ensure that the output voltage is set to approx. 10% of the unit rating.
Adjust the CURRENT encoder to set the current limit to approx. 10% of the unit rating.
Momentarily press the FOLD button. Ensure that the FOLD LED illuminates. The ou
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 cancel the protection. The output
Press 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”.
Press and hold the REM/LOC button for approx. 3 se
c. 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.
Press and hold the REM/LOC button for approx. 3 sec. The
CURRENT display will show the co
munication 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.

Turn Off the AC input power before making or changing any
connection. Ensure all live circuits are discharged and that all connections
are securely tightened before applying power. There is a potential shock
hazard when using a power supply with a rated output greater than 40V.
When local sensing, a short from +LS or +S to
power supply. Reversing the sense
wires might cause damage to the power supply in local and
remote sensing. (Do not connect
The load cables between the power supply outputs and the load m
ust be a specified. The cable co
nections must be secured to required torque spec. Failure to meet these requirements could cause
substantial voltage losses, terminal over
The output styles vary depending
o the output voltage range.
Platform A & B (Output Voltage Range 7.5V
Vertical Bus Bar Configuration,
Platform C (Output Range 400V
t connections are protected with a metal cover. To connect cables, remove the cover. Co
bles with nuts and bolts.
Proper torque (as per bolt size) should be applied to the bolts.
Typical cable sizes for load connections are shown bel
ow. Use cables that meet requirements for cu
rent, voltage, length, temperature and termination.
Table 1. Recommended Cable Size for Output Connection
The wires should be properly terminated with terminals securely attached. DO NOT use unterm
inated wires for load connectio

To minimize the noise pickup or r
diation, the load wires and remote sense wires should be twisted
pairs to the shortest possible length. Shielding of sense leads may be necessary in high noise
ronments. Where shielding is used, co
nect the shield to the chassis via a rear panel Ground screw.
Even if noise is not a concern, the load and remote sense wires should be twisted
pling, which might impact the stability of power su
pply. The sense leads should be sep
Twisting the load wires reduces the parasitic inductance of the cable, which could produce high fr
quency voltage spikes at the load and the output of power supply, because of current variati
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 power supply rear panel output. Additional filtering with
bypass capacitors at the load te
minals 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 ratin
g should be greater than the power
supply maximum output voltage and current 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
sor across the output to protect the power supply. The breakdown voltage rating of the suppressor
proximately 10% higher than the maximum output voltage of the power supply.
Connecting single loads, local sensing (defaul
10 shows recommended load and sensing connections for a single load. The local sense lines
shown are default connections at the rear panel J2 sense connector. Local sensing is suitable for a
plications where load regul
10: Single load connection, local sensing
Connecting single loads, remote sensing
11 shows recommended remote sensing connection for single loads. Remote sensing is used
stant Voltage mode, the load regulation is important at t
he load terminals. Use twisted or
shielded wires to minimize noise pick
up. If shielded wires are used, the shield should be connected to
the ground at one point, either at the power supply chassis or the load ground. The optimal point for
d should be determined by experime

13: Multiple loads connection with distribution terminal
Either the positive or ne
gative output terminals can be grounded. To avoid noise probems caused by
mode current flowing from the load to ground, it is recommended to ground the output
terminal as close as possible to the power supply chassis ground.
connect the load to the power supply regardless of how the sy
3.10 LOCAL AND REMOTE SENSING
The rear panel J2 sense connector is used 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 for local sensing of the ou
4 for J2 terminals assignment. With local sensing, the output voltage regul
tion is made at the output term
nals. This method does not compensate for voltage drop on the load
wires, therefore it is recommended only for low load current applications or where the load regulation is
14: Sense connector locatio
e 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
sense wires should 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.

Remote positive sense (+S)
Local positive sense. Connected internally to the positive output terminal (+LS).
Local negative sense. Connected internally to the negative output terminal (
Use remote sense where the load regulation at the load end is critical. In remote sense, the power su
ply will compensate for voltage drop on the load wires. Refer to the power su
maximum voltage drop on load wires. The voltage drop is subtracted from the total voltage avai
the output. Follow the instructions below to configure the power supply for remote sen
ing:1.Ensure that the AC On/Off is in t
Remove the local sense jumpers from J2.
Connect the negative sense lead to terminal J2
5 (S) and the positive sense lead to term
1(+S) of the J2 mating connector. Ensure that the J2 mating connector is plugged securely into the
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
connected, an internal protection circuit will activate and shut down the power supply. To re
operation, turn the to the Off position, connect the open load wire, and turn On the power supply.
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 activate
and shut down the power supply.
3.10.4 J2 sense connector technical information
J2 connector type: MC 1.5/5
There is a potential shock hazard at the sense point when using power supply
oltage greater than 40V. Ensure that the connections at the
load end are shielded to prevent accidental contact with hazardous voltages.
ing shielded sense wires, ground the shield
in one place only. The location can be the power su
ply chassis or one of the output terminals.

1: Front Panel controls and indicators
High resolution rotary encoder for adjusting the Output
Voltage. Also adjusts the OVP/UVL levels and selects the
Green LED, lights for constant
segment LED display. Normally displays the ou
put voltage. When the PREV button is pressed, the display
rogrammed setting of the output voltage.
When the OVP/UVL button is pressed, the Vol
4 digit, 7 segment LED display. Normally displays the ou
put current. When the PREV button is pressed, the d
indicates the programmed setting of output current.
Green LED, lights for Constant
High resolution rotary encoder for adjusting the Output
Current. 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.
modes. Press and hold OUT button to toggle b
Restart”. The VOLT display will c
cle between “SAF” and “AUT”. Releasing the OUT button
while one of the modes is di
played, selects that mode.
Green LED, lights when the DC output is enabled.
: Go to local. Press REM/LOC to put the unit
into Local (REM/LOC button is disabled at Local Lockout
Address and Baud Rate setting. Pre
and hold REM/LOC for 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
.-Press FOLD to set Foldback protection to On.
To release Foldback alarm even, press OUT to e
Press FOLD again to cancel the Foldback protection.
Green LED, lights when Foldback protectio

1: Front Panel controls and indicators
Over Voltage Protection and Under Voltage limit se
Press once to set OVP using VOLTAGE encoder (the cu
Press again to set the UVL using VOLTAGE encoder (the
current display shows “UUL”).
Press PREV to display the output voltage
and current limit setting. For 5 sec. the display will show the
d then it will return to show the actual output vol
Front Panel Lock. Press and hold
PREV button to toggle between “Locked front panel” and
“Unlocked front panel”. The display will cycle b
ng the PREV button while one of
the modes is displayed selects that mode.
Green LED, lights when PREV button is pressed
Voltage and Current Fine/Coarse adjustment control. O
erates as a toggle switch. In Fine mode,
CURRENT encoders operate with high resolution and in
Coarse mode with lower resolution (approx. 6 turns).
Advanced Parallel Operation Mode
Green LED, lights when the unit is in Fine m
Red LED, blinks in case of fault detection. OVP, OTP Fol
back, Enable and AC fail detection will cause the ALARM

PANEL CONTROLS AND INDICATORS
2: Rear panel connections and controls
M6 Stud terminal suitable for ring lugs.
Bus-bars up to 300V models.
Stud terminals for models above
RJ-45 type connector, use for connecting power supplies to RS232
or RS485 port of computer for remote control purposes. When u
ing several power supplies in a power sy
tem, the first unit Remote
In is connected to the co
mputer and the remaining units are
RJ-45 type connector, used for chaining power supplies to form a
serial communication bus.
Connector for remote anal
og interface. Includes output voltage and
current limit programming and monitoring signals, Shut
(electrical signal), Enable/Disable control (dry
ply ok (PS_OK) signal and operation mode (CV/CC) s
Nine position DIP switch for selecting remote programming and
monitoring modes for Output Voltage, Current Limit and other co
Connector for making remote sensing connections to the load for
f the load voltage and compensation of load wire drop.
plate for standard units. Isolated Remote Analog pr
gramming connector for units equipped with Isolated Analog control
option. IEEE connector for units equipped with IEEE programming
option (shown). LAN connector for units equipped with LAN pr
Two position DIP switch for selecting option mode or RS232/485
M5x20mm screw for chassis ground connection.
REAR PANEL SW1 SETUP SWITCH
The SW1 Setup switch (see Fig.4
position DIP switch that allows the user to choose the fo
Internal or remote programming for
Output Voltage and Current Limit.
Remote voltage or resistive programming of Output Voltage and Output Current limit.
Select range of remote voltage and resistive programming.
Select range of output Voltage and Output Current monitoring.
Select between RS232 and RS485 communication interface.
Enable or disable the rear panel Enable/Disable control (dry contact).

3 for description of SW1 position functions. The factory default setting is Down for
all positions. Observe ESD precautions when setting switch positions.
3: SW1 positions functions
-3Programming range select
(Remote voltage/resistive)
-7Output Voltage resistive
-8Output Current resistive
Enable/Disable control is
Before making any changes to the SW1 switch setting, disable the power supply output by pres
the front panel OUT button. Ensure that
the output voltage falls to zero and OUT LED is off. Then
bladed screwdriver to change the SW1 switch setting.

4.5 REAR PANEL J1 PROGRAMMING AND MONITORING CONNECTOR
The J1 Programming and Monitoring connector is a DB25 subminiature c
power supply rear panel. Refer to Table 4
4 for description of the connector functions. The power su
ply default configuration is Local operation, which does not require connections to J1. For remote o
eration using J1 signals use t
he plug provided with power supply or equivalent type. It is essential to
tic body plug to conform to Safety Agency requirements. Shielded cable is required to maintain
EMC Specification for J1 wires. Co
nect the shield to a power supply chassis gr
J1 connector type: AMP, P/N: 747461
J1 plug description: AMP, P/N: 745211
Wire dimension range: AWG26
Extraction tool: AMP, 91232
-1Before making any connection, turn the power switch to the Off position and wait until the front panel
Terminals 12, 22 and 23 of J1 are connected internally to the
LS) potential of the power supply. Do not
attempt to bias any of these terminals relative to the neg
tivelocal sense. Use the Isolated Programming interface option to
allow control from a programming source at a different pote
tive to the power supply negative.
To prevent ground loops and to maintain the isolation of the
Power supply when programming from J1, use an
grounded programming source.
There is a potential shock hazard at the output when using a
power supply with rated output greater than 40V. Use wires
with minimum insulation r
ating equivalent to the maximum
output voltage of the power supply.

ector terminals and functions
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
gramming of output voltage and output current.
voltage/resistance progra
Input for remote analog voltage/resistance programming
Output for monitoring the power supply Output Voltage.
Control Common. Return for VMON, IMON, CV/CC,
Connected internally to the negative local sense potential
(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 internal
Output for monitoring the power supply Output Current.
J1-25POutput for current balance in parallel operation.

CHAPTER 5 LOCAL OPERATION
This Chapter describes the op
erating modes that are not involved in programming and monitoring the
power supply via its serial communication port (RS232/RS485) or by remote analog signals. Ensure
that the REM/LOC LED on the front panel is Off, indicating Local mode. If the REM/LOC LED
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 communication 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
setting, output current limit setting and the load resist
In constant voltage mode, the power supply regulates the output voltage at the selected value,
rent varies as required by the load.
While the power supply operates in constant voltage mode, the VOLTAGE L
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 encoder
knob to program the output vol
tage. When the output is disabled, press the PREV button and then
rotate the VOLTAGE encoder knob. The VOLTAGE meter will show the programmed output vol
age for 5 seconds after the adjustment has been co
pleted. Then the VOLTAGE meter will display
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.
5.2.2 Constant Current Operation
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 CU
Adjustment of the output current can be made when the power supply output is enabled (Ou
Disabled output (Off): Press PREV button and then rotate the Current encoder knob. The
RENT meter will show the programmed current for 5 seconds after the adjustment has been
completed. Then the VOLTAGE meter will display “OFF”.
If after completing the adjustment, the display sh
than the setting, the power supply may be at current limit. Check the
load condition and the power supply current limit setting.
The maximum and minimum setting values of the output voltage are li
by the Over Voltage protection and Under Voltage limit setting. Refer to
ections 5.3 and 5.4 for more details.
setting values of the output voltage are li
by the Over Voltage protection and Under Voltage limit setting. 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
r knob. The CURRENT meter will show the programmed cu
limit for 5 seconds after the adjustment has been completed, and then will return to show the
Enabled output, power supply in Constant Current mode: Rotate the CURRENT encoder
to adjust the current limit.
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
the power 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, the power supply will automatically switch
back to Constant Voltage mode.
5.3 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 mo
nitors the voltage at the power supply sense points and thus pr
ing 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 out
put 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 di
” and the setting value for 5 se
onds after the adjustment has been completed and then
will return to its previous state.
To preview the OVP setting, press the OVP/UVL pushbu
ton so that the CURRENT display will show
“OUP”. At this time, the VOLTAGE displa
y 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.
To reset the OVP circuit after it activates:
Reduce the power 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 switch, 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 sect.5.7
this method the power supply should be set to Auto
Send OUT command via the RS232/485 communication port.

5.4 UNDER VOLTAGE LIMIT (UVL)
The UVL prevents adjustment of the output voltage below a certain limit. The combination of U
OVP functions, allow the user to create a protection 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 butto
n TWICE, so that the CURRENT meter shows “UUL”. The VOLTAGE 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 pr
UVL setting values are limited at the maximum level to approximately 5% below the Output Voltage setting. A
tempting to adjust the UVL above this limit will result in no response to the adjus
Foldback 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 over current condit
Setting the Foldback protection
To arm the Foldback protection, the FOLD button should be pressed so that the FOLD LED illum
tion, transition from Constant Voltage to Constant Current mode will activate the
ivation of the Foldback protection disables the power supply output, causes 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.
OUT button. The power supply output is enabled and the Output Voltage and cu
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 again.
Press the FOLD button to cancel the Foldback protection. The power supply output will be di
VOLTAGE display will show “OFF”. Press the OUT button to enable the power supply output.
tput Off and then On using the SO control (refer to Section 5.7). In this method the
foldback protection remains armed, therefore if the load current is higher than the current limit setting the Fol
back protection will be activated.
Off using the switch, wait until the front panel display turns Off, then turn the unit back
ON again. The power supply output is enabled and the Output Voltage and Current will return to their last se
ting. In this method, the Foldback protection remains a
rmed; therefore if the load current is higher than the
current limit setting, the Foldback prote
5.6 OUTPUT ON/OFF CONTROL
The Output On/Off enables or disables the power supply output. Use this function to make adjus
the power supply or the load without shutting off the ON/OFF switch. 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
e power supply output. When the output is disabled, the 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 S
hut-Off (SO) terminals. The SO terminals accept a
2.5V to 15V signal or Open
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 unit. (T
mode, the output will be enabled after applying AC power; even if SO is in Off level). After On to Off transition is
detected, the SO will enable or disable the power supply output according to the signal level or the short/open a
d to J1. This function is useful for connecting power supplies in a “Daisy
chain” (refer to Section 5.16). The SO
control can be used also to reset the OVP and Fold Protection. Refer to Section 5.3 and 5.5 for d

ignal, the VOLTAGE display will show “SO” to indicate the unit state. J1 contact
nal input and contacts 2 and 3, IF_COM, are the signal return (connected internally). Contacts 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
5.8 ENABLE/DISABLE CONTROL VIA REAR PANEL J1 CONNECTOR
Contacts 1 and 14 of J1 (Fig.4
2, item 5) serve as Output Enable/Disable terminal
s by switch or relay. This fun
tion is enabled or disabled by the SW1 Setup switch position 9. Refer to Table 5
able/Disable function and
3: Enable/Disable function and SW1 setting
CV/CC signal indicates the operating mode of the power supply, Constant Voltage or Constant Cu
CV/CC signal is an open collector output with a 30V parallel zener, at J1
13, referenced to the COM potential
12 (connected internally to the negative sense potential). When the power supply operates in Constant Vol
age mode, CV/CC output is o
pen. When the power supply operates in Constant Current mode, CV/CC signal ou
0.6), with maximum 10mA sink current.
PS_OK signal indicates fault condition in the power supply. PS_OK is a TTL signal output at J1
2, 3 (Isolated Interface Common). When a fault condition occurs, PS_OK level is low, with max
mum sink current of 1mA; when no fault condition occurs, PS_OK level is high with maximum source current of
2mA. The following faults will set
the PS_OK to Fault state:
*IEEE failure (With optional IEEE interface)
To prevent possible damage t
o the unit, do not connect any of the
Enable/Disable inputs to the positive or negative output potential.
If the Enable/Disable inputs are opened when the unit
is in Safe Start mode, it is r
quired to short the Enable/Disable inputs and then press OUT button or send OUT1
command to resume operation.
Do not connect CV/CC signal to a voltage source higher than 30VDC,
Always connect CV/CC signal to the voltage sou
to limit the sink current to less than 10mA.

When turning on the power supply, it can start to its last
setting of Output Voltage and Current limit with the output
restart) or start with the output disabled (Safe mode). Press and hold the OUT button to select b
tween Safe start and Auto
restart modes. The VOLTAGE display will continuously cycl
e between “SAF” and “AUT”
every 3 seconds. Releasing OUT push
button while one of the modes is displayed, selects that mode. The default
setting at shipment is Safe mode.
5.11.1 Automatic start mode
In this mode, the power supply restores its last operatio
up, the output is enabled
cording to its last setting.
In this mode, the power supply restores its last operation setting and sets the Output to Off state. At
he output voltage and current are zero. To enable the output and
restore the last output voltage and current limit values, momentarily press OUT button.
5.12 OVER TEMPERATURE PROTECTON (OTP)
The OTP circuit shuts down the power supply before the internal c
omponents can exceed their safe
internal operating temperature. When an OTP shutdown occurs, the display show “OTP” and the
Resetting the OTP circuit can be automatic (non
latched) or manual (latched) depending on the Safe or
In Safe start mode, the power supply stays off after the over temperature cond
tion has been removed. The display continues to show “OTP” and the ALARM LED co
blink. To reset the OTP circuit, press OUT button (or sen
d OUT ON command via the serial port).
restart mode, the power supply recovers to its last setting automat
cally when the over temperature condition is removed.
The power supply is equipped with Last Sett
ing Memory, which stores power supply parameters at
Remote/Local (If the last set
ting was Local Lockout, the supply will return to Remote mode)
Locked/Unlocked Front Panel
(Items 8, 9, 10 are related to Remote digital control operation and explained in Chapter 7)
ME MODEL can be connected in series to obtain increased output voltage.
Split connection of the power supplies gives positive and negative output voltage.

5.14.1 Series connection for increased output voltage
In this mode, two units are connected so tha
t their outputs are summed. Set the current limit of each
power supply to the maximum that the load can handle without damage. It is recommended that d
be connected in parallel with each unit output to prevent reverse voltage during start up s
case one unit shuts down. Each diode should be rated to at least the power supply rated output voltage
and output current. Refer to Fig.5
ries operation with local and remote sensing.
Remote programming in series operation for in
1. Programming by external voltage:
The analog programming circuits of this power supply are
referenced to the negative Sense (
fore, the circuits used to control each series connected
unit must be separated and f
loated from each other using
the Isolated Analog option.
2. Using the SO function and PS_OK signal: The Shut
Off and PS_OK circuits are referenced to the
isolated interface common, IF_COM (J1
IF_COM terminals of different units can be connected t
obtain a single control circuit for the power supplies co
nected in series. See Section 5.16 for d
Do not connected power supplies from diffe
manufacturers in series or in p
When power supplies are connected in series, and
oad 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 RS232/485 or IEEE,

3. Programming by external resistor:
Programming by external resistor is possible. Refer to
4. Programming via the Serial
he communication port is referenced to the IF_COM
Communication port (RS232/RS485):
which is isolated from the power supply output potential.
Therefore power supplies connected in series can be
er 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 current limit of each
upply to the maximum that the load can handle without damage. It is recommended that diodes
be connected in parallel with each unit output to pr
vent reverse voltage during start
of the units shuts down. Each diode should be rated to at l
east the power supply rated ou
and output current. Refer to Fig.5
3 for this operating mode.
Remote programming in series operation for positive and negative output voltage
Programming by external voltage:
The analog programming circuits
referenced to the negative Sense (
fore the circuits used to control series connected unit
must be separated and floated from each other.
Using the SO function and PS_OK:
Off and PS_OK circuits ar
isolated interface common, IF_COM (J1
IF_COM terminals of the units can be connected to obtain
a single control circuit for the power supplies connected
Programming by external resistor:
Programming by external r
esistor is possible. Refer to
Programming via the Serial
Communication port (RS232/RS485):
The communication port is referenced to the IF_COM
which is isolated from the power supply output potential.
connected in series can be
tors. Refer to Chapter 7 for details.

Up to four units of the same VOLTAGE and CURRENT rating can be connected in parallel to provide
he 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 oper
tion, only the master unit can be programmed by the computer while the
to the computer for voltage, current and status readback only. Follow the following procedure to co
figure multiple supplies for pa
Setting up the Master unit
Set the master unit output voltage to the desired v
oltage. Program the current limit to the desired
load current limit divided by the number of parallel units. During operation, the master unit operates
in CV mode, regulating the load voltage at the programmed output voltage. Connect the sensing
local or remote sensing as shown in Fig.5
In this method, setting the units as Master and Slaves is made by the rear panel J1 connections
and the setup switch SW1. Each unit displays its own output current and volta
load current, the Master unit should be programmed to the total load current divided by the number
of units in the system. Refer to the following procedure to configure multiple supplies for simple
The output voltage of the slave units should be programmed higher than the output voltage of
the master unit to prevent interference with the master unit’s control. The current limit of each unit
should be programmed to the desired load curr
ent limit divided by the number of pa
2. Set the rear panel setup switch SW1 position 2 to its up position.
3. Connect short between J1
4).-4. Connect J1 terminal 10 (IPGM) of the slave unit to J1 terminal 25 (
During operation the slave units operate as a controlled current source following the master output cu
ommended that the power system is designed so that each unit supplies up to 95% of its
current rating because of th
e imbalance which may be caused by cabling and conne
Setting Over Voltage protection
The master unit OVP should be programmed to the desired OVP level. The OVP of the slave units
should be programmed to a higher value than the master OV
P. 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), only that unit would shut down and the remaining slave units
Setting Foldback protection
Foldback protection is desired and may only be used with the master unit. When the master unit
shuts down it programs the slave units to zero output vol
In parallel operation, power supp
lies can be connected in local or remote sensing. Refer to Fig. 5
nections of parallel power supplies. The figures show connection of two
units, however the same co
nection method applies up to 4 units.

it is important to minimize the wire length and resistance. Also the positive and negative
wire resistance should be as close as possible to each other to achieve current balance between power
possible to configure a multiple power supply system to shut down all the units when a fault cond
one of the units. When the fault is removed, the system recovers according to its setting to Safe start mode or
h SW1 position 5 should be set to its Down position to enable the Daisy
chain operation. Other SW1
positions can be set according to the application requir
If a fault occurs in one of the units its PS_OK signal will be set to low level and the displ
ay will indicate 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 last setting according to their Safe start or Auto
n of three units, however the same connection method a
5.17 ADVANCED PARALLEL OPERATION
In this method, multiple supplies can be configured to parallel operation as a single power supply. The
total load current and output voltage
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.

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.
15 of the ‘First’ Slave Supply.
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)
Select Local or Remote sense
2. Setting the units as Master or Slave
a) Depress and hold the FINE button for 3 seconds. The Master/Slave configuration will be
on the Current Display. Rotate the CURRENT encoder to obtain the desired mode. Refer to Table 5
-4for the CURRENT display and modes of operation.
Master supply with 1 Slave supply
H3Master supply with 2 Slave supplies
Master supply with 3 Slave supplies
4: Setting mode of operation
b) When the desired configuration is obtained, depress and release the FINE button or wait approx. 5
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 for
units parameters will automatically set the following:
*Output voltage to approximate. 102% of rated output voltage.
*Programmed Current to zero.
*OVP to its maximum value
c) The Master and Slave modes are stored in the power supply EEPROM when the AC power is turned
off. The system will return to the Master/Slave mode upon re
d) Master unit does nto display actual total current of all the units
4. CURRENT display accuracy
In the advanced parallel mode, the Master unit
does not display actual total current of all units in parallel.
this method, the CURRENT display accuracy is 2% +/
1 count. In cases that higher accuracy is r
is recommended to use the basic parallel o
To release units from Slave mode
Slave units can be released using the following procedure:
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 new setting.
e) After exiting from Slave operation the unit’s parameters will be set to:

Make sure that the connection between
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 lengt
h and resistance. Also the positive and
negative wire resistance should be close as possible to each other to achieve current balance b
*Programmed Current to zero
*OVP to its maximum value
Fig.5-4: Parallel connection with local sensing
Fig.5-5: Parallel operation with Remote sensing

The front panel controls can be locked to
protect from accidental power supply parameter change. Press and hold
PREV button to toggle between “Locked front panel’ and “Unlocked front panel”. The di
“LFP” and “UFP”. Releasing the PREV button while one of the modes is di
In this mode, the front panel controls are enable to program and monitor the power supply parameters
In this mode the following front panel controls are disabled:
The power supply will not respond to attempts to use these controls. The VOLT display will show “LFP” to indicate
that the front panel is locked.
OVP/ UVL button is active to preview the OVP and UVL setting.
Use PREV button to preview the output voltage and current setting or to unlock the front panel.

connect internally to the
LS). Do not connect these term
nals to any potential other than
LS), as it may damage the power
When the Isolated Analog Option is ins
talled, 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.
CHAPTER 6 REMOTE ANALOG PROGRAMMING
The rear panel connector J1 allows the user to program the power supply output voltage and current
log device. J1 also provides monitoring signals for output voltage and output current.
ming range and monitoring signals range can be selected between 0
the setup switch SW1. When the power supply is in Remote Analo
g programming, the serial commun
cation port is active and can be used to read the power supply parameters.
6.2 LOCAL/REMOTE ANALOG INDICATION
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 limit.
In Local mode, the output voltage and current limit can be programmed via the front panel VOLTAGE
and CURRENT encoders or via the RS232/485 port. In Remote Analog mod
e, the output voltage and
current limit 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 (J1
1: Local/Remote Analog control function
6.3 LOCAL/REMOTE ANALOG INDIC
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
tor so that the sink current will be less than 5mA
when the output is in low state. Refer to table 6
2: Local/Remote Analog ind

To maintain the isolation of power supply and prevent ground loops, use an
isolated programming source when operating the power supply via remote
analog programming at J1 connector.
6.4 REMOTE VOLTAGE PROGRAMMING OF OUTPUT VOLTAGE AND CURRENT LIMIT
Perform the following procedure to set the power supply to R
emote Voltage programming:
Turn the power supply switch to Off.
2.Set setup switch SW1 position 1 and 2 to their UP position.
Set SW1 position 3 to select programming voltage range according to Table 6
Ensure that SW1 positions 3 to select programming vol
tage range according to Table 6
Connect a short 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.
Set the programming 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 setting can be
determined according the application.
trol circuits allow the user to set the output voltage and current limit up to 5% over
rated maximum value. The power supply will operate within the extended range,
however it is not recommended to operate the power supply over its voltage and cu
ing and performance is not guaranteed.
3 setting and programming range

6.5 RESISTIVE 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 co
23. The voltage across the programming resistors is used as a pr
gramming voltage for the power
10Kohm can be selected to program the output voltage and cu
rent limit from zero to full sca
A variable resistor can control the output over its entire range, or a combination of variable resistor and
series/parallel resistors can control the output over r
stricted portion of its range.
Perform the following procedure to set the power supply
to Resistive programming:
Set setup switch SW1 positions 1 and 2 to their UP position.
Set SW1 position 3 to select programming resistor range according to Table 6
Set SW1 positions 7 and 8 to their UP position to enable resistiv
Connect a short between J1
4).5.Connect the programming 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 th
resistors to change the power supply output.
SW1 positions 4, 5, 6 and 9 are not required for remote programming. Their setting can be dete
mined according to the application requirements.
The control circuits allow the user to set the output vol
tage and current limit up to 5% over the
rated maximum value. The power supply will operate within the extended range, however it
is not recommended to operate the power supply over its voltage and current rating and perfor
3.Tomaintain the temperature stability specification of the power supply, the resistors used for pr
gramming should be stable and low noise resistors, with temperature coeff
When resistive programming is used, front panel and compute
r control (via serial communication
port) of output voltage and current are disabled.
-9)Current limit programming

6.6 REMOTE MONITORING OF OUTPUT VOLTAGE AND CURRENT
The J1 connector, located on the rear panel provides analog signals for monitoring the output voltage
and output current. Selection of the voltage range between 0
-10V is made by setup switch
4. The monitoring signals represent 0 to 100% of the power supply output voltage and output cu
rent. The monitor outputs have 500 ohm series output resistance. Ensure that the sensing circuit has
an input resistance of greate
r than 500 Kohm or accuracy will be reduced.
5 for 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
analog control signals and connect shield to
chassis (As stud is provided near J1).
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:
PREV button to display the output voltage and current
fined by the encoders or communication.
In Remote analog mode, power supply parameters can be
programmed and readback via the communication port e
cept output voltage and cu

CHAPTER 7 RS232 & RS485 REMOTE CONTROL
This chapter describes the operation of the Genesys
10kw and 15kw power supplies via the serial
tion port. Details of the initial set
or RS485, the command set and
col are described in this chapter.
The power supply is shipped with the following setting:
The power supply address can be set to any address between 0 and 30. Follow the instructions d
scribed below to set the addr
If the unit is in Remote mode (front panel REM/LOC LED illuminates), press REM/LOC bu
put the unit into Local mode.
Press and hold for approximately 3sec. the REM/LOC button. The VOLTAGE display will indicate
ng the VOLTAGE adjust encoder, select the address.
To preview the address at any time, press and hold the REM/LOC button for approx. 3 sec. The
VOLTAGE display will indicate the power supply address.
To select between RS232 or RS48
5 set the rear panel setup switch SW1
Five optional rates are possible: 1200, 2400, 4800, 9600 and 19200. To select the desired rate, the
following steps should be taken:
in Remote mode (front panel REM/LOC LED illuminates), press REM/LOC button to
put the unit into Local mode.
Press and hold for approx. 3 sec. the REM/LOC button. The CURRENT display will show the co
munication port baud Rate.
Using the CURRENT adjust encod
er, 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 RS232 and RS485 cable description for conne
There are two Remote modes:
1. Remote: In this mode, return to local can be made by the front panel REM/LOC or via
mand RMT 0. Set the unit into Remote mode via s
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
recycling AC power. In lo
cal Lockout mode, the front panel REM/LOC button is
not active. Set the unit into Local Lockout mode via serial port RMT 2 command.
RS232/485 port in Local mode
When the power supply is in local mode, it can receive queries or commands. If a query is rece
the power supply will reply and remain in Local mode. If a command that affects the output is received,
the power supply will perform the command and change to Remote mode.
Serial commands may be sent to set the status registers and read them while t
he unit is in Local mode.
If the Enable registers are set (refer to Section 7.8) the power supply will transmit SRQ’s while in Local
Front panel in Remote mode
Front panel control in Remote mode is disabled except for:
PREV: use to preview the Voltag
e and Current limit 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 PREV and OVP/UVL are active.
7.3 REAR PANEL RS232/485 CONNECTOR
The RS232/485 interface is accessible thr
ough the rear panel RS232/485 IN and RS485 OUT conne
tors. The connectors are 8 contact RJ
45. The IN and OUT connectors are used to connect power su
plies in a RS232 or RS485 chain to a controller. Refer to Fig. 7

The address (ADR n) command must
before any other commands are accepted.
nection to RS232 or RS485 bus
connected to RS232 or RS485 bus. The first unit connects to the controller via
RS232 or RS485 and the other units are connected with RS485 bus.
1. First unit connection: Refer to Section 7.4.1 for connecting the first unit to the controller.
nits 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 (refer to Fig. 7
7.5 COMMUNICATION INTERFACE PROTOCOL
Fig7-5: Multiple power supply RS232/485 connection
Serial link cable with RJ-45 shielded connectors (P/N: GEN/RJ-45)

Serial data format is 8 bit, one start bit and one stop bit. No parity bit.
The Address is sent separately from the command. Re
fer to section 7.7.3 for details.
The end of message is the Carriage Return character (ASCII 13). The power supply ignores the Line
Feed (ASCII 10) character.
The backslash character “
” will cause the last command to be repea
The user may add a checksum (optional) to the end of the command. The checksum is “$” followed by
acters. If a command or a query has a checksum, the response will also have one. There
is no CR between the command string and the “
The power supply acknowledges received commands by returning an “OK” message. If an error is
detected the power supply will return an error message. The rules of checksum apply also to th
If an error is detected in command or query, the power supply will respond with an error message. R
fer to section 7.6 for details.
The backspace character (ASCII 8) clears the last character sent to the pow
The power supply will return error messages for illegal commands and illegal programming param
1 for programming error messages and Table 7
Returned when program voltage (PV) is programmed above acceptable range.
Example: PV above ‘105% of supply rating’
Returned when programming output voltage below UVL setting.
Returned when OVP is progra
mmed below acceptable range.
Example: OVP less than 5% of supply voltage rating’ plus ‘voltage setting’.
Returned when UVL is programmed above the programmed output voltage.
Returned when programming the Output to ON during a fault shut down.
2: Commands error messages

7.7 COMMAND 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 numeric value, the value may be up to 12 characters long.
Carriage Return: If the CR character (ASCII 13) is r
eceived by itself, the power supply will
respond with “OK” and CR.
Initialization control commands
ADR is followed by address, whic
h can be 0 to 30 and is used to access the power
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 not
supply to local or remote mode:
RMT 0 or RMT LOC, sets 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 set
The unit is in Local mode.
The unit is in Remote mode.
The unit is in Local Lockout (latched remote) mode.
Returns MD MODE OPTION Status. 1 indicates installed and 0 indicates not i
If\<CR> is received, the power supply will repeat the last

Returns the power supply model identification as an ASCII string:
Returns the software version as an ASCII str
Returns the unit serial number. Up to 12 characters.
Returns date of last test. Date format: yyyy/mm/dd
Sets the output voltage value in Volts. The range of voltage value is descri
3. The maximum number of characters 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
mand. When in Local mode, returns the PREVIEW (front
panel) settings in a 5 digits string.
Reads the actual output voltage. Return 5 digits string.
Example: 60V supply sends 01.150, 15.012, 50.000, etc…
Set the output current value in Ampere
s. The range of current values is d
5. The maximum number of characters is 12. See the follo
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 string
sent in the PC n command. When in Local mode, returns the PREVIEW (front
tings in a 5 digits string.
Reads the actual output current. Returns 5 digits string.
Example: 200A supply sends 000.50, 110.12, 200
Display Voltage and Current data. Data will be returned as a string of ASCII chara
ters. A comma will separate the different fields. The fields, in order, are: Mea
Voltage, Programmed Voltage, Measured C
urrent, Programmed Current, Over Vol
age 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
Returns the A to D Converter filter frequency: 18,23 or 46 Hz.
Turns the output to ON or OFF. Recover from Safe
Returns the output On/Off sta
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 the
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 in addition to the sta
dard 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.
e added Fold Back Delay to zero.

Sets the OVP level. The OVP setting range is given in Table 7
ters after OVP is up to 12. The minimum setting level is approximately 105%
put Voltage setting, or the value in Table
7-7, whichever is higher. The
maximum OVP setting level is shown in Table 5
below this level will result in an execution error response (“E04”). The OVP setting
Returns the setting “n” where “n” i
s the exact string in the user’s “OVP n”. When 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 “E06”
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 s
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
settings are erased when the supply power is switched Off and the new “last settings”
Recalls last settings. Settings are from the last power
down or from the last “SAV”
y operation mode. When the power supply is On (OUT 1) it
will return “CV” or “CC”. When the power supply is OFF (OUT 0 or fault shu
7.8 GLOBAL OUTPUT COMMANDS
All supplies, even if not the currently addressed sup
ply, receiving a global command will ex
cute the command. No response to the PC issuing the command will be returned to the PC.
The PC issuing the command will be responsible to delay and any other communications until
the command is execute. 200 Ms minimu
m is the suggested delay.
If the command contains an error, out of range values for example, no error report will be sent
Reset. Brings the power supply to a safe and known state:
Output voltage: 0V, output current: 0A,
AST: Off OVP: Max, UVL: 0.
The conditional register (FLT and STAT) are updated. Other registers are
Latching faults (FB, OVP, SO) are cleared, OUT fault s
Sets the output voltage value in volts. The range of voltage values is shown in T
5. ‘n’ may be up to 12 char plus dec. pt
Program the output current value in amperes. The range of current values is
p 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
TP< 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 when the supply power
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 communication is
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 immediately by the
supply. If the command requires data to be sent to the HOST PC
or IEEE Board (see sections
7.9.4 and 7.9.3.1) that response will be transmitted immediately with no delay due to any sof
head. With the exception of the Disconnect from communications command, section
7.9.3.1, commands must be sent by the HOST P
C or IEEE Board 2 times in sequence for ver
fication. All have the most significant bit, D7, set to a logic 1. A CR, carriage return, character is
cluded in a single byte command. The RST command will not change any setting made by
All Single Byte commands will be executed in 1 ms or less. This does not include any response
sent to the HOST/IEEE Board, which is dependent upon the response length and the serial
transmission speed (Baud rate).
Global commands without response
ble 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 supply and all
plies, will disable MD Mod
e as a result of this command.
Enable MD Mode (MD MODE OPTION REQUIRED)
Send to enable Multi Drop Mode. The Hex value of the command is 0xA1. Sent it two times
in sequence. When this command is sent, the supply will set SRQ retransmission to the di
ate; if you wish it to be enabled you must send the enable command. All supplies,
both the currently addressed supply and all non
addressed supplies, will enable MD Mode
Disable SRQ retransmission (MD MODE OPTION REQUIRED)
ble is the default condition upon power up. The Hex value of the command is 0xA2.
Sent it two times in sequence. If the supply sends an SRQ it will only sent it 1 time. All su
plies, both the currently addressed supply and all non
retransmission as a result of this command. All status registers will retain their data when

Enable SRQ retransmission (MD MODE OPTION REQUIRED)
Enable retransmission of SRQs. This is only available when the Multi Drop Mod
in the supply. The Hex value of the command is 0xA3. Send it two times in sequence. If the
supply sends an SRQ it will be repeated on a timely basis, 10 ms plus 20 ms times the su
ply address, until answered. All supplies, both the currently a
ddressed supply and all non
addressed supplies, will enable SRQ retransmission as a result of this co
Enable FLT Bit in the SENA Register
The Hex value of the command is 0xA4. Send it two times in sequence.
Global commands with response
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
send the ‘ADR nn’ command to reestablish communications with the
the first command the supply will respond with an OK<CR>. The Hex value of the command
is 0xBF. All supplies, both the currently addressed supply and all non
will respond to this command; but only the currently a
ddressed supply (if any) will respond
Addressed commands with response
Send (0x80 + Address) (1 byte binary
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 Register IFEVE/). All registers will be represented in two Hex bytes. Following the
register data, a single dollar sign, $, will be ad
ded to signal the end of data and the start of a
checksum. The checksum will be the sum of all register data and will be repr
Hex bytes. The transmission will end with the CR character. If repetitive sending of SRQs
was active and the supply
was sending them, the supply will stop sending repetitive SRQs
but leave the function active. The contents of the registers will not be destroyed. Note that
the supply does snot have to be the active addressed su
Note that this command will not execut
e if another command is being processed.
Print the total time the supply has operated under AC power. Send 2 bytes in sequence, A6
Hex and the address of the supply in binary. A 32 bit integer will be returned in 8 Hex bytes.
ill be the number of minutes that power has been ‘ON’ in the supply in binary. A
‘$’ sign and 2 byte Hex checksum will be appended to the data. There is no method pr
vided 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 the active addressed su
This command will not execute if another command is being processed.
Note that Single byte commands do not loa
d data into the supply’s data output buffer.
Thus this command will not cause the supply to retransmit data obtained from any previous

Send (0xC0 + Address) (1 byte binary
send 2 times sequentially). The suppl
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 bu
this command will not cause the supply to retransmit data obtained from any previous Si
Test if MD Mode is Installed
Send AA Hex followed by the address of the supply in binary. If not installed, the supply will
If installed, the supply will return a ‘0’.
Addressed commands without response
Send (0xE0 + Address) (1 byte binary
send 2 times sequentially). The supply will stop re
sending SRQ. If Enable SRQ retransmission is active, it will remain a
Re-enable SRQ with out reading/clearing the SEVE Register
Send 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
l events previously recorded in the Fault Event Register must have been se
viced by the user’s software prior to this command to take affect.
Set supplies into MD Mode
Disable retransmission of SRQs by
Enable retransmission of SRQ
Enable the FLT bit in the SENA
All supplies will halt transmission and
Non destructive read of all register.
x xxxx is the address of the supply in

Re-enable SRQ without reading or
clearing the SEVE Register. xxxx
xxxx is the address of the supp
binary. Works only in MD Mode.
Read the time the supply is active
under AC Power. xxxx xxxx is the
address of the supply in binary. R
turns a 32 Bit integer as 8 Hex byte
A ‘$’ sign is appended to the data
followed by a 2 byte check
total of 11 bytes are returned.
Retransmit last response from a
command. x xxxx is the address of
Acknowledge SRQ. If retransmission
of SRQ is enabled, it will remain e
abled for the next SRQ. X xxxx is the
address of the supply in binary.
Returns a 0 if not installe
installed. A ‘$’ sign followed by a 2
bytes checksum and Carriage Return
is appended to the data. xxxx xxxx is
the address of the supply in binary.
SRQ from supply when in MD Mode.
s the address of the supply in
3. SINGLE BYTE COMMUNICATIONS
4: Current programming range

The power supply can accept values higher 5% than the table values, however it is not recommended to
program the power supply over the rated values.
or 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), FR(00)
Set Fault Enable Register using 2
Reads Fault Enable Register. Returns 2
Reads Fault Event Register. Returns 2
digit hex. Clears bits of Fault Event Register.
s Status Conditional Register. Returns 2
Sets Status Enable Register using 2
Reads Status Enable Register. Returns 2
Reads Status Event register. Returns 2
digit hex. Clears bits of Status Event re

7.10 STATUS, ERROR AND SRQ REGISTERS
This section describes the various status error and SRQ registers structure. The registers can be read
or set via the RS232/485 commands. When using the IEEE option, refer to the User’s Manual f
sysTMPower Supply IEEE Programming Interface.
7 for the Status and Error Re
The fault Condition Register and the Status Condition Register are read only registers that the user
he condition of the supply. Refer to Table 7
8 for description of the Fault Condition
Register bits and Table 7
10: Fault Condition Register
The AC input returns to normal.
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 r
The supply output is turned On by front
panel button or OUT 1 command.
Rear panel J1 Enable terminals closed.
11: 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 ac
reporting is enabled (using “FENAxx”).
Fault Event Register cleared (FEVE?).
Front Panel or serial command).

Fold protection disabled (from Front
Panel or serial command).
Supply in Remote mode or Local
Service Request: Enable and Event Registers
The conditional Registers are continuously monitored. When a change is detected in a register bit,
ch is enabled, the power supply will generate an SRQ message.
The SRQ message is: “Inn” term
nated by CR, where the nn is the power supply address. The SRQ will
be generated either in Local or Remote mode.
able and Event registers.
The Fault Enable Register is set to the enable faults SRQs.
12: Fault Enable Register
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 cleared when
FEVE?, CLS or RST commands are received.

7.11 SERIAL COMMUNICATION TEST SET
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.
2.1 Open Hyper Terminal…………………….
2.3 Connect to…………………………………
2.4 Configure port properties:
2.5 Open Properties in the program
Select Echo characters locally, select send line ends with line feed.
On some PC systems, pressing the number keypad “E
displayed messages. Use the alphabetic “E
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: RS232/485 to RS232 (refer to
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 voltage
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 GPIB (IEEE
face. Output Voltage and Current Limit can be programmed and readback through optically
signals 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.
IS420): Using current signals for programming and readback.
Output voltage programming accuracy
%+/-1Output current programming accuracy
%+/-1Output voltage programming temperatu
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 circuits t
o minimize the readback error.
4-20mA option (PN: IS420)
Output voltage programming accuracy
%+/-1Output current programming accuracy
%+/-1Output voltage programming temperature coefficient
°C+/-200Output current programm
ing 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

8.3 ISOLATED PROGRAMMING & MONITORING CONNECTOR
1 for detailed description of the rear panel Isolated P
connector. To provide the lowest noise performance, it is recommended to use shielded
1 for description of the connector.
Isolated programming plug P/N: MC1.5/8
8-1: Detailed description of Isolated programming & Monitoring connector
Shield, connected internally to
Output current programming i
Ground for programming signals.
Ground for programming signals.
Output current monitoring output
Shield, connected internally to
Fig.8-1: Isolated Programming & Monitoring connector

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.
To prevent damage to the unit, do not program the output voltage and
current to higher then the power supply rating.
12 must be shorted together with a jumper.
12 must be shorted together with a jumper.
SW1 position 3 and 4 must be in their Up position for operation
20mA Isolated Programming and Monitoring.
8.4 SETUP AND OPERATING INSTRUCTIONS
8.4.1 Setting up the power sup
Perform the following procedure to configure the power supply.
Turn the power supply AC power switch to Off.
Connect a short between J1
4).3.Set the Setup switch SW1 positio
ns 1 and 2 to their 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
Ensure that SW1 positions 7 and 8 are in their down position.
the programming sources to the mating plug of the Isolated Programming connector. O
rect polarity of the voltage source.
Set the programming sources to the desired levels and turn the power supply ON.
Setting up the power supply fo
r 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 short between J1
4).3.Set the Setup switch SW1 positions 1 and
Set SW1 position 3 to its Up position.
Set SW1 position 4 to its Up position.
Ensure that SW1 positions 1 and 2 to their Up position.
Connect the programming source to the mating plug of the Isolated Programming connector.
rect polarity of the voltage source.
Set the programming sources to the desired levels and turn the power supply ON.

This Chapter provides information about maintenance, calibration and trou
Units requiring repair during the warranty period should be returned to a TDK
authorized service facility. Refer to the addresses listing on the back cover of this manual. Unautho
rformed by other than the authorized service facilities will void the warranty.
No routine maintenance of the power supply is required except for periodic cleaning. To clean,
disconnect the unit from the AC supply and allow 60 second
s for discharging internal voltage. The front
panel and the metal surfaces should be cleaned using a damp cloth containing a mild solution of
detergent and water. The solution should be applied onto a soft cloth, and not directly to the surface of
. Do not use aromatic hydocarbons or chlorinated solvents for cleaning. Use low pressure
compressed air to blow dust from the unit.
9.4 ADJUSTMENTS AND CALIBRATION
No internal adjustment or calibration is required. There is NO REASON to open the power supp
cover. This will void the warranty.
9.5 PARTS REPLACEMENT AND REPAIRS
As repairs are made only by the manufacturer or by authorized service facilities, no parts replacement
information is provided in the manual. In case of failure, unusual or erratic op
eration of the unit, contact
Lambda Americas Inc. sales or service facility nearest you. Please refer to the TDK
Americas Inc. sales offices addresses lis
ing on the back cover of this user manual.
If the power supply appea
rs to be operating improperly, use the troubleshooting guide to 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 Section 3.8 to d
if the problem is with the supply.
1 provides the basic checks that can be performed to diagnose problems, and references to
Sections of this manual for further information.
Check continuity, replace
Output is present momentarily
but shuts off quickly. The
Does the AC source voltage
sag when load is applied?
Output is present momentarily
but shuts off quickly.The

Output voltage will not adjust.
Front panel CC LED is on.
Output voltage will not adjust
Front panel CV Led is on.
Check if output voltage is
adjusted above OVP setting
will not limit the output.
Output current will not adj
Front panel CV LED is on.
Large ripple present in output.
Is the voltage drop on the
No output. Display indicates
No output. Front panel ALARM
installed adjacent to heat
Front panel CV LED is on.
The front panel controls are
and wait until the display
turns off. Turn on the AC