KEPCO KLN 1500W User manual

KEPCO®
THE POWER SUPPLIER™
MODEL
OPERATOR’S MANUAL
ORDER NO.
KEPCO, INC. 131-38 SANFORD AVENUE FLUSHING, NY. 11355 U.S.A. TEL [phone] FAX [phone]
email: [e-mail] World Wide Web: http://www.kepcopower.com
KEPCO INC.
An ISO 9001 Company.
KLN 750W, 1500W, 3000W
PROGRAMMABLE D-C POWER SUPPLY
LOW PROFILE
KLN 750W, 1500W, 3000W
POWER SUPPLY
©2014, KEPCO, INC
P/N 243-1339-r10a
IMPORTANT NOTES:
1) This manual is valid for the following Firmware Versions:
FIRMWARE VERSION NOTE.
2) A Change Page may be included at the end of the manual. All applicable changes and
revision number changes are documented with reference to the equipment serial num-
bers. Before using this Instruction Manual, check your equipment firmware version num-
ber to identify your model. If in doubt, contact your nearest Kepco Representative, or the
Kepco Documentation Office in New York, [phone], requesting the correct revision
for your particular model and firmware version number.
3) The contents of this manual are protected by copyright. Reproduction of any part can be
made only with the specific written permission of Kepco, Inc.
Data subject to change without notice.
Main Control 1.70 and higher

KLN Series/ 022014 A
OPERATOR
SAFETY INSTRUCTIONS
Read these safety instructions, as well as the applicable installation and operating instructions contained in
this manual before using the power supply.
Do not touch the output terminals. The output is dangerous. Electric shock can cause injury or death.
Do not remove the cover or disassemble the unit. There are no operator serviceable components or
adjustments inside the unit. High voltage components inside the unit can cause serious injury even with
input power disconnected.
Service must be referred to authorized personnel. Using the power supply in a manner not specified by
Kepco. Inc. may impair the protection provided by the power supply. Observe all safety precautions noted
throughout this manual. Table 1-6 lists symbols used on the power supply or in this manual where applica-
ble.
WARNING

KLN Series 022014 i
TABLE OF CONTENTS
SECTION PAGE
SECTION 1 - INTRODUCTION
1.1 Scope of Manual ..................................................................................................................................... 1-1
1.2 General Description................................................................................................................................. 1-1
1.3 Specifications.......................................................................................................................................... 1-2
1.4 Local Control........................................................................................................................................... 1-12
1.5 Remote Control....................................................................................................................................... 1-12
1.6 Analog Control......................................................................................................................................... 1-12
1.7 Features.................................................................................................................................................. 1-12
1.7.1 Digital Calibration............................................................................................................................... 1-12
1.7.2 Protection........................................................................................................................................... 1-12
1.7.3 Saving and Recalling Settings........................................................................................................... 1-12
1.7.4 Parallel and Series Configurations .................................................................................................... 1-12
1.7.5 Miscellaneous Features..................................................................................................................... 1-13
1.8 Equipment Supplied................................................................................................................................ 1-13
1.9 Accessories............................................................................................................................................. 1-14
1.10 Safety...................................................................................................................................................... 1-15
SECTION 2 - INSTALLATION
2.1 Unpacking and Inspection....................................................................................................................... 2-1
2.2 Terminations and Controls ...................................................................................................................... 2-1
2.3 Preliminary Operational Check................................................................................................................ 2-4
2.4 Installation............................................................................................................................................... 2-6
2.4.1 Rack Mounting 750W Models............................................................................................................ 2-6
2.4.1.1 Mounting One 750W 1/2-rack Unit in 19-inch Rack..................................................................... 2-6
2.4.1.2 Mounting Two 750W 1/2-rack Units in 19-inch Rack................................................................... 2-6
2.4.2 Rack Mounting 1500W Models.......................................................................................................... 2-7
2.4.3 Rack Mounting 3000W Models.......................................................................................................... 2-7
2.5 Wiring Instructions................................................................................................................................... 2-7
2.5.1 Safety Grounding............................................................................................................................... 2-7
2.5.2 Source Power Connections............................................................................................................... 2-8
2.5.3 D-C Output Grounding....................................................................................................................... 2-8
2.5.4 Power Supply/Load Interface............................................................................................................. 2-9
2.5.5 Load Connection - General................................................................................................................ 2-9
2.5.6 Load Connection Using Local Sensing.............................................................................................. 2-11
2.5.7 Load Connection Using Remote Sensing.......................................................................................... 2-12
2.6 Cooling .................................................................................................................................................... 2-13
2.7 Setting up the unit ................................................................................................................................... 2-13
2.7.1 Setup for Local Operation.................................................................................................................. 2-13
2.7.2 Setup for Remote Operation via RS-485........................................................................................... 2-13
2.7.3 Setup for Remote Operation via USB)............................................................................................... 2-14
2.7.4 Setup for Remote Operation via GPIB (IEEE 488)............................................................................ 2-14
2.7.5 Setup for Remote Operation via LAN................................................................................................ 2-15
2.8 Multiple Unit Configurations .................................................................................................................... 2-16
2.8.1 Series Connections............................................................................................................................ 2-16
2.8.2 Parallel Connections.......................................................................................................................... 2-18
SECTION 3 - OPERATION
3.1 General.................................................................................................................................................... 3-1
3.2 Power Supply Basics............................................................................................................................... 3-2
3.2.1 Turning the Power Supply On............................................................................................................ 3-4
3.2.2 Menu Structure.................................................................................................................................. 3-6
3.3 Local Mode Operation............................................................................................................................. 3-6
3.3.1 Setting Local/Remote Mode .............................................................................................................. 3-6
3.3.1.1 Front Panel Lockout..................................................................................................................... 3-8
3.3.2 Set Voltage or Overvoltage Protection (OVP)................................................................................... 3-8
3.3.3 Set Current or Overcurrent Protection (OCP).................................................................................... 3-8

ii KLN Series 022014
TABLE OF CONTENTS
SECTION PAGE
3.3.4 OVP/OVC Operation and Recovery.................................................................................................. 3-9
3.3.5 Enabling/Disabling DC Output Power............................................................................................... 3-9
3.3.6 Storing Power Supply Output Settings.............................................................................................. 3-9
3.3.7 Recalling Power Supply Output Settings.......................................................................................... 3-10
3.3.8 Output Mode (Voltage Set: Direct or Enter)...................................................................................... 3-10
3.3.9 Power On Setting.............................................................................................................................. 3-11
3.3.10 Rise Time (Ramp up)........................................................................................................................ 3-11
3.3.11 Fall Time (Ramp Down).................................................................................................................... 3-11
3.3.12 Memory Flag..................................................................................................................................... 3-12
3.3.13 Beep.................................................................................................................................................. 3-12
3.3.14 Display Brightness............................................................................................................................ 3-12
3.3.15 I/O Select.......................................................................................................................................... 3-13
3.3.16 RS-485 Baud Rate............................................................................................................................ 3-13
3.3.17 GPIB Address (GPIB Interface Only)................................................................................................ 3-13
3.3.18 RS-485 Address................................................................................................................................ 3-14
3.3.19 DHCP Function On/Off Control (LAN Interface Only)....................................................................... 3-14
3.3.20 DNS Function On/Off Control (LAN Interface Only).......................................................................... 3-16
3.3.21 Set/View 1st Part of IP Address (LAN Interface Only)...................................................................... 3-16
3.3.22 Set/View 2nd Part of IP Address (LAN Interface Only)..................................................................... 3-17
3.3.23 Set/View 3rd Part of IP Address (LAN Interface Only)...................................................................... 3-17
3.3.24 Set/View 4th Part of IP Address (LAN Interface Only)...................................................................... 3-18
3.3.25 Set/View 1st Part of Subnet Mask Address (LAN Interface Only) .................................................... 3-18
3.3.26 Set/View 2nd Part of Subnet Mask Address (LAN Interface Only) ................................................... 3-19
3.3.27 Set/View 3rd Part of Subnet Mask Address (LAN Interface Only).................................................... 3-19
3.3.28 Set/View 4th Part of Subnet Mask Address (LAN Interface Only) .................................................... 3-19
3.3.29 Set/View 1st Part of Gateway Address (LAN Interface Only)........................................................... 3-20
3.3.30 Set/View 2nd Part of Gateway Address (LAN Interface Only).......................................................... 3-20
3.3.31 Set/View 3rd Part of Gateway Address (LAN Interface Only)........................................................... 3-20
3.3.32 Set/View 4th Part of Gateway Address (LAN Interface Only)........................................................... 3-21
3.3.33 Set/View 1st Part of DNS Address (LAN Interface Only).................................................................. 3-21
3.3.34 Set/View 2nd Part of DNS Address (LAN Interface Only)................................................................. 3-21
3.3.35 Set/View 3rd Part of DNS Address (LAN Interface Only) ................................................................. 3-22
3.3.36 Set/View 4th Part of DNS Address (LAN Interface Only).................................................................. 3-22
3.3.37 Parallel/Serial Master/Slave Setup ................................................................................................... 3-22
3.3.38 External Control of Output On/Off..................................................................................................... 3-23
3.3.39 Enable Voltage Control via Programming Control Port..................................................................... 3-23
3.3.40 Enable Current Control via Programming Control Port..................................................................... 3-23
3.3.41 Calibration Access............................................................................................................................ 3-24
3.3.42 View Serial Number.......................................................................................................................... 3-24
3.3.43 View Main Control Version................................................................................................................ 3-24
3.3.44 View Hardware Version .................................................................................................................... 3-24
3.3.45 View 1st Part of MAC Address (LAN Interface Only)........................................................................ 3-24
3.3.46 View 2nd Part of MAC Address (LAN Interface Only)....................................................................... 3-25
3.3.47 View 3rd Part of MAC Address (LAN Interface Only) ....................................................................... 3-25
3.3.48 Reset................................................................................................................................................. 3-25
3.3.49 IP Address Reset (RST1) ................................................................................................................. 3-26
3.3.50 Viewing Error Codes......................................................................................................................... 3-26
3.4 Series/Parallel Operation........................................................................................................................ 3-26
3.4.1 Series Operation............................................................................................................................... 3-26
3.4.2 Discontinuing Series Operation ........................................................................................................ 3-27
3.4.3 Parallel Operation............................................................................................................................. 3-28
3.4.4 Discontinuing Parallel Operation....................................................................................................... 3-29
3.5 Analog Remote Mode Programming ...................................................................................................... 3-29
3.5.1 Remote Output On/off....................................................................................................................... 3-29
3.5.2 Remote Emergency Shutdown......................................................................................................... 3-29

KLN Series 022014 iii
TABLE OF CONTENTS
SECTION PAGE
3.5.3 Remote Control of Output Voltage Using an analog signal............................................................... 3-30
3.5.4 Remote Control of Output Current Using an analog signal ............................................................... 3-30
3.5.5 Recalling Previously Stored Setting Using Programming Control Port.............................................. 3-30
3.5.6 Monitoring Output Status Using Programming Control Port.............................................................. 3-30
3.5.6.1 Monitor Output Voltage or Current............................................................................................... 3-30
3.5.6.2 Monitor Unit Status ...................................................................................................................... 3-31
3.6 Digital Remote Mode Programming ........................................................................................................ 3-31
3.6.1 RS-485 Operation.............................................................................................................................. 3-31
3.6.2 GPIB Operation (If Option Installed).................................................................................................. 3-31
3.6.2.1 IEEE 488 (GPIB) Bus Protocol .................................................................................................... 3-32
3.6.3 LAN Operation (If Option Installed).................................................................................................... 3-34
3.6.3.1 Network Status............................................................................................................................. 3-35
3.6.3.2 Viewing and/or Changing IP Configuration.................................................................................. 3-35
3.6.3.3 Changing LAN Password............................................................................................................. 3-37
3.6.3.4 Instrument Control ....................................................................................................................... 3-37
3.6.3.5 Operation Via HyperTerminal. ..................................................................................................... 3-38
3.7 SCPI Programming ................................................................................................................................. 3-39
3.7.1 SCPI Messages................................................................................................................................. 3-40
3.7.2 Common Commands/Queries........................................................................................................... 3-40
3.7.3 SCPI Subsystem Command/query Structure .................................................................................... 3-40
3.7.3.1 Calibrate Subsystem.................................................................................................................... 3-40
3.7.3.2 Display Subsystem ...................................................................................................................... 3-40
3.7.3.3 Fetch Subsystem......................................................................................................................... 3-40
3.7.3.4 Output Subsystem ....................................................................................................................... 3-40
3.7.3.5 Source Subsystem....................................................................................................................... 3-40
3.7.3.6 System Subsystem...................................................................................................................... 3-40
3.7.4 Understanding The Command Structure........................................................................................... 3-41
SECTION 4 - CALIBRATION
4.1 General.................................................................................................................................................... 4-1
4.2 Equipment Required................................................................................................................................ 4-1
4.3 Voltage Calibration Procedure ................................................................................................................ 4-1
4.4 Current Calibration Procedure................................................................................................................. 4-3
APPENDIX A - SCPI COMMON COMMAND/QUERY DEFINITIONS
A.2 *CLS — Clear Status Command............................................................................................................ A-1
A.3 *IDN? — Identification Query................................................................................................................. A-1
A.4 *RST — Reset Command...................................................................................................................... A-1
A.5 *TST? — Self Test Query....................................................................................................................... A-1
APPENDIX B - SCPI COMMAND/QUERY DEFINITIONS
B.1 Introduction............................................................................................................................................. B-1
B.2 Numerical Values ................................................................................................................................... B-1
B.3 DISP:CONTrast Command.................................................................................................................... B-1
B.4 DISP:CONTrast? Query ........................................................................................................................ B-2
B.5 FETCh? Query....................................................................................................................................... B-2
B.6 MEASure:ADDRess? Query................................................................................................................. B-2
B.7 MEASure:CURRent? Query.................................................................................................................. B-2
B.8 MEASure:VOLTage? Query.................................................................................................................. B-2

iv KLN Series 022014
TABLE OF CONTENTS
SECTION PAGE
B.9 OUTPut Command................................................................................................................................. B-3
B.10 OUTPut? Query ..................................................................................................................................... B-3
B.11 OUTPut:PON Command........................................................................................................................ B-3
B.12 OUTPut:PON? Query............................................................................................................................. B-3
B.13 OUTPut:PROTection:CLEar Command................................................................................................ B-3
B.14 SOURce:CURRent Command............................................................................................................... B-4
B.15 SOURce:CURRent? Query................................................................................................................... B-4
B.16 SOURce:CURRent:PROtection:LEVel Command............................................................................... B-4
B.17 SOURce:CURRent:PROtection:LEVel? Query.................................................................................... B-4
B.18 SOURce:CURRent:PROtection:STATeCommand.............................................................................. B-4
B.19 SOURce:CURRent:PROtection:STATe? Query................................................................................... B-4
B.20 SOURce:CURRent:PROtection:TRIPped? Query............................................................................... B-5
B.21 SOURce:LIST:DTIMeCommand........................................................................................................... B-5
B.22 SOURce:LIST:DTIMe? Query................................................................................................................ B-5
B.23 SOURce:LIST:RTIMeCommand........................................................................................................... B-5
B.24 SOURce:LIST:RTIMe? Query................................................................................................................ B-5
B.25 SOURce:MEMory:CLS Command......................................................................................................... B-5
B.26 SOURce:MEMory:CURRent:X Command............................................................................................ B-5
B.27 SOURce:MEMory:CURRent:X?Query................................................................................................. B-6
B.28 SOURce:MEMory:LIST:X?Query......................................................................................................... B-6
B.29 SOURce:MEMory:RECall:X Command ................................................................................................ B-6
B.30 SOURce:MEMory:VOLTage:X Command ............................................................................................ B-6
B.31 SOURce:MEMory:VOLTage:X?Query................................................................................................. B-6
B.32 SOURce:VOLTage Command............................................................................................................... B-6
B.33 SOURce:VOLTage? Query ................................................................................................................... B-7
B.34 SOURce:VOLTage:LIMit:LOW Command............................................................................................. B-7
B.35 SOURce:VOLTage:LIMit:LOW?Query................................................................................................. B-7
B.36 SOURce:VOLTage:PROtection:LEVel Command................................................................................ B-7
B.37 SOURce:VOLTage:PROtection:LEVel? Query.................................................................................... B-7
B.38 SOURce:VOLTage:PROtection:TRIPped? Query............................................................................... B-8
B.39 SYSTem:BEEP Command..................................................................................................................... B-8
B.40 SYSTem:BEEP?Query.......................................................................................................................... B-8
B.41 SYSTem:COMMunicate:LAN:DHCP Command................................................................................... B-8
B.42 SYSTem:COMMunicate:LAN:DHCP?Query........................................................................................ B-8
B.43 SYSTem:COMMunicate:LAN:DNS Command...................................................................................... B-8
B.44 SYSTem:COMMunicate:LAN:DNS?Query.......................................................................................... B-9
B.45 SYSTem:COMMunicate:LAN:DNS:AUTO Command........................................................................... B-9
B.46 SYSTem:COMMunicate:LAN:DNS:AUTO?Query............................................................................... B-9
B.47 SYSTem:COMMunicate:LAN:GATEway Command............................................................................ B-9
B.48 SYSTem:COMMunicate:LAN:GATEway? Query................................................................................. B-9
B.49 SYSTem:COMMunicate:LAN:IP Command.......................................................................................... B-9
B.50 SYSTem:COMMunicate:LAN:IP?Query .............................................................................................. B-10
B.51 SYSTem:COMMunicate:LAN:IPADdress Command........................................................................... B-10
B.52 SYSTem:COMMunicate:LAN:IPADdress? Query................................................................................ B-10
B.53 SYSTem:COMMunicate:LAN:MAC?Query.......................................................................................... B-10
B.54 SYSTem:COMMunicate:LAN:RESet Command .................................................................................. B-10
B.55 SYSTem:COMMunicate:LAN:SMAS Command................................................................................... B-10
B.56 SYSTem:COMMunicate:LAN:SMAS?Query........................................................................................ B-11
B.57 SYSTem:COMMunicate:LAN:TELnet:PORT Command...................................................................... B-11
B.58 SYSTem:COMMunicate:LAN:TELnet:PORT?Query........................................................................... B-11
B.59 SYSTem:ERRor? Query........................................................................................................................ B-11
B.60 SYSTem:KLOCkCommand................................................................................................................... B-12
B.61 SYSTem:KLOCk? Query ....................................................................................................................... B-12
B.62 SYSTem:LOCal Command.................................................................................................................... B-13
B.63 SYSTem:REMote Command................................................................................................................. B-13
B.64 SYSTem:VERSion? Query.................................................................................................................... B-13

LIST OF FIGURES
FIGURE TITLE PAGE
KLN Series 022014 v
1-1 KLN Power Supply, Automatic Crossover Characteristics.......................................................................... 1-1
1-2 KLN 750W Power Supply, Outline Drawing................................................................................................ 1-7
1-2 KLN 750W Power Supply, Outline Drawing (two units Mounted in Rack) .................................................. 1-8
1-3 KLN 1500W Power Supply, Outline Drawing sd......................................................................................... 1-10
1-4 KLN 3000W Power Supply, Outline Drawing.............................................................................................. 1-11
2-1 KLN 750W Series Rear Panel .................................................................................................................... 2-1
2-2 KLN 1500W Series Rear Panel .................................................................................................................. 2-1
2-3 KLN 3000W Series Rear Panel .................................................................................................................. 2-1
2-4 LAN Ethernet Connector (LAN Interface only)............................................................................................ 2-2
2-5 RS-485 Port ................................................................................................................................................ 2-2
2-6 Programming Control Port .......................................................................................................................... 2-4
2-7 Mounting One KLN 750W Unit in 19-inch Rack.......................................................................................... 2-6
2-8 Load Connection Terminals for 750W Models............................................................................................ 2-9
2-9 Load Connection Terminals for 1500W Models.......................................................................................... 2-10
2-10 Load Connection Terminals for 3000W Models.......................................................................................... 2-10
2-11 Load Connections, Local Sensing .............................................................................................................. 2-11
2-12 Load Wire Voltage Drop, Equivalent Schematic Diagram........................................................................... 2-12
2-13 Load Connections, Remote Sensing .......................................................................................................... 2-12
2-14 RS-485 Connections................................................................................................................................... 2-14
2-15 USB Connections........................................................................................................................................ 2-14
2-16 GPIB Connections ...................................................................................................................................... 2-15
2-17 LAN Connections........................................................................................................................................ 2-15
2-18 Series Connections..................................................................................................................................... 2-16
2-19 Optional Series Connector Board ............................................................................................................... 2-17
2-20 Programming Control Port Connections for Series Operation.................................................................... 2-17
2-21 Parallel Connections................................................................................................................................... 2-18
2-22 Optional Parallel Connector Board ............................................................................................................. 2-19
2-23 Programming Control Port Connections for Parallel Operation.................................................................. 2-19
3-1 KLN 750W Series Front Panel.................................................................................................................... 3-2
3-2 KLN 1500W Series Front Panel.................................................................................................................. 3-2
3-3 KLN 3000W Series Front Panel.................................................................................................................. 3-2
3-4 7-Segment Display Characters................................................................................................................... 3-4
3-5 View/Set Address Commands used with DHCP and DNS Functions......................................................... 3-15
3-6 Remote Control Using Programming Control Port and Optocoupler or Relay............................................ 3-29
3-7 Programming Control Port Status Monitoring ............................................................................................. 3-31
3-8 KLN Instrument Welcome Page.................................................................................................................. 3-34
3-9 Network Status Page .................................................................................................................................. 3-35
3-10 Log In Screen.............................................................................................................................................. 3-35
3-11 Network Configuration Page....................................................................................................................... 3-36
3-12 Change Password Screen .......................................................................................................................... 3-37
3-13 Instrument Control Page............................................................................................................................. 3-37
3-14 Open HyperTerminal Connection ............................................................................................................... 3-38
3-15 Hyper terminal Properties........................................................................................................................... 3-38
3-16 Hyper terminal ASCII Setup........................................................................................................................ 3-39
3-17 Tree Diagram of SCPI Commands Used with KLN Power Supply ............................................................. 3-41
4-1 Calibration Setup ........................................................................................................................................ 4-2

vi KLN Series SVC 022014
LIST OF TABLES
TABLE TITLE PAGE
1-1 KLN Series Model Parameters ...................................................................................................................1-2
1-2 KLN General Specifications .......................................................................................................................1-3
1-3 Equipment Supplied ...................................................................................................................................1-13
1-4 Accessories ................................................................................................................................................1-14
1-5 Safety Symbols ..........................................................................................................................................1-15
2-1 Rear Panel Connector Functions ...............................................................................................................2-2
2-2 RS-485 Port Input/Output Pin Assignments ...............................................................................................2-2
2-3 GPIB (IEEE 488) Port Input/Output Pin Assignments ................................................................................ 2-3
2-4 Programming Control Port I/O Pin Assignments ........................................................................................2-3
2-5 Maximum Load Wire Length for Voltage drop less than 1V .......................................................................2-12
3-1 Front Panel Controls and Indicators ...........................................................................................................3-3
3-2 Factory Defaults .........................................................................................................................................3-5
3-3 Menu Functions ..........................................................................................................................................3-7
3-4 IEEE 488 (GPIB) Bus Interface Functions .................................................................................................3-32
3-5 IEEE 488 (GPIB) Bus Command Mode Messages ....................................................................................3-33
3-6 IEEE 488 (GPIB) Bus Data Mode Messages .............................................................................................3-33
3-7 VISA Resource String Corresponding to Interface .....................................................................................3-39
A-1 IEEE 488.2 Command/query Index ............................................................................................................A-1
B-1 SCPI Subsystem Command/query Index ...................................................................................................B-1
B-2 Error Codes ................................................................................................................................................B-11

KLN Series 022014 1-1
SECTION 1 - INTRODUCTION
1.1 SCOPE OF MANUAL
This manual contains instructions for the installation and operation of the KLN series of 750,
1500W, and 3000W Watt programmable, voltage and current stabilized d-c power supplies,
hereafter referred to as KLN, from Kepco, Inc., Flushing, New York, U.S.A.
1.2 GENERAL DESCRIPTION
KLN Series power supplies are voltage and current stabilized d-c sources with a sharp cross-
over between the constant voltage and constant current mode of operation. Thirty-nine models
are offered, 13 in each power grouping, with rated d-c output voltage ranging from 6V to 600V
and rated d-c output current ranging from 1.25A to 400A (see Table 1-1).
KLN switching power supplies operate from wide range 100-240V a-c (190-240V a-c for
3000W), 50/60 Hz input source power and employ active power factor correction (PFC). Since
there are no internal adjustments, KLN Power Supplies offer excellent output voltage/current
stability and easy calibration.
Output voltage and current are displayed on independent LED displays. Control of the KLN can
be either local, via the front panel controls and displays, or remote, using 1) either analog sig-
nals (applied to the Programming Control Port), or 2) digital programming. Digital programming
of standard models is via RS-485 communication bus. Optional IEEE 488.2 (GPIB) and LAN
interfaces are also available.
KLN output and readback are high resolution: 16 bits D/A to set output voltage and current, 24
bits A/D for readback of output voltage and current. These units feature a low temperature coef-
ficient: Constant Voltage mode: 100ppm/°C, Constant Current mode: 100ppm/°C, and built-in
remote sensing with a maximum compensation of 5V voltage drop across power lines.
The KLN series is suitable for ATE automatic test, burn- in test and other applications that
require lots of testing power.
The KLN power supply acts as a constant voltage source for comparatively large values of load
resistance, and as a constant current source for comparatively small values of load resistance.
The transition between these two modes of operation occurs automatically at a “critical” or
“crossover” value of load resistance Rc = Es/Is, where Es is the voltage control setting and Is
is the current control setting (see Figure 1-1).
FIGURE 1-1. KLN POWER SUPPLY, AUTOMATIC CROSSOVER CHARACTERISTICS

1-2 KLN Series 022014
1.3 SPECIFICATIONS
Table 1-1 below indicates parameters that vary for different KLN models; Table 1-2 lists general
specifications that apply to all KLN models.
TABLE 1-1. KLN SERIES MODEL PARAMETERS
Model
(8)(9)(11)(12)
d-c Output Range Ripple(3) Line Regulation(5)(10) Load Regulation(10) Response Time(7) Remote
Sense
Voltage
drop
(max.)
Constant
Voltage
(CV)(1)
Constant
Current
(CC)(2) CV CC(4) CV CC CV(6) CC(6) Full
Load
Up
Full
Load
Down
No
Load
Down
V d-c A d-c mV
rms mA rms 0.05% +mV 0.1% +mA 0.05% +mV 0.1% +mA Sec Sec Sec V
750W 1U Half Rack Models
KLN 6-100 0 to 6 0 to 100 10 180 2.8 11 2.8 23 0.08 0.05 0.6 1
KLN 8-90 0 to 8 0 to 90 10 180 2.8 11 2.8 23 0.08 0.05 0.6 1
KLN 12.5-60 0 to 12.5 0 to 60 10 120 4 8.5 4 18 0.08 0.05 0.8 1
KLN 20-38 0 to 20 0 to 38 10 76 4 5.8 4 12.6 0.08 0.05 0.8 1
KLN 30-25 0 to 30 0 to 25 10 63 5 4.5 5 10 0.08 0.08 0.9 1.5
KLN 40-19 0 to 40 0 to 19 10 48 6 3.9 6 8.8 0.08 0.08 1 2
KLN 50-15 0 to 50 0 to 15 10 43 8 3.6 8 8.2 0.08 0.08 1.1 2
KLN 60-12.5 0 to 60 0 to 12.5 10 38 8 3.25 8 7.5 0.08 0.08 1.1 3
KLN 80-9.5 0 to 80 0 to 9.5 10 29 10 2.95 10 6.9 0.15 0.15 1.2 4
KLN 100-7.5 0 to 100 0 to 7.5 10 23 12 2.75 12 6.5 0.15 0.15 1.5 5
KLN 150-5 0 to 150 0 to 5 16 18 17 2.5 17 6 0.15 0.15 2 5
KLN 300-2.5 0 to 300 0 to 2.5 25 13 32 2.25 32 5.5 0.15 0.15 3 5
KLN 600-1.25 0 to 600 0 to 1.25 75 8 62 2.13 62 5.26 0.25 0.3 4 5
1500W 1U Full Rack Models
KLN 6-200 0 to 6 0 to 200 15 360 2.8 18.5 2.8 38 0.08 0.05 0.6 1
KLN 8-180 0 to 8 0 to 180 15 360 2.8 18.5 2.8 38 0.08 0.05 0.6 1
KLN 12.5-120 0 to 12.5 0 to 120 15 248 3.4 14.5 4 28 0.08 0.05 0.8 1
KLN 20-76 0 to 20 0 to 76 15 152 4 9.6 4 20.2 0.08 0.05 0.8 1
KLN 30-50 0 to 30 0 to 50 15 125 5 7 5 15 0.08 0.08 0.9 1.5
KLN 40-38 0 to 40 0 to 38 15 95 6 5.8 6 12.6 0.08 0.08 1 2
KLN 50-30 0 to 50 0 to 30 15 85 7 5.2 7 11.4 0.08 0.08 1.1 2
KLN 60-25 0 to 60 0 to 25 15 75 8 4.5 8 10 0.08 0.08 1.1 3
KLN 80-19 0 to 80 0 to 19 15 57 10 3.9 10 8.8 0.15 0.15 1.2 4
KLN 100-15 0 to 100 0 to 15 15 45 12 3.5 12 8 0.15 0.15 1.5 5
KLN 150-10 0 to 150 0 to 10 24 45 12 3.5 12 8 0.15 0.15 2 5
KLN 300-5 0 to 300 0 to 5 38 25 32 2.5 32 6 0.15 0.15 3 5
KLN 600-2.5 0 to 600 0 to 2.5 113 15 62 2.26 62 5.5 0.25 0.3 4 5
NOTES:
1. Actual output voltage should be 0.1% of rated voltage when output voltage is set to zero.
2. Actual output current should be 0.2% of the rated current when output current is set to zero (resistive load).
3. Measured when output is within 10%-100% of rated value; ripple bandwidth: 300kHz (rms), noise bandwidth: <20MHz (p-p).
4. For 6V model: measured when output voltage 2-6V and rated current; all other models measured when output 10-100% of rated voltage and rated
current.
5. Input voltage 100-240V a-c (190-240V a-c for 3000W models), 50/60Hz, constant load.
6. Constant input voltage and output from no load to full load.
7. With rated input, resistive load.
8. Rated power output with input 115V or 230V a-c
9. Specifications met after 30 minutes ofoperation, ambient temperature 23±5°C, humidity under 80% R. H, nominal a-c input voltage ±5%, THD 2%,
not using the remote compensation, not operating in series or parallel.
10. For example, the spec for KLN 6-100 line regulation and load regulation in CV mode is 0.05% + 2.8mV (or 6 x 0.0005 = 3mV +2.8mV =5.8mV).
11. Add G suffix for models with optional GPIB interface, add E suffix for optional LAN interface.
12. Specifications subject to change without notice.

KLN Series 022014 1-3
3000W 2U Full Rack Models
KLN 6-400 0 to 6 0 to 400 23 1000 2.8 42 6.2 85 0.08 0.02 0.5 1
KLN 8-360 0 to 8 0 to 360 23 1000 2.8 42 6.2 85 0.08 0.02 0.5 1
KLN 12.5-240 0 to 12.5 0 to 240 23 800 3.2 29 7.1 60 0.08 0.1 0.8 1
KLN 20-150 0 to 20 0 to 150 23 600 4 18.5 8 38 0.08 0.1 0.8 1
KLN 30-100 0 to 30 0 to 100 23 310 5 13 9.5 27 0.08 0.16 0.9 1.5
KLN 40-76 0 to 40 0 to 76 23 250 6 10.5 11 22 0.08 0.16 1 2
KLN 50-60 0 to 50 0 to 60 23 200 7 9 13 19 0.08 0.16 1.1 2
KLN 60-50 0 to 60 0 to 50 23 150 8 7.5 14 16 0.08 0.16 1.1 3
KLN 80-38 0 to 80 0 to 38 23 110 10 6.2 17 13.4 0.15 0.3 1.2 4
KLN 100-30 0 to 100 0 to 30 23 90 12 5.3 20 11.6 0.15 0.3 1.5 5
KLN 150-20 0 to 150 0 to 20 36 90 17 4.2 27.5 9.4 0.15 0.3 2 5
KLN 300-10 0 to 300 0 to 10 57 50 32 3.1 50 7.2 0.15 0.3 3.5 5
KLN 600-5 0 to 600 0 to 5 170 30 62 2.55 95 6.1 0.25 0.5 4 5
NOTES:
1. Actual output voltage should be 0.1% of rated voltage when output voltage is set to zero.
2. Actual output current should be 0.2% of the rated current when output current is set to zero (resistive load).
3. Measured when output is within 10%-100% of rated value; ripple bandwidth: 300kHz (rms), noise bandwidth: <20MHz (p-p).
4. For 6V model: measured when output voltage 2-6V and rated current; all other models measured when output 10-100% of rated voltage and rated
current.
5. Input voltage 100-240V a-c (190-240V a-c for 3000W models), 50/60Hz, constant load.
6. Constant input voltage and output from no load to full load.
7. With rated input, resistive load.
8. Rated power output with input 115V or 230V a-c
9. Specifications met after 30 minutes ofoperation, ambient temperature 23±5°C, humidity under 80% R. H, nominal a-c input voltage ±5%, THD 2%,
not using the remote compensation, not operating in series or parallel.
10. For example, the spec for KLN 6-100 line regulation and load regulation in CV mode is 0.05% + 2.8mV (or 6 x 0.0005 = 3mV +2.8mV =5.8mV).
11. Add G suffix for models with optional GPIB interface, add E suffix for optional LAN interface.
12. Specifications subject to change without notice.
TABLE 1-2. KLN GENERAL SPECIFICATIONS
SPECIFICATION RATING/DESCRIPTION
INPUT CHARACTERISTICS
Input voltage 750W, 1500W:
3000W:
100~240Vac, 50/60Hz
127V~373V d-c (1)
190~240Vac, 50/60Hz
254V~370V d-c (1)
Input current (Full load) 750W:
1500W:
3000W:
115Vac - 8.1A; 230V a-c - 4.1A
115Vac - 16.2A; 230V a-c - 8.1A
230V a-c - 15.6A
Inrush current 750W:
1500W:
3000W:
230Vac - 12.5A
230Vac - 25A
230Vac - 50A
Power Factor (PF)
Typical 750W,1500W: 3000W: 0.99 (at 115V a-c, rated output) 0.99 (at 230V a-c, rated output)
(1) Connect (+) to L and (–) to N. Safety agency approvals apply to a-c input operation only.
TABLE 1-1. KLN SERIES MODEL PARAMETERS (CONTINUED)
Model
(8)(9)(11)(12)
d-c Output Range Ripple(3) Line Regulation(5)(10) Load Regulation(10) Response Time(7) Remote
Sense
Voltage
drop
(max.)
Constant
Voltage
(CV)(1)
Constant
Current
(CC)(2) CV CC(4) CV CC CV(6) CC(6) Full
Load
Up
Full
Load
Down
No
Load
Down
V d-c A d-c mV
rms mA rms 0.05% +mV 0.1% +mA 0.05% +mV 0.1% +mA Sec Sec Sec V

1-4 KLN Series 022014
OUTPUT CHARACTERISTICS
Type of Stabilizer Constant Voltage (CV)/Constant Current (CC),
automatic crossover
Adjustment Range Voltage:
Current: 0 to 100% of rated voltage 0 to 100% of rated current
Protective functions Programmable overvoltage (OVP),
Programmable overcurrent (OCP),
Overtemperature (OTP),
Fuse blown
Protection setting range Overvoltage:
Overcurrent: 0% to 110% of rated voltage 0% to 110% of rated current
Remote Error Sense Compensation 5V max. (See Table 1-1.)
Parallel Operation Up to 5 units maximum, automatic load sharing
Current sharing tolerance: 1% at rated current, 5% at 50% of rated current, 10% at
less than 10% of rated current
Series Operation 2 units maximum (total voltage must not exceed 600V)
Temperature Coefficient Constant Voltage Mode,
Constant Current Mode: 100ppm/°C of rated output voltage or current, after 30 min- ute warm-up
Time (Drift) Constant Voltage Mode,
Constant Current Mode: 0.05% of rated output voltage or current over 8hrs interval following 30 minutes warm-up. Constant line, load and tem-
perature.
Transient response time Constant Voltage mode: 20V and under: 1.5ms;
30V~100V: 1ms
150V~600V: 2ms
Hold-up time 20ms
Efficiency 750W:
1500W:
3000W:
76% – 87%
77% – 88%
82% – 88%
Isolation Voltage Input - Outputs:
Input - Ground:
Output - Ground (6V-150V)
Output - Ground (300V-600V)
2000V a-c: 1 minute
2000V a-c: 1 minute
350V d-c, leakage current: 100A
1200V d-c, leakage current: 100A
PROGRAMMING CHARACTERISTICS - LOCAL
Display resolution Voltage and Current: 4 digits (setting and display)
Display setting accuracy Voltage:
Current: ±0.1% ± 3C(2) at rated voltage ±0.5% ± 3C(2) at rated current
Display reading accuracy Voltage:
Current: ±0.2% ± 3C(2) at rated voltage ±0.5% ± 3C(2) at rated current
(2) C = 1 count of the last displayed digit.
TABLE 1-2. KLN GENERAL SPECIFICATIONS (CONTINUED)
SPECIFICATION RATING/DESCRIPTION

KLN Series 022014 1-5
PROGRAMMING CHARACTERISTICS - DIGITAL
Command setting resolution ±0.002% of full scale
Command reading resolution ±0.002% of full scale
Command and D/A
setting accuracy Voltage: Current: ±0.1% ± 3C(3) at rated voltage ±0.5% ± 3C(3) at rated current
Command and A/D
Measurement accuracy Voltage: Current: ±0.2% ± 2C(3) at rated voltage (Average Measurement) ±0.5% ± 3C(3) at rated current (Average Measurement)
Command response time 20ms (After received)(4)
RS-485 Digital Interface
(standard) Baud rate: Select 4.8K, 9.6K, 19.2K, 38.4K, 57.6K, or 115K (max)
Max number of units
connected to bus: 254
Max. effective control distance: 1000 meters.
GPIB Digital Interface Optional
LAN Digital Interface Optional
PROGRAMMING CHARACTERISTICS - ANALOG
Analog setting accuracy
Constant Voltage mode (CV): Voltage:
Current: ± 5% ± 5%
Constant Current mode (CC): Voltage:
Current: ± 5% ± 5%
Analog monitor accuracy Rated voltage output: 10.00V ± 0.25V
Zero voltage output: 0.00V ± 0.25V
Rated current output: 10.00V ± 0.25V
Zero current output: 0.00V ± 0.25V
PHYSICAL CHARACTERISTICS
Weight 750W:
1500W:
3000W:
Less than 11.2 lbs (5.1 Kg)
Less than 19.84 lbs (9.0 Kg)
Less than 33.3 lbs (15.1 Kg)
Dimensions 750W:
1500W:
3000W:
8.46"W x 1.73"H x 18.5"D (215mm x 44mm x 470mm)
See Figure 1-2
16.93"W x 1.73H x 18.5"D (430mm x 44mm x 470mm)
See Figure 1-3
16.93"W x 3.46"H x 18.5"D (430mm x 88mm x 470mm)
See Figure 1-4
Source Power Connector 750W:
1500W, 3000W: IEC 320 inlet 3-position terminal block
Load Connections 6V to 100V:
150V to 600V (750W):
150V to 600V (1500W, 3000W):
± bus bars with protective cover
5-position Euroblock
4-position terminal block
(2) C = 1 count of the last displayed digit.
(3) Programming time = Command response time + Output response time. The output response time differs for different models,
see Table 1-1. The analog programming input signal goes directly to the analog circuitry, so there is no command response
time delay for analog programming.
TABLE 1-2. KLN GENERAL SPECIFICATIONS (CONTINUED)
SPECIFICATION RATING/DESCRIPTION

1-6 KLN Series 022014
PHYSICAL CHARACTERISTICS - CONTINUED
Programming Control port 26-pin connector
SER IN port 2-position Euroblock (mating connector supplied)
Sense port 3-position Euroblock (mating connector supplied)
RS-485 port 3-position Euroblock (mating connector supplied)
LAN port (optional) RJ 45 connector
GPIB port (optional) Standard IEEE 488.2 GPIB connector
GENERAL (ENVIRONMENTAL) SPECIFICATIONS
Temperature Operating:
Storage: 0 to 50°C (indoor use) -20 to 70°C
Humidity Operating:
Storage: 30%~90% RH (no condensation) 10%~90% RH (no condensation)
Altitude 3000m max
Cooling Speed-Controlled Fans
Noise <70 dB (A)
EMC Standard EN 61326-1:2006
EMC Emissions (EN 61326-1) Conducted Disturbance: EN 55011:2007 +A2:2007 Class B
Radiated Disturbance: EN 55011:2007 +A2:2007 Class B
Harmonic Distortion: EN 61000-3-2:2006 Class A
Voltage Fluctuations
and Flicker: EN 61000-3-3:2008 Section 5
EMC Immunity (EN 61326-1) Electrostatic Discharge (ESD): EN 61000-4-2:2009 Class B
Radiated RF Magnetic Field: EN 61000-4-3:2006 + A1:2008 + A2:2010 Class A
Electrical Fast Transients and
Bursts: EN 61000-4-4:2004 + A1:2010 Class B
Surge: EN 61000-4-5:2006 Class B
Conducted Disturbance
Induced by RF Fields: EN 61000-4-6:2009, Class A
Voltage Dips and Short
Interruptions: EN 61000-4-11:2004, Class C
Vibration Testing (1 hour) Frequency:
Acceleration:
PSD (Power Spectral Density:
Test Axis:
1Hz to 200Hz
1.146g rms
0.0001g2/Hz (1 Hz), 0.01g2/Hz (4 Hz, 100 Hz), 0.001g2/Hz
(200 Hz)
X/Y/-Z (10 mins.), +Z (30 mins.)
NOTE:
All specifications apply after power on for 30 minutes, ambient temperature: 23±5°C, Humidity: under 80% RH, AC Voltage: ±5%,
Frequency: ±5%.
TABLE 1-2. KLN GENERAL SPECIFICATIONS (CONTINUED)
SPECIFICATION RATING/DESCRIPTION

KLN Series 022014 1-7
FIGURE 1-2. KLN 750W POWER SUPPLY, OUTLINE DRAWING

1-8 KLN Series 022014
FIGURE 1-2. KLN 750W POWER SUPPLY, OUTLINE DRAWING (TWO UNITS MOUNTED IN RACK)
(SHEET 1 OF 2)

KLN Series 022014 1-9
FIGURE 1-2. KLN 750W POWER SUPPLY, OUTLINE DRAWING (SHEET 2 OF 2)
NOTE: 150V MODELS SHOWN.

1-10 KLN Series 022014
FIGURE 1-3. KLN 1500W POWER SUPPLY, OUTLINE DRAWING SD