Argantix KDC 30-167 User manual

Revision H
February 2007
Copyright 2003-2007
By California Instruments
All rights reserved.
P/N 5005-966
KDC Series
DC Power Supply
User Manual
Series II
TEL: [phone]
FAX: [phone]
Email: [email protected]
Web Site: http://www.argantix.com

User Manual
User Manual
P/N 5005-966
DC Power Supplies
Argantix
KDC Series II
Copyright 2003-2007, California Instruments, Rev H
Argantixis a registered trademark of California Instruments Corporation.
Specifications subject to change without notice.
KDC Series II DC Power Supplies i

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SAFETY SUMMARY
This power supply contains high voltage and current circuits that are potentially lethal.
Because of its size and weight, electrical and mechanical stability must be ensured. The
following safety guidelines must be followed when operating or servicing this equipment.
These guidelines are not a substitute for vigilance and common sense. If this power
supply is not used as specified in this manual, the protection provided by this equipment
may be impaired. California Instruments assumes no liability for the customer's failure to
comply with these requirements.
BEFORE APPLYING POWER
1. Check the units input rating on the type label and verify the correct voltage is applied to the
unit (for example 208 V L-L, 3 Phase).
2. The chassis and cabinet of this power supply must be grounded to minimize shock hazard.
A chassis ground is provided at the input terminal block. This is located at the back of the
cabinet on the lower right hand side (looking at the back of the unit). The chassis ground
must be connected to an electrical ground through an insulated wire (green/yellow) of
sufficient gauge.
3. The KDS Series power supplies do not have internal AC mains disconnect. Instead,
protection is provided by fuses. The on/off button only engages or disengages the bias
supplies, it does not disconnect the AC mains to the unit. It is strongly recommended to
use a suitably rated circuit breaker or mains disconnect device with branch
protection rating per local electrical codes between point of connection and the KDS
unit AC input to enable complete disconnection of AC input power.
FUSES
Use only fuses of the specified current, voltage, and protection speed.
DO NOT OPERATE IN A VOLATILE ATMOSPHERE
Do not operate the power supply in the presence of flammable gases or fumes. This product is
designed to operate in a controlled environment. Do not expose to rain or snow.
DO NOT TOUCH ENERGIZED CIRCUITS
Disconnect the power cable before servicing this equipment. Even with the power cable
disconnected, high voltage can still exist on some circuits. Discharge these voltages before
servicing. Only qualified service personnel may remove covers, replace components or make
adjustments.
DO NOT SERVICE ALONE
Do not remove covers, replace components, or make adjustments unless another person, who
can administer first aid, is present.
DO NOT EXCEED INPUT RATINGS
Do not exceed the rated input voltage or frequency. Additional hazards may be introduced
because of component failure or improper operation.
DO NOT MODIFY INSTRUMENT OR SUBSTITUTE PARTS
Do not modify this instrument or substitute parts. Additional hazards may be introduced because
of component failure or improper operation.
MOVING THE POWER SUPPLY
When moving the power supply, observe the following:
1. Remove all AC power to unit.
2. Use two people to prevent injury.
SURFACE STABILITY
Operate the power supply only on a level surface.
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Electrical Safety Symbols Used in This Manual
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WARRANTY INFORMATION
CALIFORNIA INSTRUMENTS CORPORATION warrants each instrument manufactured by
them to be free from defects in material and workmanship for a period of five years from the
date of shipment to the original purchaser. Excepted from this warranty are fuses and
batteries that carry the warranty of their original manufacturer where applicable.
CALIFORNIA INSTRUMENTS will service, replace, or adjust any defective part or parts, free
of charge, when the instrument is returned freight both ways prepaid, and when examination
reveals that the fault has not occurred because of misuse, abnormal conditions of operation,
user modification, or attempted user repair. Equipment repaired beyond the effective date of
warranty or when abnormal usage has occurred will be charged at applicable rates.
CALIFORNIA INSTRUMENTS will submit an estimate for such charges before commencing
repair, if so requested.
SERVICE PROCEDURE
If a fault develops, notify CALIFORNIA INSTRUMENTS at [email protected] or its local
representative, giving full details of the difficulty, including the model number and serial
number. On receipt of this information, service information or a Return Material
Authorization (RMA) number will be given. Add the RMA number furnished to the shipping
label. Pack the instrument carefully to prevent transportation damage, affix label to shipping
container, and ship freight prepaid to the factory. CALIFORNIA INSTRUMENTS shall not be
responsible for repair of damage due to improper handling or packing. Instruments returned
without RMA No. or freight collect may be refused at California Instruments discretion. All
Argantix products repaired will be returned freight collect, Ex Works CALIFORNIA
INSTRUMENTS, 9689 Towne Centre Drive, San Diego, CA 92121-1964. If requested, an
estimate of repair charges will be made before work begins on repairs not covered by the
Warranty.
DAMAGE IN TRANSIT
The instrument should be tested when it is received. If it fails to operate properly, or is
damaged in any way, a claim should be filed immediately with the carrier. The claim agent
should obtain a full report of the damage, and a copy of this report should be forwarded to us
by fax or email (Fax: [phone], Email: [email protected]). CALIFORNIA
INSTRUMENTS will prepare an estimate of repair cost and repair the instrument when
authorized by the claim agent. Please include model number and serial number when
referring to the instrument.
SPARE PARTS
To order spare parts, user manuals, or determine the correct replacement part for your
Argantix products, please contact the Customer Service department by phone at + 1 858
404 6936, press 2 or by email [email protected].
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Table of Contents
1Introduction .................................................................................................................................... 1
1.1 General Description ...............................................................................................................................1
1.2 KDC Controllers Series I versus Series II ..............................................................................................2
1.3 Bench Top use ......................................................................................................................................2
1.4 Equipment Rack use..............................................................................................................................2
2Specifications ................................................................................................................................. 3
2.1 Electrical ................................................................................................................................................3
2.2 Measurements.......................................................................................................................................5
2.3 Environmental........................................................................................................................................5
2.4 Mechanical ............................................................................................................................................6
2.5 Agency Approvals..................................................................................................................................6
2.6 Remote Control Interfaces.....................................................................................................................6
2.7 Analog Monitor Outputs .........................................................................................................................7
2.8 Protection ..............................................................................................................................................7
2.9 Controls and Indicators..........................................................................................................................7
2.10 Parallel Operation ..............................................................................................................................8
2.11 Available Options and Accessories....................................................................................................9
2.12 -LC Option .......................................................................................................................................10
2.13 -FT Option .......................................................................................................................................10
3Installation and Functional Test ................................................................................................... 11
3.1 Inspection ............................................................................................................................................11
3.2 Location and Mounting ........................................................................................................................11
3.3 Input / Output Connectors....................................................................................................................12
3.4 Wire Sizing and Lug Size.....................................................................................................................17
3.5 AC Input Wiring....................................................................................................................................18
3.6 Analog Controls (-IF Option)................................................................................................................20
4Front Panel Operation.................................................................................................................. 21
4.1 Functional Controls..............................................................................................................................21
4.2 Menu Structure ....................................................................................................................................27
4.3 How to examples... ..............................................................................................................................49
4.4 Programming output transient lists ......................................................................................................51
4.5 Setting the Power-on Initialization Values............................................................................................53
4.6 Mode Status ........................................................................................................................................54
4.7 Remote Sensing ..................................................................................................................................56
4.8 Remote Output ON / OFF Control .......................................................................................................57
5Operating Modes ......................................................................................................................... 58
5.1 External Programming Modes .............................................................................................................58
5.2 Multi Unit Configurations......................................................................................................................63
6Principle of Operation .................................................................................................................. 71
6.1 General................................................................................................................................................71
6.2 Overall Description ..............................................................................................................................71
6.3 Bias Power Supply (A7) .......................................................................................................................71
6.4 Power Module (A9 through A11)..........................................................................................................76
6.5 Controller Module (A3).........................................................................................................................78
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7Calibration.................................................................................................................................... 81
7.1 Calibration Equipment ......................................................................................................................... 81
7.2 Calibration Password .......................................................................................................................... 82
7.3 Routine Calibration.............................................................................................................................. 83
7.4 Output Calibration ............................................................................................................................... 84
7.5 Measurement Calibration .................................................................................................................... 87
7.6 Non-Routine Calibration ...................................................................................................................... 89
8Service ......................................................................................................................................... 91
8.1 General ............................................................................................................................................... 91
8.2 Basic Operation................................................................................................................................... 91
8.3 Module Removal ................................................................................................................................. 94
8.4 Controller Jumper Settings.................................................................................................................. 97
8.5 Firmware Updates ............................................................................................................................... 97
8.6 Replaceable Parts ............................................................................................................................. 100
8.7 Available accessories........................................................................................................................ 101
9Remote Control.......................................................................................................................... 103
9.1 Introduction ....................................................................................................................................... 103
9.2 KDCGUI Program Requirements ...................................................................................................... 104
9.3 RS232C Interface.............................................................................................................................. 104
9.4 Optional IEEE Interface..................................................................................................................... 106
9.5 KDCGUI Installation ......................................................................................................................... 106
9.6 Trouble Shooting - RS232C .............................................................................................................. 107
9.7 Trouble Shooting - IEEE-488 / GPIB ................................................................................................. 108
9.8 Software Registration ........................................................................................................................ 108
10 Programming Syntax.............................................................................................................. 109
11 Options ................................................................................................................................... 110
11.1 Introduction ................................................................................................................................... 110
11.2 MIL704 Option............................................................................................................................... 111
Appendix A: Error Messages ............................................................................................................ 119
Index.................................................................................................................................................. 123
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List of Figures
Figure 1-1: KDC Series DC Power Supply.............................................................................................................1
Figure 3-1: Location of rear panel connectors .....................................................................................................16
Figure 3-2: DC Output bus bar studs...................................................................................................................17
Figure 3-4: Toroid Installation, -400V input model. ..............................................................................................18
Figure 3-5: Outline Drawing Chassis Dimensions (Shown with safety covers) ....................................................19
Figure 4-1: Front Panel View ...............................................................................................................................21
Figure 4-2: Shuttle Knobs ....................................................................................................................................22
Figure 4-3: Front panel layout..............................................................................................................................23
Figure 4-4: Keypad layout....................................................................................................................................24
Figure 4-5: Display and Shuttle Knobs interaction ...............................................................................................25
Figure 4-6: Sample Transient Output Sequence .................................................................................................52
Figure 4-7: Constant Power Mode Profile............................................................................................................55
Figure 4-8: Remote Sensing Operation at the Load ............................................................................................56
Figure 4-9: Remote On / Off Control by Contact Closure ....................................................................................57
Figure 4-10: Remote On / Off Using Isolated TTL/CMOS Voltage Supply...........................................................57
Figure 5-1: Remote Voltage Programming Using 0-5 or 0-10 VDC Source.........................................................58
Figure 5-2: Remove Voltage Programming Using Resistance.............................................................................60
Figure 5-3: Remote Voltage Programming Using a Current Source ....................................................................60
Figure 5-4: Remote Current Programming Using 0-5 or 0-10 VDC Source .........................................................61
Figure 5-5: Remote Current Programming Using Resistance..............................................................................62
Figure 5-6: Remote Current Programming Using a Current Source ....................................................................62
Figure 5-7: Parallel Cable Interconnect Accessory..............................................................................................64
Figure 5-8: Auto-Parallel Operation – 2 KDC units ..............................................................................................67
Figure 5-9: Auto-Parallel Operation – 3 KDC units ..............................................................................................68
Figure 5-10: Auto-Series Operation.....................................................................................................................69
Figure 5-11: Auto Tracking Operation .................................................................................................................70
Figure 6-1: DC Power Supply Block Diagram ......................................................................................................73
Figure 6-2: DC Power Supply Block Diagram with -IF option...............................................................................74
Figure 6-3: KDC with -IF option, Simplified Block Diagram..................................................................................75
Figure 6-4: DC Module Block Diagram ................................................................................................................77
Figure 7-1: Test Equipment Hookup for Routine Output and Measurement Calibration ......................................83
Figure 8-1: Assembly Location ............................................................................................................................94
Figure 8-2: Replaceable Fuse Locations ...........................................................................................................102
Figure 9-1: KDCGUI Main screen......................................................................................................................103
Figure 9-2: Rear Panel View..............................................................................................................................106
Figure 11-1: OPTIONS screen ..........................................................................................................................110
Figure 11-2: Available options ...........................................................................................................................110
Figure 11-3: APPLICATIONS Screen................................................................................................................113
Figure 11-4: MIL704 Menu ................................................................................................................................113
Figure 11-5: MIL704 DC Menu - 1 of 3 ..............................................................................................................114
Figure 11-6: MIL704 DC Menu - 2 of 3 ..............................................................................................................114
Figure 11-7: MIL704 DC Menu - 3 of 3 ..............................................................................................................114
Figure 11-8: Steady State DC............................................................................................................................114
Figure 11-9: Transient Menu .............................................................................................................................115
Figure 11-10: Abnormal Test Screen.................................................................................................................116
Figure 11-11: Emergency Test ..........................................................................................................................117
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List of Tables
Table 3-1: Rear Panel Input and /Output Connectors ......................................................................................... 12
Table 3-2: Output Connection Description .......................................................................................................... 13
Table 3-3: Input Connection Description ............................................................................................................. 13
Table 3-4: RS232C Connector - J20 ................................................................................................................... 13
Table 3-5: Analog I/O Connector (Isolated) - J22................................................................................................ 14
Table 3-6: Auxiliary I/O Connector (Non-Isolated) - J21...................................................................................... 15
Table 3-7: Minimum Wire Size Table .................................................................................................................. 17
Table 4-1: Front panel menu structure ................................................................................................................ 28
Table 4-2: Transient programming resolution from front panel............................................................................ 38
Table 4-3: Configuration Control Modes.............................................................................................................. 43
Table 4-4: Sample Transient List ........................................................................................................................ 52
Table 4-5: Factory Default Power on Settings..................................................................................................... 53
Table 4-6: Operating Modes................................................................................................................................ 54
Table 5-1: Master or Auxiliary Controller Configuration Jumper Settings ............................................................ 65
Table 5-2: Master Configuration Jumper Settings ............................................................................................... 65
Table 7-1: Load Resistors and Current by model................................................................................................ 81
Table 8-1: Basic Symptoms ................................................................................................................................ 91
Table 8-2: Poor Output Voltage Accuracy........................................................................................................... 91
Table 8-3: Poor Output Voltage Regulation......................................................................................................... 91
Table 8-4: Unit Shuts Down After 3-5 Seconds................................................................................................... 92
Table 8-5: No Output and No Lights on Front Panel ........................................................................................... 92
Table 8-6: No Output But "Display" Is On........................................................................................................... 92
Table 8-7: Master or Auxiliary Configuration Jumper Settings ............................................................................ 97
Table 8-8: Master or Auxiliary Configuration Jumper Settings ............................................................................ 97
Table 8-9: Replaceable Parts............................................................................................................................ 101
Table 8-10: Power Module Output Capacitance................................................................................................ 101
Table 11-1: KDC restrictions -704 option .......................................................................................................... 112
Table 11-2: Error Messages.............................................................................................................................. 122
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1 Introduction
1.1 General Description
Figure 1-1: KDC Series DC Power Supply
The Argantix KDC Series DC Programmable Power Supplies are designed specifically for
laboratory test and systems applications requiring single output, variable DC voltage and current
with good ripple and regulation characteristics and sophisticated control and measurement
capabilities. The KDC Series comes in a 3U chassis and can operate in constant current or
constant voltage mode with auto crossover feature. Available Power levels are 5kW, 10kW and
15kW.
Simple menu driven front panel controls enable the voltage and current limit to be changed.
Measurements of voltage, current, peak current and power can also be read from the front panel
LED displays.
The front panel contains an output on/off button for controlling the DC supply output and an
output LED indicator that informs the operator of the output status at all time.
The LCD display is used to display the programmed voltage and current as well as all
measurements. More advanced functions can be accessed through nested levels of menus.
A standard RS232C and optional IEEE 488 interface is available for applications that require
remote control and measurements. While operated remotely, the front panel can be locked out
and the remote control status is indicated by a REMOTE LED.
A power on/off switch can be used to turn the DC supply on or off.
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1.2 KDC Controllers Series I versus Series II
The original controller version used in the KDC Series has been updated and is now referred to
as KDC II or Series II. The difference is in the way parallel operation of two or more units is
accomplished. KDC units with KDC II controllers have a top-level assembly revision of E as
indicated on the model serial tag. Revisions D and older have an original KDC controller.
Series II KDC models use either controller assembly 5005-721-1 or 5005-724-1. The 5005-724-1
replaced the 5005-721-1 controller as of August 2006 product shipments and is back ward
compatible with the 5005-721-1 controller.
Note: It is not possible to parallel a KDC Series I with a KDC Series II. Thus only
KDC units having the same generation controller can used in master /
auxiliary configuration.
This user manual is intended for use with KDC Units having a revision letter of E or higher. If the
unit you are using has a revision letter of D or lower, use user manual P/N 5005-960 instead.
Both user manuals are distributed on the same CD-ROM or are available for download from the
Argantix web site (www.argantix.com).
1.3 Bench Top use
The KDC Series DC Supply may be used as a bench top unit provided adequate provisions are
made to protect the end-user from touching the output terminals on higher voltage models. To
this end, output covers are provided on all KDC units. These covers must be installed during use
and may only be removed when the unit is not in use and disconnected from AC mains.
Adequate air flow must be maintained at all times so care should be taken not to block the top
and side air intakes or the rear air exhaust. Leave at least 4" of clearance at the back of the unit
to allow proper airflow.
1.4 Equipment Rack use
The KDC Series uses a 19" cabinet with rack ears and can be installed in a standard equipment
rack. Due to the weight of the unit however, it must be properly supported by either a shelf or L
brackets on both sides. The rack ears are not designed to support the full weight of the KDC unit
when installed in a cabinet but only to prevent it from sliding out.
Contact Argantix customer support ([email protected]) for information on rack mount kits for
specific cabinets depths. See also paragraph 2.11 for available rack mount brackets.
Proper airflow must be maintained in the instrument cabinet and the rear of the cabinet should
not be closed off by a door but rather a perforated screen allowing adequate airflow. It is also
important to leave enough clearance above each unit as some of the air intake is on the top
cover.
Note: It is recommended to leave a 1.75" (1 U) space above each KDC unit.
A louvered cover plate to allow some air intake from the front of the cabinet may be used to cover
this space. When planning total cabinet space, allow for 4U per DC supply.
If space is at a premium, units may be mounted with no space. Maximum operating temperature
may have to be derated to 35° under these conditions.
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2 Specifications
All specifications at 23 5C unless noted otherwise.
2.1 Electrical
2.1.1 Input Voltage
Standard: -208: 208 VAC L-L -10% to 230VAC L-L +10 %
Options: -400: 400VAC L-L ± 10 %
-480: 480VAC L-L ± 10 %)
Frequency: 50 to 60 Hz ± 3 Hz
Phases: 3-phase, 3-wire plus safety ground
Power Factor: > 0.65 typical.
2.1.2 Maximum Input Current per Phase at Low Line
Current 5 KW 10 KW 15 KW
Standard -208 27A 54A 81A
Options -400
-480:
18A
18A
36A
36A
54A
54A
Recommended circuit protection per phase. (CB)
Standard -208 30A 60A 90A
Options -400
-480:
20A
20A
40A
40A
60A
60A
2.1.3 Output Power
DC Power: See section 2.1.5. Maximum power is available at full-scale
voltage.
2.1.4 Output Voltage
Voltage
Voltage Ranges: See section 2.1.5
Voltage Programming: Internal
Accuracy: 0.05 % Setting + 0.1 % FS
Resolution: 0.025 % FS
Analog Input
Accuracy: 0.1 % Setting + 0.2 % FS
Noise and Ripple: See section 2.1.5
Line Regulation: < 0.1% of V Range
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Load Regulation: < 0.1% of V Range
External Sense External Voltage Sense mode.
Maximum voltage drop allowed at load terminals is 5% of voltage
range.
Note: For 600V models, maximum drop allowed is 3% (20Vdc).
Output Impedance Programmable in CV mode only.
Resolution: 1 mOhm
Range: 0 mOhm to N mOhm.
N = Voltage FS / 2 * Current FS. Voltage will not be reduced
below 50% of programmed value.
OVP Range: 0 to 110 % of V Range
105 to 115 % of V set
0 to 1.1 x Vmax range value
Transient Response: A 30% step load will recover to within 2% of original value within 2
msec.
Stability: +/- 0.05% of set point after 8 Hrs. warm up at fixed line, load and
temp
2.1.5 Ranges, Noise and Ripple
Output
Model Power
Max. Volts Max. Amps Max. Typical RMS Ripple Typical PkPk Ripple Max PkPk Ripple
KDC 30-167
KDC 30-333
KDC 30-500
5
10
15
30
30
30
167
333
500
15 mV
15 mV
15 mV
45 mV
45 mV
45 mV
90 mV
90 mV
90 mV
KDC 40-125
KDC 40-250
KDC 40-375
5
10
15
40
40
40
125
250
375
15 mV
15 mV
15 mV
45 mV
45 mV
45 mV
90 mV
90 mV
90 mV
KDC 50-100
KDC 50-200
KDC 50-300
5
10
15
50
50
50
100
200
300
15 mV
15 mV
15 mV
45 mV
45 mV
45 mV
90 mV
90 mV
90 mV
KDC 80-62
KDC 80-125
KDC 80-187
5
10
15
80
80
80
62.5
125
187.5
25 mV
25 mV
25 mV
100 mV
100 mV
100 mV
250 mV
250 mV
250 mV
KDC 100-50
KDC 100-100
KDC 100-150
5
10
15
100
100
100
50
100
150
25 mV
25 mV
25 mV
125 mV
125 mV
125 mV
250 mV
250 mV
250 mV
KDC 150-33
KDC 150-66
KDC 150-100
5
10
15
150
150
150
33.3
66.7
100
25 mV
25 mV
25 mV
150 mV
150 mV
150 mV
300 mV
300 mV
300 mV
KDC 250-17
KDC 250-33
KDC 250-50
5
10
15
250
250
250
20
40
60
100 mV
100 mV
100 mV
200 mV
200 mV
200 mV
400 mV
400 mV
400 mV
KDC 300-17
KDC 300-33
5
10
300
300
17
33.3
100 mV
100 mV
200 mV
200 mV
400 mV
400 mV
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KDC 300-50 15 300 50 100 mV 200 mV 400 mV
KDC 400-12
KDC 400-25
KDC 400-37
5
10
15
400
400
400
12.5
25
37.5
250 mV
250 mV
250 mV
2 V
2 V
2 V
2 V
2 V
2 V
KDC 600-8
KDC 600-17
KDC 600-25
5
10
15
600
600
600
8.33
17
25
250 mV
250 mV
250 mV
2 V
2 V
2 V
2 V
2 V
2 V
2.1.6 Output Current
Current
Current Ranges: See section 2.1.5
Current Programming: Internal
Accuracy: 0.05 % Setting + 0.1 % FS
Resolution: 0.025 % FS
Analog Input
Accuracy: 0.1 % Setting + 0.2 % FS
Line Regulation: < 0.1% of V Range
Load Regulation: < 0.1% of V Range
Stability: +/- 0.05% of set point after 8 Hrs. warm up at fixed line, load and
temp
2.2 Measurements
Measurement
Voltage Accuracy: +/- (0.05% of Reading + 0.1% of Full Scale)
Resolution: +/- (0.025% of Full Scale)
Current Accuracy: +/- (0.1% of Reading + 0.2% of Full Scale)
Resolution: +/- (0.025% of Full Scale)
Power Accuracy: +/- (0.2% of Reading + 0.3% of Full Scale)
Resolution: +/- (0.05% of Full Scale)
2.3 Environmental
Temperature Coefficient
Voltage Set Point: 0.02%/C of V Range
Current Set Point: 0.03%/C of I Range
Ambient Temperature
Operating: 0 to 50 C / 32 to 122 F
Storage: -40 to 75 C /-40 to 167 F
Humidity: 0 to 80 % RH, non condensing
Cooling: Forced Air. Front, side and top air intake, rear exhaust.
Altitude
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Operating: 2000 meters max.
Storage: 6000 meters max.
2.4 Mechanical
Dimensions: Width: 19.00 “/ 482.6 mm
Depth: 22.19”/ 563.3 mm
(excluding bus bars and cover)
Height: 5.25”/133.35 mm
Unit Weight: 15 kW model: Net: 84 Lbs. / 38.1 Kg.
Gross: 110 Lbs. / 50 Kg
10 kW model: Net: 70 Lbs. / 31.8 Kg.
Gross: 96 Lbs. / 44 Kg
5 kW model: Net: 56 Lbs. / 25.4 Kg.
Gross: 82 Lbs. / 37.2 Kg
Material: Chassis: Steel. (Anodized)
Top cover: Aluminum (Anodized)
Front panel Aluminum (Anodized)
Cooling: Forced air, side and top intake, rear exhaust
Acoustic Noise Level:
(Measured at 1 meter
from front of unit).
5 KW: < 55 dBA
10KW: < 60 dBA
15KW: < 65 dBA
Internal Construction: Modular construction.
Rear Panel
Connections:
AC Power Input, DC power out, RS232, GPIB (option), Analog
Programming (option)
Rack Mounting Unit must be supported by shelf or brackets when mounted in 19"
cabinet.
No provisions for rack slides are made on instrument.
2.5 Agency Approvals
CE Mark: GENERAL: IEC 61326-1, 1998
SAFETY: IEC 61010-1, 2001
EMC: EN55011, Class A, Group 1
IEC 61000-4-2, 1995 IEC 61000-4-4, 1995
IEC 61000-4-5, 1995 IEC 61000-4-6, 1996
IEC61000-4-8, IEC 61000-4-11, 1994
2.6 Remote Control Interfaces
Standard:
RS232C Interface:
9 pin D-Shell connector
Handshake: CTS, RTS
Data bits: 8
Stop bits: 1
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Baud Rates: 9600, 19200, 38400, 57600,
115200
SCPI Syntax
-IF Option:
IEEE-488 Interface option:
IEEE-488 (GPIB) talker listener
Subset: SH1, AH1, T6, L3, C0, DC1, DT1, PP0, RL2, SR1
IEEE-488.2 SCPI Syntax
2.7 Analog Monitor Outputs
I nom Current Monitor
Range: Model specific.
Accuracy: 0.05 % Setting + 0.1 % FS
V mon Voltage Monitor (requires –IF option).
Range: 0 – 10 VDC
Accuracy: 0.1 % Setting + 0.2 % FS
2.8 Protection
 Over temperature shut down
 Short circuit protection
 Remote Sense, Open Sense.
 Overload protection
 Over voltage protection
2.9 Controls and Indicators
Controls: Voltage Setting: Digitally encoded rotary knob
Current Setting: Digitally encoded rotary knob
Function Keys: Five Push Buttons
Output on/off: Push button
Power on/off: Toggle Switch
Indicators: Display: Dual 16 character matrix LCD
LED’s for: Output on/off
Constant Current mode
Constant Voltage mode
Constant Power mode
Remote Interface states
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2.10 Parallel Operation
Two or more KDC power supplies of the same voltage range may be combined to create a higher
power system. This requires one master unit (default) and one or more auxiliary units (-AUX). If
both units have the same power level (same model numbers), the sharing will be equal between
the chassis and the programmed current limit set on the master will be multiplied. If units are not
of equal power, the user needs to be aware of the ratio between master and auxiliary(s). This can
be confusing and such a setup is generally not recommended.
The maximum number of KDC units that can be paralleled is 5 (1 master + 4 auxiliary units). The
following specifications apply to multi-box KDC configurations:
Parameter
Current Range: Multiply by number of KDC units.
Current Programming:
Accuracy: Multiply by number of KDC units. E.g. for a 3 unit AUX AP
system, accuracy = 0.15 % + 0.3 % FS.
Resolution: Multiply by number of KDC units. Programmable current is set for
master unit only. Total current will be set current times number of
units.
Current Sharing Within 2 % typical of combined current range. (If adjusted as
master/aux system.)
Current ripple Multiply by number of KDC units
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2.11 Available Options and Accessories
The following factory installed options are available for the KDC II series and may be specified at
the time of order. Installed options are shown on the model and serial tag of the KDC power
supply.
Other options may be added in the future and may not be shown in this manual revision.
Option Description
-IF GPIB / Analog Interface. This option is required for parallel
operation.
-400 400 V L-L AC input
-480 480 V L-L AC input
-AUX Factory configured and calibrated for use as an Auxiliary unit with
KDC II Master DC supply.
-RPV Factory configured and calibrated for analog voltage
programming.
-RPC Factory configured and calibrated for analog current
programming.
Following accessories are available for the KDC Series.
PART # DESCRIPTION VENDOR QTY
5005-053-1 KDC Series II parallel mode cable. CI 1
5005-255-1 Rack mount angle bracket, Left1. CI 1
5005-255-2 Rack mount angle bracket, Right2. CI 1
5005-255-3 Rack mount clamp. (For use with 5005-255-1 and –2) CI 2
1Angle brackets are dimensioned for use with California Instruments cabinets and may not fit all 19”
cabinets.
2See note 1.
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User Manual
2.12 -LC Option
The –LC option has been replaced by the –FT option.
2.13 -FT Option
The –FT option provides a high current bleeder and reduces the output capacitance of each DC
power module to support faster down programming times. This results in further improved fall
times compared to a standard KDC unit. The output noise and ripple specification is increased by
a factor of 2 when adding the –FT option.
This option is available only on models with voltage ranges of 40, 60 or 80V. The –FT option
must be ordered at time of initial order. This option cannot be retrofitted.
The performance specification of KDC power supplies with the –FT option is the same as a KDC
power supply except as noted below:
The voltage loop compensation is adjusted to reduce overshoot normally associated with the
reduced output capacitance of the power modules. This results in reduced load regulation
performance. An auto level control (ALC) mode is provided on –FT models to adjust for load
regulation. The ALC mode applies to CV mode of operation only and is automatically disabled
when the DC supply operates in CC or CP modes. The ALC mode can be turned on from the
CONTROL menu.
Parameter Specification
Voltage Ranges: 30V, 40V, 50V, 80V
Load Regulation: < 6 % of V Range (ALC mode off).
< 0.2% of V Range (ALC mode on).
Other Features:
OPV Mode: Fixed to % of V setting.
OVP Settings of % of Range or Absolute are disabled with –FT
option.
Voltage Transients
KDC40
Down programming 28V – 0V < 1.0 ± 0.5 msec
Up programming 0V – 28V, no load < 1.3 ± 0.5 msec
0V – 28V, full load < 1.5 ± 0.5 msec
-FT Option Output capacitance with -FT option
Capacitance per 5 KW module. Standard Unit Capacitance per 5 KW module.
30V 11200 uF 44000 uF
40V 7800 uF 30000 uF
50V 7800 uF 24000 uF
80V 3000 uF 7800 uF
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3 Installation and Functional Test
3.1 Inspection
Inspect the shipping carton for possible damage before unpacking the unit. Carefully unpack the
equipment.
Save all packing materials until inspection is complete. Verify that all items listed on the packing
slips have been received. Visually inspect all exterior surfaces for broken knobs, connectors or
meters. Inspect for dented or damage exterior surfaces. External damage may be an indication of
internal damage. If any damage is evident, immediately contact the carrier that delivered the unit
and submit a damage report. Failure to do so could invalidate future claims.
3.2 Location and Mounting
Bench Use
The KDC Series DC Supply may be used as a bench top unit provided adequate provisions are
made to protect the end-user from touching the output terminals. To this end, output covers are
provided on all KDC units. These covers must be installed during use and may only be removed
when the unit is not in use and disconnected from AC mains.
Adequate air flow must be maintained at all times so care should be taken not to block the top
and side air intakes or the rear air exhaust. Leave at least 4" of clearance at the back of the unit
to allow proper airflow.
Rack Use
The KDC Series uses a 19" cabinet with rack ears and can be installed in a standard equipment
rack. Due to the weight of the unit however, it must be properly supported by either a shelf or L
brackets on both sides. The rack ears are not designed to support the full weight of the KDC unit
when installed in a cabinet but only to prevent it from sliding out. Four screws, two on each side
of the front panel, should be used to secure the unit in place.
Proper airflow must be maintained in the instrument cabinet and the rear of the cabinet should
not be closed off by a door but rather a perforated screen allowing adequate airflow.
NOTE: The unit should be provided with the proper ventilation. The top, rear and
both sides of the unit should be free of obstructions. A 1.75" (1 U) spacing
between units mounted in the same cabinet is recommended.
KDC Series II DC Power Supplies 11