Ametek CS Series User manual

Revision J
March 2015
Copyright 2003-2009
AMETEK Programmable Power
All rights reserved.
P/N 7004-987
CS Series
AC Power Source
User Manual
TEL: [phone] (toll free in North America)
[phone] (direct)
FAX: [phone]
Email: [e-mail]
Web Site: http://www.programmablepower.com

User Manual – Rev J CS Series
California Instruments 2
Refers to:
CS Series AC Power Sources
Models:
Single chassis: 3000CS, 4500CS
Multiple chassis: 9000CS/2, 13500CS/3, 18000CS
Manual revision: G.
Copyright © 2005-2009 AMETEK Programmable Power division.

User Manual – Rev J CS Series
California Instruments 3
About AMETEK
AMETEK Programmable Power, Inc., a Division of AMETEK, Inc., is a global leader in the design
and manufacture of precision, programmable power supplies for R&D, test and measurement,
process control, power bus simulation and power conditioning applications across diverse industrial
segments. From bench top supplies to rack-mounted industrial power subsystems, AMETEK
Programmable Power is the proud manufacturer of Elgar, Sorensen, California Instruments and
Power Ten brand power supplies.
AMETEK, Inc. is a leading global manufacturer of electronic instruments and electromechanical
devices with annualized sales of $2.5 billion. The Company has over 11,000 colleagues working at
more than 80 manufacturing facilities and more than 80 sales and service centers in the United
States and around the world.
Trademarks
AMETEK is a registered trademark of AMETEK, Inc. California Instruments is a trademark owned by
AMETEK, Inc. Other trademarks, registered trademarks, and product names are the property of their
respective owners and are used herein for identification purposes only.
Notice of Copyright
MX Series User Manual © 2003-2009 AMETEK Programmable Power, Inc. All rights reserved.
Exclusion for Documentation
UNLESS SPECIFICALLY AGREED TO IN WRITING, AMETEK PROGRAMMABLE POWER, INC.
(“AMETEK”):
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY
TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER
DOCUMENTATION.
(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR EXPENSES,
WHETHER SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT
ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH INFORMATION WILL
BE ENTIRELY AT THE USER’S RISK, AND
(c) REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH,
ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE TRANSLATION,
THE ACCURACY CANNOT BE GUARANTEED. APPROVED AMETEK CONTENT IS CONTAINED
WITH THE ENGLISH LANGUAGE VERSION, WHICH IS POSTED AT
WWW.PROGRAMMABLEPOWER.COM.
Date and Revision
March 2009 Revision AK
Part Number
7003-960
Contact Information
Telephone: [phone] (toll free in North America)
858 450 0085 (direct)
Fax: [phone]
Email: [email protected]
[email protected]
Web: www.programmablepower.com

User Manual – Rev J CS Series
California Instruments 4
Important Safety Instructions
Before applying power to the system, verify that your product is configured properly for your
particular application.
WARNING
Hazardous voltages may be present when covers are removed. Qualified
personnel must use extreme caution when servicing this equipment.
Circuit boards, test points, and output voltages also may be floating above
(below) chassis ground.
WARNING
The equipment used contains ESD sensitive parts. When installing
equipment, follow ESD Safety Procedures. Electrostatic discharges might
cause damage to the equipment.
Only qualified personnel who deal with attendant hazards in power supplies, are allowed to perform
installation and servicing.
Ensure that the AC power line ground is connected properly to the Power Rack input connector or
chassis. Similarly, other power ground lines including those to application and maintenance equipment
must be grounded properly for both personnel and equipment safety.
Always ensure that facility AC input power is de-energized prior to connecting or disconnecting any
cable.
In normal operation, the operator does not have access to hazardous voltages within the chassis.
However, depending on the user’s application configuration, HIGH VOLTAGES HAZARDOUS TO
HUMAN SAFETY may be normally generated on the output terminals. The customer/user must
ensure that the output power lines are labeled properly as to the safety hazards and that any
inadvertent contact with hazardous voltages is eliminated.
Guard against risks of electrical shock during open cover checks by not touching any portion of the
electrical circuits. Even when power is off, capacitors may retain an electrical charge. Use safety
glasses during open cover checks to avoid personal injury by any sudden component failure.
Neither AMETEK Programmable Power Inc., San Diego, California, USA, nor any of the subsidiary
sales organizations can accept any responsibility for personnel, material or inconsequential injury, loss
or damage that results from improper use of the equipment and accessories.

User Manual – Rev J CS Series
California Instruments 5
SAFETY SYMBOLS

User Manual – Rev J CS Series
California Instruments 6
WARRANTY TERMS
AMETEK Programmable Power, Inc. (“AMETEK”), provides this written warranty covering the
Product stated above, and if the Buyer discovers and notifies AMETEK in writing of any defect in
material or workmanship within the applicable warranty period stated above, then AMETEK may, at
its option: repair or replace the Product; or issue a credit note for the defective Product; or provide
the Buyer with replacement parts for the Product.
The Buyer will, at its expense, return the defective Product or parts thereof to AMETEK in
accordance with the return procedure specified below. AMETEK will, at its expense, deliver the
repaired or replaced Product or parts to the Buyer. Any warranty of AMETEK will not apply if the
Buyer is in default under the Purchase Order Agreement or where the Product or any part thereof:
•is damaged by misuse, accident, negligence or failure to maintain the same as
specified or required by AMETEK;
•is damaged by modifications, alterations or attachments thereto which are not
authorized by AMETEK;
•is installed or operated contrary to the instructions of AMETEK;
•is opened, modified or disassembled in any way without AMETEK’s consent; or
•is used in combination with items, articles or materials not authorized by AMETEK.
The Buyer may not assert any claim that the Products are not in conformity with any warranty until
the Buyer has made all payments to AMETEK provided for in the Purchase Order Agreement.
PRODUCT RETURN PROCEDURE
Request a Return Material Authorization (RMA) number from the repair facility (must be done in
the country in which it was purchased):
•In the USA, contact the AMETEK Repair Department prior to the return of the
product to AMETEK for repair:
Telephone: [phone], ext. 2295 or ext. 2463 (toll free North America)
858-450-0085, ext. 2295 or ext. 2463 (direct)
•Outside the United States, contact the nearest Authorized Service Center (ASC). A
full listing can be found either through your local distributor or our website,
www.programmablepower.com, by clicking Support and going to the Service Centers
tab.
When requesting an RMA, have the following information ready:
•Model number
•Serial number
•Description of the problem
NOTE: Unauthorized returns will not be accepted and will be returned at the shipper’s expense.
NOTE: A returned product found upon inspection by AMETEK, to be in specification is subject to an
evaluation fee and applicable freight charges.

User Manual – Rev J CS Series
California Instruments 7
Table of Contents
1. Introduction...................................................................................................................................10
1.1 General Description.........................................................................................................................10
1.2 Manual organization and format ......................................................................................................10
2. Specifications................................................................................................................................11
2.1 Electrical..........................................................................................................................................11
2.2 Mechanical.......................................................................................................................................22
2.3 Environmental..................................................................................................................................22
2.4 Front Panel Controls........................................................................................................................23
2.5 Special Features..............................................................................................................................24
2.6 Available Options – CS Series.........................................................................................................24
3. Unpacking and Installation ...........................................................................................................29
3.1 Unpacking........................................................................................................................................29
3.2 Power Requirements .......................................................................................................................29
3.3 Mechanical Installation.....................................................................................................................29
3.4 AC Input Wiring - INPUT..................................................................................................................31
3.5 Output Connections.........................................................................................................................31
3.6 Connectors - Rear Panel .................................................................................................................37
3.7 Basic Initial Functional Test.............................................................................................................42
3.8 Multi-box Configurations (-MB Option).............................................................................................44
3.9 Clock and Lock Mode (-LKM/-LKS Option)......................................................................................45
3.10 Remote Control Interfaces and CSGui Program..............................................................................47
3.11 RPV Input (RPV option)...................................................................................................................47
4. Front Panel Operation ..................................................................................................................49
4.1 Tour of the Front Panel....................................................................................................................49
4.2 Menu Structure................................................................................................................................55
4.3 Output Programming .......................................................................................................................77
4.4 Waveform Management ..................................................................................................................79
4.5 Measurements.................................................................................................................................82
4.6 Harmonic Analysis...........................................................................................................................83
4.7 Transient Programming ...................................................................................................................83
4.8 Setting the Power-on Initialization Values........................................................................................86
4.9 Remote Inhibit Function...................................................................................................................87
5. Principle of Operation...................................................................................................................88
5.1 Overall Description ..........................................................................................................................88
5.2 Controller Assembly.........................................................................................................................88
6. Calibration.....................................................................................................................................90
6.1 Recommended Calibration Equipment ............................................................................................90
6.2 Calibration Password.......................................................................................................................90
6.3 Voltage Measurement Calibration....................................................................................................91
6.4 Current Measurement Calibration....................................................................................................92
6.5 Output Calibration............................................................................................................................92
6.6 Phase Offset Calibration..................................................................................................................93
6.7 Non-Routine Output Gain Calibration ..............................................................................................94
6.8 Non-Routine Distortion Adjustment..................................................................................................95
7. Service..........................................................................................................................................97
7.1 Cleaning...........................................................................................................................................97
7.2 General............................................................................................................................................97
7.3 Basic operation................................................................................................................................97
7.4 Isolating amplifier failures in multi-box systems...............................................................................99

User Manual – Rev J CS Series
California Instruments 8
7.5 Advanced Troubleshooting............................................................................................................ 100
7.6 Factory Assistance........................................................................................................................ 100
7.7 Fuses ............................................................................................................................................ 100
7.8 Replaceable Parts......................................................................................................................... 101
8. Error Messages..........................................................................................................................103
Index..................................................................................................................................................109

User Manual – Rev J CS Series
California Instruments 9
List of Figures
Figure 2-1: Voltage / Current Rating Chart in 3 phase mode, 135 Range. ..........................................................15
Figure 2-2: Voltage / Current Rating Chart in 1 phase mode, 135 Range. ..........................................................15
Figure 2-3: Voltage / Current Rating Chart in 3 phase mode, 270 Range. ..........................................................16
Figure 2-4: Voltage / Current Rating Chart in 1 phase mode, 270 Range. ..........................................................16
Figure 2-5: Load Impedance / Current Rating Chart in 3 phase mode, 135 Range.............................................17
Figure 2-6: Load Impedance / Current Rating Chart in 1 phase mode, 135 Range.............................................17
Figure 2-7: Load Impedance / Current Rating Chart in 3 phase mode, 270 Range.............................................18
Figure 2-8: Load Impedance / Current Rating Chart in 1 phase mode, 270 Range.............................................18
Figure 3-1: Rear Panel Connector Locations – CS Series...................................................................................30
Figure 3-2: 9000CS/2 Output Wiring ...................................................................................................................33
Figure 3-3: 9000CS/2 Wiring diagram - 3 Phase mode.......................................................................................34
Figure 3-4: 13500CS/3 Wiring diagram - 3 Phase mode.....................................................................................35
Figure 3-5: 18000CS/4 Wiring diagram - 3 Phase mode.....................................................................................36
Figure 3-6: USB Connector pin orientation..........................................................................................................40
Figure 3-7: Functional Test Setup .......................................................................................................................43
Figure 3-8: Clock and Lock Connections.............................................................................................................46
Figure 3-9: CSGui Windows application software................................................................................................47
Figure 4-1: Shuttle Knob......................................................................................................................................51
Figure 4-2: Menu Keys ........................................................................................................................................52
Figure 4-3: Measurement Screen........................................................................................................................54
Figure 4-4: PROGRAM Menu..............................................................................................................................60
Figure 4-5: CONTROL Menus.............................................................................................................................61
Figure 4-6: MEASUREMENT Screen..................................................................................................................64
Figure 4-7: Selecting a Waveform.......................................................................................................................79
Figure 4-8: Selecting Waveforms for Single Phase or All Phases .......................................................................80
Figure 4-9: Waveform Crest Factor Affects Max. RMS Current...........................................................................80
Figure 4-10: Switching Waveforms in a Transient List.........................................................................................85
Figure 4-11: TRANSIENT Menu..........................................................................................................................85
Figure 6-1: Location of Gain pot adjustments......................................................................................................94
List of Tables
Table 3-1: Output Terminal connections..............................................................................................................32
Table 3-2: Rear Panel Connectors ......................................................................................................................37
Table 3-3: AC Input Terminal Block Connection Description...............................................................................38
Table 3-4: SMA Connectors – CS Series ............................................................................................................38
Table 3-5: BNC Connectors.................................................................................................................................39
Table 3-6: External Sense Connector..................................................................................................................39
Table 3-7: RS232C Connector ............................................................................................................................39
Table 3-8: USB Connector pin out.......................................................................................................................40
Table 3-9: RJ45 LAN Connector pin out..............................................................................................................41
Table 3-10: Full Load Resistance – CS Series....................................................................................................43
Table 4-1: Menu Tree..........................................................................................................................................59
Table 4-2: Factory Default Power on Settings .....................................................................................................86
Table 4-3: Factory Default Power on Settings .....................................................................................................87
Table 6-1: Output Calibration Coefficients - Factory Defaults..............................................................................93
Table 6-2: Output Calibration Coefficients - Factory Defaults..............................................................................95
Table 7-1: Basic Symptoms.................................................................................................................................97
Table 7-2: Replaceable Parts and Assemblies..................................................................................................102
Table 8-1: Error Messages................................................................................................................................108

User Manual – Rev J CS Series
California Instruments 10
1. Introduction
This CS Series User manual (P/N 7004-987) contains information on the installation, operation,
calibration and maintenance of the CS Series AC current sources. The terms AC power source
and AC current source may be used in this manual to refer to a CS Series unit.
1.1 General Description
The CS Series of AC Current Sources is a family of high efficiency, rack mountable, AC Power
Source/Analyzer combinations that provide a precise current output with low distortion and
advanced measurements. Output current range is up to 14.8 Arms per phase at full power for
the three-phase mode and 44.4 Arms for the single-phase mode. The CS Series can be
operated in either single or three-phase mode.
For higher power levels, two to four CS series chassis can be combined using the system
interface in a parallel mode of operation. These multi chassis systems consist of one master unit
with controller and one to three auxiliary units without controllers. Only the master unit has a
front panel keyboard and display.
The CS Series comes standard with USB, RS232C and GPIB interfaces.
Read the installation instructions carefully before attempting to install and operate the CS AC
current source.
Note: All interfaces use the SCPI command syntax as described in the programming manual.
1.2 Manual organization and format
All user documentation for California Instruments power sources is provided on CDROM in
electronic format. (Adobe Portable Document Format) The required Adobe PDF viewer is
supplied on the same CDROM. This manual may be printed for personal use if a hardcopy is
desired. To request a hardcopy from California Instruments, contact customer service at
[email protected]. There will be an additional charge for printed manuals.
This manual contains sections on installation, normal use, maintenance and calibration. The CS
Series is equipped with GPIB, USB and RS232C interfaces. An optional LAN interface can be
specified at the time of order. Refer to the CS Series Programming manual for information on
using the remote control interface and command syntax. The programming manual (P/N 7004-
988) is provided on the same CDROM as this user manual.
California Instruments may make updated versions of this manual available from time to time in
electronic format through it’s website. To obtain an updated manual revision if available, check
the California Instruments Manual download page at www.programmablepower.com. You need
to register as a customer to obtain free access to manual and software downloads.

User Manual – Rev J CS Series
California Instruments 11
2. Specifications
Specifications shown are valid over an ambient temperature range of 25 ±5°C and apply after a
30 minute warm-up time. Unless otherwise noted, all specifications are per phase for sine wave
output into a resistive load. For three phase configurations or mode of operation, all
specifications are for Line to Neutral (L-N) and phase angle specifications are valid under
balanced load conditions only.
2.1 Electrical
2.1.1 Input
Parameter Specification
Line Voltage:
(3 phase, 3 wire
+ ground (PE))
3000CS, 4500CS, 9000CS/2, 13500CS/3,
18000CS/4:
Std: 208 - 230 VLL ± 10%
-400: 400 VLL ±10%
Note: Each CS chassis requires its
own AC service.
Note: 3000CS may be operated
from 208-230 V L-N single phase
AC input between B and C on TB3
for 3000CS.
Line VA:
(total) 3000CS 5900 VA / 4100 W
4500CS 8900 VA / 5900 W (x2 for 9000CS/2, x3 for 13500CS/3, x4
for 18000CS/4)
Line Current:
(per phase) 3000CS Std: 19 Arms @ 187 VLL, 3 phase AC input. [32 Arms @ 187 VLN single phase AC input. Connect
between TB3-B and TB3-C]
-400: 10 Arms @ 360 VLL, 3 phase AC input.
4500CS Std: 31 Arms @ 187 VLL
-400: 16 Arms @ 360 VLL
Currents shown are for single chassis models. For multi-chassis
configurations, currents are per chassis.
Line Frequency: 47-440 Hz
Efficiency: 75 % (typical) depending on line and load
Power Factor: 0.65 (typical)
Inrush Current: 50 Apk @ 253VLL per chassis
83 Apk @ 400VLL per chassis Note: Each CS chassis requires
its own AC service.
Hold-Up Time: > 10 ms
Isolation
Voltage: 2200 VAC input to chassis and input to output.

User Manual – Rev J CS Series
California Instruments 12
2.1.2 Output
Output Parameter Specification
Modes AC
Current (as a function of selected compliance voltage range):
Ranges (L-N): 3000CS/ 4500CS Series
135V CVR
1
0 – 14.81 Arms, three phase mode
0 – 44.44 Arms, single phase mode
3000CS Max. current is power limited above 67.5V.
4500CS Max. current is power limited above 101V
270V CVR 0 – 7.4 Arms, three phase mode
0 – 22.22 Arms, single phase mode
3000CS Max. current is power limited above 135V.
4500CS Max. current is power limited above 202V
Resolution: 0.01 A
Ranges (L-N): 9000CS/2
135V CVR 0 – 29.62 Arms, three phase mode
0 – 88.88 Arms, single phase mode
Max. current is power limited above 101V
270V CVR 0 – 14.81 Arms, three phase mode
0 – 44.4 Arms, single phase mode
Max. current is power limited above 202V
Resolution: 0.01 A
Ranges (L-N): 13500CS/3
135V CVR 0 – 44.44 Arms, three phase mode
0 – 133.3 Arms, single phase mode
Max. current is power limited above 101V
270V CVR 0 – 22.22 Arms, three phase mode
0 – 66.66 Arms, single phase mode
Max. current is power limited above 202V
Resolution: 0.01 A
Ranges (L-N): 18000CS/4
135V CVR 0 – 59.24 Arms, three phase mode
0 – 177.76 Arms, single phase mode
Max. current is power limited above 101V
270V CVR 0 – 29.62 Arms, three phase mode
0 – 88.86 Arms, single phase mode
Max. current is power limited above 202V
Resolution: 0.01 A
Programming
Accuracy: 3 Phase mode: ± (0.1% + 0.05 A) from .5A to FS 1 Phase mode: ± (0.1% + 0.15 A) from .5A to FS
Distortion THD
2
:
Standard: < 1.2 % [60 - 500 Hz]
1CVR = Compliance Voltage Range.
2The distortion specification for the CS Series applies at full-scale current, full resistive load conditions, using 30Khz
LP Filter on distortion analyzer.

User Manual – Rev J CS Series
California Instruments 13
Output Parameter Specification
< 2% [500 - 1000 Hz]
< 2.5% [1000 - 2000 Hz]
With –LKM option:
< 2.2 % [60 - 500 Hz]
< 3% [500 - 1000 Hz]
< 3.5% [1000 - 2000 Hz]
Load Regulation:
ALC mode ON 0.1 % FS
Line Regulation: 0.02% for 10% input line change
Output Noise:
(20 kHz to 1 MHz, full
current output)
3 Phase mode: < 13 mARMS
1 Phase mode: < 40 mARMS
Temp. Coefficient ± 0.01% of range / °C
Stability: ± 0.01 A over 24 Hours
DC Offset Current: 0.0 A
Output Coupling Transformer coupled
Output Impedance (Z) >100k
Maximum Peak Current
1
– CS Series, data shown for 135 compliance voltage range.
Model 3000CS / 4500CS
Single Phase Mode:
Max. Peak 133 A
Three Phase Mode:
Max. Peak, per phase 44.4 A
Note: For 9000CS/2, currents are 2 x 4500CS.
For 13500CS/3, currents are 3 x 4500CS.
For 18000CS/4, currents are 4 x 4500CS.
Compliance Voltage:
Ranges 135Vrms or 270Vrms
Minimum compliance
voltage as a function
of current, voltage
range and phase
mode:
3000CS: Vcomp * Iprog <= 1 KVA (3 phase mode)
Vcomp * Iprog <= 3 KVA (1 phase mode)
4500CS: Vcomp * Iprog <= 1.5 KVA (3 phase mode)
Vcomp * Iprog <= 4.5 KVA (1 phase mode)
Vcomp >= Iprog x (Vrange) ^2 / 1500 (3 phase mode).
Vcomp >= Iprog x (Vrange) ^2 / 4500 (1 phase mode).
Vrange = Voltage Range selected. For multi chassis systems, multiple
donominator by no of chassis to determine minimum available compliance
voltage.
Voltage Limit Programming:
Model / Range 135 Range, 3 Phs 270 Range, 3 Phs
3000CS
Max. setting: 135 Vrms @ 7.41A 67.5 Vrms @ 14.81 A 270Vrms @ 3.7A 135Vrms @ 7.4A
1Note: Maximum peak current can only be supported with loads for which compliance voltage peak is less than
190V peak in 135 Range or 380V peak in 270 Range.

User Manual – Rev J CS Series
California Instruments 14
Output Parameter Specification
4500CS
Max. setting: 135 Vrms @ 11.11A 101Vrms @ 14.81A 270Vrms @ 5.5A 202Vrms @ 7.4A
Programming
resolution: 0.1 Vrms
Voltage Limit mode Programmable, CC or CV mode
Power – CS Series (total power for all phases, either range, at full scale voltage)
Model 3000CS 4500CS
Single Phase Mode 3.0 KVA 4.5 KVA
Three Phase Mode (per
phase) 1.0 KVA 1.35 KVA
Model 9000CS/2 13500CS/3
Single Phase Mode 9 KVA 13.5 KVA
Three Phase Mode (per
phase) 3 KVA 4.5 KVA
Model 18000CS/4
Single Phase Mode 18 KVA
Three Phase Mode (per
phase) 6 KVA
Frequency
Range: 45 Hz - 2000 Hz
Resolution
1
: 0.01 Hz [< 81.91 Hz]
0.1 Hz [> 82.0 to 819.1 Hz]
1 Hz [> 819 Hz]
Accuracy: ± 0.025 %
Temp Coefficient:: +/- 5 ppm of value / °C
Stability: +/- 15 ppm of value / year
Phase (3 phase mode)
Range: Phase B/C relative to phase A
0.0 to 360.0°
Resolution: 0.1° < 819.1 Hz
0.5° > 819.1 Hz
Accuracy: < 2° [45 Hz - 1000 Hz]
< 1° + 1°/kHz [> 1000 Hz]
Note: All output specifications apply below the Current / Voltage rating line shown in
the V/I rating charts of section 2.1.3 for 3000CS and 4500CS.
Note: For maximum impedance of EUT as a function of programmed current, refer to R/I
rating charts in section for 3000CS and 4500CS. Data is shown for 135 Range. For
270 Range mode, divide current by 2 and multiply voltage by 2.

User Manual – Rev J CS Series
California Instruments 15
2.1.3 Voltage versus Current Rating Charts - CS Series, 135 Range
Figure 2-1: Voltage / Current Rating Chart in 3 phase mode, 135 Range.
Figure 2-2: Voltage / Current Rating Chart in 1 phase mode, 135 Range.
1Programming resolution reduced if –LKM/-LKS option is installed. See paragraph 2.6.2.

User Manual – Rev J CS Series
California Instruments 16
2.1.4 Voltage versus Current Rating Charts - CS Series, 270 Range
Figure 2-3: Voltage / Current Rating Chart in 3 phase mode, 270 Range.
Figure 2-4: Voltage / Current Rating Chart in 1 phase mode, 270 Range.

User Manual – Rev J CS Series
California Instruments 17
2.1.5 Load Impedance versus Current Rating Charts - CS Series, 135 Range
Figure 2-5: Load Impedance / Current Rating Chart in 3 phase mode, 135 Range.
Figure 2-6: Load Impedance / Current Rating Chart in 1 phase mode, 135 Range.

User Manual – Rev J CS Series
California Instruments 18
2.1.6 Load Impedance versus Current Rating Charts - CS Series, 135 Range
Figure 2-7: Load Impedance / Current Rating Chart in 3 phase mode, 270 Range.
Figure 2-8: Load Impedance / Current Rating Chart in 1 phase mode, 270 Range.

User Manual – Rev J CS Series
California Instruments 19
2.1.7 AC Measurements
Measurement specifications apply to single chassis CS Series AC source in single or three-
phase mode. See notes for other models and configurations.
Parameter Range Accuracy (±) Resolution
1 Phase Mode 3 Phase Mode
Frequency
1
45.00-2000 Hz 0.1% ± 1 digit 0.01 Hz to 81.91 Hz
0.1 Hz to 819.1 Hz
1 Hz > 819.1 Hz
Phase 0.0 – 360.0 ° 0.5° < 500 Hz
2° > 500 Hz 0. 1°
RMS Voltage 0 - 400 Volts 0.05% + 0.25V 0.01 Volt
RMS Current 0 - 50 Amps 0.1% + 0.15A 0.1% + 0.05A 0.001 Amp
Peak Current 0 - 150 Amps 0.2% + 0. 5A 0.1% + 0.15A 0.001 Amp
Crest Factor 1.00 – 10.00 1.5 % 1.5 % 0.01
VA Power 0 - 6 KVA 0.15% + 9 VA 0.15% + 3 VA 1 VA
Real Power 0 - 6 KW 0.15% + 9 W 0.15% + 3 W 1 W
Power Factor 0.00 - 1.00 0.03 0.01 0.01
Note: Accuracy specifications are valid above 100 counts. For multi-chassis configurations, Current
and Power range and accuracy specifications are times the number of chassis.
Note: Frequency measurement specification valid for output > 1 Arms.
Note: Crest Factor accuracy applies for Irms > 50% of max.
Note: Power Factor accuracy applies for PF > 0.5 and VA > 50% of max.
2.1.8 Harmonic Measurements
Harmonic measurement specifications apply to CS Series AC sources in three-phase mode.
See notes for single-phase mode.
Parameter Range Accuracy (±) Resolution
Frequency fundamental 45.00 - 81.91 Hz
82.0 - 819.1 Hz
> 819.1 Hz
0.1% ± 1 digit 0.01 Hz
0.1 Hz
1 Hz
Frequency harmonics 45.00 Hz – 16 kHz 0.1% + 2 digits 0.1 Hz
Voltage
Fundamental 0 - 400 Volts 0.05% + 0.25V 0.01V
Harmonic 2 - 50 0.1% + 0.1%/kHz + 0.25 0.01V
Current
Fundamental 0 - 20 Amps 0.1% + 0.05A 0.01A
Harmonic 2 - 50 0.1% + 0.1%/kHz + 0.05A 0.01A
Note: Current range and accuracy specifications are times three in single-phase mode. For multi-
1Frequency measurement specifications valid with output current of 1 Arms or higher. If output relay is open,
frequency measurement will return 0.0 Hz.

User Manual – Rev J CS Series
California Instruments 20
chassis configurations, current accuracy specifications are times the number of chassis.
2.1.9 System Specification
Parameter Specification
Trigger Input: External trigger source input. Requires TTL level input signal. Triggers
on negative edge. Response time 80 - 100 μs.
Non volatile memory
storage: 16 complete instrument setups and transient lists, 100 events per list. 50 User defined waveforms.
Waveforms Sine, square, clipped, user defined
Transients Parameters:
Current: Level, Slew rate
Function: Sine, Clip, Square, User
Frequency: Level, Slew rate
Voltage: Trip level
Time: Dwell time, Trigger out
Modes:
Fixed, Pulse, Step, List
Limit Modes: Two selectable modes of operation:
1. Constant voltage mode (current folds back with automatic recovery)
2. Constant current mode with trip-off (Relays open).
Interfaces
IEEE-488
AH1, DC1, DT1, L3, RL2, SH1, SR1, T6 IEEE 488.2 and SCPI
Response time is 10 ms (typical)
LAN / Ethernet
(-LAN Option) RJ45 Connector, 10BaseT, 100BaseT or 1000BaseT, Data transfer rate: 460,800 bps
Protocol: TCP/IP.
Note: If –LAN is installed, RS232C interface is disabled.
RS232C Baud rates, 9600, 19200, 38400, 57600 and 115200
Data bits: 8, Start bits: 1, Stop bits: 1, Parity: None
Syntax: SCPI
Response time is 10 ms (typical @ 115200 baud)
USB Standard USB 2.0 peripheral.
Data transfer rate: 460,800 bps
Syntax: SCPI
Note: Use of the USB port to control more than one power
source from a single PC is not recommended, as communication
may not be reliable. Use GPIB interface for multiple power source
control.
2.1.10 Unit Protection
Parameter Specification
Input Over current: Input Circuit breaker. This breaker protects the equipment only and is not
a branch protection device. AC input connection should be make using a
suitable branch protection device per local electrical code.
Input Over voltage
Transients: Surge protection to withstand EN50082-1 (IEC 801-4, 5) levels.