Chroma 6460 User manual

i

Programmable AC Source
6460/6463/6490
User’s Manual
Version 1.6
October 2015

ii
Legal Notices
The information in this document is subject to change without notice.
Chroma ATE INC. makes no warranty of any kind with regard to this manual, including, but
not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Chroma ATE INC. shall not be held liable for errors contained herein or direct, indirect, special,
incidental or consequential damages in connection with the furnishing, performance, or use of
this material.
CHROMA ATE INC.
66 Huaya 1st Road, Guishan, Taoyuan 33383, Taiwan
Copyright Notices. Copyright 2005 - 2015 Chroma ATE INC., all rights reserved.
Reproduction, adaptation, or translation of this document without prior written permission is
prohibited, except as allowed under the copyright laws.

iii
Warranty
All of Chroma’s instruments are warranted against defects in material and workmanship for a
period of one year from date of shipment. Chroma agrees to repair or replace any assembly
or component found to be defective, under normal use during this period. Chroma’s obligation
under this warranty is limited solely to repairing any such instrument, which in Chroma’s sole
opinion proves to be defective within the scope of the warranty when returned to the factory or
to an authorized service center. Purchaser is responsible for the shipping and cost of the
service item to Chroma factory or service center. Shipment should not be made without prior
authorization by Chroma.
This warranty does not apply to any products repaired or altered by persons not authorized by
Chroma, or not in accordance with instructions furnished by Chroma. If the instrument is
defective as a result of misuse, improper repair, or abnormal conditions or operations, repairs
will be billed at cost.
Chroma assumes no responsibility for its product being used in a hazardous or dangerous
manner either alone or in conjunction with other equipment. High voltage used in some
instruments may be dangerous if misused. Special disclaimers apply to these instruments.
Chroma assumes no liability for secondary charges or consequential damages and in any
event, Chroma’s liability for breach of warranty under any contract or otherwise, shall not
exceed the purchase price of the specific instrument shipped and against which a claim is
made.
Any recommendations made by Chroma regarding the use of its products are based upon
tests believed to be reliable; Chroma makes no warranty of the results to be obtained. This
warranty is in lieu of all other warranties, expressed or implied, and no representative or
person is authorized to represent or assume for Chroma any liability in connection with the
sale of our products other than set forth herein.
CHROMA ATE INC.
66 Huaya 1st Road, Guishan,
Taoyuan 33383, Taiwan
Tel: [phone]
Fax: [phone]
e-mail: [email protected]
http://www.chromaate.com

iv
Material Contents Declaration
The recycling label shown on the product indicates the Hazardous Substances contained in
the product as the table listed below.
: See <Table 1>.
: See <Table 2>.
<Table 1>
Part Name
Hazardous Substances
Lead
Mercury
Cadmium
Hexavalent
Chromium
Polybrominated
Biphenyls
Polybromodiphenyl
Ethers
Pb
Hg
Cd
Cr6+
PBB
PBDE
PCBA O O O O O O
CHASSIS O O O O O O
ACCESSORY O O O O O O
PACKAGE O O O O O O
“O” indicates that the level of the specified chemical substance is less than the threshold level
specified in
the standards of SJ/T-11363-2006 and EU 2005/618/EC.
“
” indicates that the level of the specified chemical substance exceeds the threshold level
specified in
the standards of SJ/T-11363-2006 and EU 2005/618/EC.
Disposal
Do not dispose of electrical appliances as unsorted municipal waste; use separate collection
facilities. Contact your local government for information regarding the collection systems
available. If electrical appliances are disposed of in landfills or dumps, hazardous substances
can leak into the groundwater and get into the food chain, damaging your health and
well-being. When replacing old appliances with a new one, the retailer is legally obligated to
take back your old appliances for disposal free of charge.

v
<Table 2>
Part Name
Hazardous Substances
Lead
Mercury
Cadmium
Hexavalent
Chromium
Polybrominated
Biphenyls
Polybromodiphenyl
Ethers
Pb
Hg
Cd
Cr6+
PBB
PBDE
PCBA O O O O O
CHASSIS O O O O O
ACCESSORY 
O O O O O
PACKAGE O O O O O O
“O” indicates that the level of the specified chemical substance is less than the threshold level
specified in the standards of SJ/T
-11363-2006 and EU 2005/618/EC.
“
” indicates that the level of the specified chemical substance exceeds the threshold level
specified in the standards of SJ/T
-11363-2006 and EU 2005/618/EC.
1.
Chroma is not fully transitioned to lead-free solder assembly at this moment; however,
most of the components used are RoHS compliant.
2.
The environment-friendly usage period of the product is assumed under the operating
environment specified in each product’s specification.
Disposal
Do not dispose of electrical appliances as unsorted municipal waste; use separate collection
facilities. Contact your local government for information regarding the collection systems
available. If electrical appliances are disposed of in landfills or dumps, hazardous substances
can leak into the groundwater and get into the food chain, damaging your health and
well-being. When replacing old appliances with a new one, the retailer is legally obligated to
take back your old appliances for disposal free of charge.

vi

vii
Safety Summary
The following general safety precautions must be observed during all phases of operation,
service, and repair of this instrument. Failure to comply with these precautions or specific
WARNINGS given elsewhere in this manual will violate safety standards of design,
manufacture, and intended use of the instrument. Chroma assumes no liability for the
customer’s failure to comply with these requirements.
BEFORE APPLYING POWER
Verify that the power is set to match the rated input of this power supply.
PROTECTIVE GROUNDING
Make sure to connect the protective grounding to prevent an electric
shock before turning on the power.
NECESSITY OF PROTECTIVE GROUNDING
Never cut off the internal or external protective grounding wire, or
disconnect the wiring of protective grounding terminal. Doing so will
cause a potential shock hazard that may bring injury to a person.
FUSES
Only fuses with the required rated current, voltage, and specified type
(normal blow, time delay, etc.) should be used. Do not use repaired
fuses or short-circuited fuse holders. To do so could cause a shock or
fire hazard.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or
fumes. The instrument should be used in an environment of good
ventilation.
DO NOT REMOVE THE COVER OF THE INSTRUMENT
Operating personnel must not remove the cover of the instrument.
Component replacement and internal adjustment can be done only by
qualified service personnel.
1. Lethal voltage. AC sources can supply 707 V peak at their output.
2. DEATH on contact may result if the output terminals or circuits
connected to the output are touched when power is applied.
WARNING

viii
Safety Symbols
DANGER – High voltage.
Explanation: To avoid injury, death of personnel, or damage to
the instrument, the operator must refer to the explanation in the
instruction manual.
High temperature: This symbol indicates the temperature is
hazardous to human beings. Do not touch it to avoid any
personal injury.
Protective grounding terminal: This symbol indicates that the
terminal must be connected to ground before operation of the
equipment to protect against electrical shock in case of a fault.
Functional grounding: To identify an earth (ground) terminal in
cases where the protective ground is not explicitly stated. This
symbol indicates the power connector does not provide
grounding.
Frame or chassis: To identify a frame or chassis terminal.
Alternating Current (AC)
Direct Current (DC) / Alternating Current (AC)
Direct Current (DC)
Push-on/Push-off power switch
The WARNING sign highlights an essential operating or
maintenance procedure, practice, condition, statement, etc.,
which if not strictly observed, could result in injury to, or death of,
personnel or long term health hazards.
The CAUTION sign highlights an essential operating or
maintenance procedure, practice, condition, statement, etc.,
which if not strictly observed, could result in damage to, or
destruction of, equipment.
The Notice sign highlights an essential operating or maintenance
procedure, condition, or statement.
WARNING
CAUTION

ix
Revision History
The following lists the additions, deletions and modifications in this manual at each revision.
Date
Version
Revised Sections
May 1998
1.0
Complete this manual
May 2005
1.1
Change the address and phone number of Chroma
Dec. 2007
1.2
Add the following
-“Material Contents Declaration”
-NOTICE in the section of “The Setting of Output Relay”.
Modify the following
-the Accuracy of Voltage, Current and Power Factor of INPUT
RATINGS and Range(peak) of Current/phase in the section of
“Specifications”.
-Max. Current in the section of “Ratings”.
-Figure 2-2-a-d and Table 2-1 in the section of “Output
Connection”.
Del NOTICE in the section of “Remote Sense”.
Mar. 2008
1.3
Interchange the section of “Remote Sense”and “External
Reference”.
Oct. 2008
1.4
Add the chapter of “Appendix B Pin Assignment of TTL I/O”.
Modify the following:
-the description of “B. Input/Output” in the section of “Key
Features”.
-the figure and description in the section of “The Rear Panel”.
-the description in the section of “Ratings”.
-the figures in the sections of “The Setting of Configuration”& “
The
Setting of Setup”.
-“Hardware Protection Table List” in the section of “Protection”.
-the description in the section of “Common Command Dictionary”.
-the description in the section of “Instrument Command
Dictionary”.
-the description in the section of “Command Summary”.
Jul. 2014
1.5
Modify the following sections:
-“CE Declaration”
-the description of “Input Ratings” in the section of “Specifications”
.
-“Figure 1-1, 1-2 and Table 1-2” in the section of “Names of Parts”
.
-“Input Voltage Range description and Figure 2-1”
in the section of
“Requirements of Input Power”.
-
“Figure 2-2” in the section “Output Connection”.
Oct. 2015
1.6
Delete the word of “remote inhibit”in the manual.

Programmable AC Source 6460/6463/6490 User’s Manual
xi
Table of Contents
1. General Information ..................................................................................................... 1-1
1.1 Introduction.........................................................................................................1-1
1.2 Description..........................................................................................................1-1
1.3 Key Features ...................................................................................................... 1-1
1.4 Specifications......................................................................................................1-2
1.5 Names of Parts...................................................................................................1-4
1.5.1 The Front Panel.......................................................................................1-4
1.5.2 The Rear Panel.......................................................................................1-6
2. Installation....................................................................................................................2-1
2.1 Inspection ...........................................................................................................2-1
2.2 Preparation for the Use....................................................................................... 2-1
2.3 Requirements of Input Power..............................................................................2-1
2.3.1 Ratings....................................................................................................2-1
2.3.2 Input Connection.....................................................................................2-1
2.4 Output Connection.............................................................................................. 2-3
2.5 Remote Sense Connection .................................................................................2-5
2.6 The Procedures of Power-on .............................................................................. 2-5
3. Local Operation............................................................................................................ 3-1
3.1 Introduction.........................................................................................................3-1
3.2 Operation through Keypad.................................................................................. 3-1
3.2.1 Introduction .............................................................................................3-1
3.2.2 Data Entry...............................................................................................3-2
3.2.3 Output Setting .........................................................................................3-3
3.2.4 The Setting of Configuration.................................................................... 3-6
3.2.5 The Setting of Setup................................................................................3-9
3.3 Applications ...................................................................................................... 3-11
3.3.1 The Execution of Output........................................................................ 3-11
3.4 Measurement.................................................................................................... 3-12
3.4.1 The Selection of Measurement Items.................................................... 3-13
3.4.2 Measurement Functions........................................................................ 3-15
3.5 Protection.......................................................................................................... 3-15
4. Theory of Operation..................................................................................................... 4-1
4.1 General Information............................................................................................4-1
4.2 Description of Overall System............................................................................. 4-1
5. Remote Operation ........................................................................................................ 5-1
5.1 General Information............................................................................................5-1
5.1.1 Setting the GPIB Address and RS-232C Parameters.............................. 5-1
5.1.2 Wire Connection of RS-232C .................................................................. 5-2
5.2 The GPIB Capability of the AC Source................................................................ 5-2
5.3 Introduction to Programming...............................................................................5-3
5.3.1 Conventions ............................................................................................5-3
5.3.2 Numerical Data Formats.......................................................................... 5-3
5.3.3 Boolean Data Format .............................................................................. 5-3
5.3.4 Character Data Format............................................................................ 5-3
5.3.5 Basic Definition........................................................................................ 5-4
5.4 Traversal of the Command Tree ......................................................................... 5-5
5.5 Execution Order..................................................................................................5-5
5.6 The Commands of the AC Source ...................................................................... 5-6
5.6.1 Common Command Dictionary................................................................ 5-6
5.6.2 Instrument Command Dictionary ............................................................. 5-8

Programmable AC Source 6460/6463/6490 User’s Manual
xii
5.7 Command Summary......................................................................................... 5-13
Appendix A Pin Assignment of User Interface............................................................A-1
Appendix B Pin Assignment of TTL I/O........................................................................B-1

General Information
1-1
1. General Information
1.1 Introduction
This manual describes five major things of the Chroma 6460/6463/6490 programmable ac
source. They are specifications, installation, instructions on operation and theory of
operation. In the manual the term, AC source, is applied to the Chroma 6460/6463/6490
programmable ac source.
1.2 Description
The series of AC source is a high efficiency programmable ac power source, which is capable
of simulating a wide variety of AC line conditions and accurate measurement of power. The
microprocessor-controlled waveform oscillator generates accurate, stable output voltage and
frequency. The PWM design of power stage allows for full volt-ampere into loads. The
front panel has both RPG (rotary pulse generator) and keypad controls for setting the output
voltage and frequency. The LCD provides a complete operating state of the unit to the user.
Remote programming is accomplished either through the GPIB bus or the RS-232C serial
port.
1.3 Key Features
A. Configuration
Local operation from the keypad on the front panel.
Remote operation via GPIB or RS-232C interface.
Protection against Over-power, Over-load, Over-temperature, and Fan-fail.
Temperature-controlled fan speed.
Built-in output isolation relays.
B. Input/Output
Selective output voltage with full scale of 150V/300V for 6463/6490, and
150V/300V/500V for 6460.
Remote control by the use of analog voltage reference.
Full-page display of setup and measurement results.
Measurement of V, I, F, P, CF, and PF.
AC ON/OFF output signal

Programmable AC Source 6460/6463/6490 User’s Manual
1-2
1.4 Specifications
The operation specifications of the model 6460/6463/6490 are listed below (on the next page).
All specifications have been tested according to the standard Chroma test procedures. All
specifications are based on a remote sense connection, 25 ±1°C, and resistor load unless
specified otherwise.
Model
6460
6463
6490
OUTPUT PHASE
1 (parallel or series)
1 or 3 selectable
1 or 3 selectable
OUTPUT RATINGS
Power / Phase
6000VA
2000VA
3000VA
Voltage
Range/Phase
150V/300V(parallel)
300V/500V(series)
150V/300V
150V/300V
Accuracy
0.2% reading + 0.2%
of F.S.
0.2% reading +
0.2% of F.S.
0.2% reading + 0.2%
of F.S.
Resolution
0.1V
0.1V
0.1V
Distortion
1%
1%
1%
Line Regulation
0.1%
0.1%
0.1%
Load Regulation
0.2%(series)
0.8 %(parallel)
0.2%(3 phases)
0.8%( 1 phase)
0.2%(3 phases)
0.8%( 1 phase)
Temp. coefficient
0.02%per°C
0.02%per°C
0.02%per°C
Max. current/phase
rms
60A/30A/15A
(150V/300V/500V)
20A/10A
(150V/300V)
30A/15A
(150V/300V)
peak
180A/90A/45A(45-100Hz)
150A/75A/38A(>100-1KHz)
60A/30A (45-100Hz)
50A/25A(>100-1KHz)
90A/45A(45-100Hz)
75A/38A(>100-1KHz)
Frequency
Range
45-1KHz
45-1KHz
45-1KHz
Accuracy
0.15%
0.15%
0.15%
Resolution
0.01Hz (45-99.9Hz)
0.1Hz (100-999.9Hz)
0.01Hz (45-99.9Hz)
0.1Hz (100-999.9Hz)
0.01Hz (45-99.9Hz)
0.1Hz (100-999.9Hz)
INPUT RATINGS
Voltage Range
200-240V±10%,3ϕ
200-240V±10%,3ϕ
200-240V±10%,3ϕ
Frequency Range
47-63Hz
47-63Hz
47-63Hz
Current
23A Max./Phase
15A Max./Phase
23A Max./Phase
Power Factor
0.98 Min.under full load 0.97 Min.under full load 0.98 Min.under full load
MEASUREMENT
Voltage/Phase
Range
0-150V/0-300V
0-150V/0-300V
0-150V/0-300V
Accuracy(rms)
0.1%F.S. + 0.25%
0.1%F.S. + 0.25%
0.1%F.S. + 0.25%
Resolution
0.1V
0.1V
0.1V
Current/phase
Range(peak)
0-280A
0-100A
0-140A
Accuracy(rms)
0.1%F.S. + 0.4%
0.15%F.S. + 0.4%
0.1%F.S. + 0.4%
Accuracy(peak)
0.2%F.S. + 0.4%
0.3%F.S. + 0.4%
0.2%F.S. + 0.4%
Resolution
0.01A
0.01A
0.01A
Power/phase
Accuracy
1%F.S.(CF<6)
1%F.S.(CF<6)
1%F.S.(CF<6)
Resolution
0.01W
0.01W
0.01W
Frequency

General Information
1-3
Range
45-1K Hz
45-1K Hz
45-1K Hz
Accuracy
0.01%+2count
0.01%+2count
0.01%+2count
Resolution
0.01Hz
0.01Hz
0.01Hz
OTHERS
Efficiency
80% typ.
80% typ.
80% typ.
Protection
OPP, OCP, OTP,
FAN Fail
OPP, OCP, OTP,
FAN Fail
OPP, OCP, OTP,
FAN Fail
Temperature
Operating
0-40°C
0-40°C
0-40°C
Storage
-40 to +85°C
-40 to +85°C
-40 to +85°C
SAFETY
CE (INCLUDE LVD and EMC REQUIREMENT)
Note
1. Maximum distortion for voltage varies from half to full range with linear load.
2. Test with sinewave and remote sense.

Programmable AC Source 6460/6463/6490 User’s Manual
1-4
1.5 Names of Parts
1.5.1 The Front Panel
Figure 1-1 The Front Panel

General Information
1-5
Table 1-1 The Description of the Front Panel
Item
Symbol
Description
1
Display: The LCD is to display configuration, output setup,
and measurement results.
2
Soft keys: Five soft keys are located at the right side of the
LCD. Each of them gives a command as indicated on the
corresponding command block on the LCD next to the soft
keys to guide the user unless that block is blank. Each
valid soft key denotes the command string lying within the
symbol of a soft key; for example, CONFIG represents that
the soft key next to command block “CONFIG” is for
entering configuration menu.
3



Cursor moving keys: These four keys are to move the
cursor to different directions respectively. In normal mode
(non-editing mode), pressing any of these four keys will
change the place of the cursor. In editing mode, pressing
or will move the cursor from digit to digit for the
programming of a parameter.
4 AEditE
AEditE A command key: Pressing this key will make the user
enter into or quit from editing mode while he is
programming V or F.
5 ALocalE
ALocalE A command key: Pressing this key
will switch the
control of the AC source from remote operation to
operation through the keypad on the front panel.
6 A▲E A and A▼EUp and down keys: Press A▲E A to search upward for the
desired programming parameter. Press ▼to search
downward.
7 0 to 9 , and 
Numeric and decimal keys: The user can program
numeric data by pressing the digital keys and the decimal
key.
8 ENTER
ENTER key: It is to confirm the setting of parameters.
9
RPG: The user can input programming data or options by
turning the RPG to the desired ones.
10
Airflow inlets: Cool airflow enters the AC source through
these holes.
11
Main power switch: It is to power on or off.

Programmable AC Source 6460/6463/6490 User’s Manual
1-6
1.5.2 The Rear Panel