Series 2230G
Triple-Channel Power Supplies
User’s Manual
2230G-900-01 Rev. A / June 2018
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
*P2230G-900-01A*
2230G-900-01A
Series 2230G
Triple-Channel Power Supplies
User's Manual
© 2018, Keithley Instruments, LLC
Cleveland, Ohio, U.S.A.
All rights reserved.
Any unauthorized reproduction, photocopy, or use of the information herein, in whole or in part,
without the prior written approval of Keithley Instruments, LLC, is strictly prohibited.
These are the original instructions in English.
All Keithley Instruments product names are trademarks or registered trademarks of Keithley
Instruments, LLC. Other brand names are trademarks or registered trademarks of their respective
holders.
Microsoft, Visual C++, Excel, and Windows are either registered trademarks or trademarks of
Microsoft Corporation in the United States and/or other countries.
Document number: 2230G-900-01 Rev. A / June 2018
Safety precautions
The following safety precautions should be observed before using this product and any associated instrumentation. Although
some instruments and accessories would normally be used with nonhazardous voltages, there are situations where hazardous
conditions may be present.
This product is intended for use by personnel who recognize shock hazards and are familiar with the safety precautions required
to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the
product. Refer to the user documentation for complete product specifications.
If the product is used in a manner not specified, the protection provided by the product warranty may be impaired.
The types of product users are:
Responsible body is the individual or group responsible for the use and maintenance of equipment, for ensuring that the
equipment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.
Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the
instrument. They must be protected from electric shock and contact with hazardous live circuits.
Maintenance personnel perform routine procedures on the product to keep it operating properly, for example, setting the line
voltage or replacing consumable materials. Maintenance procedures are described in the user documentation. The procedures
explicitly state if the operator may perform them. Otherwise, they should be performed only by service personnel.
Service personnel are trained to work on live circuits, perform safe installations, and repair products. Only properly trained
service personnel may perform installation and service procedures.
Keithley products are designed for use with electrical signals that are measurement, control, and data I/O connections, with low
transient overvoltages, and must not be directly connected to mains voltage or to voltage sources with high transient
overvoltages. Measurement Category II (as referenced in IEC 60664) connections require protection for high transient
overvoltages often associated with local AC mains connections. Certain Keithley measuring instruments may be connected to
mains. These instruments will be marked as category II or higher.
Unless explicitly allowed in the specifications, operating manual, and instrument labels, do not connect any instrument to mains.
Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test
fixtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than
30 V RMS, 42.4 V peak, or 60 VDC are present. A good safety practice is to expect that hazardous voltage is present in any
unknown circuit before measuring.
Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators
are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential
human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If
the circuit is capable of operating at or above 1000 V, no conductive part of the circuit may be exposed.
Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedance-limited
sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective
devices to limit fault current and voltage to the card.
Before operating an instrument, ensure that the line cord is connected to a properly-grounded power receptacle. Inspect the
connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.
When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input
power disconnect device must be provided in close proximity to the equipment and within easy reach of the operator.
For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under
test. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting
cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.
Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth)
ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the
voltage being measured.
For safety, instruments and accessories must be used in accordance with the operating instructions. If the instruments or
accessories are used in a manner not specified in the operating instructions, the protection provided by the equipment may be
impaired.
Do not exceed the maximum signal levels of the instruments and accessories. Maximum signal levels are defined in the
specifications and operating information and shown on the instrument panels, test fixture panels, and switching cards.
When fuses are used in a product, replace with the same type and rating for continued protection against fire hazard.
Chassis connections must only be used as shield connections for measuring circuits, NOT as protective earth (safety ground)
connections.
If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the use
of a lid interlock.
If a
The
screw is present, connect it to protective earth (safety ground) using the wire recommended in the user documentation.
symbol on an instrument means caution, risk of hazard. The user must refer to the operating instructions located in the
user documentation in all cases where the symbol is marked on the instrument.
The
symbol on an instrument means warning, risk of electric shock. Use standard safety precautions to avoid personal
contact with these voltages.
The
The
If this
symbol on an instrument shows that the surface may be hot. Avoid personal contact to prevent burns.
symbol indicates a connection terminal to the equipment frame.
symbol is on a product, it indicates that mercury is present in the display lamp. Please note that the lamp must be
properly disposed of according to federal, state, and local laws.
The WARNING heading in the user documentation explains hazards that might result in personal injury or death. Always read
the associated information very carefully before performing the indicated procedure.
The CAUTION heading in the user documentation explains hazards that could damage the instrument. Such damage may
invalidate the warranty.
The CAUTION heading with the symbol in the user documentation explains hazards that could result in moderate or minor
injury or damage the instrument. Always read the associated information very carefully before performing the indicated
procedure. Damage to the instrument may invalidate the warranty.
Instrumentation and accessories shall not be connected to humans.
Before performing any maintenance, disconnect the line cord and all test cables.
To maintain protection from electric shock and fire, replacement components in mains circuits — including the power
transformer, test leads, and input jacks — must be purchased from Keithley. Standard fuses with applicable national safety
approvals may be used if the rating and type are the same. The detachable mains power cord provided with the instrument may
only be replaced with a similarly rated power cord. Other components that are not safety-related may be purchased from other
suppliers as long as they are equivalent to the original component (note that selected parts should be purchased only through
Keithley to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement
component, call a Keithley office for information.
Unless otherwise noted in product-specific literature, Keithley instruments are designed to operate indoors only, in the following
environment: Altitude at or below 2,000 m (6,562 ft); temperature 0 °C to 50 °C (32 °F to 122 °F); and pollution degree 1 or 2.
To clean an instrument, use a cloth dampened with deionized water or mild, water-based cleaner. Clean the exterior of the
instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that
consist of a circuit board with no case or chassis (e.g., a data acquisition board for installation into a computer) should never
require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board
should be returned to the factory for proper cleaning/servicing.
Safety precaution revision as of June 2017.
Table of contents
Introduction ................................................................................................................ 1-1
Welcome .............................................................................................................................. 1-1
Products ............................................................................................................................... 1-1
Extended warranty ............................................................................................................... 1-2
Contact information .............................................................................................................. 1-2
Key features ......................................................................................................................... 1-2
Accessories .......................................................................................................................... 1-3
Available services ................................................................................................................ 1-4
General ratings ..................................................................................................................... 1-4
Wire specifications ............................................................................................................... 1-4
Quick reference .......................................................................................................... 2-1
Front-panel overview ............................................................................................................ 2-1
Rear-panel overview ............................................................................................................ 2-2
Install the system ................................................................................................................. 2-3
Dimensions ............................................................................................................................... 2-3
Select the proper line voltage .............................................................................................. 2-4
Connect the 2230G-30-3 power cord ................................................................................... 2-5
Connect the 2230G-30-6/2230G-60-3 power cord .............................................................. 2-5
Turn the power supply on and off ........................................................................................ 2-6
If the power supply does not turn on .................................................................................... 2-7
Self-test procedure ............................................................................................................... 2-7
Self-test error messages ........................................................................................................... 2-7
Remote communications interfaces ..................................................................................... 2-8
GPIB interface ........................................................................................................................... 2-8
USB interface ............................................................................................................................ 2-8
RS-232 interface ....................................................................................................................... 2-9
Function and features ................................................................................................ 3-1
Introduction .......................................................................................................................... 3-1
Front-panel operation ........................................................................................................... 3-1
Front-panel keypad ................................................................................................................... 3-2
Turn the 2230G output on ......................................................................................................... 3-3
Turn the 2230G output off ......................................................................................................... 3-3
Navigation wheel ....................................................................................................................... 3-3
Display indicators ...................................................................................................................... 3-4
Menu description .................................................................................................................. 3-4
Basic settings ....................................................................................................................... 3-5
Set the voltage output or voltage limit for a specific channel ..................................................... 3-5
Set the current output or current limit for a specific channel ..................................................... 3-6
Table of contents
User's Manual
Series 2230G Triple-Channel Power Supplies
Save and recall setups .............................................................................................................. 3-6
Restore default settings ....................................................................................................... 3-6
Enable or disable channels .................................................................................................. 3-7
Set the maximum voltage..................................................................................................... 3-7
Set the output timers ............................................................................................................ 3-8
Set the key lock status ......................................................................................................... 3-8
Track .................................................................................................................................... 3-9
Combine ............................................................................................................................. 3-10
V1+V2 combination for series connections ............................................................................. 3-11
I1+I2 parallel ........................................................................................................................... 3-12
I2+I3 parallel ........................................................................................................................... 3-13
I1+I2+I3 parallel ...................................................................................................................... 3-14
Turn off channel combination .................................................................................................. 3-15
User settings ...................................................................................................................... 3-15
Restore last output state on power up ..................................................................................... 3-15
Save last ................................................................................................................................. 3-15
Key beep ................................................................................................................................. 3-16
Navigation wheel lock ............................................................................................................. 3-16
Communication port ................................................................................................................ 3-16
System information ............................................................................................................ 3-17
Check the error log .................................................................................................................. 3-17
Check the firmware version ..................................................................................................... 3-17
Check the serial number ......................................................................................................... 3-17
Overtemperature protection ............................................................................................... 3-18
Use the rear-panel terminals .............................................................................................. 3-18
Remote sense connections ..................................................................................................... 3-19
Local sense connections ......................................................................................................... 3-20
Introduction to SCPI .................................................................................................. 4-1
Standard Commands for Programmable Instruments ......................................................... 4-1
Conventions ......................................................................................................................... 4-1
Commands to use with the Series 2230G ........................................................................... 4-2
Types of SCPI messages..................................................................................................... 4-2
Command execution rules ................................................................................................... 4-3
Case sensitivity .................................................................................................................... 4-3
Long-form and short-form versions ...................................................................................... 4-4
The message unit ................................................................................................................. 4-4
Headers .................................................................................................................................... 4-4
Queries ..................................................................................................................................... 4-4
Message unit separator ............................................................................................................. 4-5
Root specifier ............................................................................................................................ 4-5
Message terminator .................................................................................................................. 4-6
Multiple commands in a message ........................................................................................ 4-6
Movement in the subsystem ...................................................................................................... 4-7
Including common commands ............................................................................................. 4-7
Series 2230G
contents
Triple-Channel Power Supplies User's Manual Table of
SCPI data formats ................................................................................................................ 4-8
Talking and listening data formats ............................................................................................. 4-8
Suffixes and multipliers ............................................................................................................. 4-8
Response messages ............................................................................................................ 4-9
Response data types ................................................................................................................ 4-9
Getting a response message .................................................................................................... 4-9
Multiple response messages ..................................................................................................... 4-9
Response message terminator (RMT) ...................................................................................... 4-9
Message exchange protocol ................................................................................................... 4-10
SCPI command completion ............................................................................................... 4-10
Using device clear .............................................................................................................. 4-10
Default setup ...................................................................................................................... 4-11
SCPI command reference .......................................................................................... 5-1
Series 2230G commands..................................................................................................... 5-1
Common commands ............................................................................................................ 5-1
*CLS (no query form) ................................................................................................................ 5-2
*ESE ......................................................................................................................................... 5-3
*ESR? (query only) ................................................................................................................... 5-3
*IDN? (query only) ..................................................................................................................... 5-4
*OPC ......................................................................................................................................... 5-5
*PSC ......................................................................................................................................... 5-5
*RCL (no query form) ................................................................................................................ 5-6
*RST (no query form) ................................................................................................................ 5-7
*SAV (no query form) ................................................................................................................ 5-7
*SRE ......................................................................................................................................... 5-8
*STB? (query only) .................................................................................................................... 5-9
*TST? (query only) .................................................................................................................... 5-9
*WAI ........................................................................................................................................ 5-10
CALibration subsystem ...................................................................................................... 5-11
CALibrate:CLEar ..................................................................................................................... 5-11
CALibrate:CURRent[:DATA] ................................................................................................... 5-11
CALibrate:CURRent:LEVel ..................................................................................................... 5-12
CALibrate:INITital .................................................................................................................... 5-13
CALibrate:SAVe ...................................................................................................................... 5-13
CALibrate:SECure[:STATe]..................................................................................................... 5-14
CALibrate:STRing ................................................................................................................... 5-15
CALibrate:VOLTage[:DATA] ................................................................................................... 5-15
CALibrate:VOLTage:LEVel ..................................................................................................... 5-16
INSTrument subsystem...................................................................................................... 5-17
INSTrument:COMBine? .......................................................................................................... 5-17
INSTrument:COMBine:OFF .................................................................................................... 5-18
INSTrument:COMBine:PARallel .............................................................................................. 5-18
INSTrument:COMBine:SERies ............................................................................................... 5-19
INSTrument:COMBine:TRACk ................................................................................................ 5-19
INSTrument:NSELect .............................................................................................................. 5-20
INSTrument[:SELect] .............................................................................................................. 5-21
MEASurement subsystem ................................................................................................. 5-22
FETCh[:SCALar]:CURRent[:DC]? ........................................................................................... 5-22
FETCh[:SCALar]:POWer[:DC]? .............................................................................................. 5-22
FETCh[:SCALar][:VOLTage][:DC]? ......................................................................................... 5-23
MEASure[:SCALar]:CURRent[:DC]? ....................................................................................... 5-24
MEASure[:SCALar]:POWer[:DC]? .......................................................................................... 5-24
Table of contents
User's Manual
Series 2230G Triple-Channel Power Supplies
MEASure[:SCALar][:VOLTage][:DC]? ..................................................................................... 5-25
SOURce subsystem ........................................................................................................... 5-26
[SOURce:]APPLy .................................................................................................................... 5-26
[SOURce:]CHANnel:OUTPut[:STATe] .................................................................................... 5-27
[SOURce:]CURRent[:LEVel]:DOWN[:IMMediate][:AMPLitude] ............................................... 5-27
[SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude] ........................................................... 5-28
[SOURce:]CURRent[:LEVel][:IMMediate]:STEP[:INCRement] ................................................ 5-29
[SOURce:]CURRent[:LEVel]:UP[:IMMediate][:AMPLitude] ..................................................... 5-29
[SOURce:]OUTPut:ENABle..................................................................................................... 5-30
[SOURce:]OUTPut:PARallel[:STATe] ..................................................................................... 5-31
[SOURce:]OUTPut:PROTection:CLEar .................................................................................. 5-31
[SOURce:]OUTPut:SERies[:STATe] ....................................................................................... 5-32
[SOURce:]OUTPut[:STATe][:ALL] ........................................................................................... 5-33
[SOURce:]OUTPut:TIMer:DELay ............................................................................................ 5-33
[SOURce:]OUTPut:TIMer[:STATe] .......................................................................................... 5-34
[SOURce:]VOLTage[:LEVel]:DOWN[:IMMediate][:AMPLitude] ............................................... 5-35
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude] ........................................................... 5-35
[SOURce:]VOLTage[:LEVel][:IMMediate]:STEP[:INCRement]................................................ 5-36
[SOURce:]VOLTage[:LEVel]:UP[:IMMediate][:AMPLitude] ..................................................... 5-37
[SOURce:]VOLTage:LIMit[:LEVel] .......................................................................................... 5-37
[SOURce:]VOLTage:LIMit:STATe ........................................................................................... 5-38
STATus subsystem ............................................................................................................ 5-39
STATus:OPERation:CONDition? ............................................................................................ 5-39
STATus:OPERation:ENABle ................................................................................................... 5-39
STATus:OPERation[:EVENt]? ................................................................................................. 5-40
STATus:OPERation:INSTrument:ENABle .............................................................................. 5-41
STATus:OPERation:INSTrument[:EVENt]? ............................................................................ 5-41
STATus:OPERation:INSTrument:ISUMmary<X>:CONDition? ................................................ 5-42
STATus:OPERation:INSTrument:ISUMmary<X>:ENABle ...................................................... 5-43
STATus:OPERation:INSTrument:ISUMmary<X>[:EVENt]? .................................................... 5-43
STATus:PRESet ..................................................................................................................... 5-44
STATus:QUEStionable:CONDition? ....................................................................................... 5-45
STATus:QUEStionable:ENABle .............................................................................................. 5-45
STATus:QUEStionable[:EVENt]? ............................................................................................ 5-46
STATus:QUEStionable:INSTrument:ENABle .......................................................................... 5-46
STATus:QUEStionable:INSTrument[:EVENt]? ........................................................................ 5-47
STATus:QUEStionable:INSTrument:ISUMmary<X>:CONDition? ........................................... 5-48
STATus:QUEStionable:INSTrument:ISUMmary<X>:ENABle ................................................. 5-48
STATus:QUEStionable:INSTrument:ISUMmary<X>[:EVENt]? ............................................... 5-49
Status register ............................................................................................................ 6-1
Error descriptions ...................................................................................................... 7-1
SYSTem subsystem ........................................................................................................... 5-50
SYSTem:BEEPer .................................................................................................................... 5-50
SYSTem:COMMunicate:GPIB:RDEVice:ADDRess? .............................................................. 5-50
SYSTem:ERRor? .................................................................................................................... 5-51
SYSTem:LOCal ....................................................................................................................... 5-51
SYSTem:REMote .................................................................................................................... 5-52
SYSTem:RWLock[:STATe] ..................................................................................................... 5-52
SYSTem:VERSion? ................................................................................................................ 5-53
Status register overview ....................................................................................................... 6-1
Error information .................................................................................................................. 7-1
Wire specifications ................................................................... 1-4
2230G-30-3
Triple-Channel Power Supplies, 2 channels: 30 V, 3 A, 1 channel:
5 V, 3 A, 375 W
2230G-60-3
Triple-Channel Power Supplies, 2 channels: 60 V, 3 A, 1 channel:
5 V, 3 A, 375 W
Welcome
Section 1
Introduction
In this section:
Welcome .................................................................................. 1-1
Products ................................................................................... 1-1
Extended warranty ................................................................... 1-2
Contact information .................................................................. 1-2
Key features ............................................................................. 1-2
Accessories .............................................................................. 1-3
Available services .................................................................... 1-4
General ratings ......................................................................... 1-4
Thank you for choosing a Keithley Instruments product. The Series 2230G Triple-Channel Power
Supplies (Models 2230G-30-3, 2230G-30-6, and 2230G-60-3) provide output power up to 195 W and
375 W. Each power supply has three isolated power channels, allowing you to power circuits with
different references or polarities.
The Series 2230G supports remote sensing and has rear-panel connections to make automated test
more convenient. Built in RS-232, USB, and GPIB interfaces allow multiple communication methods.
The Series 2230G power supplies cover a wide range of applications in a space-saving 2U half-rack
size.
Products
This manual contains information about the models listed in the following table.
Model Description
2230G-30-6
5 V, 3 A, 195 W
Triple-Channel Power Supplies, 2 channels: 30 V, 6 A, 1 channel:
Section
1: Introduction Series 2230G Triple-Channel Power Supplies
User's Manual
CH1
30 V
3 A
CH2
30 V
3 A
CH3
5 V
3 A
CH1
30 V
6 A
CH2
30 V
6 A
CH3
5 V
3 A
CH1
60 V
3 A
CH2
60 V
3 A
CH3
5 V
3 A
Extended warranty
Additional years of warranty coverage are available on many products. These valuable contracts
protect you from unbudgeted service expenses and provide additional years of protection at a fraction
of the price of a repair. Extended warranties are available on new and existing products. Contact your
local Keithley Instruments office, sales partner, or distributor for details.
Key features
The Series 2230G has the following features:
• Power output up to 195 W or 375 W in a space-saving 2U high, half-rack wide enclosure
• Three programmable isolated channels
• Remote sensing for maximum output accuracy in automated test
• Rear-panel connectors for convenient wiring of a test system in a rack
• Built-in RS-232, USB, and GPIB communication interfaces
• 0.03% basic voltage accuracy
• 0.1% basic current accuracy
• Less than 4 mV peak-to-peak ripple and noise
Model Channel Voltage Current
2230G-30-3
2230G-30-6
2230G-60-3
1-2 2230G-900-01 Rev. A / June 2018
Series 2230G
Introduction
Calibration report
0011655XX
USB cable
1746841XX
2230G-HRM Harmonic Reduction Module
0162140XX
15-terminal mating connector with three sense-source
connectors
1161283XX
Calibration report
0011655XX
connectors
Universal rack mount kit
4299-7
USB cable, 1 m (3.2 ft)
USB-B-1
Option A0
North America and South America. The factory sets the line-voltage selector switch
to 110 V.
Option A1
Universal Euro. The factory sets the line-voltage selector switch to 220 V.
Option A2
United Kingdom. The factory sets the line-voltage selector switch to 220 V.
Option A3
Australia. The factory sets the line-voltage selector switch to 220 V.
Option A4
Chile, Italy. The factory sets the line-voltage selector switch to 220 V.
Option A5
Switzerland. The factory sets the line-voltage selector switch to 220 V.
Option A7
Denmark. The factory sets the line-voltage selector switch to 220 V.
Option A8
Israel. The factory sets the line-voltage selector switch to 220 V.
Option A10
China.
Option A11
India. The factory sets the line-voltage selector switch to 220 V.
Option A13
Macao, Pakistan, Africa. The factory sets the line-voltage selector switch to 220 V.
Option E1
Europe bundle: United Kingdom, mainland Europe, and Switzerland.
The factory sets the line-voltage selector switch to 220 V.
Accessories
The following items are standard accessories that are included with your Series 2230G-30-6 or
2230G-60-3 order.
Accessory Part number
Line cord 1747172XX
The following items are standard accessories that are included with your Series 2230G-30-3 order.
Accessory Part number
USB cable 1746841XX
Triple-Channel Power Supplies User's Manual Section 1:
The following items are optional accessories that may be included with your Series 2230G order.
Accessory Part number
15-terminal mating connector with three sense-source
1161283XX
You will also get one of the following power cords.
Option Description
Option A9
Argentina. The factory sets the line-voltage selector switch to 220 V.
The factory sets the line-voltage selector switch to 220 V.
2230G-900-01 Rev. A / June 2018 1-3
Section
User's Manual
Power supply
2230G-30-3 AC power input level:
Maximum current: 10 A
Floating voltage
Up to 400 V (DC + peak AC) between protective earth (safety ground)
and any output terminal
Operating altitude
Maximum 2000 m (6562 ft ) above sea level
Environmental conditions
For indoor use only
Installation category:
Maximum current (A)
40
25
20
13
10 7 5
3.5
2.5
1.7
1: Introduction Series 2230G Triple-Channel Power Supplies
Available services
For the most recent list of available services and accessories, upgrades, and options for your
instrument, visit tek.com/keithley
General ratings
The Series 2230G general ratings and connections are listed in the following table.
Category Specification
.
110 to 120 VAC: 99 VAC to 132 VAC
220 to 240 VAC:198 VAC to 264 VAC
50 Hz or 60 Hz
2230G-30-6/2230G-60-3 AC power input level:
120 VAC: 108 VAC to 132 VAC
220 to 240 VAC: 198 VAC to 264 VAC
50 Hz or 60 Hz
Maximum power consumption:
2230G-30-3: 700 VA
2230G-30-6, 2230G-60-3: 1000 VA
Wire specifications
Refer to the table below for the maximum current allowed for the various gauges of copper wire.
AWG wire gauge 10 12 14 16 18 20 22 24 26 28
The table above lists current carrying capacity of single wire at working temperature of 30 °C. The
values in this table conform with the American Wire Gauge (AWG) standard and are provided for
reference only.
Operating: 0 °C to 40 °C, full accuracy with maximum 80% relative
humidity at up to 40 °C, non-condensing
Storage: –20 °C to 70 °C, 10% to 85% relative humidity at up to
40 °C and 5% to 60% relative humidity above 40 °C up to 70 °C
Pollution degree: 2
II
1-4 2230G-900-01 Rev. A / June 2018
Remote communications interfaces ......................................... 2-8
Section 2
Quick reference
In this section:
Front-panel overview ................................................................ 2-1
Rear-panel overview ................................................................ 2-2
Install the system ..................................................................... 2-3
Select the proper line voltage ................................................... 2-4
Connect the 2230G-30-3 power cord ....................................... 2-5
Connect the 2230G-30-6/2230G-60-3 power cord ................... 2-5
Turn the power supply on and off ............................................. 2-6
If the power supply does not turn on ........................................ 2-7
Self-test procedure ................................................................... 2-7
Front-panel overview
All of the Series 2230G power supplies have the same front panel. The Model 2230G-30-6 is shown
in the figure below; descriptions of the numbered items follow the figure.
Figure 1: Series 2230G front panel
Section
User's Manual
1
Vacuum fluorescent display (VFD)
2
Navigation wheel
3
Output terminals
4
Up, down, left, and right arrow keys; Enter, Save, and Recall function keys
5
Numeric keypad and Esc key
6
Function keys: Channel SELECT (CH1, CH2, CH3), voltage setting (V-Set), current setting
(I-Set), Menu, and OUTPUT On/Off keys
7
Power On/Off switch
2
RS-232 communication interface
3
USB communication interface
4
GPIB communication interface
5
AC power input socket (including fuse)
6
Remote sense terminals and the output terminals
2: Quick reference Series 2230G Triple-Channel Power Supplies
Number Description
Rear-panel overview
All of the Series 2230G power supplies have the same rear panel. The rear panel is shown in the
figure below; descriptions of the numbered items follow the figure.
Figure 2: Series 2230G rear panel
Number Description
1 Vent
2-2 2230G-900-01 Rev. A / June 2018
Series 2230G
Quick reference
Triple-Channel Power Supplies User's Manual Section 2:
Install the system
When you receive your Series 2230G instrument, verify that you have received all of the items listed
in Standard accessories (on page 1-3
Do not lift or hold the instrument by the front bezel or any other protruding parts. If you do,
you may damage the instrument.
Dimensions
The dimensions of a Series 2230G power supply with no bumpers are:
• Width: 214.50 mm (8.44 in.)
• Height: 88.20 mm (3.47 in.)
• Depth: 456.60 mm (17.98 in.)
) and any other accessories that you ordered.
The following figure shows more detailed measurements for the Series 2230G.
2230G-900-01 Rev. A / June 2018 2-3
Section
User's Manual
2: Quick reference Series 2230G Triple-Channel Power Supplies
Figure 3: Series 2230G dimensions
Select the proper line voltage
Series 2230G power supplies have two line voltage ratings:
• 110 to 120 V for 2230G-30-3 or 120 V for 2230G-30-6 and 2230G-60-3
• 220 to 240 V
Select a proper line voltage according to the voltage of your facility. You can use the line selector
2-4 2230G-900-01 Rev. A / June 2018
switch on the bottom of the instrument to select the right voltage.
Series 2230G
Quick reference
Triple-Channel Power Supplies User's Manual Section 2:
The voltage ranges of the two line voltage ratings are:
• 110 to 120 VAC: 99 VAC to 132 VAC (2230G-30-3) or 120 VAC:108 VAC to 132 VAC
(2230G-30-6 or 2230G-60-3)
• 220 to 240 VAC: 198 VAC to 264 VAC
The power cord supplied with the Series 2230G power supply contains a separate protective earth
(safety ground) wire for use with grounded outlets. When proper connections are made, the
instrument chassis is connected to ground through the ground wire.
In addition, there is a ground terminal for each channel on the rear panel. When a channel is
enabled, its ground terminal should be connected to a protective earth. In the event of a failure, not
using a properly grounded protective earth and grounded outlet may result in personal injury or death
due to electric shock.
Do not replace detachable mains supply cords with inadequately rated cords. Failure to use properly
rated cords may result in personal injury or death due to electric shock.
When using the model 2230G-30-6 or 2230G-60-3 in a country that is a member of the European
Union, you need to use the 2230G-HRM inductor box in line with the mains power cord to comply
with European Union regulations. If you use the inductor, the functions of the instrument are not
affected.
Connect the 2230G-30-3 power cord
To connect the power cord:
1. Make sure that the front-panel power switch is in the OFF position.
2. Properly set the 110 V/220 V selector switch located on the bottom of the instrument.
3. Connect the female end of the supplied power cord to the AC receptacle on the rear panel.
4. Connect the plug of the power cord to a grounded AC outlet.
Connect the 2230G-30-6/2230G-60-3 power cord
When using the model 2230G-30-6 or 2230G-60-3 in a country that is a member of the European
Union, you need to use the 2230G-HRM inductor box in line with the mains power cord to comply with
European Union regulations, as shown in the following diagram.
2230G-900-01 Rev. A / June 2018 2-5
Section
User's Manual
2: Quick reference Series 2230G Triple-Channel Power Supplies
Figure 4: Connecting the power cord for 2230G-30-6 or 2230G-60-3
To connect the power cord:
1. Make sure that the front-panel power switch is in the OFF position.
2. Properly set the 110 V/220 V selector switch located on the bottom of the instrument.
3. Connect the female end of the supplied line cord (30 cm (11.81 in.)) to the AC receptacle on the
rear panel.
4. Connect the other end of the supplied line cord to the AC output of the 2230G-HRM inductor.
5. Connect the female end of the supplied power cord to the AC input of the 2230G-HRM inductor.
6. Connect the plug of the power cord to a grounded AC outlet.
Turn the power supply on and off
To turn the power supply on and off
1. Disconnect any devices under test (DUTs) from the Series 2230G before turning the instrument
on.
2. To turn your instrument on, press the front-panel power switch to put it in the ON position. The
display screen illuminates.
3. To turn your instrument off, press the front-panel power switch to put it in the OFF position.
To avoid fire or electric shock, ensure that the AC input voltage fluctuation does not exceed the
range of the selected AC line voltage rating.
Make sure that wire sizes are sufficient to ensure safety in the case of short circuit and full load test.
See Wire specifications (on page 1-4
) for wire size guidelines.
2-6 2230G-900-01 Rev. A / June 2018
Series 2230G
Quick reference
2230G-30-3
3.15 A T250 V
6.30 A T250 V
2230G-60-3
5 A T250 V
10 A T250 V
EEPROM Test Failure
The EEPROM is damaged.
User Data Lost
The latest operation state of the power supply is lost.
Channel Initialization Failed
A channel failed to respond to inbound data.
Calibration Data Lost
Calibration data cannot be read.
Factory Calibration Data Lost
The factory calibration data in EEPROM is lost.
Triple-Channel Power Supplies User's Manual Section 2:
If the power supply does not turn on
To troubleshoot a power-on failure:
1. Verify that the AC power cord is firmly plugged into the power connector on the rear-panel of the
Series 2230G.
2. Make sure that the AC power source you plugged the power supply into is energized, and then
turn the Series 2230G on.
3. Make sure the voltage selector switch is set according to the local voltage (110 VAC or 220 VAC).
Change the voltage setting if it is incorrect.
4. Verify that the correct power-line fuse is installed and functioning. If the fuse is damaged, replace
it with a fuse appropriate for your model of power supply (see the following table).
Model number Specifications (220 VAC) Specifications (110 VAC)
2230G-30-6 5 A T250 V 10 A T250 V
5. If you need additional assistance, contact Keithley Instruments.
Self-test procedure
The Series 2230G runs a self-test automatically when it is turned on.
When the Series 2230G is turned on, the display shows the software version number (for example,
BOIS Ver. 1.XX). After approximately one second, the system starts the self-test and the display
shows Initializing….
If the self-test finishes with no errors, the display shows the set voltage value of all three channels on
the first line and the set current value of all three channels on the second line, in the format shown
below.
0.000V 0.000V 0.000V
SV0.000A SV0.000A SV0.000A
Self-test error messages
If an error occurs during the self-test, an error message is displayed. The following table lists the error
messages you might see.
Error message Meaning
2230G-900-01 Rev. A / June 2018 2-7
Section
User's Manual
2: Quick reference Series 2230G Triple-Channel Power Supplies
Remote communications interfaces
The Series 2230G power supplies have three communication interfaces: General-purpose interface
bus (GPIB), universal serial bus (USB), and RS-232 interface.
GPIB interface
You can connect a computer to your Series 2230G GPIB port using the IEEE-488 bus.
To use the GPIB interface:
1. Make sure the connection from the Series 2230G to the computer is firmly inserted in the GPIB
port.
2. Press the Menu key.
3. Use the arrow keys to select User settings.
4. Press Enter. The screen displays Output Recall.
5. Press the down arrow keys to select Communication Port.
6. Press Enter.
7. Use the arrow keys to select GPIB.
8. Set the GPIB address of the Series 2230G to a number from 0 to 31.
9. Press Enter to confirm your selection.
USB interface
All power supply functions are programmable over the Series 2230G USB interface. The interface is
USB 2.0 and USBTMC-compliant.
The interface accepts REN_CONTROL, GO_TO_LOCAL, and LOCAL_LOCKOUT requests. It also accepts
the MsgID = TRIGGER USBTMC command and forwards TRIGGER requests to the function layer.
The USB interface of the Series 2230G:
• Understands all mandatory SCPI commands
• Is SR1, RL1, and DT1 capable.
To use the USB interface:
1. Press the Menu key.
2. Use the arrow keys to select User settings.
3. Press Enter. The screen displays Output Recall.
4. Press the down arrow keys to select Communication Port.
5. Press Enter.
6. Use the arrow keys to select USB (default).
7. Press Enter.
The GPIB address is stored in the nonvolatile memory of the Series 2230G.
8. Press Esc to exit the menu.
2-8 2230G-900-01 Rev. A / June 2018
Series 2230G
Quick reference
Triple-Channel Power Supplies User's Manual Section 2:
If you switch to the front-panel control, all remote commands sent through the USB interface will be
invalid. If you want to continue to use the remote commands, you need to send the SYSTem:REMote
command or restart the USB interface using the VISA software.
RS-232 interface
You can connect a computer to your Series 2230G RS-232 port using a cable with two COM
connectors.
Please ensure the computer and power supply have the same configuration for the following items:
• Baud rate: 4800, 9600, 19200, 38400, 57600, or 115200.You can enter the system menu to set
the baud rate.
• Data bit: 8
• Stop bit: 1
• Parity bit: (none, even, odd)
none: 8 data bits that have no parity
even: 8 data bits that have even parity
odd: 8 data bits that have odd parity
For example:
Parity = None Start bit 8 data bits Stop bit
To use the RS-232 interface:
1. Make sure the connection from the Series 2230G to the computer is firmly inserted in the port.
2. Press the Menu key.
3. Use the arrow keys to select User settings.
4. Press Enter. The screen displays Output Recall.
5. Press the down arrow keys to select Communication Port.
6. Press Enter.
7. Use the arrow keys to select RS232.
8. Select the baud rate from the following options:
4800
9600
19200
38400
57600
115200
9. Select the parity from the following the options:
None
Even
Odd
10. Press Enter to confirm your selection.
2230G-900-01 Rev. A / June 2018 2-9
Use the rear-panel terminals .................................................. 3-18
Section 3
Function and features
In this section:
Introduction .............................................................................. 3-1
Front-panel operation ............................................................... 3-1
Menu description ...................................................................... 3-4
Basic settings ........................................................................... 3-5
Restore default settings ........................................................... 3-6
Enable or disable channels ...................................................... 3-7
Set the maximum voltage ......................................................... 3-7
Set the output timers ................................................................ 3-8
Set the key lock status ............................................................. 3-8
Track ........................................................................................ 3-9
Combine ................................................................................. 3-10
User settings .......................................................................... 3-15
System information ................................................................ 3-17
Overtemperature protection ................................................... 3-18
Introduction
This section contains detailed descriptions of the functions and features of the Series 2230G power
supply.
Front-panel operation
After the power supply is powered on, the display will show the voltage and current settings of each
channel. When these settings are displayed, you can connect the DUT to the power supply and set
the parameters. Ensure that OUTPUT On/Off key is set to the Off state before connecting the DUT
and setting the parameters. After finishing the setup, set OUTPUT On/Off key to the On state and
start the measurement.
You can use the navigation wheel to increase or decrease a value or to scroll through the menus after
pressing the Menu key.
The display shows the operating status of each channel. When a channel operates in constant
voltage mode, the CV indicator is displayed. When it operates in the constant current mode, the CC
indicator is displayed.
To cancel an operation (V-set, I-set, Save, Recall, or Menu), press the Esc key.
If the front panel is locked with a password, enter the correct password after you press the function
keys (V-set, I-set, Save, Recall, or Menu); then you can change the settings.
Section
User's Manual
Select channel 1.
Select channel 2.
Select channel 3.
Set the voltage limit.
Set the current limit.
Open the menu to access various Series 2230G settings.
Enter numbers for settings values.
Return to the previous menu level.
Use left and right arrow keys to move the cursor.
Use up and down arrow keys to adjust the parameters or select the menu operation.
Select the menu item or confirm an operation.
Save the present settings as a saved setup. The Series 2230G supports up to 36 saved setups.
Return the instrument to the specified setup.
3: Function and features Series 2230G Triple-Channel Power Supplies
Front-panel keypad
You can use the front-panel keys to control the Series 2230G. Descriptions of what the keys do follow
the figure below.
Figure 5: Front-panel keypad
Key Description
Turn the output of all enabled channels on or off. When you turn on the output, the CC or CV
indicator is visible on the display.
3-2 2230G-900-01 Rev. A / June 2018
Series 2230G
Function and features
Triple-Channel Power Supplies User's Manual Section 3:
Turn the 2230G output on
You can turn the 2230G output on from the front panel or by sending remote commands.
To turn the output on using the front panel, press the OUTPUT On/Off button. The instrument is in
the output-on state when the switch is illuminated.
To turn the output on using SCPI commands, send the command:
:OUTPut:STATe ON
When you are using a remote interface to control the instrument and the output is turned off,
pressing the OUTPUT On/Off button will not turn the output on. However, if the output is turned on,
you can press the OUTPUT On/Off button to turn the output off.
Turn the 2230G output off
Turning the 2230G output off does not place the instrument in a safe state. Hazardous
voltages may be present on all output and guard terminals. To prevent electrical shock that
could cause injury or death, never make or break connections to the 2230G while the
instrument is powered on. Turn off the equipment from the front panel or disconnect the main
power cord from the rear of the 2230G before handling cables. Putting the equipment into an
output-off state does not guarantee that the outputs are powered off if a hardware or software
fault occurs.
To turn the output off using the front panel, press the OUTPUT On/Off button. The instrument is in
the output-off state when the button is not illuminated.
To turn the output off using SCPI commands, send the command:
:OUTPut[:STATe] OFF
Navigation wheel
You can use the navigation wheel to adjust voltage and current values or select the menu operation.
The navigation wheel is identified in the Front-panel overview (on page 2-1
Rotate the navigation wheel (shown circled in the following figure) clockwise to increase the value
and counterclockwise to decrease the value.
Figure 6: Navigation wheel
).
2230G-900-01 Rev. A / June 2018 3-3
Section
User's Manual
CC
Constant current mode
CV
Constant voltage mode
SV
Setting mode, programmed voltage and current settings are displayed
Series
The outputs of Channel 1 and channel 2 are wired in series
Para
The outputs of Channel 1 and channel 2 are wired in parallel
T
Tracking mode is enabled
Default Set
Restores the factory default settings.
Enable Channels
Enable/Disable CH1
Enables or disables channel 1.
Enable/Disable CH2
Enables or disables channel 2.
Enable/Disable CH3
Enables or disables channel 3.
Protection Settings
Sets the maximum voltage for each channel. This setting affects the voltage
range setting.
Sets the output timers for each channel. Once the timer expires, the output of
the specified channel is turned off.
Locks the keyboard (except the output On/Off key, left and right arrow keys,
Key Lock prevents any adjustments to channel output parameters.
Track
Track Off (default)
Disables the tracking mode.
Track CH1/CH2
Sets CH1 and CH2 to tracking mode.
Track CH2/CH3
Sets CH2 and CH3 to tracking mode.
Track ALL
Sets CH1, CH2, and CH3 to tracking mode.
3: Function and features Series 2230G Triple-Channel Power Supplies
Turn the navigation wheel to scroll through the menus after pressing the Menu key. When you have
selected the menu item or value you want, press the Enter key to save your setting.
Display indicators
Indicators on the front panel of the Series 2230G indicate the present state of the instrument. The
following table describes these indicators.
Indicator Meaning
The power supply is in remote control mode
Menu description
You can use the front-panel Menu key to access many of the Series 2230G settings. The following
table describes the settings available from the menu. Additional details about each setting are
available later in this section.
Menu items Description
Max Volt Set
Output Timers
Key Lock
Channel SELECT (CH1, CH2, CH3), V-Set, I-Set and POWER keys function)
with a password to avoid improper operation.
3-4 2230G-900-01 Rev. A / June 2018
Series 2230G
Function and features
Combine
Combine Off (default)
Disables the series or parallel operation mode.
V1+V2 Series
Sets CH1 and CH2 to series operation mode.
I1+I2 Parallel
Sets CH1 and CH2 to parallel operation mode.
I2+I3 Parallel
Sets CH2 and CH3 to parallel operation mode.
ALL Parallel
Sets CH1, CH2, and CH3 to parallel operation mode.
User Settings
Output Recall
Sets the output state after the Series 2230G is turned on.
2230G is turned on.
Key Beep
Turns the key beeper on or off.
Knob Lock
Locks the navigation wheel (knob).
GPIB: Sets the communication interface to GPIB. You can set the GPIB
address to a number from 0 to 31 by pressing the up and down arrows.
RS-232: Sets the communication interface to RS-232. You can select the
Even parity, or Odd parity).
System Info
Error Log
Lists all errors that occurred.
Main:0.01/Aux:1.06
Displays the firmware version.
0123456789AF
Displays the serial number.
Triple-Channel Power Supplies User's Manual Section 3:
Menu items Description
Save Last
Communication Port
Basic settings
The following topics describe how to set up and use the Series 2230G.
Set the voltage output or voltage limit for a specific channel
Sets the voltage, current, and maximum voltage values after the Series
baud rate (4800, 9600, 19200, 38400, 57600, or 115200) and parity (None,
USB (default): Sets the communication interface to USB.
You can set the voltage limit from 0 V to the maximum voltage specified for your Series 2230G.
To set the voltage limit:
1. Select the channel by pressing the CH1, CH2, or CH3 key.
2. Press the V-Set key.
3. Use the numeric keys, the navigation wheel, or the up, down, right, and left arrow keys to set the
voltage limit.
2230G-900-01 Rev. A / June 2018 3-5
4. Press the Enter key to confirm the setting.
Section
User's Manual
3: Function and features Series 2230G Triple-Channel Power Supplies
Set the current output or current limit for a specific channel
You can set the current limit from 0 A to the maximum current specified for your Series 2230G.
To set the current limit:
1. Select the channel by pressing the CH1, CH2, or CH3 key.
2. Press the I-Set key.
3. Use the numeric keys, the navigation wheel, or the up, down, right, and left arrow keys to set the
current limit.
4. Press Enter to confirm the setting.
Save and recall setups
You can store up to 36 different setups in Series 2230G memory. Each setup includes a voltage limit,
current limit, and maximum output voltage for each channel.
To save the setups:
1. After you set up the Series 2230G, press the Save key.
2. Use the number keys, the navigation wheel, or the arrow keys to select the setup memory (1 to
36) that you want to store the values in.
3. Press Enter to confirm your setting.
To recall the setups:
1. Press the Recall key.
2. Use the number keys, the navigation wheel, or the arrow keys to select the setup that you want to
recall.
3. Press Enter.
You can also use the following SCPI command to save or recall the setup.
*SAV
*RCL
The Series 2230G does not support the save and recall functions when the channels are in tracking
mode or when they are wired in series or parallel.
Restore default settings
To restore the factory default settings:
1. Remove all of the leads from the output terminals.
2. Press the Power key to turn on the power supply.
3. Press Menu.
4. Press Enter to select Default Set.
5. Press the down arrow key to select Yes.
6. Press Enter. The display shows Defaults Restored!. The default settings for the menu
selections are shown in the following table.
3-6 2230G-900-01 Rev. A / June 2018
Series 2230G
Function and features
Enable CH1
Enable CH2
Enable CH3
Max V CH1
Off
Max V CH2
Off
Max V CH3
Off
Timer CH1
Off
Timer CH2
Off
Timer CH3
Off
Track
Track off
Combine
Combine off
Output Recall
Off
Save Last
On
Key beep
Off
Knob Lock
Off
Triple-Channel Power Supplies User's Manual Section 3:
Menu selection Default setting
Enable Channels
Communication Port USB
Enable or disable channels
You can enable or disable each output channel using the menu settings. If a channel is disabled, it
remains off when the OUTPUT On/Off key is pressed. The default setting has all the channels
enabled.
To enable or disable a channel:
1. Press the Menu key.
2. Press the down arrow key to select Enable Channels.
3. Press Enter to confirm the setting.
4. Press the down arrow key to select Channel and press Enter.
5. Press the down arrow key to select Disable CH1 or Enable CH1 (default).
6. Press Enter.
Set the maximum voltage
You can set the maximum voltage for each channel to avoid accidental overvoltage output and
protect sensitive loads from damage.
To set the maximum voltage:
1. Press the Menu key.
2. Press the down arrow key to select Protection Settings.
3. Press Enter. The Max Volt Set indicator is displayed.
4. Press Enter. A list of maximum voltage settings for each channel is displayed.
5. Use the up and down arrow keys to select the correct channel and press Enter to confirm.
2230G-900-01 Rev. A / June 2018 3-7
Section
User's Manual
3: Function and features Series 2230G Triple-Channel Power Supplies
6. Press the down arrow key to select On.
7. Use the numeric keys, the up and down arrow keys, or the navigation wheel to adjust the voltage
value. The value must be less than the rated voltage of the power supply.
8. Press Enter.
9. Press the Esc key to exit the menu.
Set the output timers
You can set the amount of time that the output stays on for each channel. When the OUTPUT On/Off
key is pressed, the timers start and the output is turned on. When each active timer expires, its
corresponding channel output turns off. The timer range is from 0.1 seconds to 99999.9 seconds.
To set the output timers:
1. Press the Menu key.
2. Press the down arrow key to select Protection Settings and press Enter.
3. Press the down arrow key to select Output Timers and press Enter.
4. Use the up and down arrow keys to select the correct channel and press Enter to confirm.
5. Press the down arrow key to select On and press Enter.
6. Use the numeric keys, the up and down arrow keys, or the navigation wheel to adjust the timer.
7. Press Enter.
8. Press the Esc key to exit the menu.
Set the key lock status
You can set the key lock status for each channel in the Protection Settings menu. This function
prevents any adjustments from being made to the instrument. Once the lock is activated, a four-digit,
user-specified password must be entered to change any instrument settings. After the front panel is
locked, only the OUTPUT On/Off key, left and right arrow keys, Channel SELECT (CH1, CH2, CH3),
V-Set, I-Set, and POWER keys function. However, changes to settings cannot be made unless the
password is entered. Turning the power off deactivates the lock and resets the password.
To set the key lock status:
1. Press the Menu key.
2. Press the down arrow key to select Protection Settings.
3. Press Enter.
4. Press the down arrow key to select Key Lock and press Enter.
5. Use numeric keys to input a four-digit password and press Enter.
3-8 2230G-900-01 Rev. A / June 2018
Series 2230G
Function and features
Track
Triple-Channel Power Supplies User's Manual Section 3:
You can set channel 1 (CH1) and channel 2 (CH2), CH2 and Channel 3 (CH3), and all three channels
to tracking mode. When CH1/CH2 tracking is on, channel 1 and channel 2 respond relative to one
another when adjustments in voltage are made. A constant ratio is maintained between the voltage
settings on the two channels.
The voltage ratio is set between channel 1 and channel 2 when CH1/CH2 tracking is turned on. For
example, if channel 1 and channel 2 are both set to 1 V when tracking is turned on, a one-to-one ratio
is maintained and any voltage change on channel 1 results in a corresponding change on channel 2.
If channel 1 is set to 10 V and channel 2 is set to 5 V when tracking is turned on, a two to one ratio is
maintained and any voltage change on channel 1 results in a voltage change of half the size of
channel 2.
To set up CH1/CH2 tracking mode:
1. Press the CH1 key.
2. Press the V-Set key and enter the voltage value for channel 1. For example, set the voltage of
channel 1 to 3 V.
3. Press the Enter key.
4. Press the CH2 key.
5. Press the V-Set key and enter a voltage in the ratio you want for channel 2. For example, set the
voltage of channel 2 to 6 V. The ratio is 2.
6. Press the Enter key.
7. Press the Menu key, and using the down arrow key, navigate to Track, and then press the Enter
key.
8. Press the down arrow key to select Track CH1/CH2 and then press the Enter key to turn on
tracking.
9. Verify that T is displayed between the voltage readings of channel 1 and channel 2 on the
display. This indicates that the power supply is in tracking mode.
To set up CH2/CH3 tracking mode:
1. Press the CH2 key.
2. Press the V-Set key and enter the voltage value for channel 2. For example, set the voltage of
channel 2 to 3 V.
3. Press the Enter key.
4. Press the CH3 key.
5. Press the V-Set key and enter a voltage in the ratio you want for channel 3. For example, set the
voltage of channel 3 to 6 V. The ratio is 2.
6. Press the Enter key.
7. Press the Menu key, and using the down arrow key, navigate to Track, and then press the Enter
key.
8. Press the down arrow key to select Track CH2/CH3 and then press the Enter key to turn on
tracking.
9. Verify that T is displayed between the voltage readings of channel 2 and channel 3 on the
display. This indicates that the power supply is in tracking mode.
2230G-900-01 Rev. A / June 2018 3-9