Tektronix Keithley 2260B Series Owner's manual

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2260B Series
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Multi-Range Programmable DC Power Supplies
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Programming Manual
A Tektronix Company
A Greater Measure of Confidence
077-1047-01/ August2015

Series 2260B
Multi-Range Programmable DC Power Supplies
PROGRAMMING MANUAL
ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information, which is protected by
copyright. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent.
The information in this manual was correct at the time of printing.
However, we continue to improve our products and reserve the rights
to change specification, equipment, and maintenance procedures at
any time without notice.

Table of Contents
1
Table of Contents
SAFETY INSTRUCTIONS .................................................. 2
GETTING STARTED.......................................................... 6
2260B Series Overview ...............................................7
Appearance .............................................................. 10
Configuration Settings .............................................17
REMOTE CONTROL ....................................................... 23
Interface Configuration ............................................24
Socket Server Examples............................................37
Command Syntax .....................................................41
Command List..........................................................45
Status Register Overview ......................................... 87
Error List..................................................................97
APPENDIX ....................................................................106
2260B Default Settings ........................................... 107
Error Messages & Messages .................................. 109
LED Display Format ............................................... 110
INDEX ..........................................................................111

2260B Series Programming Manual
2
SAFETY INSTRUCTIONS
This chapter contains important safety
instructions that you must follow during
operation and storage. Read the following before
any operation to insure your safety and to keep
the instrument in the best possible condition.
Safety Symbols
These safety symbols may appear in this manual or on the
instrument.
WARNING
Warning: Identifies conditions or practices that
could result in injury or loss of life.
CAUTION
Caution: Identifies conditions or practices that
could result in damage to the instrument or to
other properties.
DANGER High Voltage
Attention Refer to the Manual
Protective Conductor Terminal
Earth (ground) Terminal

SAFETY INSTRUCTIONS
3
Do not dispose electronic equipment as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased.
Safety Guidelines
General Guideline
CAUTION
Do not place any heavy object on the
instrument.
Avoid severe impact or rough handling that
leads to damaging the instrument.
Do not discharge static electricity to the
instrument.
Use only mating connectors, not bare wires, for
the terminals.
Do not block the cooling fan opening.
Do not disassemble the instrument unless you
are qualified.
(Measurement categories) EN 61010-1:2010 and EN 61010-2-030
specify the measurement categories and their requirements as
follows. The 2260B falls under category II.
Measurement category IV is for measurement performed at the
source of low-voltage installation.
Measurement category III is for measurement performed in the
building installation.
Measurement category II is for measurement performed on the
circuits directly connected to the low voltage installation.
0 is for measurements performed on circuits not directly
connected to Mains.
Power Supply
WARNING
To avoid electrical shock connect the protective
grounding conductor of the AC power cord to
an earth ground.

2260B Series Programming Manual
4
Cleaning the
Instrument
Disconnect the power cord before cleaning.
Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid.
Do not use chemicals containing harsh material
such as benzene, toluene, xylene, and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Relative Humidity: 20%~ 85%
Altitude: < 2000m
Temperature: 0°C to 50°C
(Pollution Degree) EN 61010-1:2010 and EN 61010-2-030 specify the
pollution degrees and their requirements as follows. The Instrument
falls under degree 2.
Pollution refers to “addition of foreign matter, solid, liquid, or
gaseous (ionized gases), that may produce a reduction of dielectric
strength or surface resistivity”.
Pollution degree 1: No pollution or only dry, non-conductive
pollution occurs. The pollution has no influence.
Pollution degree 2: Normally only non-conductive pollution
occurs. Occasionally, however, a temporary conductivity caused
by condensation must be expected.
Pollution degree 3: Conductive pollution occurs, or dry, non-
conductive pollution occurs which becomes conductive due to
condensation which is expected. In such conditions, equipment
is normally protected against exposure to direct sunlight,
precipitation, and full wind pressure, but neither temperature
nor humidity is controlled.
Storage
environment
Location: Indoor
Temperature: -25°C to 70°C
Relative Humidity: <90%
Disposal
Do not dispose this instrument as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased. Please make sure
discarded electrical waste is properly recycled to
reduce environmental impact.

SAFETY INSTRUCTIONS
5
Power cord for the United Kingdom
When using the instrument in the United Kingdom, make sure the
power cord meets the following safety instructions.
NOTE: This lead/appliance must only be wired by competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED
IMPORTANT: The wires in this lead are coloured in accordance with the
following code:
Green/ Yellow:
Earth
Blue:
Neutral
Brown:
Live (Phase)
As the colours of the wires in main leads may not correspond with
the coloured marking identified in your plug/appliance, proceed
as follows:
The wire which is coloured Green & Yellow must be connected to
the Earth terminal marked with either the letter E, the earth symbol
or coloured Green/Green & Yellow.
The wire which is coloured Blue must be connected to the terminal
which is marked with the letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the
terminal marked with the letter L or P or coloured Brown or Red.
If in doubt, consult the instructions provided with the equipment
or contact the supplier.
This cable/appliance should be protected by a suitably rated and
approved HBC mains fuse: refer to the rating information on the
equipment and/or user instructions for details. As a guide, a cable
of 0.75mm2should be protected by a 3A or 5A fuse. Larger
conductors would normally require 13A types, depending on the
connection method used.
Any exposed wiring from a cable, plug or connection that is
engaged in a live socket is extremely hazardous. If a cable or plug is
deemed hazardous, turn off the mains power and remove the cable,
any fuses and fuse assemblies. All hazardous wiring must be
immediately destroyed and replaced in accordance to the above
standard.

2260B Series Programming Manual
6
GETTING STARTED
This chapter describes the power supply in a
nutshell, including its main features and front /
rear panel introduction. After going through the
overview, please read the theory of operation to
become familiar with the operating modes,
protection modes and other safety considerations.
2260B Series Overview ...............................................7
Series lineup ......................................................................................... 7
Main Features ...................................................................................... 8
Appearance ..............................................................10
2260B Front Panel ............................................................................10
Rear Panel...........................................................................................13
Configuration Settings .............................................17
Setting Configuration Settings ........................................................17
Configuration Table..........................................................................18

GETTING STARTED
7
2260B Series Overview
Series lineup
The 2260B series consists of 12 models, divided into 3 different
model types covering 3 power capacities: 360W models, 720W
models and 1080W models.
Note
Throughout the user manual, 2260B-30, 2260B-80,
2260B-250 or 2260B-800 will refer to any of the
2260B models with a maximum voltage rating of
30V, 80V, 250V or 800V, respectively.
Model name
Type
Voltage Rating
Current Rating
Power
2260B-30-36
360W models
0~30V
0~36A
360W
2260B-80-13
360W models
0~80V
0~13.5A
360W
2260B-250-4
360W models
0~250V
0~4.5A
360W
2260B-800-1
360W models
0~800V
0~1.44A
360W
2260B-30-72
720W models
0~30V
0~72A
720W
2260B-80-27
720W models
0~80V
0~27A
720W
2260B-250-9
720W models
0~250V
0~9A
720W
2260B-800-2
720W models
0~800V
0~2.88A
720W
2260B-30-108
1080W models
0~30V
0~108A
1080W
2260B-80-40
1080W models
0~80V
0~40.5A
1080W
2260B-250-13
1080W models
0~250V
0~13.5A
1080W
2260B-800-4
1080W models
0~800V
0~4.32A
1080W

2260B Series Programming Manual
8
Apart from the differences in output, each unit differs in size. The
720W and 1080W models are larger than the 360W models to
accommodate the increase in power.
360 W models
720 W models
1080 W models
Main Features
Performance
High performance/power
Power efficient switching type power supply
Low impact on load devices
Fast transient recovery time of 1ms
Fast output response time
Features
OVP, OCP and OTP protection
Adjustable voltage and current slew rates
User adjustable bleeder control to quickly
dissipate the power after shutdown to safe
levels.
Extensive remote monitoring and control
options
Support for series* and parallel connections.
*(30, 80 volt models only)
Power on configuration settings.
Web server monitoring and control

GETTING STARTED
9
Interface
Ethernet port
Analog connector for analog voltage and current
monitoring
USB host and device port

2260B Series Programming Manual
10
Appearance
2260B Front Panel
2260B-30-72, 80-27, 250-9, 800-2 (720W)
Current
knob
Output
key
Power
switch
Voltage
knob
USB A
port
Display
Cover
panel
Function
keys
2260B-30-108, 80-40, 250-13, 800-4 (1080W)
2260B-30-36, 80-13,
250-4, 800-1 (360W)
2260B-30-1081080W

GETTING STARTED
11
Function Keys
The Function keys along with the Output key will
light up when a key is active.
The Function key is used to
configure the power supply.
Set the overcurrent or overvoltage
protection levels.
Sets the current and voltage limits.
Used to run customized Test
sequence for testing.
Locks or unlocks the panel keys to
prevent accidentally changing
panel settings.
Toggles the display from viewing
V/A V/W or A/W*.
*Press the Voltage knob for V/W,
press the Current knob for A/W.
Display
Indicators
Voltage Slew Rate
Constant Voltage Mode
Remote Control Mode
Alarm on
Delay Output
Constant Current Mode
Current Slew Rate
Power bar
Indicates the current power output
as a percentage.
VSR
C V
RMT
ALM
DLY
C C
ISR
20
40
60
80
100
% W

2260B Series Programming Manual
12
Voltage Knob
Sets the voltage.
Current Knob
Sets the current.
Output
Press to turn on the output. The
Output key will light up when the
output is active.
USB
The USB A port is used to update
the firmware. The firmware can
only be updated at a service
center.
Power Switch
Used to turn the power on/off.

GETTING STARTED
13
Rear Panel
2260B-30-72, 80-27 (720W)
Output
terminal
(+)
Fan
Output
terminal (-)
USB B
port
LAN
AC Input
Sense-
terminal
Analog control
connector
LAN
100 240V
1000VA MAX.
AC
47 63Hz
SER.NO. LABEL
Sense+
terminal
Chassis
ground
2260B-30-108, 80-40 (1080W)
2260B-30-36, 80-13
(360W)
100 240VAC
1500VA MAX.
47 63Hz
LAN
LN
SER.NO. LABEL
AC Input
LAN
100 240V
47 63Hz 500VA MAX.
AC

2260B Series Programming Manual
14
2260B-250-9, 800-2 (720W)
LAN
100 240V
1000VA MAX.
AC
47 63Hz
SER.NO. LABEL
V SN.C. S V
Output
terminals +V
Fan
Chassis
ground
USB B
port
LAN
AC Input
Sense-
terminal
Analog control
connector
Sense+
terminal
Output
terminals -V
2260B-250-13, 800-4 (1080W)
2260B-250-4, 800-1
(360W)
LAN
LN
SER.NO. LABEL
47 63Hz 1500VA MAX.
AC 100 240V
V VSN.C. S
AC Input
LAN
100 240V
47 63Hz 500VA MAX.
AC
V S N.C. S V

GETTING STARTED
15
Analog Control
Connector
Standard 26 pin MIL connector
(OMRON XG4 IDC plug).
The analog control connector is
used to monitor current and voltage
output, machine status (OVP, OCP,
OTP etc.), and for analog control of
the current and voltage output.
Use an OMRON XG5 IDC socket as
the mating socket.
Output Terminals
(30, 80 volt
models)
Positive (+) and negative (-) output
terminals.
Chassis ground
Sense (-S) and Sense (+S) terminals.
Output Terminals
(250, 800 volt
models)
The 250 and 800 volt models use a 9 pin connector
and a plug for the output and sense terminal
connections. The plug is a MC420-38109Z plug by
DECA SwitchLab Inc. This plug is also available
separately.
V SN.C. S V
Positive (V+) and negative (V-)
output terminals (3 of each).
V SN.C. S V
Chassis ground
V SN.C. S V
Sense (-S) and Sense (+S)
terminals.

2260B Series Programming Manual
16
USB B port
The USB B port is used for remote
control.
Fans
Temperature controlled fans
Ethernet Port
The Ethernet port is used for remote
control and digital monitoring from
a PC.
Line Voltage
Input
360W models:
2260B-30-36/80-13/250-4/ 800-1
720W models:
2260B-30-72/80-27/250-9/ 800-2
Voltage Input: 100~240 VAC
Line frequency: 50Hz/60 Hz
(Automatically switchable)
AC Input voltage range:
85VAC~265VAC
Frequency: 47Hz~63Hz
Line Voltage
Input
1080W models:
2260B-30-108/80-40/250-13/800-4
Voltage Input: 100~240 VAC
Line frequency: 50Hz/60 Hz
(Automatically switchable)
LAN
LN

GETTING STARTED
17
Configuration Settings
Setting Configuration Settings
Background
The normal configuration settings (F-01~F-61,
F-88, F-89) are used to configure or view system
settings. Use the following operation steps
when configuring the interface settings used in
the Remote Control chapter on page 23.
Ensure the load is not connected.
Ensure the output is off.
Note
Configuration settings F-90~F-95 cannot be edited
in the Normal Function Settings. See the user
manual for details.
The F-89 settings can only be viewed, not set.
Steps
1. Press the Function key. The
function key will light up.
2. The display will show F-01
on the top and the
configuration setting for
F-01 on the bottom.
3. Rotate the Voltage knob to change
the F setting.
Voltage
Range
F-00~ F-61, F-88, F-89