2260B Series Multi-Range
Programmable DC Power Supplies
Programming Manual
077104702 June 2022
tek.com/keithley
*P077104702*
077104702
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.
LED Display Format ............................................... 110
INDEX .......................................................................... 111
1
2260B Series Programming Manual
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
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.
2
SAFETY INSTRUCTIONS
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.
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.
Safety Guidelines
3
2260B Series Programming Manual
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
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.
4
Location: Indoor
Temperature: -15°C to 70°C
Relative Humidity: <90%
SAFETY INSTRUCTIONS
Green/ Yellow:
Earth
Blue:
Neutral
Brown:
Live (Phase)
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:
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 0.75mm2 should 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.
5
2260B Series Programming Manual
2260B Series Overview ............................................... 7
Series lineup ......................................................................................... 7
Main Features ...................................................................................... 8
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.
6
GETTING STARTED
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 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.
7
2260B Series Programming Manual
360 W models
720 W models
1080 W models
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
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.
Main Features
8
GETTING STARTED
Interface
Ethernet port
Analog connector for analog voltage and current
monitoring
USB host and device port
9
2260B Series Programming Manual
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-30-108 1080W
Appearance
2260B Front Panel
2260B-30-72, 80-27, 250-9, 800-2 (720W)
10
GETTING STARTED
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
20406080100
% W
11
2260B Series Programming Manual
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.
12
GETTING STARTED
Output
terminal
(+)
Fan
Output
terminal (-)
USB B
port
LAN
AC Input
Senseterminal
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
Rear Panel
2260B-30-72, 80-27 (720W)
13
2260B Series Programming Manual
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
Senseterminal
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.
AC100 240V
VVSN.C. S
AC Input
LAN
100 240V
47 63Hz500VA MAX.
AC
V SN.C. S V
2260B-250-9, 800-2 (720W)
14
GETTING STARTED
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.
15
2260B Series Programming Manual
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
16
GETTING STARTED
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
Configuration Settings
Setting Configuration Settings
17
2260B Series Programming Manual
4. Use the Current knob to set the
parameter for the chosen F setting.
Current
5. Press the Voltage knob to save the
configuration setting. Conf will be
displayed when successful.
Exit
Press the Function key again to exit
the configuration settings. The
function key light will turn off.
Normal Function Settings
Setting
Setting Range
Output ON delay time
F-01
0.00s~99.99s
Output OFF delay time
F-02
0.00s~99.99s
V-I mode slew rate select
F-03
0 = CV high speed priority
1 = CC high speed priority
2 = CV slew rate priority
3 = CC slew rate priority
0 = Disable, 1 = GPIB-USB adapter,
2 = USB CDC, Auto Detect Speed,
3 = USB CDC, Full Speed Only
GPIB address
F-23
0~30
LAN settings
MAC Address-1
F-30
0x00~0xFF
MAC Address-2
F-31
0x00~0xFF
MAC Address-3
F-32
0x00~0xFF
MAC Address-4
F-33
0x00~0xFF
MAC Address-5
F-34
0x00~0xFF
MAC Address-6
F-35
0x00~0xFF
LAN
F-36
0 = Disable, 1 = Enable
DHCP
F-37
0 = Disable, 1 = Enable
IP Address-1
F-39
0~255
IP Address-2
F-40
0~255
IP Address-3
F-41
0~255
IP Address-4
F-42
0~255
Subnet Mask-1
F-43
0~255
Subnet Mask-2
F-44
0~255
Subnet Mask-3
F-45
0~255
Subnet Mask-4
F-46
0~255
Gateway-1
F-47
0~255
Gateway-2
F-48
0~255
Gateway-3
F-49
0~255
Gateway-4
F-50
0~255
DNS address -1
F-51
0~255
DNS address -2
F-52
0~255
DNS address-3
F-53
0~255
DNS address-4
F-54
0~255
Sockets active
F-57
0 = Disable, 1 = Enable
Web Server active
F-59
0 = Disable, 1 = Enable
Web password active
F-60
0 = Disable, 1 = Enable
Web setting password
F-61
0000~9999
20
GETTING STARTED
System Settings
Factory Set Value
F-88
0 = Disable
1 = Return to factory settings
Show Version
F-89
0, 1 = 2260B version
2, 3 = 2260B build year
4, 5 = 2260B build month/day
6, 7 = Keyboard CPLD version
8, 9 = Analog-Control CPLD version
A, B = Reserved
C, D = Kernel build year
E, F = Kernel build month/day
Power On Configuration Settings*
CV Control
F-90
0 = Panel control (local)
1 = External voltage control
2 = External resistance control (Ext-R
10kΩ = Vo, max)
3 = External resistance control (Ext-R
10kΩ = 0)
CC Control
F-91
0 = Panel control (local)
1 = External voltage control
2 = External resistance control (Ext-R
10kΩ = Io,max)
3 = External resistance control
(Ext-R10kΩ = 0)
Power-ON Output
F-92
0 = OFF at startup
1 = ON at startup
T001 ~ T010 = Run Test Sequence
TXX at start up
This chapter describes basic configuration of
IEEE488.2 based remote control.
23
2260B Series Programming Manual
USB
configuration
PC side
connector
Type A, host
2260B side
connector
Rear panel Type B, slave
Speed
1.1/2.0 (full speed/high speed)
USB Class
CDC (communications device
class)
Panel operation
1. Connect the USB cable to the rear
panel USB B port.
2. Press the Function key to enter the
Normal configuration settings.
Page 7
3. Set the following USB settings:
F-22 = 2
Set the rear panel USB port to
USB-CDC.
Configure GPIB
1. Ensure the 2260B is off before proceeding.
2. Connect the USB cable from the rear panel
USB B port on the 2260B to the USB A port on
the GPIB to USB adapter.
Interface Configuration
USB Remote Interface
Configure GPIB Interface
To use GPIB, the optional GPIB to USB adapter (2260B-GPIB-USB)
must be used. The GPIB to USB adapter must be connected before
the 2260B is turned on. Only one GPIB address can be used at a
time.
24
REMOTE CONTROL
3. Connect a GPIB cable from a GPIB controller to
the GPIB port on the adapter.
From Type B plug
on Power supply
Type A plug
From
computer
GPIB to USB adapter
4. Turn the 2260B on.
5. Press the Function key to enter the
Normal configuration settings.
Page 7
Set the following GPIB settings:
F-22 = 1
Set the rear panel USB port to
GPIB-USB
F-23 = 0~30
Set the GPIB address (0~30)
GPIB constraints
Maximum 15 devices altogether, 20m cable
length, 2m between each device
Unique address assigned to each device
At least 2/3 of the devices turned On
No loop or parallel connection
25
2260B Series Programming Manual
Ethernet
configuration
Parameters
MAC Address (display
only)
LAN
DHCP
IP Address
Subnet Mask
Gateway
DNS Address
Sockets Active
Web Server Active
Web Password Active
Web set password
0000~9999 (default 0000)
Configuration
This configuration example will configure the
2260B as a web server and use DHCP to
automatically assign an IP address to the 2260B.
Steps
1. Connect an Ethernet cable from the
network to the rear panel Ethernet
port.
LAN
Configure Ethernet Connection
The Ethernet interface can be configured for a number of different
applications. Ethernet can be configured for basic remote control or
monitoring using a web server or it can be configured as a socket
server.
The 2260B series supports DHCP connections so the instrument can
be automatically connected to an existing network or alternatively,
network settings can be manually configured.
Web Server Configuration
26
REMOTE CONTROL
2. Press the Function key to enter the
Normal configuration settings.
Page 7
Set the following LAN settings:
F-36 = 1
Enable LAN
F-37 = 1
Turn DHCP to enable
F-59 = 1
Turn the web server on
Note
It may be necessary to cycle the power or refresh
the web browser to connect to a network.
Configuration
This configuration example will configure the
2260B for web sockets control.
The following configuration settings will manually
assign the 2260B an IP address and enable web
sockets. By default, the socket port number is 2268
and cannot be configured.
Steps
1. Connect an Ethernet cable from the
network to the rear panel Ethernet
port.
2. Press the Function key to enter the
Normal configuration settings.
Page 7
3. Set the following LAN settings:
F-36 = 1
Enable LAN
F-37 = 0
Disable DHCP
F-39 = 172
IP Address part 1 of 4
F-40 = 16
IP Address part 2 of 4
F-41 = 5
IP Address part 3 of 4
F-42 = 133
IP Address part 4 of 4
F-43 = 255
Subnet Mask part 1 of 4
F-44 = 255
Subnet Mask part 2 of 4
LAN
Sockets Server Configuration
27
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