Tektronix Series 2260B Multi-Range Programmable DC Power Supplies User Manual
2260B Series Multi-Range
Programmable DC Power Supplies
User’s Manual
077104602 June 2022
tek.com/keithley
*P077104602*
077104602
Background
The 1080W (2260B-30-108/80-40/ 250-13/800-
4) models use a universal power input that can
be used with 100 and 200 VAC systems. To
connect or replace the power cord, use the
procedure below:
Warning
The following procedure should only be attempted
by competent persons.
Ensure the AC power cord is not connected to
power.
Removal
1. Turn off the power switch.
1
2. Unscrew the power cord
strain relief.
3. Remove the 2 screws
holding the power cord
cover and remove.
3
2
ADDENDUM
Please replace the “Set up” section on page 40 through page 41 of
the 2260B user manual with the following replacement:
Set Up
Line Voltage Connection – 1080W Models
4. Slide the cover off the AC
terminals.
5. Remove the AC power
cord wires.
5
4
Installation
1. Thread the power cord through the strain relief
and through the power cord cover.
1
2. Connect the AC power cord
wires to the AC input
terminals.
White/Blue /Black(India)
Neutral (N)
Green/Green-yellow
GND ( )
Black/Brown/Red(India)
Line (L)
LN
Line
Neutral
Ground
3. Set the cover over the AC
terminals.
3
4. Screw the power cord cover
onto the rear panel using
the supplied screws.
5. Screw the strain relief onto
the power cord cover.
4
5
Series 2260B
Multi-Range Programmable DC Power Supplies
USER 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 products and reserves the rights to
change specification, equipment, and maintenance procedures at any
time without notice.
Table of Contents
Table of Contents
SAFETY INSTRUCTIONS .................................................. 5
GETTING STARTED .......................................................... 9
2260B Series Overview ........................................... 11
Appearance ............................................................ 18
Theory of Operation ............................................... 25
OPERATION .................................................................. 38
Set Up ................................................................... 40
Basic Operation ..................................................... 60
Parallel / Series Operation ..................................... 75
Test Sequence ........................................................ 90
CONFIGURATION ......................................................... 102
Configuration ....................................................... 103
ANALOG CONTROL ...................................................... 122
Analog Remote Control Overview ......................... 123
Remote Monitoring .............................................. 139
COMMUNICATION INTERFACE .................................... 144
Interface Configuration ........................................ 145
FIRMWARE UPGRADE PROCEDURE .............................. 158
Firmware Update ................................................. 159
Check the Firmware Version ................................. 162
Kernel Update ...................................................... 164
Check the Kernel Version ..................................... 167
MAINTENANCE ............................................................ 169
3
2260B Series User Manual
FAQ .............................................................................. 171
APPENDIX .................................................................... 173
2260B Default Settings ........................................ 173
Error Messages & Messages ................................ 176
LED Display Format ............................................. 176
2260B Specifications ............................................ 177
2260B Dimensions ............................................... 194
INDEX .......................................................................... 201
4
SAFETY INSTRUCTIONS
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.
5
2260B Series User Manual
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
6
SAFETY INSTRUCTIONS
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 61010-2-030specify 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.
Location: Indoor
Temperature: -15°C to 70°C
Relative Humidity: <90%
7
2260B Series User Manual
Green/ Yellow:
Earth
Blue:
Neutral
Brown:
Live (Phase)
Power cord for the United Kingdom
When using the power supply 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.
8
GETTING STARTED
2260B Series Overview ........................................... 11
Series lineup ...............................................................................................11
Main Features ............................................................................................12
Accessories .................................................................................................13
2260B-30/80 Accessories ..............................................................13
2260B-250/800 Accessories ..........................................................15
Package Contents ......................................................................................17
Appearance ............................................................ 18
2260B Front Panel ....................................................................................18
Rear Panel ..................................................................................................21
Theory of Operation ............................................... 25
Operating Area Description ...................................................................25
CC and CV Mode .....................................................................................28
Slew Rate ....................................................................................................30
Bleeder Control .........................................................................................30
Internal Resistance....................................................................................31
Alarms .........................................................................................................32
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.
9
2260B Series User Manual
Considerations .......................................................................................... 33
Grounding ................................................................................................. 36
10
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.
11
2260B Series User 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
12
Interface
Ethernet port
Analog connector for analog voltage and current
monitoring
USB host and device port
Accessories
Standard
Accessories
Part number
Description
196353000
174627900
020312300
060316400
Please check the contents before using the 2260B.
2260B-30/80 Accessories
Test Leads x1(10AWG, Max. 45A,
Max.600V)
USB Cable
Basic Accessories Kit:(360W, 720W)
M4 terminal screws and washers x2, M8
terminal bolts, nuts and washers x2, Air
filter x1, Analog control protection
dummy x1, Analog control lock lever x1,
Output terminal cover (top & bottom)
GETTING STARTED
Basic Accessories Kit:(1080W)
M4 terminal screws and washers x2, M8
terminal bolts, nuts and washers x2, Air
filter x1, Analog control protection
dummy x1, Analog control lock lever x1,
Output terminal cover (top & bottom),
Strain relief.
Quick Start Guide
Power cord
China RoHS Declaration
Calibration of Traceable Certificate
071305503
PWRKI A*_
071305700
001163200
13
2260B Series User Manual
001163300
Packing Check List
Optional
Accessories
Part number
Description
2260-001
Accessory Kit:
Pin contact x10, Socket x1, Protection
cover x1
2260-002
Simple IDC Tool
2260-003
Contact Removal Tool
2260-004
Basic Accessory Kit:
M4 terminal screws and washers x2, M8
terminal bolts, nuts and washers x2, Air
filter x1, Analog control protection
dummy x1, Analog control lock lever x1,
Output terminal cover (top & bottom),
Strain relief
2260-005
Cable for 2 units in Series connection.
2260-006
Cable for 2 units in Parallel connection.
2260-007
Cable for 3 units in Parallel connection.
2260-008
Test Lead Set with Lugs
2260B-EXTERM
Extended terminal
2260B-RMK-JIS
Rack mount adapter (JIS)
2260B-RMK-EIA
Rack mount adapter (EIA)
2260B-GPIB-USB
GPIB to USB adapter
Download
Name
Description
keithley_2260B.inf
USB driver
14
2260B-250/800 Accessories
Standard
Accessories
Part number
Description
196353900
174627900
020315700
060316500
PWRKI A*_
071305700
001163200
001163300
GETTING STARTED
Test Leads x1(20AWG, Max. 9A, Max.
3kV)
USB Cable
Basic Accessories Kit: (360W, 720W)
Air filter x1, Analog control protection
dummy x1, Analog control lock lever x1,
Output terminal cover (top & bottom),
High voltage output terminal
Basic Accessories Kit: (1080W)
Air filter x1, Analog control protection
dummy x1, Analog control lock lever x1,
Output terminal cover (top & bottom),
High voltage output terminal, Strain relief
071305503
Quick Start Guide
Power cord
China RoHS Declaration
Calibration of Traceable Certificate
Packing Check List
15
2260B Series User Manual
Optional
Accessories
Part number
Description
2260-001
Accessory Kit:
Pin contact x10, Socket x1, Protection
cover x1
2260-002
Simple IDC Tool
2260-003
Contact Removal Tool
2260-005
Cable for 2 units in Series connection.
2260-006
Parallel operation cable for 2 units.
2260-007
Parallel operation cable for 3 units.
2260-009
Test Leads (for High Voltage)
2260-010
Basic Accessories Kit:
Air filter x1, Analog control protection
dummy x1, Analog control lock lever x1,
Output terminal cover (top & bottom),
High voltage output terminal, Strain relief
2260B-EXTERMHV
Extended terminal (For 250V/800V HV
models)
2260B-RMK-JIS
Rack mount adapter (JIS)
2260B-RMK-EIA
Rack mount adapter (EIA)
2260B-GPIB-USB
GPIB to USB adapter
Download
Name
Description
keithley_2260B.inf
USB driver
16
Package Contents
Opening the box
Contents
(single unit)
Power cord x1
China RoHS
Declaration
Calibration of
Traceable Certificate
Packing Check List
Check the contents before using the 2260B.
Main unit
Test leads x1
USB cable
Basic Accessories Kit
Quick Start Guide
GETTING STARTED
17
2260B Series User 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)
18
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
VSR
Voltage Slew Rate
C V
Constant Voltage Mode
RMT
Remote Control Mode
ALM
Alarm on
DLY
Delay Output
C C
Constant Current Mode
ISR
Current Slew Rate
20 40 60
80 100 % W
Power bar
Indicates the current power output
as a percentage.
19
2260B Series User 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.
20
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)
21
2260B Series User 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
V VSN.C. S
AC Input
LAN
100 240V
47 63Hz500VA MAX.
AC
V SN.C. S V
2260B-250-9, 800-2 (720W)
22
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.
23
2260B Series User Manual
USB B port
The USB B port is used for remote
control.
Fans
Temperature controlled fans
Ethernet Port
LAN
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
LN
1080W models:
2260B-30-108/80-40/250-13/800-4
Voltage Input: 100~240 VAC
Line frequency: 50Hz/60 Hz
(Automatically switchable)
24
GETTING STARTED
Background
The 2260B power supplies are regulated DC
power supplies with a high voltage and current
output. These operate in CC (Constant current)
or CV (Constant voltage) mode within a wide
operating range limited only by the output
power.
The operating area of each power supply is
determined by the rated output power as well
as the voltage and current rating. For example
the operating area and rated power output for
the 2260B- 30-36 is shown below.
Voltage
Current
30
360W rated power
10
12 36
Operating Area
When the power supply is configured so that
the total output (current x voltage output) is
less than the rated power output, the power
supply functions as a typical constant current,
constant voltage power supply.
If however, the power supply is configured
such that the total output (current x voltage
Theory of Operation
The theory of operation chapter describes the basic principles of
operation, protection modes and important considerations that
must be taken into account before use.
Operating Area Description
25
2260B Series User Manual
output) exceeds the rated power output, the
effective output is actually limited to the power
limit of the unit. In this case the output current
and voltage then depend purely on the load
value.
Below is a comparison of the operating areas of
each power supply.
2260B 800V Series Operating Area
0
100
800
Current (A)
Voltage (V)
200
300
400
700
0
1
2
3
4
900
5
1080W
702W
360W
500
600
0.45 0.9 1.35
800
250
2.88 4.321.44
2260B 250V Series Operating Area
Current (A)
Voltage (V)
0
3
6
9
12 15
1080W
720W
360W
1.44 2.88 4.32
250
80
9 13.54.5
250
200
150
100
50
0
26
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