Keithley 2260B Series User manual

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2260B Series
www.keithley.com
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360W and 720W Multi-Range Programmable DC Power
Supplies
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Quick Start Guide
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/ March 2014
071305501
ATektronix Company
A Greater Measure of Confidence

Series 2260B
360W and 720W Multi-Range Programmable DC Power
Supplies
QUICK START GUIDE
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...........................6
Appearance.......................................... 10
OPERATION.................................................................... 12
Set Up.................................................. 12
Basic Operation ................................... 13
APPENDIX ...................................................................... 22
2260B Dimensions............................... 22
Declaration of Conformity.................... 24

2260B Quick Start Guide
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 61010-1:2001 specifies the
measurement categories and their requirements as follows. This
instrument 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.
•Measurement category I is for measurements performed on
circuits not directly connected to Mains.
Power Supply
WARNING
•AC Input voltage range: 85VAC~265VAC
•Frequency: 47Hz~63Hz
•To avoid electrical shock connect the protective
grounding conductor of the AC power cord to
an earth ground.

2260B Quick Start Guide
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 61010-1:2001 specifies 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 Quick Start Guide
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
Series lineup
The 2260B series consists of 4 models, divided into 2 different
model types covering 2 power capacities: 360W models and 720W
models.
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-30-72 720W models
0~30V 0~72A 720W
2260B-80-27 720W models
0~80V 0~27A 720W

GETTING STARTED
7
Apart from the differences in output, each unit differs in size. The
720 W models are larger than the 360 W models to accommodate
the increase in power.
360W models
720W 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 serial and parallel connections
•Power on configuration settings.
•Web server monitoring and control

2260B Quick Start Guide
8
Interface •Ethernet port
•Analog connector for analog voltage and current
monitoring
•USB host and device port
Accessories
Standard
Accessories
Part number Description
196353000 Test Leads x1
174627900 USB Cable
020312300 Basic Accessories 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)
063453400 CD-R 2260B Manuals & Drivers
071305501 Quick Start Guide
PWRKI A*_ Power cord
071305700 China RoHS Declaration
001163200 Calibration of Traceable Certificate
001163300 Packing Check List
Optional
Accessories
Part number Description
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

GETTING STARTED
9
keithley_2260B.inf USB driver

2260B Quick Start Guide
10
Appearance
2260B Front Panel
2260B-80-27, 2260B-30-72 (720W)
2260B-80-13, 2260B-30-36 (360W)

GETTING STARTED
11
Rear Panel
2260B-80-27, 2260B-30-72 (720W)
2260B-80-13, 2260B-30-36 (360W)

2260B Quick Start Guide
12
OPERATION
Set Up
Power Up
Steps 1. Connect the power cord to
the rear panel socket.
2. Press the POWER key. If used for the first time,
the default settings will appear on the display,
otherwise The 2260B recovers the state right
before the power was last turned OFF.
CAUTION The power supply takes around 8 seconds to fully
turn on and shutdown.
Do not turn the power on and off quickly. Please
wait for the display to fully turn off.

OPERATION
13
Basic Operation
Setting OVP/OCP Levels
The OVP level has a selectable range of 10% to
110% of the rated output voltage. The OCP
level has a selectable range 10%~ 110% of the
rated output current, alternatively the OCP
level can also be turned off. The OVP and OCP
level is set to 110% by default.
When one of the protection measures are on,
ALM is shown on the panel display. By default,
the power switch will turn off when any of the
protection levels are tripped.
Before setting the OVP or OCP level:
•Ensure the load is not connected.
•Ensure the output is set to off.
Steps 1. Press the OVP/OCP key. The
OVP/OCP key lights up.

2260B Quick Start Guide
14
2. The OVP setting will be displayed on the top
and the OCP setting (or OFF) will be displayed
on the bottom.
OVP Level 3. Use the Voltage knob to set the
OVP level.
Range 10%~110% of rated
output voltage.
OCP Level 4. Use the Current knob to set the
OCP level.
Range 10%~110% of rated
output current, OFF.
5. Press OVP/OCP again to exit. The
OVP/OCP indicator will turn off.
Power switch trip Set F-95 (Power switch trip) to 1 (to
disable the power switch trip) or to
0 (to enable the power switch trip)
and save.
F-95 1 (Disable) or 0 (Enable)
Clear OVP/OCP
protection
The OVP or OCP protection can be
cleared after it has been tripped by
holding the OVP/OCP button for 2
seconds.
(Only applicable when the power
switch trip setting is disabled
[F-95 = 1])
(hold)

OPERATION
15
Set to CV (Constant voltage) Mode
When setting the power supply to CV mode, a current limit must
also be set to determine the crossover point. When the current
exceeds the crossover point, the mode switches to CC mode. CC
and CV mode have two selectable slew rates: High Speed Priority
and Slew Rate Priority. High Speed Priority will use the fastest slew
rate for the instrument while Slew Rate Priority will use a user-
configured slew rate.
Background Before setting the power supply to CV mode,
ensure:
•The output is off.
•The load is connected.
Steps 1. Press the Function key. The
Function key will light up.
2. The display should 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 to F-03 (V-I Mode
Slew Rate Select).
4. Use the Current knob to set the F-
03 setting.
Set F-03 to 0 (CV High Speed
Priority) or 2 (CV Slew Rate
Priority).
F-03 0 = CV High Speed Priority
2 = CV Slew Rate Priority

2260B Quick Start Guide
16
5. Press the Voltage knob to save the
configuration setting. ConF will be
displayed when successful.
6. If CV Slew Rate Priority was chosen as the
operating mode in steps 3~5, set F-04 (Rising
Voltage Slew Rate) and F-05 (Falling Voltage
Slew Rate) and save.
F-04 / F-05
0.1V/s~60V/s (2260B-30-XX)
0.1V/s~160V/s (2260B-80-XX)
7. Press the Function key again to exit
the configuration settings. The
function key light will turn off.
8. Use the Current knob to set the
current limit (crossover point).
Push in the knob to highlight a
digit. Turn the knob to the desired
digit to adjust. Rotate the knob to
the desired current.
9. Use the Voltage knob to set the
voltage.
Push in the knob to highlight a
digit. Turn the knob to the desired
digit to adjust. Rotate the knob to
the desired voltage.
Note Notice the Set key becomes illuminated when
setting the current or voltage. If the Voltage or
Current knobs are unresponsive, press the Set key
first.

OPERATION
17
10. Press the Output key. The Output
key becomes illuminated.
Note Only the voltage level can be altered when the
output is on. The current level can only be changed
by pressing the Set key.