Series 2268 850W DC Power Supplies0 pages

Series 2268

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850W DC Power Supplies

•t Six 850W models with
maximum voltage outputs from
20V to 150V, maximum current
outputs from 42A to 5.6A

•t Isolated analog inputs minimize
control line noise
•t Built-in LAN, USB, GPIB, RS-232,
RS-485 interfaces and analog
inputs are all standard
•t Constant voltage, constant
current, and constant power
setting control
•t Auto sequence control supports
internal execution of commands
to minimize bus communication
time
•t Control up to 30 supplies
through a single controller
interface
•t Foldback mode with
programmable delay shuts
down the output on transitions
between CV and CC operation
to protect voltage- or currentsensitive devices
•t Numerous safety features
protect the load and the supply,
including: over-voltage and
under-voltage protection,
over-current protection, overtemperature protection, loop
protection for multiple-supply
configurations, and a hardware
output interlock
APPLICATIONS

The six models in the 850W DC Power Supplies in the Series 2268 provide voltage and current output
levels well suited for automated test applications. They offer maximum voltage outputs of 20V, 40V,
60V, 80V, 100V, and 150V with corresponding maximum current outputs of 42A, 21A, 14A, 10.5A,
8.5A, and 5.6A. Series 2268 supplies allow outputting any current, including the maximum current,
at any voltage. They provide both analog and digital control options and a number of digital interface
options and can operate in constant voltage (CV), constant current (CC), or constant power modes
to address a broad array of applications. These high-efficiency, soft-starting power supplies provide
reliable performance and long life.
850W in the Most Compact Package
The Series 2268 supplies offer the highest power density in the smallest package. The Series 2268
supplies are packaged in a low profile 1U high, half-rack width enclosure. These supplies take up
minimum space in a test rack. When multiple supplies are needed, these supplies can easily mount
side-by-side in a test rack to provide two outputs in a 1U height space. Ventilation for the Series 2268
supplies is from the front of the instrument to the back so additional rack space for airflow above,
below, or to the side of the supplies is not required. Thus, only 1U of total rack height is all that is
needed. Furthermore the Series 2268 power supplies operate at temperatures up to 50°C so that they
can perform reliably even in test racks that have elevated temperatures.

PC

Sensors

Series 2268
DC Power Supply

Isolated
Analog
Input

Output +

PLC

Output –
Interlock

Aux Out
15V

DUT or
Load

Aux Out
5V
Control Relay

Safety Limit
Switches

Fixture
Control

•t Production testing
•t Environmental testing
•t Accelerated life testing
•t Process control systems

1.888.KEITHLEY (U.S. only)
www.keithley.com

850W DC power supplies

•t Two auxiliary outputs support
driving or signaling external
devices, often eliminating
the need for additional
instrumentation

Use a Series 2268 DC supply as part of a control system. Analog control signals can program
the supply’s output. In addition to driving the load, the supply’s two auxiliary outputs can
drive external devices or circuits. The auxiliary outputs can eliminate the need for extra power
sources in a test system. Interlock connections can turn off the supply’s output if an unsafe
external condition is detected.

A Greater Measure of Confidence

DC POWER SUPPLIES

850W DC power supplies

•t Compact 1U, half-rack enclosure
provides the highest power in
the smallest package