GW Instek PSU Series - Page 127

ANALOG CONTROL
127
Connection
PSUEXT-R
Analog
connector
23
22
Output
Terminal
2 core shielded
wire or twisted
pair
 Pin22 → EXT-R
 Pin23 → EXT-R
 Wire shield → negative (-) output terminal
Steps
1. Connect the external resistance according to the
connection diagrams above.
2. Set the F-90 (CV Control)
configuration settings to 2 for
Ext-R rising or 3 for Ext-R falling.
Page 114
 Be sure to cycle the power after the power on
configuration has been set.
3. Press the Function key and confirm
the new configuration settings
(F-90=2 or 3).
Function
4. Press the Output key. The
voltage can now be
controlled with the External
resistance.
Output
Note
Ensure the resistor(s) and cables used exceed the
isolation voltage of the power supply. For example:
insulation tubes with a withstand voltage higher than
the power supply can be used.
When choosing an external resistor ensure the resistor
can withstand a high degree of heat.