GW Instek PSU Series User Manual

ANALOG CONTROL
133
External control of Shutdown
Background
The output of the power supplies can be
configured to shut down via an external switch.
The voltage across pins 7 and 20 are internally
pulled to +5V ±5% @ 500uA with 10kΩ pull-up
resistor. The output is turned off when a low TTL
level signal is applied.
Connection
PSUSwitch
Analog
connector
20
7
Output
Terminal
2 core shielded
wire or twisted
pair
 Pin7→ Switch
 Pin20 → Switch
 Wire shield → negative (-) output terminal
Steps
1. Connect the external switches according to the
connection diagrams above.
2. The switch will now shut down the power
supply when shorted.

GW Instek PSU Series Specifications

General

Brand	GW Instek
Model	PSU Series
Category	Power Supply
Language	English