GW Instek PSU-Series User Manual - Manual (Page 136)

PSU Series User Manual
136
External Operation and Status Monitoring
Background The analog control connector can also be used
to monitor the status operation and alarm
status of the instrument.
The pins are isolated from the power supply
internal circuitry by photo couplers. Status
Com1 (Pin 1) and Status Com2 (Pin 5) are photo
coupler emitter outputs, whilst pins 2~3, 14~17
are photo coupler collector outputs.
A maximum of 30V and 8mA can be applied to
each pin. The Status Com pin is floating with an
isolation voltage of 60V.
Name and Pin
Description
STATUS
COM1
1 Common (photo coupler
emitter) for status signals 2, 3,
14, 15 and 16.
CV STATUS 2 Low when CV mode is active.
CC STATUS 3 Low when CC mode is active.
ALM STATUS 14 Low when any of the protection
modes are tripped (OVP, OCP,
Sense_ALM, OTP_M, AC Fail,
OTP_S, Fan_Fail, HW_OVP,
and Shutdown). Active low.
PWR ON
STATUS
15 Active low.
OUT ON
STATUS
16 Low when the output is on.
Pins 2, 3, 14, 15, 16
1 (Status COM1)