GW Instek PSU-Series User Manual - Manual (Page 28)

PSU Series User Manual
28
AC AC Fail. This alarm function is activated when
a low AC input is detected.
FAN FAIL Fan failure. This alarm function is activated
when the fan RPMs drop to an abnormally low
level.
Shutdown Force Shutdown is not activated as a result of
the PSU series detecting an error. It is a
function that is used to turn the output off
through the application of a signal from the
rear-panel analog control connector when an
abnormal condition occurs.
Alarm output Alarms are output via the analog control
connector. The alarm output is an isolated
open-collector photo coupler output.