PSU Series User Manual
28
Alarms
The PSU power supplies have a number of protection features.
When one of the protection alarms is tripped, the ALM icon on the
display will be lit and the type of alarm that has been tripped will
be shown on the display. When an alarm has been tripped the
output will be automatically turned off. For details on how to clear
an alarm or to set the protection modes, please see page 49.
Over voltage protection (OVP) prevents a high
voltage from damaging the load. This alarm can
be set by the user.
Over current protection prevents high current
from damaging the load. This alarm can be set by
the user.
Under voltage limit. This function sets a minimum
voltage setting level for the output. It can be set by
the user.
Over temperature protection for slave and master
board. OHP is a hardware protection function.
Only when the unit has cooled can the over
temperature protection alarms be cleared.
Master board over temperature protection.
Slave board over temperature protection.