AEG PROTECT D LCD+ User Manual page 82

82
Conditions Possible cause
Emergency RPO is active
power off
Fan fault Fan abnormal
Site fault Phase and neutral
conductor at input of
UPS system are
reversed
Over Over temperature is too
temperature high, UPS goes to
fault bypass or stopped.
Output short Output short circuit
circuit occurred.
Action
1.Check the RPO connector
status
2.Reset the RPO fault through
LCD. Main menu – Control -
Reset fault state.
Check if the fan is running
normally
Site Fault detection disabled by
default. It can still be enabled /
disabled from the LCD settings
menu.
Reconnect all input wires.
Check the ventilation of the UPS
and check the ambient
temperature.
Check the output of UPS and
loads, make sure the short circuit
is removed before turning on
again.