Trouble Shooting According To Fault Indication - CyberPower OLS6000E User Manual

Work Mode differ
Setting differ
ECO In Parallel
Fuse open

7.2. Trouble Shooting According to Fault Indication

Problem Displayed
Output Short
Over Load
Neg power fail
Over Temperature
Fan fail
Back feed
There are different
power strategy setting
in parallel system
There are different
setting in parallel
system
ECO function is
enabled in parallel
system
Input fuse break
Possible cause
Output short circuit
Over Load
The load is pure
inductive and capacitive
Inside temperature of
UPS is too high
Fan blocked or
disconnected over time
Output voltage is
returned to input
The UPS with different power
strategy setting (Ex. one Line mode
and one Converter mode) are
forbidden to parallel
Check the setting.
ECO function is forbidden in parallel
system
Check the input fuse status
Remedy
Remove all the loads. Turn off the
UPS. Check if UPS output and loads
is short circuit. Ensure short circuit is
removed before turning on again.
Check the loads and remove some
non-critical loads;
Check if some loads are failed.
Remove some non-critical loads;
Bypass supplies the load first, ensure
there is no overload, then turn on UPS
Check the ventilation of UPS and the
ambient temperature.
Check the fan status.
Consult dealer
28