User manual

FP series user manual
Allis Electric - 40 - Rev3. July 2005
5. Troubleshooting
5.2 Troubleshooting Guide
Problem Possible Cause Action
UPS will not turn on 1. Input breaker switch is OFF.
2. UPS input breaker has
tripped.
3. Input/battery cables not
connected properly.
1. Ensure that the UPS Input
breaker is switched ON.
2. Ensure the connected load is
less than the UPS rating.
3. Ensure that input cable and
battery cables are securely
fitted into the UPS and
battery module. Check that
the battery breaker is
switched ON.
UPS will not provide
power to load
1. Power only present on one
output receptacle.
2. No output from output
receptacles.
3. Output fails as soon as load
connected.
1. Check the output fuse.
2. Check the connected cable.
3. Load exceeds maximum UPS
rating. Remove some load.
UPS operates from
battery despite
presence of utility
power
1. Input fuse blown.
2. Generator does not power
the UPS.
1. Replace input fuse.
2. Check that the generator is
properly governed for both
frequency and voltage. Some
low-grade generators will not
supply power stable enough
to run a UPS.
UPS drops the load
and switches to
Bypass Mode
Load exceeds UPS rating. 1. Disconnect some load from
UPS.
UPS battery time is
not long enough or
the unit does not run
on battery at all
1. Batteries may need
replacing.
1. Press Function/Test button. If
UPS switches to Normal Mode
within ten seconds, then
change the batteries.
UPS is beeping 1. Refer to audible alarms
table.
1. Refer to the audible alarms
table.
UPS in Bypass Mode
after disabling Green
Mode.
1. UPS has not started in
Normal Mode.
1. Press STANDBY button.
Alarm will beep once and UPS
switches to Normal Mode.
Button on front panel
does not work
1. UPS in start-up mode.
2. Button damaged.
1. Wait for start-up to complete.
2. Call service for a Returned
Material Authorization (RMA)
number.