Troubleshooting
Liebert
®
APS
™
60
5.0
T
ROUBLESHOOTING
This chapter provides the basic troubleshooting guide and required actions for maintaining the
Liebert APS system.
5.1
Active Alarms
In the event of an alarm, the User Interface LCD will display the latest alarm message. A list of
possible alarm messages are displayed in
Table 23
. If an alarm occurs and you are uncertain of the
corrective action to take, contact your local Liebert Service representative.
Table 23
Alarm message list
Alarm Message
Possible Cause
Corrective Action
Power Module Warning
One or more power modules is not
operating correctly.
View the corresponding module serial
number in the fault logs or event logs and
contact your local Liebert Service
representative.
Power Module Fail
One or more power modules has a
fault.
View the corresponding module serial
number in the fault logs or event logs and
either replace the module or contact your
local Liebert Service representative.
Power Module
Over Temp Warning
One or more power modules is
operating at an internal high
temperature.
Check the air filters located behind the
bezels and clean if necessary, or check
to see if the ambient temperature is too
high. If these conditions do not exist,
contact your local Liebert Service
personnel.
Power Module
Over Temp Shutdown
One or more power modules has
stopped operating due to an internal
over temperature.
Check the air filters located behind the
bezels and clean if necessary, or check
to see if the ambient temperature is too
high. If these conditions do not exist,
contact your local Liebert Service
representative.
Power Module Fan Failure
One or more of the power module
fans has failed.
Check to see if the fan is blocked. If not,
contact your local Liebert Service
representative.
Insufficient Capacity To Start
Inverter
The load value exceeds the maximum
load capacity of all operating
modules.
Ensure all power modules are inserted
and the locking lever is fully inserted. If all
modules are active, add power modules
to increase capacity or contact your local
Liebert Service representative.
PM Locking Lever In
Remove Position
The power module locking lever is not
in the locked position.
Check the locking lever to ensure it is
fully inserted. If so, contact your local
Liebert Service representative.
Input Phase A Not Qualified
A-phase voltage is too high or too low.
Check the upstream feeder breaker or
the UPS input breaker and reset if
necessary, or contact your local Liebert
Service representative.
Input Phase B Not Qualified
B-phase voltage is too high or too low.
Check the upstream feeder breaker or
the UPS input breaker and reset if
necessary, or contact your local Liebert
Service representative.
Input Phase C Not Qualified
C-phase voltage is too high or too
low.
Check the upstream feeder breaker or
the UPS input breaker and reset if
necessary or contact your local Liebert
Service representative.
L1L2 Phase Reversed
Two phases are reversely connected.
Have a qualified electrician check the
phase rotation at the distribution panel
and/or at the UPS input terminal block. If
this is not the problem, contact your local
Liebert Service representative.
Содержание Liebert APS
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