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614-07977-00_EN
5. Maintenance
5.1 Troubleshooting
Operation status
Possible cause
Action
Batteries disconnected
The UPS does not recognise
the internal batteries
If the condition persists, contact
your service representative
The batteries are disconnected
Verify that all batteries are properly
connected. If the condition persists,
contact your service representative.
Overload
Power requirements exceeds the
UPS capacity (greater than 105 %
of nominal)
Remove some of the equipment
from the UPS. The UPS continues
to operate, but may shutdown if the
load increases. The alarm resets
when the condition becomes
inactive.
End of battery life
The end of the battery life is
reached.
Contact your service representative
for battery replacement.
Event
An UPS event occurs
Example:
Remote Power OFF, the RPO
contact has been activated to
shutdown the UPS and now
prevents restart.
Set the contact back to its normal
position and press button
to restart.
UPS fault
An internal failure occured with the
UPS
The UPS does not protect the
equipment anymore.
Note.
the alarm message and
the UPS Serial Number, then contact
your service representative.
Troubleshooting a UPS equipped with the HotSwap MBP module
Indication
Diagnostic
Correction
1
The load is no longer supplied
when the rotary switch
(55)
on
the
HotSwap MBP
module is
set to Bypass position.
l
The protected devices
are connected to the UPS
output instead of to the
HotSwap MBP
module.
l
The AC-power cord is
connected to the UPS input
instead of to the
HotSwap
MBP
module.
Check the wiring between
the UPS and the
HotSwap MBP
module (see section 3.6).
2
The load is no longer supplied
when the rotary switch
(55)
on
the
HotSwap MBP
module is
set to Normal position.
l
The UPS is shut down.
l
The wiring between the
UPS and the
HotSwap MBP
module is incorrect.
l
Start the UPS.
l
Check the wiring between
the UPS and the
HotSwap
MBP
module
(see section 3.6).
3
The load is no longer supplied
after AC-power fails.
l
The rotary switch
(55)
on
the
HotSwap MBP
module
is set to Bypass position.
l
The wiring between the
UPS and the
HotSwap MBP
module is incorrect.
l
Set the rotary switch
(55)
on the
HotSwap MBP
module to Normal position.
l
Check the wiring between
the UPS and the
HotSwap
MBP
module
(see section 3.6).