Fault Identification And Correction - Powerware 9320 Installation And Operation Manual

9.3

Fault Identification and Correction

The major alarm conditions that will be encountered are shown in the following table:
Alarm Condition
UPS FAULT
MAINS FAILURE
OVERCURRENT OR
SHORT CIRCUIT
OVERLOAD
OVERTEMPERATURE
BATTERY CHARGER
OFF
INVERTER FAULT
NON-SYNCH
BATTERY LOW
MANUAL BYP IS
CLOSED
9-2
Meaning
There is a fault in the UPS
and therefore normal
operation cannot be
guaranteed.
The utility power supply is
outside its prescribed tolerance.
There is a short circuit at the
output of UPS. (on load side)
Load exceeds the UPS rated
power.
UPS temperature has exceeded
the allowed value.
The attached battery and the
battery charger set-up do not
correspond or battery charger
fault.
Inverter is faulty.
The inverter and utility power
are not synchronized.
The battery is nearly
discharged.
Maintenance Bypass closed.
Load supplied by utility power.
Powerware 9320 (10 kVA and 20 kVA) Installation and Operation
Suggested Solution
Call the authorized service center for
assistance
The input power to UPS is too low or
missing.
If site power appears to be OK, check the
input circuit breakers etc. supplying the
UPS
Check all output connections and repair
as required.
Identify which piece of equipment is
causing the overload and remove it from
the UPS.
Check that the ambient temperature of the
UPS is less than 40° C. and that cooling
air flow is not blocked.
If the ambient temperature is normal call
the authorized service center for
assistance.
Call the authorized service center for
assistance.
Call the authorized service center for
assistance.
The frequency of the input voltage to the
UPS is outside operational limits and the
UPS static bypass has been temporarily
disabled.
Shutdown load connected to UPS before
the UPS switches itself off to protect its
batteries
This alarm is only displayed if the UPS is
on Maintenance Bypass
164201416 REV A 071103