SECTION III
Operation
Page 3.18
BP+2.9X
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Table 3.2 (continued)
Screen Message
Description
Corrective Action
inv bIn fusB
Inverter fuse B blown
Test/replace inverter fuses on A2 power
assembly.
inv bIn fusC
Inverter fuse C blown
Test/replace inverter fuses on A3 power
assembly.
inv PS fail
Power supply failure
Test/replace inverter drive boards on A1,
A2and A3 power assemblies.
inv PS norml*
Power supply normal
No action required
inv Iocked*
lnverter phase locked
No action required
inv not lock
Inverter not phase locked
Verify UPS input voltage and frequency.
inv ovr tmpA
Inverter over temperature. phase
A
Verify cooling fans are operating on A1
power assembly.
inv ovr tmpB
Inverter over temperature, phase
B
Verify cooling fans are operating on A2
power assembly.
inv ovr tmpC
Inverter over temperature, phase
C
Verify cooling fans are operating on A3
power assembly.
inv norm tmp*
Inverter temp. normal
No action required
inv cur norm*
Inverter current normal
No action required
inv OC shtdn
Inverter shut down -over current
Remove some of the load
inv OT shtdn
Inverter shut down -over
temperature
Room is too not or fan failure
inv cur limt
Inverter current limit
Reduce load on UF’S
xfer enabled*
Transfer enabled
No action required
Rexfr enabled*
Retransfer enabled
No action required
*
Not an alarm condition.
