Vertiv
| Liebert
®
ITA2
™
User Manual |
61
Inverter relay welded
The inverter relay is shorted.
Parallel No. abnormal
The parallel online number is different from the setting number. Check that the parallel
number at the Settings Screen is the same as the actual on-line number and that the
parallel cables are normal.
Parallel comm fault
The local UPS and its online frequency configuration is different or the parallel address is
conflicted. Please check that the parallel system parameter setting is the same as the
local parameter setting.
Parallel cable connection
abnormal
Detect the parallel cables are loosened
Input neutral lost
The AC input mains N line is not detected. Please check that the input N line is opened or
loosened.
Input ground lost
Check that the PE line is well connected, and the alarm can be cleared on line.
Input phase reversed
The mains AC input phase is reversed. Normally, Phase B lags Phase A of 120 degrees, and
Phase C lags Phase B of 120 degrees.
Input abnormal
The retifier and charger are off due to the mains voltage and frequency exceeding normal
renage. Check that the rectifier input phase voltage and frequency exceed the normal
range or that the mains has power-off.
Rectifier overload
The output power is larger than the rectifier overload point. Check that the input voltage
meets the output load, mains input 176V ~ 100V, the load 100% ~ 50% linear derating.
Battery reversed
The battery positive and negative are reversed. Reconnect the battery and check the
battery cables connection.
Battery low pre-warning
This alarm occurs when the battery reaches the EOD. After the pre-warning, the battery
capacity allows two minutes discharge at full load. The user can set the time ranging from
2min~30min, (2 min by default). Please shut down the load timely.
Battery voltage abnormal
When battery is connected, the system checks that the battery voltage exceeds the
normal setting range. Check that the battery terminal voltage exceeds the normal range.
No battery
Check the battery and battery cables connection.
Battery series not qualified
The actual connected battery cells are different from the setting cells. Please change to
the same.
Battery aged
The battery capacity is less than 25% of the initial capacity. Battery replacement is
recommended
Battery test fail
The battery low voltage is detected when the battery has manual or peroidical self-test.
Battery replacement is recommended.
Battery overtemp
Battery ambient temperature too high. Check that the battery ambient temperature is
higher than setting value 40 ~ 60? (default: 50?).
Battery cabinet not
connected
The battery cabinet is not connected to the system.
Fan fault
At least one fan is faulty. Check that the fan is blocked or the cables connection is
loosened.
System overtemp
Internal heat sink temperature too high, and the inverter is off. Only each module heat sink
temperature decreased to the setting value can you silence the alarm. The system can
automatically start after overtemperature fault is solved.
If overtemperature, check:
Ambient temperature too high or not
Dust is blocked or not
Fan fault or not
Inverter overload
Inverter load capacity is larger than the rated value, overload delay time is up, inverter
shuts down. If bypass is available, the system will transfer to the bypass mode, otherwise
the output is failure. Check that the actual inverter load capacity, if overloaded, just
reduce the load capacity, and the system will transfer to the inverter mode after five
minutes with alarm cleared.
Table 17
UPS alarm messages
(continued)
Alarm message
Description
Summary of Contents for Liebert ITA2-08KRT208
Page 1: ...Liebert ITA2 8 10kVA 60Hz 208 220V Three Phase UPS User Manual...
Page 40: ...Vertiv Liebert ITA2 User Manual 34 Figure 31 Status page menus...
Page 70: ...Vertiv Liebert ITA2 User Manual 64 NOTES...
Page 71: ...Vertiv Liebert ITA2 User Manual 65...
Page 72: ...Vertiv Liebert ITA2 User Manual 66...
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