Liebert S600 - Page 52

Vertiv|Liebert® S600 10kVA ~ 20kVA UPS | User Manual 52
Alarm
Explanation
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.
Check that the UPS mains input phase sequence is correct. If not, just modify it
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
volatge meets the output load, mains input 176V ~ 100V, the load 100% ~ 50%
linear derating
Battery reversed
The battery positive and negative are reversed. Please 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, please check:
1. Ambient temperature too high or not
2. Dust is blocked or not
3. Fan fault or not