Vertiv Liebert APM 300, Руководство пользователя

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Chapter 4 Operator Control And Display Panel 33
APM 300 Integrated UPS Single Module And Parallel System User Manual
Table 4-9 Alarm list
Alarm Explanation
Comm. fail The communication of the internal monitor with the rectifier, inverter or bypass failed
Parallel Comm. Fail
The communication between the inverters of each UPS in the parallel system failed.
1. Check if any UPSs are offline. If yes, power on these UPSs and check if the alarm
disappears.
2. Press the FAULT CLEAR key
Battery Overtemp. The battery temperature is over limit. Check the battery temperature and ventilation
Ambient Overtemp. The ambient temperature is over limit. Check the ventilation of the UPS room
Battery Replaced Battery test failed. The battery needs replacement
Battery Low Pre-warning
Before the EOD, battery low pre-warning will occur. After this pre-warning, the battery will
have the capacity for three minutes discharging with full load. The time is user-settable
from 3 minutes to 60 minutes. Please shut down the load in time
Battery End of Discharge Inverters turned off due to battery EOD. Check the mains failure and try to recover it
Mains Volt. Abnormal
The mains voltage is outside specifications and results in rectifier shutdown. Check the
rectifier input phase voltage
Mains Undervoltage Mains voltage is under limit with derated load. Check the rectifier input line voltage
Mains Freq. Abnormal
The mains frequency is outside specifications and results in rectifier shutdown. Check the
rectifier input voltage and frequency
Batt. Charger Fail The voltage of the battery charger is too high
Control Power 1 Fail The UPS is operating but the control power is abnormal or not available
Mains Phase Reversed The AC input phase rotation is reversed
Rectifier Fault
Internal fault of a power module is detected and results in rectifier shutdown and battery
discharging
Rectifier Overtemp
The temperature of the heatsink is too high to keep the rectifier running. The UPS can
recover from this fault automatically. Check the environment and ventilation
Soft Start Fail
The rectifier can not start owing to low DC bus voltage. Seek assistance from the local
customer service center of Emerson
Bypass Unable to Trace
This alarm is triggered by an inverter software routine when the amplitude or frequency of
bypass voltage is outside specifications. The amplitude threshold is fixed for
±
10% rating.
This alarm automatically resets once the bypass voltage goes normal.
1. First verify that the bypass voltage and frequency displayed on the LCD are within the
selected ranges. Note that here the rated voltage and frequency are specified by Output
voltage level and Output frequency level respectively.
2. If the displayed voltage is believed to be abnormal, then verify the bypass voltage and
frequency presented to the UPS. Check the external supply if it is found faulty
Bypass Abnormal
This alarm is triggered by an inverter software routine when the amplitude or frequency of
bypass voltage exceeds the limit. The amplitude threshold is fixed for
±
10% rating. This
alarm automatically resets once the bypass voltage returns to normal.
1. First check if there are some relevant alarms such as Bypass phase reverse and Mains
neutral lost. If they appear, solve them first.
2. Then verify that the bypass voltage and frequency displayed on the LCD are within the
bypass limits. Note that here the rated voltage and frequency are specified by Output
voltage level and Output frequency level respectively.
3. If the displayed voltage is believed to be abnormal, then measure the bypass voltage and
frequency presented to the UPS. If the bypass voltage and frequency are abnormal, check
the external bypass supply.
4. If the mains is likely to trigger this alarm frequently, the bypass limits can be changed to
a wider tolerance through the service configuration software