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A
B UPS S
PPENDIX
Table 57 shows all event messages as they appear in the current status area of the LCD or the
history log, along with a description and recommended actions, if any. For further information on the
current status area and the history log, see 9.10 - UPS History Log.
Table 57
UPS status messages
Event Message
Comm. Fail
Battery Overtemp.
Ambient Overtemp.
Replace Battery
Battery Low Pre-warning
Battery End of Discharge
Mains Volt. Abnormal
Mains Undervoltage
Mains Freq. Abnormal
Rectifier Fault
Rectifier Overtemp.
Charger Fault
Input Fuse Fail
Control Power 1 Fail
Mains Phase Reversed
Soft Start Fail
Bypass Unable to Trace
Bypass Abnormal
®
™
Liebert
APM
M
TATUS
ESSAGES
The CAN communication between internal monitor and rectifier/inverter/bypass fails. Contact
Liebert Services at 800-543-2378 for assistance.
The Battery temperature is over limit. Check the battery temperature and ventilation.
The Ambient temperature is over limit. Check the ventilation of UPS room.
Battery should be replaced. Contact Liebert Services at 800-543-2378 for assistance.
Before the end of discharging, battery under-voltage pre-warning should occur. After this pre-
warning, battery should have the capacity for 3 minutes discharging with full load. The time is
user configured from 3 to 60 minutes.
Shut down the load in time.
Inverter turned off due to low battery voltage.
Check the utility failure and try to fix it.
Mains Voltage exceeds the upper or lower limit and results in rectifier shutdown.
Check the input line-to-neutral voltage amplitude of rectifier.
Mains Voltage is undervoltage (120v~132V).
Check the input line-to-line voltage amplitude of rectifier.
Mains frequency is out of limit range and results in rectifier shutdown.
Check the rectifier's input voltage frequency.
Rectifier Fault; Contact Liebert Services at 800-543-2378 for assistance.
The temperature of heat sink is too high to keep the rectifier running.
The UPS can recover automatically. Check the environment and ventilation.
The Charger has failed. Contact Liebert Services at 800-543-2378 for assistance.
Input fuse is open. Contact Liebert Services at 800-543-2378 for assistance.
Control Power 1 has failed or has been lost. Contact Liebert Services at 800-543-2378 for
assistance.
Input phase sequence is reversed. Contact Liebert Services at 800-543-2378 for assistance.
Rectifier could not start due to low DC bus voltage. Contact Liebert Services at 800-543-2378 for
assistance.
This alarm is triggered by an inverter software routine when the amplitude or frequency of bypass
voltage is beyond the normal range.
The amplitude threshold is fixed for positive and negative 10% rating.
This alarm automatically resets once the bypass voltage goes normal.
1. First verify that the bypass voltage and frequency displayed on the panel is within the selected
range. Note 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 to be faulty.
Contact Liebert Services at 800-543-2378 for assistance.
This alarm is triggered by an inverter software routine when the amplitude or frequency of bypass
voltage exceeds the limit.
This alarm automatically resets once the bypass voltage goes normal.
First check if there are some relevant alarms such as "Bypass disconnect open", "Bypass phase
reverse" and "Mains neutral lost". If they appear, solve them first.
1. Then verify that the bypass voltage and frequency displayed on the panel is within the bypass
limit. Note 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 bypass supply if it is found to be faulty. If
the utility is likely to trigger this alarm frequently, the bypass limit can be changed a little larger
through the configuration software according to the customer's agreement.
Contact Liebert Services at 800-543-2378 for assistance.
Description / Suggested Action (if any)
130
Maintenance
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