Emerson 480V user manual UPS status messages, Event Message Description / Suggested Action if any

Models: 480V

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UPS Status Messages

APPENDIX A - UPS STATUS MESSAGES

Table 36 shows all event messages as they appear in the current status area of the LCD and in 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 2.11 UPS Status Messages.

Table 36 UPS status messages

Event Message

Description / Suggested Action (if any)

 

 

Inverter Comm. Fail

The RS-485 communication between internal monitor and inverter has failed. Contact Liebert

Global Services at 800-543-2378 for assistance.

 

Rectifier Comm. Fail

The RS-485 communication between internal monitor and rectifier fails. Contact Liebert Global

Services at 800-543-2378 for assistance.

 

 

The CAN communication between different UPS units within a parallel system has failed.

 

Check if there are some UPS units not powered on in the parallel system. If so, power on these

Parallel Comm. Fail

UPS units and check if the alarm disappears.

 

Press Fault Clear push button.

 

If alarm does not clear, contact Liebert Global Services at 800-543-2378

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 UPS room.

 

 

Replace Battery

Battery should be replaced. Contact Liebert Global Services at 800-543-2378 for assistance.

 

 

 

Before the end of discharging, battery under-voltage pre-warning should occur. After this pre-

Battery Low Pre-warning

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 to prevent damage to equipment and data.

 

 

Battery End of Discharge

Inverter turned off due to low battery voltage.

Check the utility failure and try to recover it.

 

Mains Volt. Abnormal

Mains voltage exceeds the upper or lower limit and results in rectifier shutdown.

Check the input line-to-line voltage amplitude of rectifier.

 

Mains Undervoltage

Mains voltage is undervoltage 288V~384V line to line voltage with derated load.

Check the input line-to-line voltage amplitude of rectifier.

 

Mains Freq. Abnormal

Mains frequency is out of limit range and results in rectifier shutdown.

Check the rectifier’s input voltage frequency

 

Rectifier Fault

Contact Liebert Global Services at 800-543-2378 for assistance.

 

 

 

The temperature of rectifier inductor of rectifier common mode inductor is too high to keep the

Input Inductor Overtemp.

rectifier running.

Check the ambient temperature and ventilation; contact Liebert Global Services at

 

 

800-543-2378 for assistance.

 

 

Rectifier Overtemp.

The temperature of the heat sink is too high to keep the rectifier running.

The UPS can recover automatically. Check the environment and ventilation.

 

Charger Fault

The charger has a fault. Contact Liebert Global Services at 800-543-2378 for assistance.

 

 

Control Power 1 Fail

Control Power 1 has failed or has been lost. Contact Liebert Global Services at 800-543-2378

for assistance.

 

Mains Phase Reversed

Input phase sequence is inverse. Contact Liebert Global Services at 800-543-2378 for

assistance.

 

Rectifier Overcurrent

The current of rectifier is over limit. Contact Liebert Global Services at 800-543-2378 for

assistance.

 

Soft Start Fail

Rectifier could not start due to low DC bus voltage. Contact Liebert Global Services at

800-543-2378 for assistance.

 

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Emerson 480V user manual UPS status messages, Event Message Description / Suggested Action if any

480V specifications

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