Table 16. Typical Alarms and Conditions (continued)

Alarm or Condition

Possible Cause

Action

 

 

 

DC Link Over Voltage

The link or rail voltage has

The UPS transfers to Bypass mode if

(Alarm 28)

exceeded its upper threshold

supporting the load.

limit.

 

Continuous Alarm

 

 

 

 

 

 

DC Link Under Voltage

The link or rail voltage has

The UPS transfers to Bypass mode if

(Alarm 29)

dropped below its lower

supporting the load.

threshold limit.

 

Continuous Alarm

 

 

 

 

 

 

Rectifier Fault

The UPS has detected a fault in

Contact your service representative.

(Alarm 30)

the rectifier circuit while

 

attempting recovery from

 

Continuous Alarm

 

Bypass mode or Converter

 

 

 

 

mode.

 

Inverter Fault (Alarm 31) Continuous Alarm

The UPS has detected a fault in Contact your service representative. the inverter circuit while

attempting a recovery from Bypass mode or Converter mode.

Fatal EEPROM Fault

There is EEPROM data

Contact your service representative.

(Alarm 53)

corruption due to a failed

 

device or incorrect flash

 

Continuous Alarm

 

upgrade.

 

 

 

 

 

 

Output Short Circuit

The UPS has detected an

If the UPS is in Normal mode, the UPS

(Alarm 58)

abnormally low impedance

transfers to Bypass mode if available,

placed on its output and

otherwise, the UPS shuts down after five line

Continuous Alarm

considers it a short circuit.

cycles.

 

 

 

If the UPS is in Battery mode, the UPS shuts

 

 

down after five line cycles.

Fan Failure (Alarm 193) Continuous Alarm

The UPS has detected that one or more fans are not functioning properly.

This is an alarm only. Contact your service representative immediately and remove the load.

Silencing the Alarm

Press any button on the control panel to silence the alarm. Check the alarm condition and perform the applicable action to resolve the condition. If any new alarm becomes active, the audible alarm resumes, overriding the previously silenced alarm.

Troubleshooting 71

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Dell 2700W manual Silencing the Alarm