40
4. Control Panel and LCD Operations
4.3 Alarm List
Table 4.12
provides the complete list of UPS alarm messages.
Messages in the LCD
Explanation
Fault! Bus Over Voltage
DC bus voltage is too high.
Fault! Bus Under Voltage
DC bus voltage is too low.
Fault! Bus Voltage Unbalance
DC bus voltage is not balanced.
Fault! Bus Short
DC bus is short.
Fault! Bus Soft Start Time Out
The rectifiers cannot start due to low DC bus voltage within specified duration.
Fault! Inverter Soft Start Time Out
Inverter bus voltage cannot reach desired voltage within specified duration.
Fault! Inverter Voltage Over
Inverter Voltage is over Peak Value.
Fault! Inverter Voltage High
Inverter Voltage is too high.
Fault! Inverter Voltage Low
Inverter Voltage is too low.
Fault! R Inverter Voltage Short
R phase inverter Output is short-circuited.
Fault! S Inverter Voltage Short
S phase inverter Output is short-circuited.
Fault! T Inverter Voltage Short
T phase inverter Output is short-circuited.
Fault! RS Inverter Voltage Short
R-S inverter Output is short-circuited.
Fault! ST Inverter Voltage Short
S-T inverter Output is short-circuited.
Fault! TR Inverter Voltage Short
T-R inverter Output is short-circuited.
Fault! Inverter R Negative Power
R phase inverter Output Negative Power over range.
Fault! Inverter S Negative Power
S phase inverter Output Negative Power over range.
Fault! Inverter T Negative Power
T phase inverter Output Negative Power over range.
Fault! Over Load Fault
Heavy overload causes UPS fault.
Fault! Battery Fault
Batteries reversed.
Fault! Over Temperature
Make sure adequate space is allowed for air ventilation and that the fan is working.
Fault! CAN Fault
CAN communication fault.
Fault! TRIG0 Fault
Synchronised trigger signal fault.
Fault! Relay Fault
Inverter relay fault.
Fault! Line SCR Fail
Line SCR short circuit fault.
Fault! EEPROM Fault
EEPROM operation error.
Fault! Parallel Cable Loose Fault
As stated.
Fault! DSP MCU Stop Communicate As stated.
Fault! Bypass Temperature Fault
As stated
Fault! Bypass SCR Fault
As stated.
Line Fail
Utility lost or abnormal.
Line Restore
Utility recovered to normal.
Warning! EPO Active
Check the EPO connector.
Warning! Over Load Fail
The load devices are demanding more power than the UPS can supply. Line Mode will transfer to
Bypass Mode.
Warning! Communicate CAN Fail
CAN communication error.
Warning! Over Load
When in Line Mode, the load devices are demanding more power than the UPS can supply.
Warning! Battery Open
Battery not connected.
Warning! Battery voltage High
Battery voltage is too high.
Warning! Turn On Abnormal
As stated.
Warning! Charge Fail
As stated.
Warning! EEPROM Fail
EEPROM operation error.
Warning! Fan Lock
As stated.
Warning! Line Phase Error
As stated.
Warning! Bypass Phase Error
As stated.
Warning! N Loss
Neutral loss.
Warning! Internal Initial Fail
As stated.
Warning! Comm Syn Signal Fail
Communicate Synchronization Signal Fail.
Warning! Comm. TRIG0 Fail
Communicate Trigger signal fault.
Warning! Power Stage loss
Power stage is not detected.
Warning! Parallel Sys Config. Wrong
Parallel System Configure error.
Warning! Maintenance Bypass
Enter maintenance.
Warning! Battery Age Alert
Battery Life expiration.
Warning! Parallel UPS Cable Loose
As stated.
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