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