35
Figure 3-29 Reset All Events Confirmation Screen
3-3. Alarm List
In Table 3-12, it provides the complete list of UPS alarm messages.
Table 3-12: Alarm List
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 can’t 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
the fan is working
Fault! CAN Fault
CAN communication fault
Fault! TRIG0 Fault
Synchronized 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 Loosen Fault
As stated.
Fault! DSP MCU Stop Communicate
As stated.
Fault! Bypass Temperature Fault
As stated
Fault! Bypass SCR Fault
As stated.
