86
INFOSEC UPS SYSTEM - 15, rue du Moulin - 44880 Sautron - FRANCE - www.infosec-ups.com
Hot Line
– Tel + 33 (0)2 40 76 15 82 - Fax + 33 (0)240 94 29 51 - hotline@infosec.fr – 04 17 AA 59 201 06
6. Troubleshooting
Most of the Fault and Warning need to be released by authorized service personnel. Few of them
can be solved by users themselves.
LCD Message
Explanation
Solution
Fault! Bus Over Voltage
DC bus voltage is too high
Contact service personnel.
Fault! Bus Under Voltage
DC bus voltage is too low
Contact service personnel.
Fault! Bus Voltage
Unbalance
DC bus voltage is not balanced
Contact service personnel.
Fault! Bus Short
DC bus is short
Contact service personnel.
Fault! Bus Soft Start Time
Out
The rectifiers could not start due to low
DC bus voltage within specified duration
Turn off UPS and then restart the UPS.
If it fails again, contact service personnel.
Fault! Inverter Soft Start
Time Out
Inverter voltage cannot reach desired
voltage within specified duration
Turn off UPS and then restart the UPS.
If it fails again, contact service personnel.
Fault! Inverter Voltage Over Inverter Voltage over (Peak Value)
Contact service personnel.
Fault! Inverter Voltage High Inverter Voltage is too high
Contact service personnel.
Fault! Inverter Voltage Low
Inverter Voltage is too Low
Contact service personnel.
Fault! R Inverter Voltage
Short
R phase inverter Output is shorted
Contact service personnel.
Fault! S Inverter Voltage
Short
S phase inverter Output is shorted
Contact service personnel.
Fault! T Inverter Voltage
Short
T phase inverter Output is shorted
Contact service personnel.
Fault! RS Inverter Voltage
Short
R-S inverter Output is shorted
Contact service personnel.
Fault! ST Inverter Voltage
Short
S-T inverter Output is shorted
Contact service personnel.
Fault! TR Inverter Voltage
Short
T-R inverter Output is shorted
Contact service personnel.
Fault! Inverter R Negative
Power
R phase inverter Output Negative Power
over range
Contact service personnel.
Fault! Inverter S Negative
Power
S phase inverter Output Negative Power
over range
Contact service personnel.
Fault! Inverter T Negative
Power
T phase inverter Output Negative Power
over range
Contact service personnel.
Fault! Over Load Fault
Heavy overload causes UPS fault.
Reduce some load.
Fault! Battery Fault
Battery reverse
Check the polarity of battery connection
and contact service personnel.
Fault! Over Temperature
Make sure adequate space is allowed for
air vents and the fan is working
Check if the ambient temperature is over
specification.
Or contact service personnel.
Fault! CAN Fault
CAN communication fault
Contact service personnel.
Fault! TRIG0 Fault
Synchronized trigger signal fault
Contact service personnel.
Fault! Relay Fault
Inverter relay fault
Contact service personnel.
Fault! Line SCR Fail
Line SCR short circuit fault
Contact service personnel.
Fault! EEPROM Fault
EEPROM operation error
Contact service personnel.
Fault! Parallel Cable Loosen As stated.
Check if the parallel cable is loose and