socomec ITYS, Инструкция по установке и эксплуатации

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36
ITYS
1-10 kVA - Ref.: IOMITYTWXX05-GB 00
20. TROUBLESHOOTING
FAULT
Problem Displayed Possible cause Remedy
Inv Overload Fault Overload Check the loads and remove some non-
critical loads.
Check if some loads have failed.
Byp Overload Fault Overload Check the loads and remove some non-
critical loads.
Check if some loads are failed.
Output Short Circuit Output short circuit Remove all the loads. Turn off the UPS.
Check if UPS output and loads have
short circuited
Ensure short circuit is removed before
turning on again.
Heatsink Over Temperature Fault Internal UPS temperature of UPS high Check UPS ventilation of UPS and am-
bient temperature.
Bus Over Voltage Internal UPS fault Consult dealer.
Bus Under Voltage Internal UPS fault Consult dealer.
Bus Unbalance Internal UPS fault Consult dealer.
Bus short Internal UPS fault Consult dealer.
Bus Softstart Fail Internal UPS fault Consult dealer.
Inv Over Voltage Internal UPS fault Consult dealer.
Inv Under Voltage Internal UPS fault Consult dealer.
Inv Softstart Fail Internal UPS fault Consult dealer.
Negative Power Fault The load is pure inductive and capacitive Remove some non-critical loads.
Bypass supplies the load fi rst, ensure
there is no overload, then turn on UPS.
Fan lock fault Fan blocked or disconnected over time Check the fan status
Backfeed Output voltage has returned to input Consult dealer
OTHER CASES
Problem Displayed Possible cause Remedy
No indication, no warning tone even
though system is connected to mains
power supply No input voltage Check the building wiring and input cable.
Check if the input breaker is closed.
BYPASS LED lights up even though the
power supply is available Inverter not switched on Press On-Switch “I” to turn on UPS.
BATTERY LED lights up, and alarm sounds
every 4 seconds Input voltage and/or frequency are out of
tolerance Check input power source.
Check the building wiring and input cable.
Check if the input breaker is closed.
Emergency supply period shorter than
nominal value Batteries not fully charged / battery defect Charge the batteries for at least 12 hours
and then check capacity.