LBS Dragon Power 2, User Manual

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16
4.2 Fault code and solution
When the "FAULT" is long bright, and "
"
symbol on the UPS LCD flashes, the UPS is in fault
state. UPS automatically switches to the error status page (refer to 3.5) to observe the fault
code and make appropriate processing according to the following table.
Fault
code
Indication Possible reasons Treatment measures
1 Bus boosting soft-
starting fail 1. AC abnormal
2. Abnormal soft-starting
circuit of bus Check the mains, if all normal,
please contact the supplier.
2 Bus over voltage 1. AC abnormal
2. Software processing error
3. Bus capacitor failure Check the mains, if all normal,
please contact the supplier.
3 Bus under voltage 1. City electricity is too low.
2. Software processing errors
3. Bus capacitor failure
1. Please check the rectifier fan.
2. Clean the obstacles on the air
duct of the rear panel of the UPS.
3. Check the loads.
4. If all of above do not work, please
contact the supplier.
7 Over temperature 1. Fan failure
2. The air duct on the rear
panel of the UPS is blocked;
3. Overload
4. NTC sensor abnormality or
abnormal wiring
5. Power component IGBT is
damaged.
1. Please check the rectifier fan;
2. Clean the obstacles on the air
duct of the rear panel of the UPS;
3. Check the loads;
4. If all of above do not work, please
contact the supplier.
8 Battery relay
short circuit Relay RL1/RL3 hardware
damaged Please contact the supplier
9 Bus relay soft-
starting fail 1. City electricity abnormal
2. Bus soft-staring circuit
abnormal Please check the city electricity
power, if no abnormal, please
contact the supplier.
17 Inv soft-starting
fail 1. Some hardware of the
inverter is damaged;
2. The control panel fails. Please contact the supplier.
18 Inv output over
voltage 1. Some hardware of the
inverter is damaged;
2. The control panel fail. Please contact the supplier.
19 Inv output under
voltage 1. Some hardware of the
inverter is damaged;
2. The control panel fails. Please contact the supplier.
20 Inv short circuit 1. Some hardware of the
inverter is damaged.
2. Output short circuit 1. Check if the short circuit exists on
the output of UPS.
2. Check if the load is short circuit.
3. If no abnormal, please contact
the supplier.