If turning lift truck on again, alarm is not active, then:
1. replace the cable connecting control board and inverter.
2. replace the inverter;
3. replace control board.
If turning lift truck on again, alarm is active, then :
1. replace the inverter;
2. replace the motor.
Inverter capacitors pre-charge too fast
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Eye alarm code: 9
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Alarm level: 1
-
Alarm cause: pre-charge capacitors voltage increases too fast when you turn the system
on.
In case of too fast pre-charge alarm, follow this procedure:
1. replace main breaker.
2. replace cable connecting the CN1 output of the control board with the corresponding
inverter;
3. replace the inverter connected with the CN1output of control board
4. replace control board
Pump motor inverter overtemperature
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Eye alarm code: 10
-
Alarm level: 6
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Alarm cause: the inverter temperature (measured with a temperature probe), exceeds 100
º C, or is inside [95 ºC, 100 ºC] range at least 30 s.
In case of alarm follow this procedure:
1. alarm could be caused by ineffective temperature dissipation.
2. Verify thermal coupling between inverter block and aluminium plate, and between
aluminium plate and truck ballast. The presence of a correct amount of thermal grease
in the coupling is essential to ensure an efficient heat exchange;
replace cable connecting the output CN4 of the control board to the pump inverter;