JLG X23J - X700AJ Service Manual - Manual (Page 530)

SECTION 6 - JLG CONTROL SYSTEM
3121448 – JLG Lift – 6-41
38 Contactor Open
Cause: The inverter feeds the relay’s coil but the contact does not close.
Solution: Control the relay and the power to the coil
49 I=0 Ever
Cause: Feedback current from motor’s sensor not constantly kept at 0
Solution: Control the connection with the motor
53 STBY I high
Cause: Fault detected in the inverter
Solution: Usually it is a temporary anomaly due to a particular working condition. In case
the anomaly persists replace the inverter.
60 Capacitor Charge
Cause: Problem in the inverter
Solution: Control the connections and the motor phases
61 High temperature
Cause: Temperature rise in the inverter.
Solution: Allow a better cooling to the inverter. If the anomaly persists contact JLG after
sales dept.
65 Motor temper at
Cause: High motor temperature
Solution: Stop the machine temporarily to enable motor cooling
67 Can Bus KO
Cause: The inverter does not receive any information from Can Bus line
Solution: Control the connections with the multi function tool
70 Encoder Error
Cause: Anomaly detected on encoder (= engine rpm sensor)
Solution: Control the rpm sensor connection. The anomaly may also be caused by a bear-
ing fault.
73 Therm is sensor KO
Cause: The signal from the temperature sensor is higher than 4,95 Volt or lower than 0,1
Volt
Solution: Usually it is a temporary anomaly due to a particular working condition. In case
the anomaly persists replace the inverter.
74 Driver shorted
Cause: Anomaly to the relay supply.
Solution: Control relay supply. Usually it is a temporary anomaly due to a particular work-
ing condition. In case the anomaly persists replace the inverter.
75 Driver shorted
Cause: Anomaly to the relay supply.
Solution: Control relay supply. Usually it is a temporary anomaly due to a particular work-
ing condition. In case the anomaly persists replace the inverter.
Table 6-6. INVERTER Diagnostic trouble code chart
CODE MEANING