JLG X20JP - X600AJ Service Manual User Manual
Page 290
SECTION 6 - JLG CONTROL SYSTEM
6-74
– JLG Lift –
3121623
The Inverter fault codes are always prefaced by “05A” ini-
tials, for example 05A79 or 05A38, etc.
IMPORTANT: BEFORE STARTING THE DIAGNOSIS
WITH FAULT RESEARCH, CONTROL THE VOLTAGE
LEVEL OF THE BATTERY PACK.
76
Key off shorted
Cause:
Key-off signal is low at key-on.
Solution:
Check the 12 volt battery and its connexions, check the DC-DC and its connexions, check
the inverter connexions; replace the inverter.
77
Contactor open
Cause:
Main contactor is not closed even if fed by the inverter
Solution:
Check the main contactor
77
Tiller Error
Cause:
Input mismatch between hard & soft switch input and tiller input.
Solution:
Check the Can Bus Line connexions.
78
VACC not OK
Cause:
Solution:
Usually it is a temporary anomaly due to a particular working condition. In case the anomaly
persists replace the inverter.
79
Incorrect start
Cause:
Starting procedure not correct
Solution:
Control the electric connections. Usually it is a temporary anomaly due to a particular work-
ing condition. In case the anomaly persists replace the inverter.
80
Emergncy MDI CAN code alarm
Cause:
Emergency MDI code alarm
Solution:
Check the inverter feeds
82
Encoder Error
Cause:
Problem on the encoder
Solution:
Check the connexions from the inverter to the electric motor; replace the inverter
86
Pedal wire KO
Cause:
Solution:
Usually it is a temporary anomaly due to a particular working condition. In case the anomaly
persists replace the inverter.
86
Pos EB shorted
Cause:
Output not correct
Solution:
Check the inverter connexions; replace the inverter
89
Power MOS shorted
Cause:
Short circuit in the power mosfets
Solution:
Replace the inverter
93
Wrong set batt
Cause:
With supply ON, the control test detected batteries not in conformity.
Solution:
Replace the batteries with the original ones supplied by JLG.
94
Current sensor KO
Cause:
Max current setup procedure active.
Solution:
Contact JLG after sales dept.
96
Analog Input
Cause:
Problem on the A/D conversion of uC
Solution:
It should be a temporary error, if the problem occurs permanently replace the inverter
99
Check up needed
Cause:
Solution:
Contact JLG after sales dept.
Table 6-10.