Inverter Fault Codes - JLG X390AJ-X14J Supplement Manual

SECTION 3 - TROUBLESHOOTING AND FAULT CODES
Error Code
1
8
8
13
16
17
18
19
26
27
28
29
30
31
37
38
40
3-4
Table 3-3. Inverter Fault Codes
Error Condition
Wrong Config
Watch Dog
Flash Checksum
Eeprom KO
Aux output KO
Logic failure #3
Logic Failure #2
Logic failure #1
Current Sens KO
Phase KO
Pump Vmn Low
Pump Vmn High
VMN low
VMN High
Contactor closed
Contactor Open
Aux driv Shrt
Error Description
Eeprom memory not configured. Contact JLG.
The inverter is not able to
activate or turn off the electric
motor.
Software is corrupted or inverter
is damaged.
Hardware or Software problem in
Eeprom.
Electromechanical brake
problem.
Activates in case of high peak of
current in the inverter.
Fault in the inverter.
An overvoltage or a sudden
voltage drop occurred.
Current sensor for the motor
phases is damaged.
One of the motor phases is open. Check the connection from the
Pump motor output is too low.
Pump motor output is too high.
Inverter supply voltage is lower
than the batteries' one, or the
connection with the positive
terminal of the battery is not
correct.
One motor phase is not correctly
connected or is broken.
The relay remains closed with
power to the coil disconnected.
The inverter supplies power to
the relay coil, but the contact
does not close.
When the mos of EB is shorted.
Corrective Action
Control connections and
continuity of the electric motor. If
they are OK replace the inverter.
Replace the inverter.
Replace the inverter.
Usually it is a temporary anomaly
due to a working condition. In
case the anomaly persists replace
the inverter.
Usually it is a temporary anomaly
due to a working condition. In
case the anomaly persists replace
the inverter.
Replace the inverter.
Usually it is a temporary anomaly
due to a working condition. In
case the anomaly persists replace
the inverter.
Replace the inverter.
inverter to the motor.
Check the electric motor
connection.
Check the electric motor
connections.
Control the connection with the
positive terminal of the battery. If
the anomaly persists, replace the
inverter.
Control motor phases and motor
internal connections. If the
anomaly persists, replace the
inverter.
Control the relay.
Control the relay and the power
to the coil.
Check the battery feed.
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