73
Troubleshooting:
- Check the temperature read by the thermal sensor inside the motor
through the MOTOR TEMPERATURE reading in the TESTER function.
- Check the sensor ohmic value and the sensor wiring.
- If the sensor is OK, improve the cooling of the motor.
- If the warning is present when the motor is cool, replace the controller.
66
BATTERY
LOW
Cause:
The battery charge is evaluated to be lower than 10% of the full charge and
the BATTERY CHECK setting is other than 0 (refer to SET OPTION menu).
Troubleshooting:
- Check the battery charge and charge it if necessary.
- If the battery is actually charged, measure the battery voltage through a
voltmeter and compare it with the value in the BATTERY VOLTAGE reading
in the TESTER function. If they are different, adjust the ADJUST BATTERY
parameter with the value measured through the voltmeter.
- If the problem is not solved, replace the logic board.
74
DRIVER
SHORTED
Cause
The driver of the LC coil is shorted.
Troubleshooting
- Check if there is a short or a low impedance pull-down between NLC
and
–
BATT.
- The driver circuit is damaged; replace the logic board.
75
CONTACTOR
DRIVER
Cause
The LC coil driver is not able to drive the load. The device itself or its driver
circuit is damaged.
Troubleshooting
This type of fault is not related to external components; replace the logic
board.
78
VACC NOT OK
Cause:
At key-on and immediately after that, the travel demands have been turned
off. This alarm occurs if the ACCELERATOR reading (in TESTER function)
is more than 1 V above the minimum value acquired during the PROGRAM
VACC procedure.
Troubleshooting:
- Check the wirings.
- Check the mechanical calibration and the functionality of the accelerator
potentiometer.
- Acquire the maximum and minimum potentiometer value through the
PROGRAM VACC function.
- If the problem is not solved, replace the logic board.
79
INCORRECT
START
Cause:
Incorrect starting sequence. Possible reasons for this alarm are:
- A travel demand active at key-on.
- Man-presence sensor active at key on.
Summary of Contents for G3 Series
Page 1: ......
Page 4: ...1 I Main specifications of forklift trucks 1 External view of the truck P1 R G F C D ...
Page 29: ...26 Figure 4 1 Principle diagram of electric system CPD40 50 GB3Li ...
Page 30: ...27 Figure 4 2 Principle diagram of electric system CPD40 50 GB2Li ...
Page 109: ...106 5 Connect the battery 6 Close the side door ...
Page 110: ......
