HELI G3 Series, Руководство по эксплуатации и обслуживанию

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77
Troubleshooting:
- Check that LIFT and LOWER requests are not active at the same time.
- Check the LIFT and LOWER input states through the TESTER function.
- Check the wirings.
- Check if there are failures in the microswitches.
- If the problem is not solved, replace the logic board.
188
PUMP VACC
NOT OK
Cause:
The minimum of the lift potentiometer is not correctly set.
Troubleshooting:
It is suggested to repeat the acquiring procedure.
189
PUMP INC
START
Cause:
This is a warning for a pump incorrect starting sequence.
Troubleshooting:
The possible reasons for this alarm are:
o Pump request active at keyon.
o Pump request active without man presence.
- Check the wirings.
- Check the micro-switches.
- It could also be an error sequence made by the operator.
- A failure logic is possible too. When all of the above conditions were
checked and nothing was found, replace the controller.
190
PUMP VMN
NOT OK
Cause:
Before switching the LC on, the software checks the output voltage on
–
P
connector, and expects it to be at a
“
steady state
”
value (if DC PUMP
options is set to ON) If the voltage is too low, this alarm occurs.
Troubleshooting:
Please check
- The motor connected to
–
P must be completely still before this alarm
occurs. The software waits 30 seconds before showing this alarm. During this
time it shows the
“
WAIT MOTOR STILL
”
warning (see in the warnings
chapter)
- Motor internal connections
- Motor power cables connections
- Motor leakage to truck frame
- If the motor connections are ok, the problem is inside the controller it is
necessary to replace the logic board.
191
PUMP I NO
ZERO
Cause:
In standby condition (pump motor not driven), the feedback coming from the
current sensor in the pump chopper gives a value out of a permitted range,
because the pump current is not zero.
Troubleshooting:
This type of fault is not related to external components; replace the controller.
192
PUMP VACC
RANGE
Cause:
The voltage on A30 is outside of the parameters range.