Zapi COMBI AC0, Руководство пользователя

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AF6ZP0AL - COMBIAC0 & ACE0 - User Manual Page - 75/79
The EVP2 valve driver is not able to drive the load (cannot close).
Troubleshooting:
The device or its driving circuit is damaged, replace the controller.
26) “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.
27) “PUMP I=0 EVER”
Cause:
This test is carried out when the pump motor is running, and it verifies that
the current feedback sensor is not constantly stuck to 0.
Troubleshooting:
A) Check the motor connection, that there is continuity. If the motor
connection is opened, the current cannot flow, so the test fails and the
error code is displayed.
B) If everything is ok for what it concerns the motor, the problem could be in
the current sensor or in the related circuit.
28) “RAM WARNING”
Cause:
Checksum of the ram failed.
Troubleshooting:
This fault is not related to external components.
29) “EEP WARNING”
Cause:
Eeprom checksum failed
Troubleshooting:
Try to execute a CLEAR EEPROM operation (refer to Console manual).
Switch the key off and on to check the result. If the alarm occurs
permanently, it is necessary to replace the controller. If the alarm disappears,
the previously stored parameters will have been replaced by the default
parameters.
30) “LIFT + LOWER”
Cause:
This alarm occurs when both forks movement requests(Lift + Lower) are
active at the same time.
Troubleshooting:
Check the wiring of the Lift and lower inputs (use the readings in the
TESTER to facilitate the troubleshooting). Check the microswitches for
failures.
A failure in the logic is possible too. So, when you have verified the travel
demand switches are fine working and the wiring is right, it is necessary to
replace the controller.
31) “CONT. DRV. EV1”
Cause:
The EV1 valve driver is not able to drive the load (cannot close).
Troubleshooting: