AFCZP0BC – COMBIACX & ACEX - User Manual Page - 77/81
because the pump current is not zero.
Troubleshooting:
This type of fault is not related to external components; replace the controller.
20) “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.
21) “CONT. DRV. EV1”
Cause:
The EV1 valve driver is not able to drive the load (cannot close).
Troubleshooting:
The device or its driving circuit is damaged, replace the controller.
22) “CONT. DRV. EV2”
Cause:
The EV2 valve driver is not able to drive the load (cannot close).
Troubleshooting:
The device or its driving circuit is damaged, replace the controller.
23) “CONT. DRV. EV3”
Cause:
The EV3 valve driver is not able to drive the load (cannot close).
Troubleshooting:
The device or its driving circuit is damaged, replace the controller.
24) “PUMP VACC NOT OK”
Cause:
The minimum of the lift potentiometer is not correctly set.
Troubleshooting:
It is suggested to repeat a “PROGRAM VACC” procedure.
25) “SENS. MOT. TEMP. KO”
Cause:
A) The motor temperature sensor is not correctly connected to D3.
B) The motor temperature sensor is damaged.
Troubleshooting:
- Check the correct connection of the motor temperature sensor.
- If the current sensor is correctly connected, replace it.
- If the problem persist, it is due to the controller.
26) “VACC OUT RANGE”
Cause:
The voltage on CNC#4 is outside of the parameters’ range.
Troubleshooting:
Please re-acquire the VACC parameters with a PROGRAM VACC procedure.
27) “STALL ROTOR”
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