AFNZPxxx– DUALACE2 NEW GENERATION – User Manual Page 145/169
motor internal connections (ohmic continuity);
motor power-cables connections;
if the motor connections are OK, the problem is inside the controller; replace it.
If the alarm occurs while the motor is running, check:
motor connections;
that the LC power contact closes properly, with a good contact;
if no problem is found, the problem is inside the controller. Replace it.
WAITING FOR NODE (MDI/LED code = 0)
Cause:
The controller receives from the CAN bus the message that another controller in
the net is in fault condition; as a consequence the controller itself cannot enter
into an operative status, but it has to wait until the other node comes out from the
fault status.
Troubleshooting:
Check if any other device on the CAN bus is in fault condition.
WARNING SLAVE (MDI/LED code = 1)
Cause:
Warning on supervisor uC.
Troubleshooting:
Connect the Console to the supervisor uC and check which alarm is present.
WATCHDOG (MDI/LED code = 8)
Cause
This is a safety related test. It is a self-diagnosis test that involves the logic
between master and supervisor microcontrollers.
Troubleshooting
This alarm could be caused by a CAN bus malfunctioning, which blinds
master-supervisor communication.
WRONG ENC SET (MDI/LED code = 83)
Cause
Mismatch between “ENCODER PULSES 1” parameter and “ENCODER PULSES
2” parameter (see paragraph 8.2.7).
Troubleshooting
Set the two parameters with the same value, according to the adopted encoder.
WRONG KEY VOLT. (MDI/LED code = 41)
Cause
The measured key voltage is not the right one for the inverter.
Troubleshooting
Check if the SET KEY VOLTAGE parameter in the ADJUSTMENTS list is set in
accordance with the key voltage.
Check if the key voltage is ok using a voltmeter, if not check the wiring.
In case the problem is not solved, replace the logic board.
WRONG RAM MEM. (MDI/LED code = 71)
Cause
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