56
6.6 Electrical System
6.6.1 Fault Codes
Error Message
Possible cause
Fault elimination
Error
Error text
162
BUMPER STOP
The two digital inputs dedicated to
the bumper functionality are high at
the same time.
- Turn off one or both inputs
dedicated to the bumper
functionality;
- If the alarm occurs even if the
inputs are in the rest position,
check if the micro-switches are
stuck.
- In case the problem is not solved,
replace the logic board.
176
HOME
SENS.ERR XX
The controller detected a difference
between the estimated absolute
orientation of the rotor and the
position of the index signal (ABI
encoder).
It is caused by a wrong acquisition
of the angle offset between the
orientation of the rotor and the index
signal.
Repeat the auto-teaching
procedure.
164
PWM ACQ.
ERROR
8
WATCHDOG
This is a safety related test. It is a
self-diagnosis test that involves the
logic between master and
supervisor micro-controllers.
This alarm could be caused by a
CAN bus malfunctioning, which
blinds master-supervisor
communication.
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