EP Equipment CPD30L1-B, Service Manual

Page: 144 / 235

REV. 05/2020
ELECTRICAL SYSTEM
9
132
9.12 Controller Error Message
Electrical faults are mainly caused by electrical
components failure or electrical circuit failure.
Wherein, when some components failures
which may not affect the ON/OFF of control
circuit occur, the instrument won't display fault
code (see Chapter 10 - Troubleshooting); while
the when the components failures which may
affect the ON/OFF of control circuit occur to
the electrical circuit, the controller will alarm for
error, and fault information will be displayed on
the instrument.
9.12.1 Controller For CPD30/35L1-B (ACE2 master_uc)
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.