- 185 -
Fault
Code
Name Possible Causes Solution Level
Err36
RUN contactor
feedback
abnormal
101: The feedback of the
RUN contactor is active, but
the contactor has no output.
102: The controller outputs
the RUN signal but receives
no RUN feedback.
103: The startup current of
the asynchronous motor is
too small.
104: When both feedback
signals of the RUN
contactor are enabled, their
states are inconsistent.
101, 102, 104:
•
Check whether the feedback
contact of the contactor acts
properly.
•
Check the signal feature (NO,
NC) of the feedback contact.
103:
•
Check whether the output
cables UVW of the controller
are connected properly.
•
Check whether the control
circuit of the RUN contactor
coil is normal.
5A
Err37
Brake
contactor
feedback
abnormal
101: The output of the brake
contactor is inconsistent
with the feedback.
102: When both feedback
signals of the brake
contactor are enabled, their
states are inconsistent.
103: The output of the brake
contactor is inconsistent
with the feedback 2.
104: When both feedback
2 signals of the brake
contactor are enabled, their
states are inconsistent.
101 to 104:
•
Check whether the brake coil
and feedback contact are
correct.
•
Check the signal feature (NO,
NC) of the feedback contact.
•
Check whether the control
circuit of the brake contactor
coil is normal.
5A
Err38
Encoder signal
abnormal
101: Pulse signal change
in F4-03 does not change
within the time threshold in
of F1-13.
102: The running direction
and pulse direction are
inconsistent.
101, 102:
•
Check whether the encoder is
used correctly.
•
Exchange phases A and B of
the encoder.
•
Check whether the system and
signal cables are grounded
reliably.
•
Check whether cabling
between the encoder and the
PG card is correct.
5A
Err39 Motor overheat
101: The motor overheat
relay input remains valid for
a certain time.
101:
•
Check whether the thermal
protection relay is normal.
•
Check whether the motor is
used properly and whether it is
damaged.
•
Improve cooling conditions of
the motor.
3A
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