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5 Troubleshooting
5
Fault Code Name Possible Causes Solution Level
Err21
Parameter
setting incorrect
Subcode 2: The
maximum frequency is
smaller than the motor
rated frequency.
Increase the value of F0-06 to larger than the
motor rated frequency.
5A
Subcode 3: The
encoder type is
incorrect.
Set the encoder type as UVW when a SIN/COS,
absolute or ABZ encoder is used. Check that
F1-00 is set according to the actual encoder
type.
Err22
Leveling signal
abnormal
Subcode 101: The
leveling signal is
stuck.
ā¢ Check whether the leveling and door zone
sensors work properly.
ā¢ Check whether the installation verticality
and depth of the leveling plates meet the
requirements.
ā¢ Check whether the leveling signal input
points of the MCB are normal.
1A
Subcode 102: The
leveling signal is lost.
Subcode 103: The
leveling position
deviation is too large
in elevator auto-
running state.
Check whether the steel rope slips.
Err23
Motor short-
circuit to ground
Subcodes 1, 2, 3:
Short circuit to ground
exists.
Check whether the three-phase output of the
AC drive is grounded.
5A
Subcode 4: Inter-
phase short-circuit
exists.
Check whether there is inter-phase short-circuit
in the three-phase output of the AC drive.
Err24
RTC clock fault
Subcode 101: The
RTC clock information
of the MCB is
abnormal.
ā¢ Replace the clock battery.
ā¢ Replace the MCB.
3B
Err25
Storage data
abnormal
Subcodes 101, 102,
103: The storage
data of the MCB is
abnormal.
Contact us or our agent directly. 4A
Err26
Earthquake
signal
Subcode 101: The
earthquake signal
is active and the
duration exceeds 2s.
Check that the earthquake signal is consistent
with the parameter setting (NC, NO) of the
MCB.
3B
Err27
Customized
model fault
- - -
Err28
Maintenance
fault
- - -
Err29
Shorting PMSM
stator contactor
feedback
abnormal
Subcode 101:
Shorting PMSM stator
contactor feedback to
the MCB is abnormal.
ā¢ Check that the signal feature (NO, NC) of the
feedback contact on the contactor is correct.
ā¢ Check that the contactor and corresponding
feedback contact act correctly.
ā¢ Check the coil circuit of the shorting PMSM
stator contactor.
5A
Subcode 102:
Shorting PMSM stator
contactor feedback
to the I/O extension
board is abnormal.
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