7 Troubleshooting
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275
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Fault
Code
Name Possible Causes Solution Level
Err21
Parameters are
incorrectly set.
Subcode 2: The set value of
the maximum frequency is
smaller than the rated motor
frequency.
◆
Increase the value of F0-06 so that it is great-
er than the rated motor frequency.
5A
Subcode 3: The encoder type
is incorrectly set.
◆
The SIN/COS, absolute or ABZ encoder is
incorrectly set to the UVW encoder. Test
whether the set value of F1-00 is matched
with the encoder.
Err22
Leveling signal
abnormal
Subcode 101: The leveling
signal is stuck.
◆
Check whether the leveling and door zone
switches work properly.
◆
Check the installation verticality and depth
of the leveling plates.
◆
Check the leveling signal input points of the
MCB.
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 Short circuit
Subcodes 1, 2, 3: Short circuit
to ground exists.
◆
Check whether the three-phase output of
the AC drive is short circuited to ground.
5A
Subcode 4: Inter-phase short
circuit exists.
◆
Check whether the three-phase output
of the AC drive is short circuited between
phases or to ground.
Err24
RTC clock
fault
Subcode 101: The RTC clock
information of the MCB is
abnormal.
◆
Replace the clock battery.
◆
Replace the MCB.
3B
Err25
Storage data
abnormal
Subcodes 101, 102, 103: The
storage data of the MCB is
abnormal.
◆
Contact the agent or the manufacturer. 4A
Err26
Earthquake
signal
Subcode 101: The earthquake
signal is active and the
duration exceeds 2s.
◆
Subcode 101: Check that the earthquake sig-
nal is consistent with the parameter setting
(NC, NO) of the MCB.
3B
Err27
Fault of special
controller
Reserved
◆
Contact the agent or Inovance. -
Err28
Maintenance
fault
Reserved
◆
Contact the agent or Inovance. -
Err29
Shorting motor
stator contactor
feedback
abnormal
Subcode 101: Feedback of
the shorting motor stator
contactor of the MCB is
abnormal.
◆
Check that the signal feature (NO, NC) of the
feedback contact on the contactor is correct.
◆
Check that the contactor and corresponding
feedback contact act correctly.
◆
Check the coil circuit of the shorting motor
stator contactor.
5A
Subcode 102: Feedback of
the shorting PMSM stator
contactor of the IO expansion
board is abnormal.
Err30
Elevator position
abnormal
Subcodes 101, 102: In the
normal-speed running or re-
leveling running mode, the
running time is larger than the
value of F9-02, but the leveling
signal has no change.
◆
Check whether the leveling signal cables are
connected reliably and whether the signal
copper wires may touch the ground or be
short circuited with other signal cables.
◆
Check whether the distance between two
set in F3-21 is too short, causing over long
re-leveling running time.
4A
Err31 Reserved Reserved
◆
Reserved -
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