Inovance MD280NT2.2GB - Page 162

MD280 User Manual Troubleshooting
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Current detection
fault
Err18
1. The HALL device is faulty.
2. The drive board is faulty.
1. Replace the faulty HALL
device.
2. Replace the faulty drive
board.
Motor auto-
tuning fault
Err19
1. The motor parameters are not
set according to the nameplate.
2. The motor auto-tuning times
out.
1. Set the motor parameters
according to the nameplate
properly.
2. Check the cable connecting
the AC drive and the motor.
EEPROM read-
write fault
Err21
1. The EEPROM chip is
damaged.
Replace the main control
board.
Short circuit to
ground
Err23
The motor is short circuited to the
ground.
Replace the cable or motor.
Accumulative
running time
reached
Err26
The accumulative running time
reaches the setting value.
Clear the record through
the parameter initialization
function.
Software
overcurrent
Err31 -
See the description of F5-25
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Fast current limit
timeout
Err40
1. The acceleration/deceleration
time is too short.
2. Manual torque boost or V/F
curve is not appropriate.
3. The startup operation is
performed on the rotating motor.
6. The load is too heavy.
2. Increase the acceleration/
deceleration time.
3. Adjust the manual torque
boost or V/F curve.
4. Use rotational speed
tracking startup or perform
startup after the motor stops.
5. Use an AC drive of a higher
power class.
Motor switchover
fault during
running
Err41
Motor switchover is performed
via terminal during running of the
AC drive.
Perform motor switchover after
the AC drive stops.
Motor overheat Err45
1. The cabling of the temperature
sensor becomes loose.
2. The motor temperature is too
high.
1. Check the temperature
sensor cabling and eliminate
the cabling fault.
2. Lower the carrier frequency
or adopt other heat radiation
measures.
Initial position
fault
Err51
The motor parameters are not
set based on the actual situation.
Check whether the motor
parameters are set correctly
and whether the setting of
rated current is too small.
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