Inovance MD330H - Page 292

MD380 User Manual Maintenance and Troubleshooting
- 291 -
Fault Name Display Possible Causes Solutions
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.
Encoder fault Err20
1: The encoder type is incorrect.
2: The cable connection of the
encoder is incorrect.
3: The encoder is damaged.
4: The PG card is faulty.
1: Set the encoder type
correctly based on the actual
situation.
2: Eliminate external faults.
3: Replace the damaged
encoder.
4: Replace the faulty PG
card.
EEPROM read-
write fault
Err21 The EEPROM chip is damaged.
Replace the main control
board.
AC drive
hardware fault
Err22
1: Overvoltage exists.
2: Overcurrent exists.
1: Handle based on
overvoltage.
2: Handle based on
overcurrent.
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.
User-dened
fault 1
Err27
1: The user-dened fault 1 signal
is input via DI.
2: User-dened fault 1 signal is
input via virtual I/O.
Reset the operation.
User-dened
fault 2
Err28
1: The user-dened fault 2 signal
is input via DI.
2: The user-dened fault 2 signal
is input via virtual I/O.
Reset the operation.
Accumulative
power-on time
reached
Err29
The accumulative power-on time
reaches the setting value.
Clear the record through
the parameter initialization
function.
Load becoming 0
Err30
The AC drive running current is
lower than F9-64.
Check that the load is
disconnected or the setting of
F9-64 and F9-65 is correct.
PID feedback lost
during running
Err31
The PID feedback is lower than
the setting of FA-26.
Check the PID feedback
signal or set FA-26 to a
proper value.