EM12 User’s Manual
7. Fault Diagnosis and Solution
117
Fault Type
Display
Possible Causes
Solutions
Power output
phase loss
Err13
1: The cable connecting the frequency
inverter and the motor is faulty.
2: The frequency inverter's three-phase
outputs are unbalanced when the motor is
running.
3: The drive board is faulty.
4: The IGBT module is faulty.
1: Eliminate external faults.
2: Check whether the motor three phase
winding is normal.
3: Ask for technical support.
4: Ask for technical support.
IGBT Module
overheat
Err14
1: The ambient temperature is too high.
2: The air filter is blocked.
3: The fan is damaged.
4: The thermally sensitive resistor of the
IGBT module is damaged.
5: The inverter IGBT module is damaged.
1: Lower the ambient temperature.
2: Clean the air filter.
3: Replace the damaged fan.
4: Replace the damaged thermally
sensitive resistor.
5: Replace the inverter module.
External
equipment
fault
Err15
1: External fault signal is input via DI.
2: External fault signal is input via virtual
I/O.
1: Reset the operation.
2: Reset the operation.
Communicati
on fault
Err16
1: The host computer is in abnormal state.
2: The communication cable is faulty.
3: The communication extension card is
set improperly.
4: The communication parameters in
group bA are set improperly.
1: Check the cabling of host computer.
2: Check the communication cabling.
3: Set the communication extension card
correctly.
4: Set the communication parameters
properly.
Contactor
fault
Err17
1: The drive board and power supply are
faulty.
2: The contactor is faulty.
1: Replace the faulty drive board or
power supply board.
2: Replace the faulty contactor.
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
Frequency inverter 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.
Frequency
inverter
hardware fault
Err22
1: Overvoltage exists.
2: Over current exists.
1: Handle based on over voltage.
2: Handle based on over current.
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 parameter A0-09
Summary of Contents for EM12 Series
Page 5: ......
