Emheater EM12 Series, Руководство пользователя

Страница: 123 / 166

7. Fault Diagnosis and Solution EM12 User’s Manual
118
Fault Type Display Possible Causes Solutions
User-defined
fault 1
Err27
1: The signal of user-defined fault 1 is
input via DI.
2:The signal of user-defined fault 1 is
input via virtual I/O. 1: Reset the operation.
2: Reset the operation.
User-defined
fault 2
Err28
1: The signal of user-defined fault 2 is
input via DI.
2:The signal of user-defined fault 2 is
input via virtual I/O. 1: Reset the operation.
2: Reset the operation.
Accumulative
power-on time
reached
Err29
The accumulative power-on time reaches
the setting value.
Clear the record through parameter A0-09
Off load Err30
The frequency inverter running current is
lower than the setting value. Check that the load is disconnected or the
parameter setting is correct.
PID feedback
lost during
running
Err31
The PID feedback is lower than the
setting of C0-26. Check the PID feedback signal or set
C0-26 to a proper value.
By wave
current
limiting fault
Err40
1: The load is too heavy or locked- rotor
occurs on the motor.
2: The frequency inverter model is of too
small power class. 1: Reduce the load and check the motor
and mechanical condition.
2: Select a frequency inverter of higher
power class.
Motor
switchover
fault during
running
Err41
Change the selection of the motor via
terminal during running of the frequency
inverter.
Perform motor switchover after the
frequency inverter stops.
Too large
speed
deviation
Err42
1: The encoder parameters are set
incorrectly.
2: The motor auto-tuning is not
performed.
3: The detection parameters of too large
speed deviation are set incorrectly. 1: Set the encoder parameters properly.
2: Perform the motor auto-tuning.
3: Set the detection parameters correctly
based on the actual situation.
Motor
over-speed
Err43
1: The encoder parameters are set
incorrectly.
2: The motor auto-tuning is not
performed.
3: The over-speed detection parameters
are set incorrectly. 1: Set the encoder parameters properly.
2: Perform the motor auto-tuning.
3: Set the over-speed detection parameters
correctly based on the actual situation.
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
1: The motor parameters are not too
deviation based on the actual situation.
1: Check that the motor parameters are set
correctly and whether the setting of rated
current is too small.
7.2 Common Faults and Solutions
You may come across the following faults during the use of the frequency inverter. Refer to the following table for
simple fault analysis.
Table 8-2 Troubleshooting to common faults of the frequency inverter