257
The rotation direction of motor is in
reverse
Adjust phase sequence of output terminal U, V, W
Set the running direction as reverse (F0.21=1)
Caused by phase loss of output. Check the motor wiring immediately.
7 Maintenance
7.1 Routine Maintenance
Many factors such as ambient temperature, humidity, smog, internal component aging will give rise to the occurrence of
potential faults. Therefore, it is necessary to conduct routine and periodic maintenance during storage or using of the
driver.
When the driver operates normally, please check if there are the following items:
1)
abnormal sound or vibration of the motor;
2)
abnormal heat producing from the driver or motor;
3)
high ambient temperature;
4)
whether the load current is as usual;
5)
whether the cooling fan of the driver runs normally.
7.2 Periodic Maintenance
To maintain a long-term normal operation, it is necessary to conduct periodic maintenance according to the working life
of internal electronic components. The working life varies with the operation condition. The following table is for
reference.
part
normal working life
