User manual

Chapter 6 Maintenance and Inspections

Modern AC drives are based on solid state electronics technology, preventive

maintenance is required to operate this AC drive in its optimal condition, and to

ensure a long life. It is recommended to perform a monthly check up of the AC

drive by a qualified technician. Before the check up, always turn off the AC Input

Power to the unit. Wait at least 2 minutes after all display lamps have gone out,

and then confirm that the capacitors have fully discharged.

CH 6-1 Periodic Inspection:

Basic check up items to detect if there were any abnormality during the

operation.

1. Whether the motors are operating as expected.

2. Whether the installation environment is abnormal.

3. Whether the cooling system is operating as expected.

4. Whether any irregular vibration or sound occurred during the operation.

5. Whether the motors are overheated during the operation.

6. Always check the input voltage of the AC drive with Voltmeter.

CH 6-2 Periodic Maintenance

It is necessary to stop the motor operation during the check up.

1. Tighten and reinforce the screws of the AC drive if necessary, cause it may

loose due to the vibration or changing of temperatures.

2. Whether the conductors or insulators were corroded and damaged.