Delta Electronics AC Motor Drivers for the Elevator Door VFD-M-D

Basic check-up items to detect if there were any abnormalities during operation are:

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 operation.

5. Whether the motors are overheating during operation.

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

Ambient environment Check the ambient temperature, humidity, vibration and see if there are any dust, gas, oil or water drops

If there is any abnormal sound or vibration

Visual, aural inspection and turn the fan with hand (turn off the power before operation) to see if it rotates smoothly

If there is any color change due to overheat

If there is any abnormal sound or vibration

If any part is deformed or damaged

If there is any color change by overheating