Panasonic A4P Series instruction manual Maintenance and Inspection, Inspection Items and Cycles

Maintenance and Inspection

• Routine maintenance and inspection of the driver and motor are essential for the proper and safe operation.

Notes on Maintenance and Inspection

1)Turn on and turn off should be done by operators or inspectors themselves.

2)Internal circuit of the driver is kept charged with high voltage for a while even after power-off. Turn off the power and allow 15 minutes or longer after LED display of the front panel has gone off, before performing maintenance and inspection.

3)Disconnect all of the connection to the driver when performing megger test (Insulation resistance mea- surement) to the driver, otherwise it could result in breakdown of the driver.

Inspection Items and Cycles

General and normal running condition

Ambient conditions : 30˚C (annual average), load factor of 80% or lower, operating hours of 20 hours or less per day.

Perform the daily and periodical inspection as per the items below.

Type	Cycles	Items to be inspected
	￿	• Ambient temperature, humidity, speck, dust or foreign object￿
	￿	• Abnormal vibration and noise￿
	￿	• Main circuit voltage￿
	￿	• Odor￿
Daily ￿	Daily￿	• Lint or other particles at air holes￿
inspection		• Cleanness at front portion of the driver and connecter￿
	￿
	￿	• Damage of the cables￿
	￿	• Loose connection or misalignment between the motor and ￿
	￿	machine or equipment ￿
	￿	• Pinching of foreign object at the load￿
		￿
	￿	• Loose tightening￿
Periodical ￿	￿
		• Trace of overheat￿
	Annual
inspection
		• Damage of the terminals

<Note> Inspection cycle may change when the running conditions of the above change.

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