Abstract

A routine maintenance and inspection of the driver and motor are essential for the proper and safe operation of the Panasonic A6 series motors in your injection automation system. Here in this chapter you'll have an overall idea of what's to do and not to do in the routine maintenance and inspection of the Panasonic A6 series motor and driver.

Panasonic A6 Servo & Motor Maintenance and Inspections

Routine maintenance and inspecdtion 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. When establishing a system using safety functions, completely understandand the applicable safety standards and the operating instruction manual or technical documents for the product.
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 measurement) to the driver, otherwise it could result in breakdown of the driver.
4. Do not use benzine, thinner, alcohol, acidic cleaner and alkaline cleaner because they can discolor or damage the exterior case.

Inspection Items and Cycles

General and normal running condition

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

Type	Cycles	Items to be Inspected
Daily Inspection	Cycle	Ambient temperature, humidity, speck, dust or foreign object Abnormal vibration and noise Main circuit voltage Odor Lint or other particles at air holes Cleanness at front portion of the driver and connector Damage of the cables Loose connection or misalignment between the motor and machine or equipment Pinching of foreign object at the load
Motor with Gear Reducer	Annual	Loose tightening Trace of overheat Damage to the terminal block Loose fasteners on terminal block

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

Guideline for Parts Replacement

Use the table below for a reference. Parts replacement cycle varies depending on the actual operating conditions. Defective parts should be replaced or repaired when any error have occurred.

Prohibited

Disassembling for inspection and repair should be carried out only by authorized dealers or service company.

Product	Component	Standard Replacement Cycles (Hour)	Note
Driver	Smoothing condenser	Approx. 5 years	These hours or cycles are reference. When you experience any error, replacement is required even before this standard replacement cycle.
	Cooling Fan	2 to 3 years (10000 to 30000 hours)
	Aluminum electrolytic capacitor (on PCB)	Approx. 5 years
	Rush current preventive relay	Approx.100000 times (depending on working condition)
	Rush current preventive resistor	Approx. 20000 times (depending on working condition)
Motor	Bearing	3 to 5 years (20000 to 30000 hours)
	Oil seal	5000 hours
	Encoder	3 to 5 years (20000 to 30000 hours)
	Battery for absolute encoder	Life time of battery read P7-14 please