Maintenance And Inspections - Panasonic MINAS A5 Series Operating Instructions Manual

6. Maintenance and Inspections

Maintenance and Inspections
• 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. Never
make an approach to the motor and the machine(s) driven by the motor while pow-
er is applied because they may become failure or malfunction.
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 re-
sistance 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.
5) For energy-saving purpose, the upper fan of the H-frame driver is stopped while the
servo is OFF. This is not a fault.
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
• Ambient temperature, humidity, speck, dust or foreign object
• Abnormal vibration and noise
• Main circuit voltage
• Odor
Daily • Lint or other particles at air holes
Daily
inspection • 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
• Loose tightening
Periodical • Trace of overheat
Annual
• Damage to the terminal block
inspection
• Loose fasteners on terminal block
Inspection cycle may change when the running conditions of the
Note
above change.
Items to be inspected
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6. Maintenance and Inspections
Maintenance and Inspections
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.
Disassembling for inspection and repair should be
carried out only by authorized dealers or service
company.
Prohibited
Standard replacement
Product Component
Smoothing condenser
Cooling fan
(10,000 to 30,000 hours)
Aluminum electrolytic
capacitor (on PCB)
Driver
Approx. 100,000 times
Rush current
(depending on working
preventive relay
Approx. 20,000 times
Rush current
(depending on working
preventive resistor
Bearing
(20,000 to 30,000 hours)
Oil seal
Encoder
(20,000 to 30,000 hours)
Motor
Life time varies depending
on working conditions.
Battery Refer to the Operating
for absolute encoder Instructions attached to
the battery for absolute
encoder.
Note
cycles (hour)
Approx. 5 years
2 to 3 years
Approx. 5 years
condition)
These hours or cycles
are reference.
When you experience
condition)
any error, replacement
3 to 5 years
is required even before
this standard replace-
ment cycle.
5000 hours
3 to 5 years
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