Maintenance And Inspections . B38 - Panasonic MHMD042P1C Technical Reference

6. 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.
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.
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
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
<Notes>
Inspection cycle may change when the running conditions of the above change.
Items to be inspected
– B38 –
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 ser-
vice 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 instruction
for absolute encoder manual attached to the
battery for absolute
encoder.
Motor with
Gear reducer
gear reducer
Note
cycles (hour)
Approx. 5 years
2 to 3 years
Approx. 5 years
condition)
These hours or cycles are
reference.
When you experience any
condition)
error, replacement is re-
3 to 5 years
quired even before this
standard replacement cy-
5000 hours
cle.
3 to 5 years
10,000 hours
– B39 –