LS ELECTRIC L7NHF Series, Руководство пользователя

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12. Maintenance and Inspection
12-2
12.1.2
What to Inspect
Wait at least 10 minutes after turning off the power before beginning the inspection because the
condenser can hold enough voltage to cause an electrical accident.
(1)
Servo Motor Inspection
Caution
Wait at least 10 minutes after turning off the power before beginning the inspection because the
condenser can hold enough voltage to cause an electrical accident.
Inspection
Items
Inspection Time Inspection and Handling Notes
Vibration and
sound check
Monthly
Touch the motor and listen to
sounds. The feel and sounds must be the
same as usual.
Exterior check
Depends on the
level of
contamination or
damage.
Clean the motor with a cloth or
air.
-
Insulation
resistance
measurement
At least once a year
Disconnect the motor from the
drive and measure insulation
resistance.
A normal resistance level is
10[
㏁
] or higher.
Note 1)
Contact our service center if
resistance is lower than 10[
㏁
].
Oil seal
replacement
At least once
every 5,000 hours
Remove the oil seal from the
motor and replace it. Only applies to motors with an oil
seal.
General
inspection
At least once every
20,000 hours or 5
years.
Contact our service center.
Do not disassemble the servo
motor by yourself for cleaning.
Note 4) Measure the resistance between PE and one of the U, V and W power cables in the servo motor.
(2)
Servo Drive Inspection
Inspection
Items
Inspection
Time
Inspection Method What to do for Abnormalities
Main body and
boards cleaning
At least once a
year
There must be no dust or oil. Clean it with air pressure or cloth.
Loose screws
At least once a
year
Check if terminal block or connector
tightening screws, etc. are not
loose.
Tighten the screws.
Defective parts
of the main
body or control
board
At least once a
year
Check for discoloration, damage or
disconnection caused by heat.
Contact our company.