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4-17
4-4
Periodic Maintenance
Caution
After replacing a Unit, always transfer all data required for operation before attempt-
ing to restart operation. Improper data settings may damage the product.
Caution
Do not disassemble or repair the product. Doing so may result in an electric shock
and injury.
Servo Motors and Drives contain many components and will operate properly only when
each of the individual components is operating properly. Some of the electrical and me-
chanical components require maintenance depending on application conditions. In or-
der to ensure proper long-term operation of Servo Motors and Drivers, periodic inspec-
tion and part replacement is required according to the life of the components.
The periodic maintenance cycle depends on the installation environment and application conditions of
the Servo Motor or Driver. Recommended maintenance times are listed below for Servo Motors and
Drivers. Use these are reference in determining actual maintenance schedules.
j
Servo Motors
•
Recommended Periodic Maintenance
Oil Seal:
2,000 hours
Bearings:
20,000 hours
Application Conditions:
Ambient motor operating temperature of 40
C, within allowable shaft load,
rated operation (rated torque and r/m), installed as described in operation
manual.
•
The radial loads during operation (rotation) on timing pulleys and other components contacting belts is
twice the still load. Consult with the belt and pulley manufacturers and adjust designs and system set-
tings so that the allowable shaft load is not exceeded even during operation. If a motor is used under a
shaft load exceeding the allowable limit, the motor shaft can break, the bearings can burn out, and
other problems can occur.
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Servo Driver and Regeneration Units
•
Recommended Periodic Maintenance
Aluminum analytical capacitors:
50,000 hours
Application Conditions:
Ambient driver (regeneration unit) operating temperature of 50
C, rated op-
eration (rated torque), installed as described in operation manual.
•
The life of aluminum analytical capacitors is greatly affected by the ambient operating temperature.
Generally speaking, an increase of 10
C in the ambient operating temperature will reduce capacitor
life by 50%. We recommend that ambient operating temperature be lowered and the power supply
time be reduced as much as possible to lengthen the maintenance times for Servo Drivers and Regen-
eration Units.
•
It is recommended that the Servo Driver and Regeneration Unit be inspected at five-year intervals if
they are used under conditions worse than the above or not used over a long time of time. Contact your
OMRON representative for inspection and the necessity of any component replacement.
Application
Chapter 4
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