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6 INSPECTION AND MAINTENANCE
6.4 Life
The following parts must be changed periodically as listed below.
However, if any part is found faulty, it must be changed immediately even when it has
not yet reached the end of its life, which depends on the operating method and
environmental conditions.
For parts replacement, please contact your sales representative.
Table 6.3 Life
Module name Part name Life guideline Remark
Motion CPU module Super capacitor
Motion module Electrolytic capacitor
10 years
Super capacitor
Synchronous
encoder
Bearings
2 to 3 years
Life guideline is reference time.
It must be changed immediately
even when it has not yet
reached the life guideline.
(1) The life of the capacitor greatly depends on ambient temperature and operating
conditions. The capacitor will reach the end of its in 10 years of continuous
operation in normal air-conditioned environment.
(2) Change the bearings in 20,000 to 30,000 hours as a guideline under rated speed.
This differs on the operating conditions, The bearings must also be changed if
unusual noise or vibration is found during inspection.
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