Yaskawa Σ-II Series - Manual (Page 24)

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11 Inspection
This section describes the SERVOPACK basic inspections and part replacement period.
„ SERVOPACK Inspection
For inspections and maintenance of the SERVOPACK, follow the inspection procedures in
the table below at least once every year.
„ Part Replacement Period
The following parts are subject to mechanical wear or deterioration over time. To avoid fail-
ure, replace these parts at the frequency indicated.
If the SERVOPACK has been already overhauled at Yaskawa, its parameters will be set back
to standard settings at shipment. Always check parameters before operating the servomotor.
Item Frequency Procedure Remedy
Clean unit interior
and circuit boards At least once a year Check for dust, dirt, and oil on
surfaces. Clean with compressed
air or cloth.
Loose screws At least once a year Check for loose terminal block
and connector screws. Tighten any loose
screws.
Defective parts in
unit or on circuit
boards At least once a year Check for discoloration, damage
or discontinuities due to heating. Contact your
YASKAWA representa-
tive.
Parts Standard
Replacement
Period
Replacement Method Operating Conditions
Cooling fan 4 to 5 years Replace with new part. • Ambient temperature: annual
average 30 ° C
• Load factor: 80% max.
• Operation rate: 20 hours/day max.
Smoothing
Capacitor 7 to 8 years Test. Replace with new part if
necessary.
Relays − Test. Replace if necessary.
Fuse 10 years Replace with new part.
Electrolytic
Capacitor on
Circuit Board 5 years Test. Replace with new circuit
board if necessary.