Yaskawa DR2 Sigma Servo - Manual (Page 401)

6.1 Inspection and Maintenance
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6.1.2 Servopack
For inspection and maintenance of the Servopack, follow the inspection procedures in the
table below at least once every year.
The Servopack contains highly reliable parts and daily inspection is not required. Carry out
the inspections and maintenance in the table below once every year.
Item Frequency Procedure Remedy
Clean unit interior and
circuit boards
Yearly Check for dust, dirt, and oil on
the surfaces.
Clean with
compressed air.
Loose screws Yearly Check for loose terminal block
and connector screws.
Tighten any loose
screws.
Defective parts in unit
or on circuit boards.
Yearly Check for discoloration, damage
or discontinuities due to heating.
Contact your Yaskawa
representative.
Part Replacement Schedule
The following parts are subject to mechanical wear or deterioration over time. To avoid failure,
replace these parts at the frequency indicated.
Part Standard
Replacement Period
Replacement Method
Smoothing Capacitor 7 to 8 years Replace with new part.
Relays --- Replace with new parts.
Fuse 10 years Replace with new part.
Aluminum Electrolytic
Capacitor on Circuit Board
5 years Replace with new circuit board.
Note Operating Conditions:
• Ambient Temperature: annual average 30°C
• Load Factor: 80% max.
• Operation Rate: 20 hours/day max.
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