Yaskawa SGDB - Manual (Page 510)

6.1 Inspection and Maintenance
501
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
At least
once a year
Check for dust, dirt, and oil on
the surfaces.
Clean with
compressed air.
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
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
Cooling fan 4 to 5 years Replace with new part.
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.
Aluminum Electrolytic
Capacitor on Circuit Board
5 years Test. Replace with new circuit board if
necessary.
Note Operating Conditions:
• Ambient Temperature: annual average 30°C
• Load Factor: 80% max.
• Operation Rate: 20 hours/day max.
If the SERVOPACK has been already overhauled at YASKAWA, its parameters are set back
to the standard settings on shipment. Always check the parameters before operating the mo-
tor.
6