Yaskawa Varispeed 626M5 - Manual (Page 204)

Maintenance and Inspection
13.1.3 Parts Replacement Schedule
13 -4
13.1.3 Parts Replacement Schedule
The Inverter and Converter are configured using multiple parts, and these parts perform their functions
as long as they are operating normally.
The electronic parts require maintenance depending on their operating conditions. To make sure that the
Inverter and Converter operate normally over a long period of time, periodic maintenance and parts re-
placement is required depending on the service life of the relevant part.
The parts replacement schedule differs depending on the installation environment and conditions of use
of the Inverter and Converter. The parts replacement schedule of the Inverter and Converter are shown in
the following table. Refer to the table for parts replacement and maintenance.
Table 13.2 Parts Replacement Schedule
Area Parts Interval (Approx.) Remarks
Cooling fan 2 to 3 years Replace with new one.
Smoothing capacitor 5 years
Replace with new one. (Decided after
inspection.)
Inverter and
Breakers or relays  Decided after inspection
Inverter and
Converter
Breakers or relays  Decided after inspection.
Converter
Fuse 10 years Replace with new one.
Aluminum electrolytic
capacitor on PCBs
5 years
Replace with new one. (Decided after
inspection.)
M
Bearings 12000 hours or 2 years Disassemble and replace worn items or provide
necessary maintenance.
Motor
Cooling fan 15000 hours or 2 years Replace the fan.
Overhaul 20000 hours or 5 years Contact your YASKAWA representative.
Note: Operating conditions are as follows:
S Ambient temperature: 30_C (86_F) yearly average
S Load factor: 80% or below
S Operating rate: 12 hours max. per day
13