Panasonic VF200, Instruction Manual

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10. Maintenance and Inspection
12
4
10.4 Component Replacement
Wear-out faults are related to endurance period and service life. The
endurance period largely depends on the working conditions.
1. For example, service life of relay is determined by roughness of contact
surface.
Contact current and load inductance are major factors affecting its service
life.
2. The capacitor inside the inverter is used mainly as a smoothing filter. Due to
the chemical reaction that takes place internally, its service life is greatly
affected by the temperature. Generally speaking, rising of 10°C in
temperature reduces the service life of an aluminum electrolytic capacitor by
half, which also affects the service life of inverter.
When the inverter is used under high temperature, the aluminum electrolytic
capacitor may suffer from wear-out faults prior to other components in
normal status and must be replaced to extend the service life of inverter.
Component name
Standard
replacement
interval (year)
Method of replacement/Others
Cooling fan 5 years Replace with a new one.
Smoothing
capacitor
5 years
Investigate and replace with a
new one if necessary.
Relays -
Investigate and replace with a
new one if necessary.
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Contact us for replacing or repairing the components.