Mitsubishi Electric FATEC FR-A800 Manual page 141

8
LIFE OF INVERTER PARTS
(3) Relays
To prevent a contact fault, relays must be replaced according to the cumulative number of
switching times (switching life).
The table below shows the replacement criteria of inverter parts. The other parts which have a
short life, such as lamps, must be replaced with new ones when performing the periodic
inspection.
Cooling fan
Main circuit smoothing capacitor
On-board smoothing capacitor
Relays

Estimated life for when the yearly average surrounding air temperature is 40°C.
(without corrosive gas, flammable gas, oil mist, dust and dirt etc.)

Output current: 80% of the inverter rating
8.1 Replacement of parts
136
Replacement of inverter parts (800 series inverters)
Part name Estimated life
10 years
10 years 
10 years 
—
Description
Replace (as required)
Replace (as required)
Replace the board (as required)
As required