Omron CIMR-J7AZ - QUICK - Periodical Inverter Inspection Schedule; Inverter Part Replacement Guidelines

Periodical Inspection
Periodically inspect the inverter as described the following table to prevent accidents and to ensure
high performance with high-reliability.
Part Replacement
Inverter’s maintenance periods are noted below. Keep them as reference.
Part Replacement Guidelines
Note: Usage conditions are as follows:
· Ambient temperature: Yearly average of 30°C
· Load factor: 80% max.
· Operating rate: 12 hours max. per day
Location to check Check for Solution
Terminals, unit mounting screws,
etc.
Connection hardware is properly
seated and securely tightened.
Properly seat and tighten
hardware.
Heatsink Built up durst, and debris
Blow with dry compressed air:
39.2 x 10
4
to 58.8 x 10
4
Pa,
57 to 85 psi (4 to 6kg / cm
2
)
pressure.
Printed circuit board
Accumulation of conductive
material or oil mist
Blow with dry compressed air:
39.2 x 10
4
to 58.8 x 10
4
Pa,
57 to 85 psi (4 to 6kg / cm
2
)
pressure
If dust or oil cannot be removed,
replace the inverter unit.
Power elements and
smoothing capacitor
Abnormal odor or discoloration Replace the inverter unit.
Cooling fan
Abnormal noise or vibration
Cumulative operation time
Replace the cooling fan.
Part Standard Replacement Period Replacement Method
Cooling fan 2 to 3 years Replace with new part.
Smoothing capacitor 5 years
Replace with new part.
(Determine need by inspection.)
Breaker relays – Determine need by inspection.
Fuses 10 years Replace with new part.
Aluminium capacitors on PCBs 5 years
Replace with new part.
(Determine need by inspection.)