Periodic Inspection - Omron VARISPEED V7 User Manual

Periodic Inspection

Periodically inspect the Inverter as described in the following table to
prevent accidents and to ensure high performance with high reliability.
Location to
Check
Terminals, In-
verter mounting
screws, etc.
Heatsinks
Printed circuit
boards
Power elements
and smoothing
capacitor
Cooling fan
Check for
Improper seating or
loose connections in
hardware.
Buildup of dust, dirt, and
debris
Accumulation of conduc-
tive material or oil mist
Abnormal odor or discol-
oration
Abnormal noise or vibra-
tion
Cumulative operation
time exceeding 20,000
hours
7 Maintenance and Inspection
Solution
Properly seat and tighten
hardware.
Blow with dry compressed air
at a pressure of 39.2 × 10
4
58.8 × 10
Pa (4 to 6 kg/cm
Blow with dry compressed air
at a pressure of 39.2 × 10
4
58.8 × 10
Pa (4 to 6 kg/cm
If dust or oil cannot be re-
moved, replace the Inverter.
Replace the Inverter.
Replace the cooling fan.
4
to
2
).
4
to
2
).
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