
7-21
Items
Details
Checking
Period
Methods
Criteria
Remedies
Daily 1Year
Circuit Boards and Components
Printed
circuit
board
Check for damage to
PCBs.
Visual check
Correct component
condition
Clean or replace the
circuit board
Check for discolored,
overheated, or
burned parts.
Capacitor
Check for unusual
odor or leakage.
Replace capacitor or
AC Drive
Check for any
physical damage or
protrusion.
Power
component
Check for any dust or
debris.
Clean components
Check resistance
between each
terminal.
Measure with a
multi-meter
No short circuit or
faulty three-phase
output
Consult support
Peripheral Device
Potentio-
meter
Is the potentiometer
wiring or connector
damaged?
Visual check
No abnormalities
Replace potentiometer
Electro-
magnetic
Contactor
Check contacts and
connections for any
abnormality.
Replace Contactor
Unusual vibration and
noise?
Noise check
Reactor
Are there any
abnormalities?
Visual check
Replace Reactor
Cooling System
Cooling
fan
Unusual vibration
and noise?
Visual or sound
check
Correct cooling
Consult support
Excessive dust or
debris?
Visual check
Clean the fan
Heat sink
Excessive dust or
debris?
Clean debris or dust
Ventilation
Path
Is the ventilation path
blocked?
Clean vents