Inspection items chart – GE Industrial Solutions AF-300C AC Drive User Manual
Page 90
INSPECTION ITEMS CHART
Item
Reason of
Corrective Action
Power Source
Wiihin permissible limits (323 506 VAC)
Adjust the power supply voltage
Voltage
for
VAC
Hz.
Ambient
Within permissible limits
to
C)
Investigate cause and make corrections
Temperature
to
until environment is within permissible limits
Ambient
Wiihin permissible limits (20 90% RH)
Investigate cause and make corrections
Humidity
No dew condensation or freezing
until environment is within permissible limits
Vibration
Within permissible limit
or less)
Investigate cause and make adjustments
until within permissible limits.
Noise
Odor
Abnormal Audio Noise from cooling
fan, etc.
Smell or burning
Contact the supplier where the inverter
was purchased.
Contact the supplier where the inverter
was purchased.
Dust
Screws/
Connectors*
Dust accumulation on cooling fins,
Clean and blow out with compressed air.
cooling fan, or on the control board.
(Follow appropriate safety precautions.)
Check for any loosening
Retighten as needed.
*Check internal screws/connectors only during periodic inspections or when cover is removed.
Inspections
Periodic Inspections
For daily inspections, it is not necessary to remove
the inverter cover. Check the inverter from the out-
side for any abnormal items per the above chart.
-- If anything is found, take corrective action as soon
as possible.
-- If the inverter is to be kept in operation before cor-
rections can be made, record details of the prob-
lem for future reference.
Periodic inspection intervals will vary per the inverter
application (bi-monthly, semi-annualy, annually, etc.).
Pick an interval that best suits the particular applica-
tion, but do not ignore the inspections entirely.
For periodic inspections, remove the inverter cover
and check the inverter for any abnormal items as per
the daily inspections, plus the following:
-- Check all internal screws/connections.
-- Check the DC Link capacitor for any leakage or
swelling.
-- Check relay contacts for roughness.
-- Check all wires and conductors for any deforma-
tion or heat damage/deterioration.
-- Check resistor insulation for cracks.
-- Verify output voltage of each phase.
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