Routine And Periodic Checks - IMO iDrive Instruction Manual

5.4 Routine periodic checks
To ensure stable and safe operation, check and maintain the inverter regularly.
The table below lists the items requiring checking to ensure safe operation.
Check these items 5 minutes after the "Charge" indicator goes out to prevent service persons from
being hurt by residual electric power.
Items
Confirm the temperature
and humidity around the
machine
Circumstances
around the
machine
Are there inflammable
materials in proximity?
Any unusual vibration from
the machine
Installation and
grounding of
Is the grounding resistance
the inverter
/ earth-loop impedance
correct?
Input power Is the voltage of the main
voltage circuit correct?
External Are secure parts loose?
terminals and
Is the terminal base
internal
damaged?
mounting
screws of the
Obvious corrosion?
inverter
Trapped or over-heated?
Internal wiring
of the inverter Any damage of to the
insulation?
Heat sink Build-up of dust deposits
Build-up of conductive
metal or oil sludge
Printed circuit
board
Discolored, overheated, or
burned parts
Check if operating ok or
unusual vibration and noise
Cooling fan
Build-up of dust deposits
Build-up of dust deposits
Power
Check circuit
component
terminals
Any unusual odor or
leakage of electrolyte
DC Link
Any splits / swelling to case
Capacitor(s)
or end caps?
High temperatures?
Checking
Details
period
Week Year
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between
Chapter 5 Trouble shooting and maintenance
Methods
Measure with
thermometer and
hygrometer
according to
installation notices.
Visual check
Visual, hearing
Measure the
resistance
○
Measure the
voltage with a
○
multi-meter
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Visual check
Check with a
○
screwdriver
(Make sure power
is OFF first)
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Visual check
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Visual check
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Visual check
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Visual or hearing
check
Visual check
Visual check
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Measure with a
multi-tester (diode
○
checker)
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Visual check
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5-13
Criteria
Temperature: -10 –
o
50 C
Humidity: Below 95%
RH
No foreign matters
No foreign matters Secure screws
According to national
Improve the
regulations
grounding path
Voltage must conform Improve power
with the specifications supply
No abnormalities or Secure or send back
cross-threading for repair
No abnormalities Inform your supplier
No abnormalities Clean away dust
Clean up or replace
No abnormalities
the circuit board
Replace the cooling
Clean, quiet,
fan
operating OK
Clean
No abnormalities Clean up
No short circuit or Replace power
damage to input component or
/output circuits inverter
Replace capacitor or
inverter
No abnormalities
Remedies