Periodic Inspection - Mitsubishi Electric MELIPC MI5A1P User Manual

10.2

Periodic Inspection

This section describes items that must be inspected 1 to 2 times every 6 to 12 months.
Inspect when the equipment has been relocated or modified, or wiring layout has been changed.
• In order to prevent problems such as short circuits or bad insulation as a result of issues relating to service
life or deterioration, ensure that the power supply is turned OFF when the product is not being operated for
a long period of time.
• From the perspective of preventive maintenance, regular replacement of parts with a finite service life is
recommended. If an ambient temperature is 40, a guideline is to replace the power supply module every
5 years, and the fan module every 5 to 10 years.
Inspection Item
*1
Environment Ambient temperature
Ambient humidity
Atmosphere
Power supply voltage check
Installation Looseness and rattling
Attachment of dirt and foreign
matter
Connection Terminal screw loosening
status
Clearance between the
solderless terminals
Bends or damage to the
solderless terminal
Connector loosening
Ground terminal Attachment of dirt and foreign
matter
Bends or damage to the
solderless terminal
Battery
*2

Fan module
Filter clogging or soiling
*1 Environment within the control panel in which the product is installed.
*2 After a fan module was cleaned or replaced, always execute [Alert reset]. If it is not executed, the FAN LED does not turn on. (Even if
the power supply of this product is turned off, the FAN LED turns on the next time the power supply is turned on. )(Page 140 Menu
Operation Switch)
Inspection method Judgment criteria
Measure temperature with a 0 to 55
thermometer.
Measure humidity with a 5 to 95%RH
hygrometer.
Measure corrosive gases. No corrosive gases.
Measure voltage between 100 to 85 to 264 VAC
240 VAC terminals.
Touch the module to check for The module must be mounted
the looseness and rattling. securely.
Check visually. Dirt and foreign matter must not
be attached.
Tighten using a screwdriver. The connector must not be
loose.
Check visually. The proper clearance must be
provided between solderless
terminals.
Check visually. No bends or damage.
Check visually. The connector must not be
loose.
Check visually. Dirt and foreign matter must not
be attached.
Check visually. No bends or damage.
Check BATTERY LED. The LED must be off.
Check the length of time after The battery must not be used
purchase of the battery. more than five years.
Check FAN LED. The LED must be off.
Check the period of time since This must be no more than 10
the manufacture of the fan years.
module.
Check visually. No clogging or soiling of the
filter.
Corrective action
Create the environment that
satisfies the judgment criteria.
Change the supply power.
• Retighten screws in order to
prevent looseness.
• If the module is loose, fix with
screws.
Remove and clean.
Retighten screws in order to
prevent looseness.
Provide the proper clearance.
• If it is bent, correct it.
• If there is any damage, replace.
Connect the connector securely in
order to ensure no looseness.
Remove and clean.
• If it is bent, correct it.
• If there is any damage, replace.
If the LED is on, replace the battery.
Replace the battery if it has been
used more than 5 years.
• If the FAN LED is on, then clean
the fan module. ( Page 88
Fan module inspection and
cleaning)
• If this is lit, replace the fan
module. ( Page 171 Fan
module replacement)
If 10 years or more have passed,
then replace the fan module. (
Page 171 Fan module
replacement)
Clean the filter. ( Page 88 Fan
module inspection and cleaning)
10 MAINTENANCE AND INSPECTION
10.2 Periodic Inspection
10
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