Daily Inspection - Mitsubishi Electric MELIPC MI5A1P User Manual

10
MAINTENANCE AND INSPECTION
This shows items that must be maintained or inspected daily or periodically to properly use the product in optimal condition at
all times.
• 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.
10.1

Daily Inspection

This section shows describes items that must be inspected daily.
Inspection Item
Product installation Loose
status
Check installation Loose
status of the power
module and fan
module
Connection status Terminal screw
loosening
Clearance between the
solderless terminals
Connector loosening
LED status POWER LED
VX RDY LED
WIN RDY LED
MAIN RUN LED
RUN LED
MAIN ERR LED
ERR LED
FAN LED
BATTERY LED
Dot matrix LED
Fan module Operating noise
10 MAINTENANCE AND INSPECTION
86
10.1 Daily Inspection
Inspection method
Check that mounting screws are
not loose.
• Check that each module is
securely mounted.
• Check that the fan module
fixing hook is fixed securely.
Tighten the terminal screw using a
screwdriver.
Check for the clearance between
the solderless terminals.
Check for the cable connector
looseness.
Check visually.
Confirm operating noise.
Judgment criteria
The screws and cover must be
fixed.
• Check that each module is
securely mounted.
• The fan module fixing hook
must be fixed.
The connector must not be loose.
The proper clearance must be
provided between solderless
terminals.
The connector must not be loose.
The LED must be on.
The LED must be off.
The on/off status of the dot-matrix
LED must be right.
No abnormal noise.
Corrective action
Retighten the screws in order to
prevent looseness.
Fix the module fixing hook
securely.
Retighten the terminal screws in
order to prevent looseness.
Provide the proper clearance.
Connect the connector securely
in order to ensure no looseness.
MELIPC MI5000 Series
User's Manual (Application)
Consult your local Mitsubishi
representative.
Replace the fan module. (
Page 171 Fan module
replacement)