Mitsubishi FR-A740-00023-EC, Instruction Manual

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418
Inspection item
(2) Replacement procedure of the cooling fan when using a heatsink protrusion attachment
(FR-A7CN)
•
Removal (04320 or more)
1) Remove a fan cover.
2) After removing a fan connector, remove a fan block.
3) Remove the fan.
* The number of cooling fans differs according to the inverter capacity. ( refer to page 416 .)
•
Reinstallation (04320 or more)
1) After confirming the orientation of the fan, reinstall the fan so that the arrow on the left of "AIR FLOW" faces up.
<Fan side face>
2) Install fans referring to the above figure.
When replacing a cooling fan, remove a top cover of the
heatsink protrusion attachment and perform replacement.
After replacing the cooling fan, replace the top cover in the
original position.
Fan *
Fan connection
connector
1)
2)
3)
AIR FLOW
CAUTION
•
Installing the fan in the opposite air flow direction can cause the inverter life to be shorter.
•
Prevent the cable from being caught when installing a fan.
•
Switch the power off before replacing fans. Since the inverter circuits are charged with voltage even after power off,
replace fans only when the inverter cover is on the inverter to prevent an electric shock accident.
Top cover