Maintenance and Inspection
8-11
400 V Class Inverters of 110 kW and 132 kW
Removing the Cooling Fan
1. Remove the terminal cover, Inverter cover, Digital Operator, and front cover from the front of the Inverter.
2. Remove any cables that are connected to the cooling fan power relay board. The cable that is connected to
the terminal board can be removed together with the terminal board.
3. Remove the fan cover screws and pull out the fan cover from the Inverter.
4. Remove the cooling fan from the fan cover and replace it with a new one.
Mounting the Cooling Fan
After attaching a new cooling fan, reverse the above procedure to attach all of the components.
When attaching the cooling fan to the mounting bracket, be sure that the airflow faces the top of the Inverter.
Fig 8.6 Cooling Fan Replacement (400 V Class Inverters of 110 kW)
Front cover mounting screws
Front cover
Terminal cover
Terminal cover mounting screws
Cooling fan power relay board
Fan cover mounting screws
Circulation fan
Circulation fan
power connector
Circulation fan
Airflow direction
Circulation fan
mounting screws
Cooling fan mounting screws
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