Omron SYSDRIVE RV Series User Manual page 455

200 V and 400 V Class Inverters of 22 kW or More
A cooling fan is attached to the top panel inside the Inverter.
The cooling fan can be replaced without removing the Inverter from the installation panel.
200 V Class Inverters of 22 kW, 30kW and 400 V Class Inverters of 22 kW to 55 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 the control board bracket to which the boards are mounted. Remove all cables connected to the
control board. The cables connected to the control circuit terminals can be removed at the same time by
removing them together with the control circuit terminal board. This procedure is not required for 400 V
Class Inverters of 37 kW, 45 kW, and 55 kW. (Refer to page 8-20.)
3. Remove the cooling fan power cable connector (CN26 and CN27) from the gate drive board positioned at
the back of the controller.
4. Remove the fan cover screws and pull out the fan cover from the Inverter.
5. 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. Refer to the
next page for attaching the fan cover.
When attaching the cooling fan to the mounting bracket, be sure that the airflow faces the top of the Inverter.
-6
8
Control board bracket
Control
board
Gate drive board
Fig 8.2 Cooling Fan Replacement (200 V Class Inverters of 22 kW)
Air flow direction
Fan cover
Connector