Mitsubishi Electric FR-A720-0.4K Instruction Manual page 471

Heatsink protrusion attachment
procedure
(2) Shift and removal of a rear side installation frame
• FR-A740-160K to 280K
One installation frame is attached to each of the upper and lower
parts of the inverter. Change the position of the rear side
installation frame on the upper and lower sides of the inverter to
the front side as shown on the right. When changing the
installation frames, make sure that the installation orientation is
correct.
• FR-A740-315K or higher
Two installation frames each are attached to the upper and lower
parts of the inverter. Remove the rear side installation frame on
the upper and lower sides of the inverter as shown on the right.
460
Shift
Upper
installation
frame
Lower
installation
Shift
frame
Removal
Upper installation
frame (rear side)
Lower installation
frame (rear side)
Removal