Machine Protection
6-37
Limiting Motor Rotation Direction and Output Phase Rotation
If the motor reverse rotation is prohibited, a reverse run command will not be accepted, even if it is input. Use
this setting for applications in which reverse motor rotation can cause problems (e.g., fans, pumps, etc.)
It is also possible to change the output phase order by changing b1-04 to 2 or 3. This much easier and faster
than changing the wiring if the motor rotational direction is wrong.
Related Constants
Con-
stant
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Access
Level
b1-04 Prohibition of reverse operation
0: Reverse enabled
1: Reverse disabled
2: Output Phase Rotation
3: Output Phase Rotation, Reverse disabled
0 to 3 0 No A
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