Reverse Rotation Prevention Selection (Pr. 78) - Mitsubishi Electric FR-E700 Series Instruction Manual

Parameter
6.17.3

Reverse rotation prevention selection (Pr. 78)

In some applications (fans, pumps) it is necessary to ensure that the motor cannot be reversed. This
can be achieved with Pr. 78.
Pr. No. Name
Reverse rotation prevention
78
selection
The above parameter can be set when Pr. 160 "User group read selection" = 0.
Set this parameter when you want to limit the motor rotation to only one direction.
This parameter is valid for all of the reverse rotation and forward rotation keys of the operation panel
and parameter unit (FR-PU04/FR-PU07), the start signals (STF, STR signals) via external terminals, and
the forward and reverse rotation commands through communication.
FR-E700SC EC
Setting
Initial Value Description
Range
0 Both forward and reverse rotations allowed
1 Reverse rotation disabled
0
2 Forward rotation disallowed
Misoperation prevention and parameter setting restriction
Refer to
Parameters referred to
Section
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