Mitsubishi Electric FR-A700 EC, Instruction Manual

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Parameter Misoperation prevention and parameter setting restriction
FR-A700 EC 6 - 411
6.21.3 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.
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 (FR-DU07), parameter unit (FR-PU04/FR-PU07), signals (STF, STR signals) via external
terminals, and the forward and reverse rotation commands through communication.
Pr.
No.
Name
Initial
Value
Setting
Range
Description Parameters referred to
Refer to
Section
78
Reverse rotation
prevention selection
0
0
Both forward and reverse rotations
allowed
—
1 Reverse rotation disabled
2 Forward rotation disallowed