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

Misoperation prevention and parameter setting restriction
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.
Name
No.
Reverse rotation
78
prevention 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.
6 - 194
Initial Setting
Description
Value Range
Both forward and reverse rotations
0
allowed
0
1 Reverse rotation disabled
2 Forward rotation disallowed
Parameter
Refer to
Parameters referred to
Section
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