Mitsubishi Electronics FR-S500 instruction manual Reverse rotation prevention selection Pr

Operation selection function parameters

2.10.8 Reverse rotation prevention selection (Pr. 78 )

This function can prevent reverse rotation faults resulting from the incorrect input of the start signal.

POINT

Used for a machine which runs only in one direction, e.g. fan, pump.

(The setting of this function is valid for the combined, PU, external and communication operations.)

Parameter	Name	Factory	Setting	Remarks
		Setting	Range
78	Reverse rotation	0	0, 1, 2	Setting is enabled when Pr. 30 = "1"
	prevention selection

<Setting>

Pr. 78 Setting Function

0Both forward and reverse rotations allowed

1Reverse rotation disallowed

2Forward rotation disallowed

2.10.9Operation mode selection (Pr. 79 )

Used to select the operation mode of the inverter.

The inverter can be run from the operation panel or parameter unit (PU operation), with external signals (external operation), or by combination of PU operation and external operation (external/PU combined operation).

The inverter is placed in the external operation mode at power on (factory setting).

Parameter	Name	Factory Setting	Setting Range
79	Operation mode selection	0	0 to 4, 7, 8

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FUNCTIONS

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