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Selecting the Reverse Rotation-prohibit Chapter 5-7

5-7 Selecting the Reverse Rotation-prohibit

This parameter is used to specify whether to enable or disable the reverse

rotation command sent to the Inverter from the control circuit terminals or

Digital Operator. The parameter should be set to “not accept” when the

Inverter is applied to systems that prohibit the reverse rotation of the Inverter.

Selecting the Reverse Rotation-prohibit (n05)

Set Values

5-8 Selecting the Interruption Mode

This parameter is used to specify the interruption mode when the STOP

command is input.

The Inverter either decelerates or coasts to a stop according to the

interruption mode selection.

Selecting the Interruption Mode (n04)

Set Values

Note 1. The Inverter will decelerate to stop according to the setting in n17 for

deceleration time 1 if any of the n36 through n39 parameters for multi-

function input is not set to 11 for acceleration/deceleration time selection.

If any one of the n36 through n39 multi-function input parameters is set to

acceleration/deceleration time selection, the Inverter will decelerate to

stop according to the selected setting of deceleration time when the STOP

command is input.

2. If the RUN signal is input again during a deceleration stop, deceleration will

be stopped at the point of the input and acceleration will proceed at that

frequency.

3. Do not input a RUN signal during a free-running stop if the motor’s rotation

speed is not sufficient slowed. If a RUN signal is input under these

conditions, a main circuit overvoltage (OV) or overcurrent (OC) will be

detected.

To restart a free-running motor, set a speed search command in one of the

multi-function inputs 1 to 4 (n36 to n39), use the speed search to detect the

speed of the free running motor, and then accelerate smoothly.

n05 Reverse Rotation-prohibit Selection Changes during

operation

Setting

range

0, 1 Unit of

setting

1 Default setting 0

Value Description

0 Accept

1 Not accept

n04 Interruption Mode Selection Changes during