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)
n05 Reverse Rotation-prohibit Selection No
Unit of setting
1
Changes during operation
Default setting 0 Setting range
Set Values
Value
0
1
0, 1
Accept
Not accept
Description
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)
n04 Interruption Mode Selection Changes during operation
Default setting 0
No
Setting range
Set Values
Value
0
1
0, 1 Unit of setting
1
Description
Frequency deceleration stop (See notes 1 and 2.)
Free running (See note 3.)
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 multifunction 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.
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