Toshiba VF-A7 Speed limits in torque control mode, Setting with the control panel

6.21.3 Speed limits in torque control mode

 ：Forward speed limit input selection

 ：Forward speed limit input level

 ：Reverse speed limit input selection

 ：Reverse speed limit input level

 ：Speed limit (torque=0) reference

 ：Speed limit (torque=0) value

 ：Speed limit (torque=0) band

 ：Speed limit (torque=0) recovery time

・Function

The function is to limit the rise in the output frequency of the inverter due to a drop of the load torque during operation in torque control mode. These functions are usef ul for protecting a machine.

Torque command

Load torque

Forward speed limit level

Speed

Reverse speed limit level

Reference torque set by a potentiometer

Coast stop

The speed varies according with the load torque.

■Setting with the control panel

Forward speed limit input level 

Speed

	Coast stop
Reverse speed limit
input level 	The speed varies according with the load torque.

[Setting of forward speed limit level]

(Forward speed limit input selection) (Forward speed limit input level)

:(Parameter )

:Set a desirable torque limit level.

[Setting of reverse speed limit level]

(Reverse speed limit input selection) (Reverse speed limit input level)

:(Parameter )

:Set a desirable torque limit level.

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