# MCV_TorqueFreeStop

The “MCV_TorqueFreeStop” FB influences whether a drive stops when torque is applied after power to the drive is switched off by an instance of MC_Power or whether it coasts freely to a stop without application of torque.

Blockdiagramm

Parameters of the FB

VAR_IN_OUT
Variable name | Data type | Description
axis | AXIS_REF | Axis reference

VAR_INPUT
Variable name | Data type | Description
enable | BOOL | TRUE | When power is switched off, the drive coasts freely to a stop without torque application.
FALSE | When power is switched off, the drive stops when torque is applied.

VAR_OUTPUT
Variable name | Data type | Description
Enabled | BOOL | TRUE; coasting freely without torque application when power is switched off.
Error | BOOL | Indicates TRUE if an error occurs in the FB.
ErrorID | WORD | Error code.

Behaviour of the FB

- Currently, the FB is only available for SERCOS and KUKA drives.