Introduction

Depending on the drive type used, drive functionality is generally addressed in different ways.

In the case of SERCOS drives, changeover of a driver's parameter set is realised via the parameters S-0-216 and S-0-217, for example. In the case of Profidrive drives, the parameter set is changed over by control bits in STW1 in the cyclically transferred setpoint telegram.

Setting the torque limit is a further example:

In the case of SERCOS drives, on the one hand the torque limit can be set by writing the parameter S-0-0092 through the service channel or, on the other hand, S-0-0092 can also be parameterised in the cyclic telegram.

In the case of PROFIDRIVE drives, the torque limit is modified via the manufacturer's specific telegram element MomRed (signal number 50101 in the case of SIEMENS 611u) and the percentage by which the torque limit is to be reduced is specified i the telegram element (MomRed = 30 -> reduction by 30 % to 70 %).

The NC command #DRIVE was implemented to provide the user with a possibility, independent of the drive type, of controlling drive functionality.

By means of this command, users can address identical functionality of differing drive types in the NC program in a manner that is independent of the drive type.

The CNC kernel is configured accordingly to adjust to the relevant drive type.

This functionality is currently supported for the SERCOS and Profidrive drive types only.