PROFIdrive Application Class 1Published December 15, 2017 at dimensions 1163 × 387 in PROFIdrive Application Class 1. https://profinetuniversity.com/wp-content/uploads/2017/12/PD-Application-Class-1-1024x341.png An AC 1 PROFIdrive device handles all of the motor feedback and control locally – the PLC is only in charge of sending a speed setpoint and commanding the drive to run, stop, jog, or clear a fault.