The EFC 3600 VFD is equipped with integrated PID controllers and a sequence control system with eight steps. The settings enable energy-efficient functioning of equipment and machines at their optimal operating point. It has an intermittent overload capacity of up to 200%, an initial torque of up to 150% and a freely scalable V/Hz characteristic that allows load-dependent adjustment of the voltage/frequency curve. The VFD can be connected to other automation topologies via optional Modbus or Profibus fieldbus interfaces or via digital and analog inputs and outputs.