The EFC 3600 variable frequency drive from Bosch Rexroth offers a solution for efficient process control application, improved through integrated controllers and an eight-step sequence control system. The freely-scalable EFC 3600 allows load-dependent adjustment of the voltage/frequency curve to improve motor service life, and settings enable efficient operation of equipment and machines at the optimal operating point. Other features include a compact design with pluggable I/O terminals, a lack of peripheral devices, high intermittent overload capacity, and 0.4 to 4 kW (0.5 to 5 hp) coverage. Simple program structure and parameter input provide quick start-up without a PC. The series offers energy-saving benefits for various applications and requirements including general automation, material handling, and pumps, fans, and compressors.