The APS Advanced Power Steering System is designed to be a quiet, reliable, low maintenance brushless system that consists of a permanent magnet AC motor with integrated speed reducer and an AC drive with I/O interface. It features a CANOpen interface for seamless integration and communication, and covers a wide variety of vehicle applications including Class 1, 2, and 3 lift trucks. The APS offers an I/O interface that facilitates the direct connection of most steering sensors, while a stand-alone mode allows direct connection of most steering encoders. The APS offers a range of safety capabilities that facilitate reliable EN 954-1 Category 3 or Category 4 operation. An integrated safety system, via the CAN bus, can directly activate an emergency brake to bring the truck to a controlled stop. Additionally, the APS continually reports its status to the vehicle controller. System software is customizable through application programming or an extensive parameter set. It allows users to benefit from features such as automatic centering, steering proportional to speed, an adjustable steering sensitivity ratio, high maneuverability and extensive diagnostic support.