The sensOstep™ encoder combines a hall sensor system with stepper motor. On the motor's rear shaft, there is a magnet, and on the PANdrive™ electronic board, the hall sensor IC provides absolute position value.
sensOstep™ provides a cost-effective solution for detecting step losses. The technology is based on a magnet that is applied to a modified stepper motor axis end, and hall sensor ICs with integrated signal processing.
The necessary sensor resolution used for a pure step loss detection is comparatively low (e.g. 1/16 of the stepper motor resolution). This reduces the cost and required accuracy or adjustment during assembly.
With compatible stepper motors, the magnet is mounted with a bolt spacer to the rear end of the motor axis. The hall sensor ICs use a serial interface such as SSI or BiSS. In contrast to conventional incremental encoder interfaces (e.g. a/b/n), these serial interfaces allow direct connection to available microprocessors, which further reduces the effort required to integrate sensOstep™ into existing products.