User Manual

TMCM-1180 and PD86-1180 Hardware Manual (V1.01 / 2011-MAR-21) 23
Copyright © 2011, TRINAMIC Motion Control GmbH & Co. KG
7.1.5 sensOstep™ encoder
The sensOstep™ encoder used in this unit is based on a magnetic angular position encoder system with
low resolution. It consists of a small magnet positioned at the back end of a stepper motor axis and a Hall-
sensor IC with integrated digital signal processing (e.g. for automatic gain control, temperature
compensation etc.) placed above the magnet on the back side of a motor mounted printed circuit board.
The encoder offers a resolutions of 8 bit (256 steps) per revolution which is completely sufficient for
detecting step losses with a standard 1.8° stepper motors.