Homing

Homing refers to an axis initialization run during which the correct actual position is determined by means of a reference signal. This procedure is referred to as homing, referencing or calibration. A switch that is triggered at a known, unique position along the travel path serves as reference signal. Further signals such as the encoder zero track can be analyzed in order to increase the precision.

In general a distinction is made between drive-controlled homing and NC-controlled homing. Drive-controlled homing is carried out automatically by a suitable drive without input from the control system and is not discussed in detail in this documentation. NC-controlled homing is fully controlled by the control system and supports a wide range of drive types. The different NC-controlled homing mechanisms are described below.