# Preferred direction of axis for homing (P-AXIS-00158)

P-AXIS-00158 | Preferred direction of axis for homing
Description | The parameter P-AXIS-00158 specifies the direction of travel if the axis does not remain on a cam. The declaration of the signal level when the reference switch is actuated is given by the axis parameter P-AXIS-00038.
Parameter | kenngr.ref_richt
Data type | BOOLEAN
Data range | 0: Negative direction 1: Positive direction
Axis types | T, R, S
Dimension | T: ---- | R,S: ----
Default value | 0
drive types. | Simulation, Conventional, Terminal, Lightbus, Profidrive
Remarks | Positive direction signifies that the coordinate values increase. Negative direction signifies that the coordinate values decrease.