# Suppressing reversal of speed at stop (P-AXIS-00548)

P-AXIS-00548 | Suppressing reversal of speed at stop
Description | When a spindle or single axis stops with a very slight jerk in deceleration phases, the direction of movement also changes when all boundary values are closely considered. In these cases, the control may increase the jerk in order to minimise the undesirable effect.
Parameter | kenngr.allow_dir_change_at_stop
Data type | BOOLEAN
Data range | 0: The jerk is also increased to prevent the axis from reversing. 1: No change in programmed jerk
Axis types | T, R, S
Dimension | T: ---- | R,S: ----
Default value | 0 *
Drive types | ----
Remarks | * The basic setting is recommended for positioning software limit switches.