# Dynamic optimised contouring with master axis

A feed master axis is used in this variant of the dynamically optimised contouring curve. This generally results in a more favourable velocity profile.

The feed master axis is identified in the axis parameter list by an entry in P-AXIS-00015 and marked as the only feed axis in the channel parameter list (P-CHAN-00011).

Further properties and limitations correspond to the dynamically optimised contouring mode.

Syntax of parameterisation:
#CONTOUR MODE [ DIST_MASTER [SYM_DIST=..] [ACC_MAX=..] [ACC_MIN=..] [RAMP_TIME=..] [DIST_WEIGHT=..] ]

DIST_MASTER | Dynamically optimised contouring with feed master axis
SYM_DIST=.. | Corner distance of pre-block and post-block (symmetrical) in [mm, inch *] after which a deviation from the original contour is allowed. Default value: 1 mm Monitoring off: -1 mm *when P-CHAN-00439 is active
ACC_MAX=.. | Percentage in [0%-100%] of maximum axis acceleration (machine data) which may be used by the contouring curve. Default value: 100%
ACC_MIN=.. | Percentage in [0%-100%] of maximum axis acceleration (machine data) which should be used by the contouring curve. If this specified corner distance (see SYM_DIST) is not maintained here, the acceleration is increased up to maximum value (ACC_MAX).

Default value: 50%

RAMP_TIME=.. | Percentage weighting of the ramp time in [0%-10000%]. Default value: 100%
DIST_WEIGHT=.. | Percentage weighting of corner distances relative to the pre-/post-block in [0%-100%]. Default value: 0%