Channel parameters

P-CHAN-00002	Path acceleration limit
Description	If no change is made to the parameter values by NC programming, this value limits path acceleration after it is activated in the NC program.
Parameter	vector.acceleration
Data type	REAL64
Data range	0 ... Maximum acceleration, application-specific
Dimension	mm/min² or mm/s² *
Default value	100000000
Remarks	* The dimension used depends on P-CHAN-00351. Parameterisation example: vector.acceleration 1800000 The specified default value is in mm/min².

P-CHAN-00009	Reduction of tangential transition velocity between circles
Description	Tangential block transitions between circles with different radii and circles and linear blocks and vice versa lead to a jerk depending on circle radius. A jerk produced by activating this function can be reduced in order to reduce the excitation of vibrations on the machine when non-linear velocity profiles are active. At tangential block transitions, the speed is reduced dependent on the permissible jerk. The calculation is based on axis-specific jerk parameters for non-linear speed profiles (see also [AXIS] documentation). On the other hand, the reduction of speed at tangential block transitions is not acceptable with specific machining technologies since the machining process has a very sensitive reaction to a reduction in velocity.
Parameter	corr_v_trans_jerk
Data type	BOOLEAN
Data range	0: No inclusion of jerk at tangential block transitions. 1: Inclusion of jerk at tangential block transitions.
Dimension	----
Default value	0
Remarks

P-CHAN-00066	Influence of override on feed
Description	This parameter defines how feed is calculated in conjunction with path feed override. This means, for example, the parameter sets whether the override bandwidth is applied to the programmed feed or to the minimum programmed feed and the maximum permissible feed in the block (v_max). The CNC calculates the feed based on the permissible axis dynamics. The following velocities have an influence: v_max: Calculated maximum velocity of the CNC with no consideration given to reduced velocity v_red: Calculated reduced velocity of the CNC, taken from vb_max_red (P-AXIS-00214) of the axes v_prog: programmed velocity of the operator (F word) Value 0 for P-CHAN-00066: v = MIN (v_prog,v_max) * Override If this parameter is set to 0, a change of override always leads to a change of velocity in the machine (linear correlation). Value 1 for P-CHAN-00066: v = MIN (v_prog* Override, v_max) If this parameter is set to 1, the override always refers to the programmed feed. If the maximum feed in the block is smaller than the programmed feed multiplied by the current override, the current path feed is not changed when there is a change in override. Value 2 for P-CHAN-00066: Calculation is executed as for the value 0 provided there are no active functions that reduce velocity. For example, REDUCED_SPEED, REDUCED_SPEED_ZONE, IPO_ACTIVATE_TCP_VEL_LIMIT as for the value 1 provided there are no active functions that reduce velocity If velocity drops are not desired for technological reasons, this parameter must be set to 1.
Parameter	override_weight_prog_feed
Data type	UNS16
Data range	0: Change in override causes a change of velocity. 1: An override change only causes a velocity change if the programmed feed * override < maximum permissible velocity in the block 2: Override effect in conjunction with reduced velocity (available as of Build V3.1.3079.42)
Dimension	----
Default value	0
Remarks	Example of values: v_max: 50m/min v_prog: 80m/min v_red: 5m/min Override: 50% P-CHAN-00066=0 a) active reduced velocity v_set = 2.5m/min b) inactive reduced velocity v_set = 25m/min P-CHAN-00066=1 a) active reduced velocity v_set = 5m/min b) inactive reduced velocity v_set = 40m/min P-CHAN-00066=2 a) active reduced velocity v_set = 5m/min b) inactive reduced velocity v_set = 25m/min

P-CHAN-00071	Default acceleration profile at program start
Description	Default value for the selected acceleration profile type with path motions and oscillating axis motions.
Parameter	prog_start.slope.profile
Data type	SGN16
Data range	0: Step-shaped acceleration profile, (default, linear profile) 1: Trapezoidal acceleration profile 2: Sine-square acceleration profile 3: Trapezoidal HSC acceleration profile (across blocks)
Dimension	----
Default value	0
Remarks	The acceleration profile and the associated acceleration and ramp time weighting can be programmed in the NC program with the #SLOPE [TYPE..] command [PROG]. The maximum of the weighted ramp times P-AXIS-00195 is always effective with the trapezoidal HSC acceleration profile. P-AXIS-00198. For every independent axis, the acceleration profile can also be programmed specifically in the NC command with the key word SLOPE_TYPE [PROG].

P-CHAN-00090	Path velocity limit
Description	If no change is made to the parameter values by NC programming, this value limits path velocity after it is activated in the NC program.
Parameter	vector.velocity
Data type	REAL64
Data range	0 ... Maximum acceleration, application-specific
Dimension	mm/min
Default value	2000000000
Remarks	Parameterisation example: vector.velocity 1500

P-CHAN-00239	Automatic insertion of polynomials on internal B spline deselection
Description	This parameter automatically selects polynomial contouring (G261, #CONTOUR MODE [...]) when the B spline is deselected internally. The B spline #HSC[BSPLINE PATH_DEV=X TRACK_DEV=Y] then adopts the following parameters for polynomial contouring: #CONTOUR MODE[ DEV PATH_DEV=X TRACK_DEV=Y RELEVANT_PATH=X RELEVANT_TRACK=Y ] The exact response of the parameters is described in[PROG//section Polynomial contouring (G260/G261)].
Parameter	hsc.bspline.auto_contour_mode
Data type	UNS32
Data range	0: Deactivated (default) 1: General insertion of smoothing polynomial if B spline is internally deselected. 2: Insert smoothing polynomial on linear-circular, circular-circular and circular-linear transitions (recommended mode).
Dimension	----
Default value	0
Remarks

P-CHAN-00605	Conditional enable of the functionalities
Description	This parameter can be used to configure functions of the CNC that are activated in the channel depending on the program start mode. Several settings can be predefined for activation as soon as an NC program is started in the machining mode listed under the condition P-CHAN-00606 .
Parameter	configuration.path_preparation.fct_enable[<idx>] where idx 0, 1
Data type	STRING
Data range	See Path preparation function table
Dimension	----
Default value	FCT_DEFAULT
Remarks	Parameter is available as of the following Builds: V2.11.2040.04 ; V2.11.2810.02 ; V3.1.3079.17 ; V3.1.3107.10 If no individual machining mode is set at the start of the program, this corresponds to the setting ISG_STANDARD. The default settings under index 0 ("fct_enable[0]") are used. For reasons of backward compatibility, P-CHAN-00605 "fct_enable[0]" corresponds to the previous parameter "function" P-CHAN-00600. Both notations or parameters can be used alternatively.