Machine data
2.3 Channel-specific machine data
Parameter Manual
140
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
Description:
This MD is used to determine whether the reaction of path curvature on path
acceleration and path velocity is taken into account.
0:
Not taken into account
> 0:
If required, the path velocity and path acceleration are reduced in order to
keep a sufficient reserve on the machine axes for centripetal acceleration.
0.75: Recommended setting.
MD20602 $MC_CURV_EFFECT_ON_PATH_ACCEL defines the proportion of the axis
accelerations (see MD32300 $MA_MAX_AX_ACCEL[..]) that can be used for cen-
tripetal acceleration. The remainder is used for changing the path velocity.
Centripetal acceleration is not required for linear blocks; the full axis
acceleration is therefore available for the path acceleration. On slightly
curved contours or with a sufficiently low maximum path feedrate
$MC_CURV_EFFECT_ON_PATH_ACCEL has only a partial or no effect. Accordingly,
the path acceleration is higher than that specified by (1. - MD20602
$MC_CURV_EFFECT_ON_PATH_ACCEL) * MD32300 $MA_MAX_AX_ACCEL[..].
There is an entry for each dynamic G code group.
Description: Allows the reaction of the path curvature on the path jerk to be taken into
account on especially jerk-sensitive machines.
Entry for each dynamic G code group.
Description: Factor to determine the degree of smoothing and torsion.
A larger value of this MD causes a stronger smoothing and thus a more homog-
enous curvature/torsion and resulting path velocity.
With this factor being zero no smoothing is performed.
There is an entry for all dynamic G code groups.
20602 CURV_EFFECT_ON_PATH_ACCEL EXP, C05 B1,B2
- Effect of path curvature on path dynamic DOUBLE NEW CONF
-
- 5 0., 0., 0., 0., 0., 0.,
0., 0., 0., 0....
0. 0.95 1/1
20603 CURV_EFFECT_ON_PATH_JERK EXP, C05 B1
- Effect of path curvature on path jerk DOUBLE NEW CONF
-
- 5 0., 0., 0., 0., 0., 0.,
0., 0., 0., 0....
0. 1000. 1/1
20605 PREPDYN_SMOOTHING_FACTOR EXP, C05 B1
- Factor for curve smoothing DOUBLE NEW CONF
-
808d-me42 5 1., 1., 1., 1., 1., 1.,
1., 1., 1., 1....
0.0 - 1/1
808d-me62 5 1., 1., 1., 1., 1., 1.,
1., 1., 1., 1....
0.0 - 1/1
808d-te42 5 1., 1., 1., 1., 1., 1.,
1., 1., 1., 1....
0.0 - 0/0
808d-te62 5 1., 1., 1., 1., 1., 1.,
1., 1., 1., 1....
0.0 - 0/0