Siemens SINUMERIK 840D sl Function Manual page 192

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Detailed description

2.3 Continuous -path mode

$MC_ADAPT_PATH_DYNAMIC[1] = 4

$MC_LOOKAH_SMOOTH_FACTOR = 1%

With path dynamic response adaptation and path smoothing

The path-velocity characteristic has been obtained through selection of path dynamic

response adaptation and path smoothing.

The standard path rounding parameter settings for deselected path smoothing and active

path dynamic response adaptation were selected:

$MC_ADAPT_PATH_DYNAMIC[1] = 4

$MC_LOOKAH_SMOOTH_FACTOR = 0%

(same meaning as $MC_LOOKAH_SMOOTH_FACTOR = 100%)

Installation and startup

The basic prerequisites for starting up the path dynamic response adaptation function are as

• Determination of the natural frequency of the path axes for parameter assignment of

• Determination of the dynamic response limiting values: Velocity, acceleration, and jerk

Determination of the dynamic response limiting values

The determination of the dynamic response limiting values for the traversing of path axes by

means of acceleration with jerk limiting (SOFT) is described below. This procedure can be

transferred analogously to the case of acceleration without jerk limiting (BRISK).

1. Deactivate the dynamic response adaptation:

dynamic response adaptation:

MD32440 $MA_LOOKAH_FREQUENCY (smoothing frequency for LookAhead)

MD20465 $MC_ADAPT_PATH_DYNAMIC[1] = 1 (adaptation of the path dynamic

Basic logic functions: Continuouspath Mode, Exact Stop, LookAhead (B1)

Function Manual, 11/2006, 6FC5397-0BP10-2BA0

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