Examples; Acceleration; Path Velocity Characteristic - Siemens SINUMERIK 828D Function Manual

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B2: Acceleration

4.3 Examples

Key statement

An excerpt from a part program is provided below, together with the associated acceleration characteristic, by

way of an example. These are used to illustrate how the path velocity can be adapted to take account of various

events and the resulting change in acceleration.

Part program (excerpt, schematic)

; Acceleration selection in accordance with fast input 1 ($A_IN[1]):

N53 ID=1 WHEN $A_IN[1] == 1 DO $AC_PATHACC = 2.*$MA_MAX_AX_ACCEL[X]

; Test override profile (simulates external intervention):

N54 ID=2 WHENEVER ($AC_TIMEC > 16) DO $AC_OVR=10

N55 ID=3 WHENEVER ($AC_TIMEC > 30) DO $AC_OVR=100

N1000 G0 X0 Y0 BRISK

N1100 TRANS Y=-50

N1200 AROT Z=30 G642

N2200 X = 70 G1 F10000 RNDM=10 ACC[X]=30 ACC[Y]=30

N2300 Y = 70

Function Manual, 09/2011, 6FC5397-0BP40-2BA0

Basic Functions

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