Jerk With Programmed Rapid Traverse (G00) (Axis-Specific); General Information; Parameterization; Excessive Jerk For Block Transitions Without Constant Curvature (Axis-Specific) - Siemens SINUMERIK 828D Function Manual

Hide thumbs Also See for SINUMERIK 828D:

Table of Contents

B2: Acceleration

4.2 Functions

Jerk with programmed rapid traverse (G00) (axis-specific)

Frequently, the maximum jerk for the machine axes involved in the machining process must be set lower than the

machine's performance capability officially allows because of the supplementary conditions associated with the

specific process concerned.

For time-optimized traversing of the machine axes with programmed rapid traverse (part-program instruction

G00), a specific maximum value can be programmed for the axis-specific jerk.

JOG setup mode

This function does not affect jerk in respect of a rapid traverse override in JOG setup mode.

The maximum value for axis-specific jerk with programmed rapid traverse is parameterized (G00) using the axis-

specific machine data:

MD32434 $MA_G00_ACCEL_FACTOR

(scaling of the acceleration limitation with G00)

This is used to generate the maximum value for axis-specific jerk with programmed rapid traverse (G00) that is

taken into account by the path planning component during preprocessing:

Jerk[axis] =

MD32431 $MA_MAX_AX_JERK * MD32435 $MA_G00_JERK_FACTOR

General Information

In the case of block transitions without constant curvature (e.g. straight line > circle), the programmable controller

has to decelerate movement of the geometry axes significantly in order to ensure compliance with the

parameterized axis dynamics. For the purpose of reducing/avoiding deceleration in connection with block

transitions without constant curvature, a higher level of axis-specific jerk can be enabled.

The excessive jerk is parameterized using a dedicated axis-specific maximum value.

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

Basic Functions

Sinumerik 840d sl