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Path traversing behavior

8.8 Programmable contour/orientation tolerance (CTOL, OTOL, ATOL)

Job planning

Programming Manual, 07/2010, 6FC5398-2BP40-0BA0

491

Command for programming an axis-specific tolerance

ATOL is valid for:

• All compressor functions

• ORISON orientation smoothing

• All rounding types except G641, G644, OSD

<axis>: Name of the axis for which an axis tolerance is to be programmed

The value for the axis tolerance will be specified as a length or an

angle dependent on the axis type (linear or rotary axis).

Type: REAL

for linear axes: inch/mm (dependent on the

current dimensions setting)

ATOL

<value>:

Unit:

for rotary axes: degrees

Note

CTOL and OTOL have priority over ATOL.

General conditions

Scaling frames

Scaling frames affect programmed tolerances in the same way as axis positions; in other

words, the relative tolerance remains the same.

Example

Program code Comment

COMPCAD G645 G1 F10000 ; Activate COMPCAD compressor function.

X... Y... Z... ; The machine and setting data is applied here.

X... Y... Z...

CTOL=0.02 ; A contour tolerance of 0.02 mm is applied

starting from here.

X... Y... Z...

ASCALE X0.25 Y0.25 Z0.25 ; A contour tolerance of 0.005 mm is applied

starting from here.

X... Y... Z...

CTOL=–1 ; The machine and setting data is applied again

starting from here.

X... Y... Z...

Siemens SINUMERIK 828D Programming Manual

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