Switching Off The Functions - Siemens SINUMERIK 840C Installation Instructions Manual

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Table of Contents

12 Functional Descriptions

12.9.2 Description of function

G98 F... Leading feedrate for a rotary axis in rev/min.

The path feedrate is calculated internally on the basis of the leading feedrate of the path axes

G98 is modal and belongs to the following G group:

Internal G group division with @36b:

G group division in all other cases (not for @36b):

Initial setting for turning

Initial setting for milling

Initial setting can be set via MD

When the "Thread cutting position-controlled spindle" function is selected, G98 is

automatically triggered when G36 is called. G98 can also be programmed on its own in a block

in the same way as G94, G95, G96, G97. If G98 is programmed together with several rotary

axes or with linear axes only, alarm 3006 "Wrong block structure" is triggered.

The function G36 is deactivated by programming any other interpolation type (G00, G01, G02,

G33 ...) from the 1st G group.

When G36 is switched off, the previous G command from the 12th G group (G94, G95, G96,

G97, G98) becomes active.

The function G98 can also be switched off by programming any other command (G94, G95,

G96, G97 ...) from the 12th G group.

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Switching off the functions

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