Replacement Of Spindle Functions; General - Siemens SINUMERIK 840D sl Function Manual

9.17.3

Replacement of spindle functions

9.17.3.1

General

Function
When a coupling is active the following spindle functions can be replaced for leading spindles:
● M40: Automatic gear stage change
● M41 ... M45 Programmed gear stage change
● SPOS, SPOSA and M19: Spindle positioning
Boundary conditions
● To replace a spindle function, the following conditions must be met:
– The programmed spindle must be the leading spindle of an active coupling.
– Leading and following spindle are located in the same channel. This is only detected if
– A programmed gear stage change must result in a real gear stage change. For this
● In a block, only one spindle function can be replaced. Multiple replacements lead to the
termination of the program processing. The spindle functions, which are to be replaced,
must then be distributed over several blocks.
Parameterization
Spindle function
The spindle functions to be replaced by the subprogram are selected in the machine data:
MD30465 $MA_AXIS_LANG_SUB_MASK
Bit
0
1
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
the leading spindle is located in the channel in which the coupling was closed. If the
leading spindle is changed to another channel, a gear stage change or positioning of
this spindle does not call the replacement subprogram.
purpose, the programmed and active gear stage must differ.
Meaning
Gear-stage change automatic (M40) and directly (M41-M45)
Val‐ Meaning
ue
0 No replacement
1 Replacement through the subprogram set in MD15700 and MD15702
Spindle positioning with SPOS / SPOSA / M19
Val‐ Meaning
ue
0 No replacement
1 Replacement through the subprogram set in MD15700 and MD15702
K1: Mode group, channel, program operation, reset response
9.17 Replacing functions by subprograms
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