Siemens SINUMERIK 840D sl Function Manual page 746

Detailed description
2.11 Subroutine call through NC language replacement
2.11.4 Spindle-related replacements during active synchronous spindle coupling
2.11.4.1 Select spindle-related NC functions/language commads
Function
In active synchronous spindle coupling, the following replacements can be executed for the
leading spindle of this coupling:
MD30465 $MA_AXIS_LANG_SUB_MASK
Bit 0 = 1: Automatic gear stage change with M40 and directly with M41 to M45
Bit 1 = 1: Spindle positioning with SPOS, SPOSA and M19
The automatic gear stage change takes place in speed programming based on the spindle
speed S of the leading spindle and active M40.
Note
The replacement is executed only if the programmed spindle is active as the leading spindle
of a synchronous spindle coupling and the leading and following spindles are located in the
same channel.
How the synchronous spindle coupling was activated is immaterial.
Configure replacement subroutine
The program name for the replacement subroutine is set by
MD15700 $MN_LANG_SUB_NAME (Name)
With machine data
MD15702 $MN_LANG_SUB_PATH (Path)
the path with which the user program set with MD15700 $MN_LANG_SUB_NAME is called.
The following are possible:
MD15702 = 0: /_N_CMA_DIR manufacturer cycles (default setting)
MD15702 = 1: /_N_CUS_DIR user cycles
MD15702 = 2: /_N_CUS_DIR standard cycles
188
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0