Making The Initial Settings More Flexible; Compressor Functions (Compon, Compcurv, Compcad) - Siemens SINUMERIK 840D sl Function Manual

9.8.8.11

Making the initial settings more flexible

Initial setting/initial SERUPRO setting
Machine data MD20112 $MC_START_MODE_MASK defines the initial setting of the control
for part program start with respect to the G codes (especially the current plane and settable
zero offset), tool length compensation, transformation, and axis couplings. The special option
exists for the SERUPRO operation of using
MD22620 $MC_ENABLE_START_MODE_MASK_PRT
to select an initial setting that differs from the normal part program start. The new setting must
therefore been stored in:
MD22620 $MC_START_MODE_MASK_PRT
The meaning of the bits of MD22620 is identical to those of:
MD20112 $MC_START_MODE_MASK.
Example:
The synchronous spindle coupling at the beginning of the SERUPRO operation is retained for
the part program start.
$MC_START_MODE_MASK = 'H400'
$MC_START_MODE_MASK_PRT = 'H00'
$MC_ENABLE_START_MODE_MASK_PRT = 'H01'
9.8.8.12

Compressor functions (COMPON, COMPCURV, COMPCAD)

● If the target block for block search type 2 or type 4 (block search with calculation to ...) is
in a program section in which a compressor function (COMPON, COMPCURV, COMPCAD) is
active, positions are approached on the path calculated by the compressor on repositioning.
These positions must precisely match the positions on the path programmed in the part
program.
● If programmed blocks are eliminated from the part program during compression, these
blocks will not be found at the target block in the block search ⇒ Alarm 15370 "Search target
not found."
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K1: Mode group, channel, program operation, reset response
; synchronous spindle coupling not
configured
; is switched off
; remains active
; $MC_START_MODE_MASK_PRT is evaluated
in SERUPRO instead of
$MC_START_MODE_MASK
9.8 Block search Type 5 (SERUPRO)
525