Examples - Siemens SINUMERIK 840D Function Manual

M3: Coupled axes
14.5 Generic coupling
Braking response for transformations
If the axis to be braked is the output of a transformation, and it has a (MCS) travel command in
the collision direction, then the brake is transferred to all input axes of the transformation in both
directions, and a path stop is executed for this transformation. However, the following
exceptions apply: It does not apply to the independent axes of the transformation. For
TRANSMIT and TRAANG, these are the axes specified in machine data
$MC_TRAFO_AXES_IN_*[2]. For the transformations, braking is only transferred to their
dependent input axes.
DRF offset
Setting a CP-SW limit stop can cause a DRF movement to be canceled, as shown in the
following example:
The basic motion is path motion with extremely low velocity in the positive direction. A larger
DRF correction motion applies to this in the opposite direction. This results in a travel command
in the negative direction. If these movements are now stopped using a CP-SW limit stop, then
for standard machine data, this means that DRF motion is canceled, and only path motion is
continued after the stop is withdrawn.
14.5.11.5

Examples

Example 1: Generic coupling type "freely programmable" (CPSETTYPE[FAx] = "CP")
Configuration:
MD26110 $MA_POS_LIMIT_PLUS[AX2]=15 ;
MD30455 $MA_MISC_FUNCTION_MASK[AX2] =
'H800' ;
Programming:
; start position of X and Y
N100 G0 X0 Y0
; coupling activation FA=Y LA=X
; set with CPMBRAKE bit 0 (transfer of the brake to the leading axis)
N120 CPON=Y CPSETTYPE="CP" CPLA=X CPLDEN=2 CPMBRAKE B_OR='H1'
N140 G4 F2
; traverse leading axis X
N200 G1 X=1000 F1000
556
Position of the 1st software limit
switch of the following axis for the
traversing range limit in the positive
direction
Bit 11 = 1 (CP-SW limit monitoring is
activated)
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA