Siemens SINUMERIK 840D sl Function Manual page 372

R3: Extended stop and retract
6.2 Control-managed ESR
Bit
0
1
Note
Influence of the interface signals
• The axial NC/PLC interface signal DB31 DBB4.3 (feed stop) influences the complete
retraction motion. All axis motion defined using POLFMASK and POLFMLIN are stopped.
• The NC/PLC interface signal, DB21 DBB7.3 (NC stop) has no effect on the retraction
movement.
Programming
The destination position for the retraction axis is programmed with the language command:
Retraction position POLF
The retraction position for geometry and channel axes is programmed using the POLF
program command. The retraction position can be specified either absolutely or
incrementally. When the retraction position is incrementally specified, the effective retraction
position is obtained from the actual position of the axis at the time of rapid lift plus the
programmed retraction distance.
• Absolute: POLF[<axis name>] = <retraction position>
• Incremental: POLF[<axis name>] = IC(<retraction distance>)
POLFis modal.
Geometry axes
The retraction positions of geometry and channel axes are programmed in the workpiece
coordinate system WCS. The frame valid in the channel at the time of rapid lift is taken into
account for the retraction motion.
NOTICE
Frames with rotation
Frames with rotation influence the retraction position of geometry axes.
Machine axes
The retraction positions of machine axes are programmed in the machine coordinate system
MCS. The frame valid in the channel at the time of rapid lift is nottaken into account for the
retraction motion.
372
Value Description
Response to the axial NC/PLC interface signal DB31 DBB4.3 (feed stop) or context-sensitive
interpolator stop.
0 Retraction motion stop for axial feed stop or context-sensitive interpolator stop
1 No retraction motion stop for axial feed stop or context-sensitive interpolator stop
Response to the channel-spec. NC/PLC interface signal DB21 DBB6.0 (feed disable)
0 Retraction motion stop for feed disable in the channel
1 No retraction motion stop for feed disable in the channel
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions