Siemens SINUMERIK 840D sl Function Manual page 464

R3: Extended stop and retract
9.2 Control-managed ESR - 840D sl only
Rapid lift without enabled retraction movement
If, for an axis, ESR_REACTION=21 is configured and enabled with $AC_ESR_ENABLE=1,
but e.g. no retraction motion is enabled with POLFMASK, then, for this axis,
ESR_REACTION=22 is active (extended stopping).
Examples for the behavior of path axes for different enable signals
"NC-controlled retraction" is configured for path axes X and Y:
● ESR_REACTION[X] =21
● ESR_REACTION[Y] =21
1. "Extended stop and retract" and retraction motion is enabled for both path axes:
– $AA_ESR_ENABLE(X)=1
– $AA_ESR_ENABLE(Y)=1
– POLFMASK(X,Y)
For rapid lift, X and Y execute the programmed retraction motion.
2. "Extended stop and retract" is only enabled for one path axis, but retraction motion is
enabled for both path axes:
– $AA_ESR_ENABLE(X)=0
– $AA_ESR_ENABLE(Y)=1
– POLFMASK(X,Y)
For rapid lift, for axis X, due to the path interrelationship, in spite of the fact that it is not
enabled, "extended stopping" corresponding to ESR_REACTION = 22 is executed.
Axis Y executes the programmed retraction motion.
3. However, for both path axes, "Extended stop and retract" is enabled – but retraction motion
only for one path axis:
– $AA_ESR_ENABLE(X)=1
– $AA_ESR_ENABLE(Y)=1
– POLFMASK(Y)
For rapid lift, for axis X, due to the path interrelationship, in spite of the missing enable
signal, retraction motion "extended stopping" corresponding to ESR_REACTION = 22 is
executed.
Axis Y executes the programmed retraction motion.
Responses to stop and axis enable signals
Stop behavior for the retracting movement in response to "Axial feed stop" and "Feed disable"
signals are defined with the following channel-specific machine data:
MD21204 $MC_LIFTFAST_STOP_COND
Bit
0
464
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
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Special functions