Siemens SINUMERIK 840D sl Function Manual page 819

With tolerance window
For block change condition "Braking ramp" in the part program:
N10 POS[X]=100
N20 IPOBRKA(X,100)
N21 ADISPOSA(X,1,0.5)
N30 POS[X]=200
N40 POS[X]=250
N50 POS[X]=0
N60 X10 F100
N70 M30
At direction reversal (N50), the axis first brakes to reach the target position, before it can be
traversed in the opposite direction.
For block change condition "Braking ramp" in synchronized action:
In the technology cycle:
FINEA
POS[X]=100
ADISPOSA(X,2,0.3)
IPOBRKA(X,100)
POS[X]=200
POS[X]=250
N40 POS[X]=250
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
; Default effective
; Block change occurs when the X axis reaches
; position 100 and exact stop fine.
; Braking ramp block change condition
, Define tolerance window setpoint position for X axis
; as 0.5
; Block change occurs as soon as the X axis
; begins to brake and the
; setpoint position is ≥ 199.5.
; X axis does not brake at position 200,
; but continues traversing to position 250,
; as soon as the X axis starts to brake,
; and the position is ≥ 249.5,
; the block change takes place.
; the X axis brakes and traverses back
; to position 0
; the block change occurs at
; position 0 exact stop fine
; End of motion criterion fine exact stop
; Technology cycle block change takes place
; when the X axis has reached position 100
; and exact stop fine.
; Define tolerance window actual position for
; X axis as 0.3
; Activate block change criterion braking ramp
; Technology cycle block change takes place
; as soon as the X axis starts to brake and
; the X axis actual position is ≥ 199.7.
; X axis does not brake at position 200,
; but continues moving
; to position 250, as soon as the X axis
; begins to brake and reaches position
; ≥ 249.7, the block changes in the
; technology cycle.
Positioning Axes (P2)
Block change
819