Path Action; Exact Stop (G60, G9, G601, G602, G603) - Siemens SINUMERIK 840D sl Programming Manual

Path action

11.1

Exact stop (G60, G9, G601, G602, G603)

Function
In exact stop traversing mode, all path axes and special axes involved in the traversing
motion that are not traversed modally, are decelerated at the end of each block until they
come to a standstill.
Exact stop is used when sharp outside corners have to be machined or inside corners
finished to exact dimensions.
The exact stop specifies how exactly the corner point has to be approached and when the
transition is made to the next block:
• "Exact stop fine"
The block change is performed as soon as the axis-specific tolerance limits for "Exact stop
fine" are reached for all axes involved in the traversing motion.
• "Exact stop coarse"
The block change is performed as soon as the axis-specific tolerance limits for "Exact stop
coarse" are reached for all axes involved in the traversing motion.
• "Interpolator end"
The block change is performed as soon as the control has calculated a set velocity of zero
for all axes involved in the traversing motion. The actual position or the following error of
the axes involved are not taken into account
Note
The tolerance limits for "Exact stop fine" and "Exact stop coarse" can be set for each axis via
the machine data.
Syntax
G60 ...
G9 ...
G601/G602/G603, etc.
Significance
G60:
G9:
G601:
G602:
G603:
Fundamentals
Programming Manual 09/2011, 6FC5398-1BP40-2BA0
Command for activation of the modal exact stop
Command for activation of the non-modal exact stop
Command for activation of the exact stop criterion "Exact stop fine"
Command for activation of the exact stop criterion "Exact stop coarse"
Command for activation of the exact stop criterion "Interpolator end"
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