Siemens SINUMERIK 840D sl Function Manual page 620

N4: Own channel - only 840D sl
10.3 Activation and deactivation
In contrast to punching, the first stroke is made at the start point of the block with the activating
command, i.e. before the first machine motion.
SON has a modal action, i.e. it remains active until either SPOF or PON is programmed or until
the program end is reached.
The stroke initiation is suppressed in blocks without traversing information relating to the axes
designated as punching or nibbling axes (typically those in the active plane). If a stroke still
needs to be initiated, then one of the punching/nibbling axes must be programmed with a 0
traversing path. If the first block with SON is a block without traversing information of the type
mentioned, then only one stroke takes place in this block since the start and end points are
identical.
Programming example:
Program code
:
:
N70 X50 SPOF
N80 X100 SON
:
:
SONS
Nibbling ON (in position control cycle)
SONS behaves in the same way as SON. The function is activated in the position control cycle,
thus allowing time-optimized stroke initiation and an increase in the punching rate per minute.
PON
Punching ON
PON activates the punching function and deactivates SON.
PON has a modal action like SON.
In contrast to SON, however, a stroke is not executed until the end of the block or, in the case
of automatic path segmentation, at the end of a path segment. PON has an identical action to
SON in the case of blocks which contain no traversing information.
Programming example:
Program code
:
N100 Y30 SPOF
N110 Y100 PON
:
620
Comment
; Positioning without punch initiation
; Activate nibbling, initiate a stroke before the
; Motion (X=50) and at the end of the programmed
; motion (X=100)
Comment
; Positioning without punch initiation
; Activate punching, punch initiation at the end of the
; positioning operation (Y=100)
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions