N4: Own channel - only 840D sl
9.2 Stroke control
Extended Functions
558 Function Manual, 03/2013, 6FC5397-1BP40-3BA1
9.2.3 Criteria for stroke initiation
Initiate a stroke
The stroke initiation must be set, at the earliest, for the point in time at which it can be
guaranteed that the axes have reached a standstill. This ensures that at the instant of
punching, there is absolutely no relative movement between the punch and the metal sheet
in the machining plane.
The following diagram shows the various criteria that can be applied to stroke initiation.
([DFWVWRSILQH
([DFWVWRSFRDUVH
(QGRILQWHUSRODWLRQ
,
$
W
W
W
W
W
W
Figure 9-2 Signal chart: Criteria for stroke initiation
The time interval between t
1
and t
2
is determined by the reaction of the punching unit to
setting of output A
0
. This cannot be altered, but can be utilized as a lead time for minimizing
dead times.
The diagram above shows the default setting with which the output is set when the "Exact
stop fine window" is reached (
G601; default setting of G group 12). The punch initiation times
t''
1
and t'
1
are programmed by means of G602 and G603 (see table below).
Programming Activation Description
G603
Stop interpolation The interpolation reaches the block end. In this case,
the axes continue to move until the overtravel has
been traversed, i.e. the signal is output at an
appreciable interval before the axes have reached
zero speed (see t"
1
).
To Next Page
Loading...
Need help?
General
