High-Speed Signals - Siemens SINUMERIK 840D sl Function Manual

N4: Punching and nibbling - only 840D sl
10.2 Stroke control
10.2.2

High-speed signals

Functionality
High-speed signals are used to synchronize the NC and punching unit. On the one hand,
they are applied via a high-speed output to ensure that the punch stroke is not initiated until
the metal sheet is stationary. On the other, they are applied via a high-speed input to ensure
that the sheet remains stationary while the punch is active.
The high-speed digital inputs and outputs on the control are used to drive the punching unit.
The following signal chart illustrates the signal sequence.
(a) Axis motion of the machine as function v(t)
(b) "Stroke initiation" signal
(c) "Stroke active" signal
Figure 10-1 Signal chart
Note
The "Stroke active" signal is high-active for reasons relating to open-circuit monitoring.
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Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Extended Functions