High-Speed Signals - Siemens SINUMERIK 802D sl Function Manual

Punching and Nibbling (N4)
15.2 Stroke control
PLC signals
PLC interface signals are used for non-time-critical functions such as enabling and
monitoring.
15.2.2

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 15-1 Signal chart
266
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0