Punching and Nibbling (N4)
15.2 Stroke control
Turning, Milling, Nibbling
266 Function Manual, 11/2012, 6FC5397-1CP10-5BA0
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.
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 

,

$

W

W

W

W

W
F
E
D
(a) Axis motion of the machine as function v(t)
(b) "Stroke initiation" signal
(c) "Stroke active" signal
Figure 15-1 Signal chart
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