Punching and Nibbling (N4)
15.2 Stroke control
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
271
15.2.5
PLC signals specific to punching and nibbling
Function
In addition to the signals used for direct stroke control, channel-specific PLC interface
signals are also available. These are used both to control the punching process and to
display operational states.
Signals
Signal
Activation
V3200 0003.0 (stroke enable)
The NC waits until the enable signal is available
before continuing the part program. Every punch
initiation of the NC is stopped for this time.
V3200 0003.2 (stroke suppression)
Allows the part program to be processed without
initiating a punching operation (dry run).
With active path segmentation, the axes traverse in
"Stop and go" mode.
V3200 0003.4 (delayed stroke)
Activates delayed stroke output if permitted by
PDELAYON
.
V3200 0003.1 (manual stroke initiation)
Enables the operator to initiate a punching operation
(controlled via the PLC) without executing the part
program.
The manual stroke initiation is acknowledged with IS
V3300 0006.1.
15.2.6
Punching and nibbling-specific reactions to standard PLC signals
Feed stop
With IS "Feed stop" (V3200 1000.3, V3200 1004.3 and V3200 1008.3), the NC reacts as
follows with regard to the stroke control:
Signal is detected in advance of instant t
1
: Stroke initiation is suppressed.
The next stroke is not initiated until the next start or until
the "Feed stop" signal has been cancelled.
Machining is then continued as if there had been no
interruption.
Signal is detected at instant t
1
:
The current stroke is executed to completion.
The NC then dwells in the state characterized by t
4
.
To allow it to respond in this manner, time monitoring of
the "Stroke active" and "Stroke initiation" signals is
dispensed with.