N4: Punching And Nibbling - Only 840D Sl; Brief Description; Stroke Control; General Information - Siemens SINUMERIK 840D sl Function Manual

N4: Punching and nibbling - only 840D sl

10.1

Brief description

10.1
Subfunctions
The functions specific to punching and nibbling operations comprise the following:
● Stroke control
● Automatic path segmentation
● Rotatable punch and die
● Clamp protection
They are activated and deactivated via language commands.
10.2

Stroke control

10.2
10.2.1

General information

Functionality
The stroke control is used in the actual machining of the workpiece. The punch is activated
via an NC output signal when the position is reached. The punching unit acknowledges its
punching motion with an input signal to the NC. No axis may move within this time period.
Repositioning takes place after the punching operation.
High-speed signals
"High-speed signals" are used for direct communication between the NC and punching unit.
Combined with the punch, they allow a large number of holes to be punched per minute
since the punch positioning times are interpreted as machining delays.
PLC signals
PLC interface signals are used for non-time-critical functions such as enabling and
monitoring.
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
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