Section:
Page
PROGRAMMING
18
Chapter: 6
6.5.5 AXIS X AS AN INFINITE SLAVE OF ANOTHER AXIS (G34)
Function G34 enables indefinite synchronization of axis X with an external device.
When this feature is to be used one should:
Set the machine parameter "P100(4)=1"
The machine cannot have a Y axis, using the A2 feedback connector A2 as input for
feedback from the external device.
The external device must have an encoder.
Set machine parameter "P77" with the number of pulses of said encoder.
The programming format is:G34 X
Where X
is the synchronization or positioning pass of axis X per turn of the external
device.
Attention:
While function G34 is activated, programmed feedrate F cannot be altered.
If the Feed-Hold signal is activated the CNC stops the axis feed and starts
this again when the Feed-Hold is deactivated.
Function G34 is modal and incompatible with G00, G01, G02, G03, G33
and G75.
On power-up, after executing M30, G74 X or after an Emergency or reset,
the CNC assumes code G00.
Example of a plastic cutter
There is a roller with a wedge which acts like a shear.
Cuts are to be made every 125 mm along a plastic strip.
The feedback for the plastic feeder will be taken to connector A1 and correspond to axis
X.
The roller with wedge must have an encoder. This feedback will be taken to connector
A2.
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