Hi,
I have a XY system and use a CNC file to move it.
Everything works OK, except for the following: when CNC execution starts, the system rushes at high speed to (X=0, Y=0) point, and only then goes to the first line of the CNC file.
If one of the axes is near 0, the system jumps and immediately stops with an error.
In the CNC file settings (screenshot attached) I specified low default values for speed/acceleration and a start position different from 0,0 - but all that is ignored.
the start position given in the CNC properties is only used if you use the compile mode OutQueue.
With compile mode SMC_CNC_REF, you need to provide the start position in the IEC application. The function block SMC_NCInterpreter has an input piStartPosition. You can initialize it with the output of the forward kinematic transormation FB for your machine. In your case probably SMC_TRAFOF_Gantry2.
Best regards,
Georg
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Hi,
I have a XY system and use a CNC file to move it.
Everything works OK, except for the following: when CNC execution starts, the system rushes at high speed to (X=0, Y=0) point, and only then goes to the first line of the CNC file.
If one of the axes is near 0, the system jumps and immediately stops with an error.
In the CNC file settings (screenshot attached) I specified low default values for speed/acceleration and a start position different from 0,0 - but all that is ignored.
Any idea how to avoid that move to 0,0 ?
Thanks.
Hi peterned,
the start position given in the CNC properties is only used if you use the compile mode OutQueue.
With compile mode SMC_CNC_REF, you need to provide the start position in the IEC application. The function block SMC_NCInterpreter has an input piStartPosition. You can initialize it with the output of the forward kinematic transormation FB for your machine. In your case probably SMC_TRAFOF_Gantry2.
Best regards,
Georg
Thanks Georg, that fixed it.