Feed hold

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A feed hold can be requested at any time, through a command msg or via a button.
If valid in the actual stat eof the machine it requires that the motionBuffer needs to be modified:

• change speed profile in order to come to the quickest possible controlled stop
• adjust the motions in order to again speed up after 'resume' has been given

Design Challenges:

1. The trajectory should not change
2. It may not be possible to come to a stop within the current activeMotion, so many motionItems may be affected

To speed up calculations, the changes in speed-profile will all be done with 2nd order T-profiles