This applies to all cycles in the Milling Environment, although it is most applicable to the 3D Slot, and Surface cycles.
The Plunge feedrate is used when the tool is moving downwards at an angle of over 45 degrees (the Z distance is greater than the XY distance). At all other times, the tool uses the Feedrate.
Moving at High Feedrate in Surface Cycles
Use a high feedrate instead of rapid moves when optimised is selected for long link moves to ensure that the tool is moved in a straight line and no unresolved or ‘dog-leg’ moves are produced.
You can define the value for the high feedrate within the Code Wizard or by editing the machine parameters and specifying the Max High Feed value.