Fagor 8040 MC CNC, Manual

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Chapter 3 - page 4
MC work mode
3.1.2 SAFETY PLANE
In all operations, there are four work planes.
Starting plane or tool position when calling the cycle. It does not
have to be defined.
Safety plane . It is used for the first approach and for withdrawing the
tool after the machining operation. It is defined with parameter Zs .
Approach (to the part) plane . It does not have to be defined. The CNC
calculates ti, at 1 mm off the part surface.
Part surface . It is defined with parameter Z .
The tool moves in rapid (G00) to the safety plane (Zs), it keeps on going in rapid to the approach plane
(up to 1mm off the part surface) and, finally, it moves at machining feedrate (G01) down to the part
surface.
The approach to the part surface depends on the tool position.
If it is above the safety plane (left drawing), it first moves on X and Y and then on Z.
If it is below the safety plane (right drawing), it first moves on Z up to the safety plane, then on X
and Y and finally on Z down to the part surface.
3. Work with operations or cycles
3.1 Operation editing mode
3.1.2 Safety plane