Approach/Retraction - Siemens SINUMERIK 840D sl Operating Manual

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Axis sequence

Other additive transformations can be added to the offsets before (X0, Y0, Z0) or after (X1,

Y1, Z1) swiveling (see Section "Work offsets").

Approach/retraction

If you want to optimize approach/return for swiveling with the B axis, you can create a

special cycle that ignores the automatic approach/retraction strategy.

You can insert the approach/retraction cycle between any machining step program blocks,

but not within linked program blocks.

The starting point for the approach/retraction cycle is the safety clearance approached after

the last machining operation.

If you want to perform a tool change, you can move the tool through a total of three positions

(P1 to P3) to the tool change point and through a maximum of three additional positions (P4

to P6) to the next starting point.

The 1st, 3rd, 4th and 6th positions move the linear axes, while the 2nd and 5th positions

move the rotary axes.

If no tool change is needed you can generate no more than six motion blocks.

Operating Manual, 03/2013, 6FC5398-8CP40-3BA1

axis-by-axis: Swivel coordinate system axis-by-axis

Solid angle: Swivel via solid angle

Proj. angle: Swiveling via projection angle

Direct: Position rotary axes directly

Sequence of the axes which are rotated around - (only for axis-by-axis swivel

XYZ or XZY or YXZ or YZX or ZXY or ZYX

New zero point of rotated surface

Working with a B axis (only 840D sl)

The sequence of the axes can be

interchanged as required using the

15.5 Approach/retraction

Sinumerik 828d turning