Brief Description
1.3 Frames
Axis Types, Coordinate Systems, Frames (K2)
1-4 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
WCS
The workpiece coordinate system (WCS) has the following properties:
• In the workpiece coordinate system all the axes coordinates are programmed (parts
program).
• It is made up of geometry axes and special axes.
• Geometry axes always form a perpendicular Cartesian coordinate system.
• Special axes form a coordinate system without any geometrical relation between the
special axes.
• The names of the geometry axes and special axes can be defined.
• The workpiece coordinate system can be translated, rotated, scaled or mirrored with
FRAMES (TRANS, ROT, SCALE, MIRROR).
Multiple translations, rotational movements, etc., are also possible.
Zero offset external
The zero offset external has the following properties:
• At a time defined in the PLC, a predefined additional zero offset between the basic and
the workpiece coordinate systems is activated.
• The magnitudes of the offsets can be set by the following for each of the axes involved:
– PLC
– Operator Panel
– Part program
• Activated offsets take effect at the instant the first motion block of the relevant axes is
processed after offset activation. The offsets are superimposed on the programmed path
(no interpolation).
The velocity, at which the zero offset external is applied, is as follows:
Programmed F value plus +1/2 JOG velocity.
The zero offset external is traversed at the end of G0 blocks.
• The activated offsets are retained after RESET and end of program.
• After POWER ON, the last active offset is still stored in the control but must be
reactivated by the PLC.
1.3 1.3 Frames
FRAME
A FRAME is a closed calculation rule that translates one Cartesian coordinate system into
another.
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