Ncu-Global Frames (Sw 5 And Higher) - Siemens sinumerik 840d Programming Manual

Frames
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6.9 NCU-global frames (SW 5 and higher)

840D 840D
NCU 571 NCU 572
NCU 573
6.9 NCU-global frames (SW 5 and higher)
Function
NCU-global frames are only available once for all
channels of each NCU. NCU-global frames can be
written and read from all channels. The NCU-global
frames are activated in the respective channel.
Offsets, scalings and mirrorings can be applied to
channel axes and machine axes by means of global
frames.
With global frames there is no geometrical
relationship between the axes. Therefore, it is not
possible to perform rotations or program geometry
axis identifiers.
• It is not possible to use global frames for rotations.
If a rotation is programmed, it is rejected and
alarm: "18310 channel%1block%2 frame: rotation
not allowed" is issued.
• Chaining of global frames and channel-specific
frames is possible. The resulting frame contains all
frame elements including rotations for all axes. If a
frame with rotation elements is assigned to a global
frame, it is rejected and alarm "Frame: rotation not
allowed" is issued.
NCU-global base frames: $P_NCBFR[n]
You can configure up to eight NCU-global base frames.
Machine manufacturer
The number of global base frames is configured via
machine data. (See/FB/ K2, Axes, Coordinate
Systems, Frames)
Channel-specific base frames can be present at the
same time.
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SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition
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