Siemens SINUMERIK 840D sl Function Manual page 249

B3: Several operator panels connected to several NCUs, distributed systems - only 840D sl
Machine description
● Distributed on the circumference of a drum A (front-plane machining) the machine has:
● Distributed on the circumference of a drum B (rear-plane machining) the machine has:
● Couplings:
Term: Position
Main spindle HS
NCU assignment
The axes and spindles of a position (for this example) are each assigned to an NCU. One of
the NCUs, the master NCU, controls the axes for the rotations of drums A and B additionally.
There are 4 NCUs with a maximum of the following axes:
Number of axes
Per NCU
Slide 1: X
2: X
Spindles: HS
Transfer axis: ZG
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
– 4 main spindles, HS1 to HS4
Each main spindle has the possibility of material feed (bars, hydraulic bar feed, axes:
STN1 - STN4).
– 4 cross slides
– Each slide has two axes.
– Optionally a powered tool S1-S4 can operate on each slide.
– 4 counterspindles GS1 to GS4
– 4 cross slides
– Each slide has two axes.
– Optionally a powered tool S5-S8 can operate on each slide.
– The position of each counterspindle can be offset through a linear axis for example for
transferring parts from the main spindle for rear-plane machining in drum B. (Transfer
axes. Axes: ZG1 - ZG4).
– If drum A rotates, all main spindles of this drum are subordinate to another group of
slides.
– If drum B rotates, all main counterspindles and all transfer axes of this drum are
subordinate to another group of slides.
– The rotations of drums A and B are autonomous.
– The rotations of drums A and B are limited to 270 degrees.
(range and twisting of supply cables)
and counterspindle GS
i
the following axes/spindles must be configured:
i
1, Z 1
i i
2, Z 2
i i
, GS , powered tools: S1, S2
i i
i
together with their slides characterize a position.
i
2.15 Examples
249