Configuration Of A Multi-Spindle Turning Machine - Siemens SINUMERIK 840D sl Function Manual

Several Operator Panels on Several NCUs, Distributed Systems (B3)
Examples
N2150 WHILE (rl == $AN_AXCTAS[ctl])
Note
Programming in the NC program:
WHILE ($AN_AXCTSWA[n] == 0)
ENDWHILE
cannot be used as a reliable method of determining whether an earlier axis container rotation
has finished. Although in software version 7.x and later, $AN_AXCTSWA performs an
implicit preprocessing stop, this type of programming cannot be used, as the block can be
interrupted by a reorganization. The system variable then returns "0" as the axis container
rotation is then ended.
2.15.8

Configuration of a multi-spindle turning machine

Introduction
The following example describes the use of:
● Several NCUs in the NCU link group
● Flexible configuration with axis containers
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:
250
– 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).
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions