HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 334)

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4.38 Lathes with Multiple Slides
Program run
Block display: You can configure the block display for multiple slides.
The cursor displays the active NC block for each slide.
Start-block search for multi-slide programs:
U Activate the block display for all slides involved (channels).
U Select the start block for the first slide.
U Use the slide-switch key to switch to the block display of the next
slide.
U Select the start block for this slide.
U “Accept” the start blocks.
U Start the machining.
Positioning the steady rest
„ The steady rest is positioned by subprogram.
„ The workpiece is machined.
„ The steady rest is moved by subprogram to a parking position.
DIN program for steady-rest positioning
Finding a start block:
„ Select a suitable start block for each slide.
„ Every slide must have executed the same number of
synchronous points by the time the start block is
reached.
%LUEN_POS.NC
PROGRAMMKOPF [PROGRAM HEAD]
#SCHLITTEN $1$2 [SLIDE] Slide 1: tool carrier; slide 2: steady rest
. . .
BEARBEITUNG [MACHINING]
N 1 G59 Z1000
. . .
$1$2 N 2 M97 Synchronize slides 1 and 2
$2 N 3 L "LUE_POS" V1 LA300 Position the steady rest by subprogram
$1$2 N 4 M97 Slide 1 waits for steady rest
ZUORDNUNG $1 [ASSIGNMENT]
N 5 G14 Q0 Machining with slide 1
N 6 T2
N 7 G95 F0.6 G96 S230 M4
N 8 G0 X350 Z10
N 9 G810 . . .