HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 286)

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4.28 Assignment, S
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M97 Synchronous function
Slides for which M97 is programmed wait until all slides have reached
this block. Program run then continues.
For complex machining operations (e.g. machining of several
workpieces), M97 is programmed with parameters.
Spindle synchronization G720
G720 controls the workpiece transfer from the master to the slave
spindle and synchronizes functions such as polygonal turning jobs.
Program the speed of the master spindle with Gx97 S.. and define the
speed ratio between the master spindle and the slave spindle with Q,
F. If you enter a negative value for Q or F, the direction of rotation of
the slave spindle will be reversed.
In the slave gear ratio J, enter the transmission ratio if the slave
spindle is driven through a transmission.
Remember that: Q * master speed = F * slave speed
Example: Synchronization with M97
. . .
[Slides $1, $2 wait for each other]
$1 N.. G1 X.. Z..
$2 N.. G1 X.. Z..
$1$2 N.. M97
. . .
Parameters
H Synchronous mark number – the evaluation takes place
only during interpretation of the NC programs
Q Slide number – use synchronization with Q if
synchronization with $x is not possible
D On/Off (default: 0)
„ 0: Off – Synchronization to run time of the NC program
„ 1: On – synchronization only during interpretation of the
NC programs
Parameters
S Number of the master spindle [1 to 4]
H Number of the slave spindle [1 to 4]—no input or H=0:
Switches off the spindle synchronization
C Offset angle [°] (default: 0°)
Q Master rotational speed factor (default: 1)
Range: -100 <= Q <= 100
F Master rotational speed factor (default: Q is loaded)
Range: –100 <= F <= 100
J Slave gear ratio