Siemens SINUMERIK 840D Function Manual page 882

S3: Synchronous spindle
19.4 Special features
Example
Program code
N01 M3 S500
N02 M2=3 S2=300
N05 G4 F1
N10 COUPDEF(S2,S1,-1)
N11 COUPON(S2,S1)
N26 M2=3 S2=100
Application
Manufacturing operations with positioned leading spindle and rotating tools require exact
synchronism with the counter spindle which then functions like a following spindle. A turret
rotating about the following spindle allows parts to be machined with different tool types.
The following diagram shows an application in which the tool is positioned parallel to the main
spindle.
Figure 19-4
882
Comment
; S1 rotates in the positive direction with 500 rpm
; the master spindle is spindle 1
; S2 rotates in the positive direction with 300 rpm
; Coupling factor -1:1
; Activate coupling. The speed of the following spindle
S2 results from the speed of the leading spindle S1 and
the coupling factor.
; Programming the differential speed, S2 is the follow-
ing spindle.
Single-slide lathe with revolver around the Z axis
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA