Siemens SINUMERIK Series Function Manual page 739

Program code
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 13-5
Requirements
Basic requirements for differential speed programming:
● Synchronous spindle functionality is required.
● The dynamic response of the following spindle must be at least as high as that of the
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
Application on a single-slide turning machine with turret about Z axis
leading spindle. Otherwise, the system may suffer from reduced quality, for example, rigid
tapping without a compensating chuck G331/G332.
Comment
; Coupling factor -1:1
; Activate coupling, the speed of following spindle S2
; results from the speed of the main spindle S1 and
; the coupling factor
; Programming of the speed difference,
; S2 is the following spindle
S3: Synchronous spindle
13.4 Points to note
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