Siemens SINUMERIK 840D sl Programming Manual page 928

Work preparation
3.16 Axis couplings
2. Activate coupling during previous programming of following spindle with COUPONC
Program code
N05 M3 S100 M2=3 S2=200
N10 G4 F5
N15 COUPDEF(S2,S1,1)
N20 COUPONC(S2,S1)
N10 G4 F5
3. Activate coupling with following spindle stationary with COUPON
Program code
N05 SPOS=10 SPOS[2]=20
N15 COUPDEF(S2,S1,1)
N20 COUPON(S2,S1)
N10 G4 F1
4. Activate coupling with following spindle stationary with COUPONC
Note
Positioning or axis mode
If the following spindle is in positioning or axis mode before coupling, then the following spindle
behaves the same for COUPON(<FS>,<LS>) and COUPONC(<FS>,<LS>).
Note
Leading spindle and axis operation
If, prior to the coupling being defined, the leading spindle is in axis operation, the velocity limit
value from machine data
MD32000 $MA_MAX_AX_VELO (maximum axis velocity) will still apply even after the coupling
is activated.
To avoid this behavior, the axis must be switched to spindle mode (M3 S... or M4 S...) prior
to the coupling being defined.
928
Comment
Leading spindle = master spindle = spindle 1
Following spindle = spindle 2
Leading spindle rotates at 100 rpm, following
spindle at 200 rpm.
Dwell time = 5 seconds of master spindle
Transformation ratio of FS to LS is 1.0 (de-
fault).
On-the-fly coupling to leading spindle and trans-
fer previous speed to S2.
S2 rotates at 100 rpm + 200 rpm = 300 rpm
Comment
Leading spindle = master spindle = spindle 1
Following spindle = spindle 2
Following spindle S2 in positioning mode.
Transformation ratio of FS to LS is 1.0 (de-
fault).
On-the-fly coupling to the leading spindle.
Coupling is closed, S2 stops at 20 degrees.
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming