2. Activate coupling during previous programming of following spindle with COUPONC
Program code Comment
Leading spindle = master spindle = spindle 1
Following spindle = spindle 2
N05 M3 S100 M2=3 S2=200 Leading spindle rotates at 100 rpm, following
spindle at 200 rpm.
N10 G4 F5 Dwell time = 5 seconds of master spindle
N15 COUPDEF(S2,S1,1) Transformation ratio of FS to LS is 1.0 (de-
fault).
N20 COUPONC(S2,S1) On-the-fly coupling to leading spindle and trans-
fer previous speed to S2.
N10 G4 F5 S2 rotates at 100 rpm + 200 rpm = 300 rpm
3. Activate coupling with following spindle stationary with COUPON
Program code Comment
Leading spindle = master spindle = spindle 1
Following spindle = spindle 2
N05 SPOS=10 SPOS[2]=20 Following spindle S2 in positioning mode.
N15 COUPDEF(S2,S1,1) Transformation ratio of FS to LS is 1.0 (de-
fault).
N20 COUPON(S2,S1) On-the-fly coupling to the leading spindle.
N10 G4 F1 Coupling is closed, S2 stops at 20 degrees.
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.
Work preparation
3.16 Axis couplings
NC programming
928 Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
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