Additional functions
13.5 Synchronous spindle
Job planning
13-18 Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
Speed ratio SR
T
The speed ratio is defined with parameters for FS (numerator) and LS (denominator).
Options:
• Following and leading spindle rotate at the same speed (n
FS
= n
LS
; SR
T
positive
• Rotation in the same or opposite direction (SR
T
negative) between LS and FS
• Following and leading spindles rotate at different speeds
(n
FS
= SR
T
• n
LS
;SR
T
≠ 1)
Application: Polygonal turning
Example:
N ... COUPDEF (S2, S1, 1.0, 4.0)
Meaning: the following spindle S2 and the leading spindle S1 rotate at a speed ratio of 0.25.
6SLQGOH
/HDG
VSLQGOH
6SLQGOH
)ROORZLQJ
VSLQGOH
QQ
Note
The numerator must always be programmed. If no numerator is programmed, "1" is taken as
the default.
The speed ratio can also be changed on-the-fly, when the coupling is active.
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