Siemens sinumerik 840D sl Function Manual page 294

Detailed description
2.4 Electronic gearbox (EG)
"ACN": AbsoluteCo-ordinateNegative, Absolute measurement specification, rotary axis
traverses in negative rotation direction
"ACP": AbsoluteCo-ordinatePositive, Absolute measurement specification, rotary axis
traverses in positive rotation direction
"DCT": DirectCo-ordinateTime-optimized, Absolute measurement specification, rotary axis
traverses time-optimized to programmed synchronized position
"DCP": DirectCo-ordinatePath-optimized, Absolute measurement specification, rotary axis
traverses path-optimized to programmed synchronized position
LA : Axis identifier of the leading axis i
i
SynPosLAi: Synchronized position of leading axis i
Zi: Counter for coupling factor of leading axis i
Ni: Denominator for coupling factor of leading axis i
Note
The parameters indexed with i must be programmed for at least one leading axis, but for no
more than five.
The function is active only for modulo following axes that are coupled to modulo leading
axes.
Tooth gap
The tooth gap is defined as 360 degrees * Zi / Ni
Example:
EGONSYNE(A, "FINE", FASysPos, "Traversing mode", B, 0, 2, 10)
Tooth gap: 360*2/10 = 72 (degrees)
Approach response with FA at standstill
In this case, the time-optimized and path-optimized traversing modes are identical.
The table below shows the target positions and traversed paths with direction marker (in
brackets) for the particular approach modes:
Programmed Position of the
synchronized following axis
position FaSysPos before
EGONSYNE
110 150
110 350
130 0
130 30
130 190
190 0
230 0
74
Traversing mode Traversing mode
NTGT/NTGP DCT/DCP
182 (+32) 110 (-40)
326 (-24) 110 (+120)
346 (-14) 130 (+130)
58 (+28) 130 (+100)
202 (+12) 130 (-60)
334 (-26) 190 (-170)
14 (+14) 230 (-130)
Traversing mode
ACP
110 (+320)
110 (+120)
130 (+130)
130 (+100)
130 (+300)
190 (+190)
230 (+230)
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
Traversing mode
ACN
110 (-40)
110 (-240)
130 (-230)
130 (-260)
130 (-60)
190 (-170)
230 (-130)