Siemens SINUMERIK 840D sl Function Manual page 364

M3: Coupled axes
8.4 Electronic gear (EG)
Program code
; 2. Gear stage
N900
N910
N920
N999
Machine data
Only one section is specified, which extends beyond the necessary geometry/channel
configuration and machine axis parameters.
$MN_NUM_EG = 5
$MN_MM_NUM_CURVE_TABS = 5
$MN_MM_NUM_CURVE_SEGMENTS = 50
$MN_MM_NUM_CURVE_POLYNOMS = 100
Setting data
If the scaling described in Section "Electronic gear (EG) (Page 340) is used, the function value
from the following machine data changes according to the displacement:
MD43108 $SD_LEAD_SCALE_OUT_POS[4] = 1.2 ; scaling for table C4
System variables
In accordance with the above definitions, the following values are entered in the associated
system variables by the control.
Reference:
List Manual, System Variables
364
Comment
Y, <SynPosC99_Y>,
R1 * π, 1, &
Z, <SynPosC99_Z>,
10, 1)
EGDEF(C, C99, 1, Z,
1)
EGONSYN(C, "NOC",
<SynPosC>, C99,
<SynPosC_C99>, 1,
1, &
Z, <SynPosC_Z>, 4,
0)
M30
; Switch-on of leading axis Y
; Switch-on of leading axis Z
; "&" character means: command continued in
next line, no LF nor comment permissible in
program
; declaration of following C99 of step 1 as
leading axis of step 2,
; Setpoint value coupling
; Declaration of path via C4, setpoint cou-
pling
; Switch-on of software axis C99
; and of leading axis Z via C4
; Maximum number of gearboxes
; Maximum number of curve tables
; Maximum number of curve segments
; Maximum number of curve polynomials
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Special functions