Siemens SINUMERIK 840C - Page 269

6 NC Machine Data (NC MD), NC Setting Data (NC SD) 09.95
6.5 Spindle-specific MD (spindle data)
Effect of the input values (different cases):
0: No controlled follow-up;
immediate normal follow-up
1...15000: Initial controlled follow-up;
switchover to normal follow-up after the delay
15001 and higher: Always controlled follow-up; no switchover to normal follow-up
Default setting link type
1)
496*
Default value Lower input limit Upper input limit Units
0 1 3
1)
4
2)
–
Active on
Power On
This machine data only applies to leading spindles.
Type of coupling:
0 No default
1 Setpoint position coupling with compensatory controller
2 Actual position coupling with compensatory controller; actual values of leading axis/leading
spindle are used for the compensatory control and monitoring.
3 Setpoint position coupling with simulated actual values of the leading axis/leading spindle;
the compensatory controller only reacts to following spindle or other leading axis/leading
spindle faults.
4 Actual position coupling/setpoint speed coupling
2)
The machine data is used for two applications.
Application:
A gearbox grouping can be configured with the G401 command. If the type of coupling has not
been defined in the G401 command, the default value from MD 496* is taken.
Example:
G401 S1 S2 S1: Leading spindle, S2: Following spindle, no coupling type.
If "No default" (MD 496* = 0) has been entered and no coupling type has been entered in
G401, reset alarm "GI CONFIGURATION illegal" is triggered.
_______
1) As from SW 3
2) As from SW 4
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SINUMERIK 840C (IA)