Siemens SINUMERIK 840D sl Function Manual page 426

Detailed description
2.3 Setpoint /actual-value system
MD30230 $MA_ENC_INPUT_NR[n])
(actual-value assignment: Input on drive module/measuring circuit module):
•
MD30240 $MA_ENC_TYPE[n] (type of actual-value acquisition):
Enter the encoder type used here.
MD30242 $MA_ENC_IS_INDEPENDENT[n]:
To prevent actual-value corrections influencing the actual value of an encoder defined in the same
axis, the latter must be declared independent.
0:
1:
MD index for actual-value routing
The coding of the machine data index [n] for actual-value routing is:
[encoder no.]
0
1
38
SINUMERIK FM NC:
Encoder is independent
Encoder is dependent
For first encoder
For second encoder
Basic logic functions: Velocities, Setpoint/Actual Value Systems, Closed-Loop Control (G2)
= 1 - 4, in accordance with input selected X3 - X6
Function Manual, 11/2006, 6FC5397-0BP10-2BA0