Detailed Description
2.3 Setpoint/actual-value system
Velocities, Setpoint/Actual-Value Systems, Closed-Loop Control (G2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-29
MD30242 $MA_ENC_IS_INDEPENDENT[n] (encoder is independent):
To prevent actual-value corrections influencing the actual value of an encoder defined in the same
axis, the latter must be declared independent.
0: Encoder is independent
1: Encoder is dependent
MD index for actual-value routing
The coding of the machine data index [n] for actual-value routing is:
[Encoder no.]
0 For first encoder
1 For second encoder
Examples of setpoint/actual-value routing
SINUMERIK 840D/810D with SIMODRIVE 611 digital
For machine axis "X1", the setpoint should be output digitally and actual values acquired on
drive module 4 (4th slot = index [3]).
The "logical drive number" of this module is 7.
Encoder number: 1, 2
Therefore, actual values are acquired via a direct and indirect measuring system.
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