Actual Speed Values - Siemens SINAMICS DCM Operating Instructions Manual

Furthermore, for both encoders the encoder control word and the encoder status word
according to PROFIdrive are available. (See function diagrams 4720, 4730 and 4735 in the
SINAMICS DCM List Manual.)
PROFIdrive V4.1 is the PROFIBUS profile for drive technology with a wide range of
applications in production and process automation systems.
Note
PROFIdrive for drive technology is standardized and described in the following document:
• PROFIdrive – Profile Drive Technology
PROFIBUS User Organization e. V.
Haid-und-Neu-Straße 7, D-76131 Karlsruhe, Germany
http://www.profibus.com
• IEC 61800-7
10.13.1

Actual speed values

The calculation of the actual speed value can be seen in the following function diagrams:
● FP4710 (for encoder 1)
● FP4711 (for encoder 2)
The actual speed values of the encoders are always available as freely interconnected
BICO outputs.
● r0061[0]: Actual speed value for encoder 1
● r0061[1] = r3370: Actual speed value for encoder 2
If you want to use an actual speed value from the encoder as an actual-value input for the
speed controller, you need to set the actual speed value selection p50083 to 1 (for
encoder 1) or to 5 (for encoder 2). See FP6810.
The maximum speed (i.e. the 100% speed) is set via p2000 in both cases.
Actual position values
G1_XIST1
G1_XIST2
Gn_XIST2
G2_XIST1
G2_XIST2)
For description, refer to Chapter "Control and status words for encoders (Page 392)".
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A
Encoder 1 actual position value 1
Encoder 1 actual position value 2
Fault code
Encoder 2 actual position value 1
Encoder 2 actual position value 2
Descriptions of functions
10.13 Encoder evaluation
535