Siemens SINAMICS DCM Manual page 493

Descriptions of functions
10.6 Communication via SINAMICS Link
3. Insert the DCC plan for the speed control at the CU320-2:
– Ensure that the technology package is available on the CU320-2.
– Create the DCC chart and generate the following chart
Figure 10-48 DCC chart
The values set in this example for LU, LL, TV, TD of the ramp-function generator and LU,
LL, KP, TN of the PI controller must be appropriately adapted. The inputs and outputs of
the DCC blocks must be correspondingly defined as BICO and interconnected with the
corresponding parameters according to the diagram.
4. Define the send data (SINAMICS DCM):
– Define the PZD to be sent for the SINAMICS DCM:
– Assign this PZD to the send buffer (p8871) of its own DO:
– This means that you have defined the position of the data in the 16-word telegram of
5. Define the receive data (SINAMICS DCM):
– Define that receive buffer 0 should be filled with data from CU320-2:
– Define that PZD 1 of CU320-2 should be saved in this buffer:
6. Define the send data (CU320-2):
– For the CU320-2, define the PZD to be sent:
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DO2 p2051.0 = r0898
DO2 p2051.1 = r0899
DO2 p2051.2 = r52211
DO2 p2051.3 = r52013
DO2 p8871.0 = 1 (SINAMICS Link send PZD 0 = DO2 p2051.0)
DO2 p8871.1 = 2 (SINAMICS Link send PZD 1 = DO2 p2051.1)
DO2 p8871.2 = 3 (SINAMICS Link send PZD 2 = DO2 p2051.2)
DO2 p8871.3 = 4 (SINAMICS Link send PZD 3 = DO2 p2051.3)
the drive unit.
DO2 p8872.0 = 2
DO2 p8870.0 = 1
DO1 p2051.0 = r21530 (output of the DCC closed-loop control)
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SINAMICS DCM DC Converter
Operating Instructions, 02.2015, A5E34763375/RS-AA/001