Siemens SINAMICS S120 Function Manual page 779

In the following example, two Control Units control the drives connected to the same DC link.
The source for the "Infeed operation" signal is a digital input in the example.
Figure 12-3
Overview of important parameters (see SINAMICS S120/S150 List Manual)
• r0722
• r0863.0...2
• p0864
Drive functions
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Example: interconnection with more than one Control Unit
CO/BO: CU digital inputs, status
CO/BO: Drive coupling status word / control word
BI: Infeed operation
12.3 Control Units without infeed control
Applications
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