Siemens Sinamics S120 Function Manual page 757

Figure 12-20 Drive line-up (chassis) with identical pulse frequencies
Drive line-up comprising four Motor Modules in the chassis format with different pulse frequencies
It is advantageous to connect Motor Modules with different pulse frequencies to different
DRIVE-CLiQ sockets of the Control Unit. They may also be connected at the same DRIVE-
CLiQ line.
In the following diagram, two Motor Modules (400 V, output ≤ 250 kW, pulse frequency
2 kHz) are connected to interface X101 and two Motor Modules (400 V, output > 250 kW,
pulse frequency 1.25 kHz) are connected to interface X102.
Note
This topology does not match the topology created offline by STARTER and must be
changed manually.
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Basic information about the drive system
12.10 Rules for wiring with DRIVE-CLiQ
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