Siemens SINAMICS S120 Commissioning Manual page 29

Figure 1-7
Drive line-up comprising four Motor Modules (chassis) with different pulse frequencies
Motor Modules with different pulse frequencies must be connected to different DRIVE-CLiQ
interfaces on the Control Unit.
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.
Commissioning
Commissioning Manual, (IH1), 07/2007 Edition, 6SL3097-2AF00-0BP7
Drive line-up (chassis) with identical pulse frequencies
Preparations for Commissioning
1.5 Rules for wiring with DRIVE-CLiQ
29