Siemens SINAMICS S120 Commissioning Manual page 266

Diagnostics
5.3 Diagnostics via Startdrive
Figure 5-2 Example: Topology error for DRIVE-CLiQ connections
This is how you diagnose typical topology errors
Three typical error cases are shown in the following:
First error case: DRIVE-CLiQ connection on the interface of a DO not inserted
1. Position the cursor over the interface highlighted in red on the first drive object (in this
case, the Control Unit).
A tooltip is displayed. To open the tooltip, click on the black triangle.
The tooltip shows the target connection compared with the currently available connection
and a brief description of the error. For example, there is no connection between interface
X103 of the Control Unit and interface X500 of the TM31.
2. Display the tooltip of the partner port marked red on the TM31. The error describes that
there is no connection at interface X500 of the TM31.
Note
If several interface are marked red, starting from the left and moving to the right, check all
error descriptions using the tooltips.
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Commissioning with Startdrive
Commissioning Manual, 12/2018, 6SL3097-5AA10-0BP0