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jromanAug 14, 2025
How to troubleshoot F3x101 error (zero mark failed) on Siemens SINAMICS S120 DC Drives?
- AamclaughlinAug 14, 2025
To troubleshoot the F3x101 error (zero mark failed), verify that the connection assignment is correct. Specifically, check if A is interchanged with –A or B is interchanged with –B.