F108-105
Internal processing fault PROFIsafe
SEW Eurodrive · MOVIDRIVE MDX60B/61B Variable Speed Drive
What does F108-105 mean?
An internal processing fault occurred related to the PROFIsafe functionality within the DCS..B option. This indicates a problem with the safety communication protocol or its implementation.
Source: SEW Eurodrive MOVIDRIVE MDX60B/61B Variable Speed Drive
Open Manual (Page 210)