What might be causing the "M109-Y axis front limit abnormality (X7)" error code M of KM-ASSYM3-05 machine code with error id 40? Also, what is the purpose of X7 in the code, and what other error codes are
The M109-Y axis front limit abnormality (X7) error occurs when the Y-axis position or velocity exceeds the front limit, which can be caused by a damaged Y-axis motor or a faulty limit switch