Siemens 144 fault code meaning

Series: SIMODRIVE 611U

Switching-in/switching-out MDI erroneous

servo drive

Meaning: In the active traversing program, MDI was switched-in or, in the active MDI block, MDI was switched-out.

Possible causes

Source: SIMODRIVE 611 universal Function Manual FBU 05/2010 (EN, Siemens official site) 7.3