Siemens A031 fault code meaning
Siemens / A031
Series: 6RA70
Speed controller monitoring
DC drive
Meaning: (Valid in operating states – –, I, II) The monitoring function responds if the difference between the connectors selected by P590 and P591 (factory setting: deviation between the speed controller reference and actual value) exceeds the value set in parameter P388 for longer than the time set in parameter P390. Possible causes: Control circuit open; controller not optimized; P590 or P591 incorrectly parameterized.
Possible causes
Source: 6ra70_c P440