Siemens A027 fault code meaning
Siemens / A027
Series: 6RA70
Airflow monitoring
DC drive
Meaning: (Valid when run status < o6) When parameter P497=1 (airflow monitoring): The alarm corresponds to a logic “0” signal at terminal 213 (for longer than 40s). Possible causes: The fan monitoring encoder has responded; the encoder cable is broken.
Possible causes
Source: 6ra70_c P440