Siemens A028 fault code meaning
Siemens / A028
Series: 6RA70
Motor
DC drive
Meaning: Overheat (valid in all run statuses). When parameter P498=1 (temperature switch connected): The alarm corresponds to a logic “0” signal at terminal 214 (for longer than 10s). Possible causes: The temperature switch monitoring the motor temperature has responded; the encoder cable is broken.
Possible causes
Source: 6ra70_c P440