Siemens F028 fault code meaning

Series: 6RA70

Motor overheat

DC drive

Meaning: (Valid in operating status ≤ o6.) When parameter P498=2 (temperature switch connection), the fault message signal at terminal 214 is at logic "0" for longer than 10 s. Possible fault causes: The temperature switch monitoring the motor temperature has responded. Open circuit in the encoder cable. Motor overheat (valid in all operating statuses). Selected via P493=2 or 3 (temperature sensor at terminals 22 / 23) or P494=2 or 3 (temperature sensor at terminals 204 / 205). When parameter P490.01=1 (KTY84 at terminals 22 / 23) or P490.02=1 (KTY84 at terminals 204 / 205): The fault message is valid if the motor temperature reaches or exceeds the value set in parameter P492. When parameter P490.01=2, 3, 4 or 5 (PTC thermistor at terminals 22 / 23) or P490.02=2, 3, 4 or 5 (PTC thermistor at terminals 204/ 205):

Possible causes

Source: 6ra70_c P423