This generally means that the Inverter is in closed-loop vector and the encoder feedback is missing or reversed. Ensure that you have feedback is present on the motor and drive if you are not running in V/Hz mode.
7NOV2016 LS
14MAY2019 JD
This generally means that the Inverter is in closed-loop vector and the encoder feedback is missing or reversed. Ensure that you have feedback is present on the motor and drive if you are not running in V/Hz mode.