text: <s>[INST] Kinetix 5300 Fault - PWM Frequency Reduced Hello, When I trigger the MSO block of the Kinetix 5300 drive, I get the 'Physical Axis Fault - PWM Frequency Reduced' error after a short while, even if I do nothing. I couldn't find anything about this problem and its solution in the docs. Does anyone have information? [/INST] Hello Gamze, This is a very strange fault indeed, because you can't adjust the PWM, so it must be a protection . It seem that the system foldback due to an overtemperature... but never seen this before Some questions for you : Is it a new Drive ? Check the drive temperature (you can check the Drive Temp on the drive Web page.) did there is any load attached on the motor ? if yes disconnect the motor from the load. and test again Run an Hookup test load disconnected and them an autotuning Make also sure that you have the latest FW on the drive. What is the drive and Motor ref ? Regards \\n </s>