Dear,

expert

i got some problem with Simovert VC drives .during running drive does speed vary and i tested Ecoder  found ok and sometimes shown F021. How can i optimise and autotune that drives. Regards

Hello,

Which is control mode, V/F or vector control? Have you checked the current drawn by motor? F021 is parameterized limit value of the I2t monitoring for the motor has been exceeded. Check r009 motor temp.

Please see attached sheet for quick parametrization & motor identification.