WEG CFW300 VFD failure on surface grinder
Is this a common fault? The VFD is just over 2 years old and appears to have failed. It spins the motor up no problem but appears to indicate an output frequency of 60 Hz (contrary to the programmed settings) and has an intermittent fault on the screen. I've tried reseating the internal interconnect between the display and main board but the fault remains.