VFD Trip to 0%

That's a heck of a condition. It must be tired, feeling lazy at 0% it sleeps.

The Force is not strong with me today, so I cannot read your mind to see what the trip display on the VFD said. Please use your fingers to transmit additional data by typing it into the keyboard.

haha

Consider this: A VFD produces an output from nearly DC to frequencies much higher than you could possibly ever need.

Your motor is an AC device. As your VFD approaches 5% speed control, the output is effectively DC as far as the motor is concerned.

If you attempt to drive an AC motor with DC, the current will spike. I hope that explains what you need to know. If not, you should not be programming the VFD.

I believe VFD is controlled by 4-20mA signal from DCS.

Check signal corresponding to 0 dose not fall below 4 mA at VFD.

Calibration of DCS signal may be required.