DC Bus Under Voltage Error

Jeffalo · April 28, 2021, 7:44pm

I am trying to calibrate the motor and getting the Axis: DC_BUS_UNDER_VOLTAGE error. I checked the voltage plotter and it does not show it dipping below 23 V and the UNDER_VOLTAGE_LIMIT is set at 8 V. Does anyone have any ideas?

–Thanks,
Jeff

Wetmelon · April 30, 2021, 2:22am

You need a more powerful power supply, probably. What are you using to power the board?

towen · April 30, 2021, 4:43pm

I would also try shortening / twisting the wires to the power supply, and using ferrite rings on the motor outputs. Noise can cause this issue for me.

rkbeyl · May 7, 2021, 2:32pm

I had to bump up the calibration current, especially if trying to calibrate with a load.

cgregg · December 21, 2021, 11:36pm

Did this get any resolution? We are also having issues with DC_BUS_UNDERVOLTAGE errors (during operation, not calibration) and wondering if there were lessons learned here.