text: <s>[INST] PowerFlex 750 DC Bus sharing Hello everyone, I want to use 2 Powerflex 750 stand-alone dc AC Drives in Shared DC Bus Configuration mode. The first driver is used to turn a large drum and when the supply voltage is cut off, it takes 20-25 minutes for the drum to stop. I want to continue energizing the 2nd drive from the DC bus for a portion of the time until the drum stops. The first drive goes to fault because its power is cut off and ends the DC bus sharing. What are the parameters that need to be changed for this application? [/INST] Hello Kivanc, the drive fault history can be viewed on the HIM - do you see any faults there? Brian \\n </s>