Bulletin 20S SCR Bridge is a non-regenerative DC bus supply that supplies power to AC drives that have a common DC bus input. The supply converts incoming three-phase AC line voltage to a common DC bus voltage. You can configure this supply for stand-alone and master-slave applications.
Common Bus Power Supplies
Common Bus Power Supplies use a common rectifier to supply power to the DC bus for all the DC-AC inverters. Power-sharing on the DC bus increases the efficiency of applications where inverters are motoring while others in the same process are generating power.
Rockwell Automation announces that as of November 2019, our Bulletin 700AFE Active Front End (AFE) regenerative DC bus supply will be discontinued and no longer available for sale. Customers are encouraged to migrate to our PowerFlex 755TM Drives.