Automatic Device Configuration, or ADC, is a feature in Version 20 of RSLogix 5000 software and Version 21+ of Studio 5000 software, that will allow the replacement and configuration of PowerFlex VFDs without the need for scheduling a technician to perform the startup. Using this feature reduces the delay in scheduling the start-up and getting the technician to the and will have the customer back in production, reducing the dollars lost to downtime.
Say a drive with IP address 192-168-10-01 is running normally with the correct parameters. Production is high and the customer is happy. Suddenly, there is an issue upstream of the VFD that causes it to fail. Repairs are made and the VFD is energized During startup there is no drive communication between the PLC on IP address 192-168-10-01 and the PLC shows a failure. The Maintenance Electrician troubleshoots and finds that the VFD has failed, but there is a replacement in the stockroom. He removes the failed VFD and replaces it with the new one. Once the PLC sees that there is a new unit installed with no IP address the ADC feature will trigger and the PLC to upload the saved VFD configuration data to the new drive. Once the new VFD has been configured by the PLC, the VFD can be given a run command and the customer can continue manufacturing.
By adding this ADC feature, the Maintenance Electrician has avoided a 6 to 24-hour shutdown. The ADC upload takes a mere 20-30 minutes. This is a huge time savings for the customer, and it is built in to every PowerFlex 525, 753 and 755 VFDs.
ADC is not an automatic VFD feature. It needs to be enabled in the Studio 5000 software that will monitor any changes in the drive software. Without performing this change in the PLC, ADC will not work when a new VFD is installed.