An application consisting of as few as two VFDs can benefit from a common DC bus. Sometimes called a shared bus, a common bus is established by simply interlinking the DC bus between VFDs via a fused connection (Figure 1). The key benefit of a common bus is the sharing and balancing. This approach offers users several advantages for applications with multiple AC drives especially when they are in a coordinated system typical for motion control and production lines. Although a common DC bus configuration is not new and took rise along with the DC to AC drive migration in the. Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. This manual is applicable with the ACS880-01 drives and ACS880-04 drive modules. Obey the safety instructions in the drive's hardware manual.
