Rockwell Automation Publication 2198-UM002L-EN-P - October 2021 373
Appendix C
Size Multi-axis Shared-bus Configurations
This appendix provides information and examples for sizing your
Kinetix® 5700 drive system power supplies and inverters in multi-axis shared-
bus configurations.
Shared DC-bus
Configurations
You can supply power to your Kinetix 5700 shared DC-bus system
configuration from following sources:
•Single 2198-Pxxx DC-bus power supply
• Multiple 2198-P208 DC-bus power supplies (up to three are possible)
•Single 2198-RPxxx regenerative bus supply
• Multiple 8720MC-RPS regenerative power supply
Shared DC-bus Definitions
Throughout this manual, these terms are used to describe how drive modules
are grouped together.
Topic Page
Shared DC-bus Configurations 373
System Sizing Guidelines 375
System Sizing Example 381
System Sizing Application Example 382
Table 181 - Shared-bus Terminology
Term Definition
DC-bus group Drive modules that are all connected to the same DC bus.
Cluster
Group of power supply and/or drive modules that are directly connected together via
Kinetix 5700 DC bus-bars only.
Extended cluster
Group of drive modules that are directly connected together via Kinetix 5700 DC bus-bars
and connected to the power supply cluster via customer-supplied DC-bus cable.
Power supply cluster The cluster that contains the AC to DC converter (power supply).
Extended DC-bus
When 2 drive clusters are part of the same DC-bus group joined by the DC bus-bars and
customer-supplied DC-bus cable.
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