Select Drive/Motor Combinations; Select The Power Supply And Define The Dc-Bus Groups; Calculate System And External-Bus Capacitance - Allen-Bradley Kinetix 5700 User Manual

Appendix C Size Multi-axis Shared-bus Configurations
394

Select Drive/Motor Combinations

The motor required for a particular application determines the servo drive
required for full motor performance.
For best results, use the Motion Analyzer system sizing and selection tool,
available at https://motionanalyzer.rockwellautomation.com.
performance specifications and torque/speed curves are also available in the
Kinetix 5700 Drive Systems Design Guide, publication KNX-RM010.

Select the Power Supply and Define the DC-bus Groups

• Determine the converter DC-bus motoring and bus-regulation power
requirements based on the load profile.
• Estimate the net converter and inverter power and bus-regulator
capacity, based on the load profiles.
• Determine if 2198-CAPMOD-2240 capacitor modules are required.
• Determine if 2198-DCBUSCOND-RP312 DC-bus conditioner
modules are required.
For best results, use the Motion Analyzer system sizing and selection tool,
available at https://motionanalyzer.rockwellautomation.com.

Calculate System and External-bus Capacitance

Total system capacitance is the sum of all internal capacitance values from each
of the drive modules (single-axis inverters, dual-axis inverters, power supplies,
and capacitor modules) in the same DC-bus group.
The total system capacitance must be less than the maximum supported
DC-bus capacitance value of the power supply.
IMPORTANT If your total system capacitance value exceeds the maximum supported
capacitance value of the DC-bus power supply, perform one of the following:
• Increase the size of the 2198-Pxxx DC-bus power supply or 2198-RPxxx
regenerative bus supply
• Use multiple DC-bus power supplies (1...3 power supplies are possible)
Decrease the total system capacitance by removing inverters or capacitor
modules from the DC-bus group.
External bus capacitance is the total system capacitance minus the power
supply capacitance. The external bus capacitance must be entered into the
Logix Designer application for a regenerative power supply to maintain proper
control.
Rockwell Automation Publication 2198-UM002G-EN-P - February 2019
Drive/motor