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Rockwell Automation Publication 2198-UM002E-EN-P - February 2018
Appendix C
Size Multi-axis Shared-bus Configurations
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.
Drive/motor
performance specifications and torque/speed curves are also available in the
Kinetix 5700 Drive Systems Design Guide, publication
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.
For best results, use the Motion Analyzer system sizing and selection tool,
available at
https://motionanalyzer.rockwellautomation.com.
Calculate Total System 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 DC-bus power 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.