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Rockwell Automation Publication 2198-UM002E-EN-P - February 2018
Appendix C
Size Multi-axis Shared-bus Configurations
System Sizing Application
Example
This example shows how to size the DC-bus power supply for your multi-axis
system by using the motor output power (kW). Sizing is based on the largest
motor kW value in your drive system.
The Kinetix 5700 drive modules are zero-stacked and use the shared-bus
connection system to extend power from the 2198-P
xxx
DC-bus power supply
to multiple drive modules. For best results, use the Motion Analyzer system
sizing and selection tool, available at
https://motionanalyzer.rockwellautomation.com.
Table 151 - DC-Bus Power Supply Continuous Output Power
In this typical system, all axes are running in an asynchronous rapid
acceleration/deceleration motion profile. Use this formula to calculate the
minimum continuous output-power (kW) for your Kinetix 5700 drive system:
2198-P
xxx
= Largest motor-rated kW x (axis-count x 0.6) + (axis-count x 0.2)
Table 152 - Motor/Drive System Example
Continuous Output Power, min (kW) = 7.2 x (8 x 0.6) + (8 x 0.2)
kW = 7.2 x 4.8 + 1.6
kW = 36.16
In this example, the MPM-B2153F motor has the largest motor-rated output.
As a result, the minimum continuous output-power = 36.16 kW, and the 2198-
P208 DC-bus power supply is required for the 8-axis system example.
DC-Bus Power Supply
Cat. No.
Continuous Output Power
kW
2198-P031
7
2198-P070
17
2198-P141
31
2198-P208
46
Motor
Quantity
Motor Cat. No.
Motor Rated Output
(1)
kW
(1) For more motor specifications, see the Kinetix Rotary Motion Specifications Technical Data, publication
.
Drive Cat. No.
1
MPM-B2153F
7.2
2198-S086-ERS
x
1
2198-S086-ERS
x
1
MPL-B660F
6.1
2198-S086-ERS
x
1
2198-S086-ERS
x
2
VPL-B0753
0.82
2198-D020-ERS
x
2
2198-D020-ERS
x
8 = axis count