Shared Bus - Single Supply, Multiple Bleeder, Floating Bus

Consider a typical 3-axis gantry robot application in a shared bus configuration with the following:

	X Axis	Inverter module
	Y Axis	Line rectifier power module with an uncontrolled bus Inverter module Internal bleeder module Supplies the bus power for all axes
	Z Axis	Inverter module
	External bleeder module

System supply power	The total power the servo system draws or regenerates to the supply connection > 0 is supply < 0 is regenerative
Bus supply power	The supply power to the bus from the infeed section of a drive > 0 is supply < 0 is regenerative
Bleeder power	The bleeder power distributed to each enabled bleeder on the bus When there is more than one bleeder, the user has the option to specify if the total bleeder power is: Divided equally among all bleeders Divided proportionally to each bleeder’s continuous power rating (as shown above, where the external bleeder module’s continuous rating is much greater than the Y Axis internal bleeder’s continuous rating)
Bus stored energy	The stored bus energy at any point in time in the cycle
Bleeder energy	The total energy dissipated by all bleeders in the system. Shown to illustrate the amount of energy dissipated relative to the total energy capacity of the bus.
Inverter power	The inverter power to and from the motor > 0 is motoring < 0 is generating