Rexroth IndraDrive Calculations 15-13
DOK-INDRV*-SYSTEM*****-PR02-EN-P
Calculating Allowed Continuous Powers in Common DC Bus
By interconnecting the DC bus connections of several HCS02 and HLB01
drive controllers the regenerative power and continuous power generated
in the common DC bus is equally distributed to all IndraDrive C
components with braking resistor.
Distribution to the involved components takes place with high balancing
factor.
∑∑
+= f*)( ,,, HLBBDHCSBDdevicesBD PPP
PBD, devices : braking resistor continuous power that all devices at common
DC bus can process in continuous operation, in kW
PBD, HCS02: braking resistor continuous power that the drive controller can
process in continuous operation, in kW
PBD, HLB01: braking resistor continuous power that the additional braking
resistor module can process in continuous operation, in kW
f: balancing factor for parallel operation (see electrical data)
Fig. 15-33: Available braking resistor continuous power at common DC bus
∑∑
= f*, ZWdevicesZW PP
PZW, devices: available DC bus continuous power at common DC bus, in kW
P
ZW: DC bus continuous power of the individual devices, in kW
f: balancing factor for parallel operation (see electrical data)
Fig. 15-34: Available DC bus continuous power at common DC bus
See chapters "Electrical Data" and "Mains Connection" in the respective
Project Planning Manuals of the components.
For Central Supply and Group
Supply with DC Bus Connection
For Individual Supply and Group
Supply without DC Bus
Connection
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