The parallel connection of the braking resistors causes derating/
reduction of power of the continuous braking resistor power to the
factor 0.8.
Supply via at least two devices
Use this type of DC bus coupling if you use different HCS01 device types in
your application.
Components marked with gray background color: Optional, de‐
pending on the application; the choke is used to reduce current
harmonics
A Component HCS01 (more powerful than component B; all
components A identical); connected to supply mains via bal‐
ancing chokes; connected to other components via DC bus
B Component HCS01 (less powerful than component A); connec‐
ted to other components via DC bus
Bb Bb relay contact wiring
M Module bus
Fig. 4-31: Group Supply; Several HCS01 Components Connected to Supply
Mains
Features
● The supplying devices
3) 4)
have to be of the same type. The following de‐
vices are suited as supplying devices:
– HCS01.1E-W0028
– HCS01.1E-W0054
● DC bus continuous power of the supplying devices reduced by parallel
operation
● Energy compensation between the devices is possible (the DC bus ca‐
pacitors of the devices are connected in parallel)
● Balancing of the integrated braking resistors exists (equal load of all
braking resistors integrated in the devices)
● Balancing chokes or balancing resistors required in supply feeder
● It is possible to connect DC bus capacitor units
● Wiring effort for the mains connection relatively small
● It is possible to use a common mains contactor, as well as a common
mains filter
● DC bus short circuit functionality has to be realized externally, if required
3)
Supplying devices are devices connected to the mains which supply power to oth‐
er devices via a DC bus connection
4)
Supplied devices are devices not connected to the mains which are supplied with
power by the supplying devices via a DC bus connection
DOK-INDRV*-HCS01******-PR05-EN-P Bosch Rexroth AG 107/341
Rexroth IndraDrive CsDrive Systems with HCS01
Combining the individual components
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