Mains Connected Load And Mains Current; Technical Data Of The Components; Calculating The Mains-Side Phase Current - Bosch Rexroth IndraDrive CsDrive System with HCS01 Project Planning Manual

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Rexroth IndraDrive CsDrive Systems with HCS01

Mains connected load and mains current

Operation under rated conditions
Operation at partial load
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); con‐
nected 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. 4-26: Parallel operation
Connect the Bb relay contacts of all supplying components in ser‐
ies. You thereby ensure that the mains contactor is switched off in
case there is an error in a component.

Technical data of the components

● See chapter 7.3.2 "Mains voltage" on page 233
● See chapter 7.3.3 "DC bus" on page 240

Calculating the mains-side phase current

The mains-side phase current is required for the following cases:
● Selecting mains contactor
● Determining fuses in the mains connection
● Determining line cross section
● Selecting other components in the mains connection (mains filter, mains
choke)
For data on mains contactor, fuses and cross section in operation under rat‐
ed conditions, see technical data of the respective component.
Operation at partial load can lead to smaller mains contactors, fuses and line
cross sections.
If defined data for operation at partial load are available, the mains-side
phase current can be determined as follows:
1. Determine motor power
Take power of drive controller-motor combination from Rexroth Indra‐
Size or calculate it.
Bosch Rexroth AG
Combining the individual components
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