4.6.3
Project planning of control voltage
Control voltage for drive systems
Some components of a drive system have to be supplied with control voltage.
When doing the project planning for control voltage supply, include the drive
system component requirements:
●
Depending on the motor cable length and whether or not motor holding
brakes are used, the permitted tolerances of the supply voltage
●
Power consumption of the drive controllers
●
Power consumption of other loads (e.g., motor holding brakes, digital
outputs)
●
Current carrying capacity of the connection point for control voltage sup‐
ply on the component for the purpose of looping through the control volt‐
age to other components
Sizing the control voltage supply
Determining the power requirements
Drive controller power require‐
ments
The total power requirements of the control voltage supply of a drive control‐
ler result from the sum of the following power values:
●
Basic device (drive controller without connected encoders)
●
Optional connection interfaces (e.g., communication, additional encoder
evaluation)
●
Connected encoder systems
●
External loads
See the type plate and type code for configuring your drive controller.
The tables below contain the individual power values required by the drive
controller. The power requirement of the supplying 24 V power supply unit re‐
sults from the sum of these individual power values.
Basic device power requirements
The power requirements of the basic device result from
●
Maximum current of drive controller
●
Inrush current of drive controller
●
Control section design (data: see Project Planning Manual for control
section)
Bosch Rexroth AG
DOK-INDRV*-HXX05******-PR02-EN-P
98/407
Rexroth IndraDrive ML Drive Systems with HMU05
Combining the individual components
