Motor Modules; Auxiliary Power Supply Modules - Siemens SINAMICS S120 Manual

Figure 2-5
2.5

Motor Modules

The Cabinet Modules are fitted with one SINAMICS S120 Motor Module in the chassis
format and cover the power range from 90 kW to 1500 kW (380 V to 480 V or 500 V to 690
V).
Power ratings up to approximately 5700 kW are possible by connecting units in parallel.
The Motor Modules can also be used as braking module (braking chopper) if a 3-phase
braking resistor is connected instead of a motor.
For more detailed information on this topic, please refer to the SINAMICS Low Voltage
Configuration Manual.
2.6

Auxiliary Power Supply Modules

Auxiliary Power Supply Modules supply power to the auxiliary power supply system of the
SINAMICS S120 Cabinet Modules.
The additional heat exchangers installed in the Cabinet Modules are some of the devices
connected to this auxiliary power supply system. In addition, the auxiliary power supply
system supplies the electronic modules with an external 24 V DC voltage. This is required
when the DC link is not charged, for instance, in order to maintain PROFIBUS or PROFINET
communication.
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
Active Line Connection Module with Active Interface Module and Active Line Module
>800 A
System overview
2.5 Motor Modules
29