Dc Link Components; Braking Modules As A Line Module Or Motor Module Option; Motor Modules; Booksize Base Cabinets With Booksize Cabinet Kits - Siemens SINAMICS S120 Device Manual

System overview

2.5 DC link components

2.5 DC link components
Braking Modules are used so that the regenerative energy, which is produced when drives
brake, can be converted into heat using braking resistors.
Using a Braking Module and braking resistor it is possible to brake motors even when the
power fails.
2.5.1

Braking Modules as a Line Module or Motor Module option

For lower braking powers, Braking Modules are available with continuous braking powers up
to 50 kW. These Braking Modules are available as option L61/L64 (25 kW) or L62/L65 (50
kW) for Basic Line Modules, Smart Line Modules, Active Line Modules or Motor Modules.
2.6

Motor Modules

There are two different types of Motor Modules available with the SINAMICS S120 Cabinet
Modules drive system.
2.6.1

Booksize Base Cabinets with Booksize Cabinet Kits

Motor Modules at the low end of the power range 5 to 100 HP (4.8 to 71 kW) are designed
as Booksize Cabinet Kits installed in Booksize Base Cabinets.
2.6.2

Chassis Cabinets

Chassis Cabinets are each fitted with one SINAMICS S120 Motor Module in chassis format
and cover the 75 to 1250 HP (75 to 1200 kW) power range.
Higher powers can be achieved by connecting the Motor Modules in parallel.
2.7

Auxiliary Power Supply Modules

Auxiliary Power Supply Modules supply power to the auxiliary power supply system of the
SINAMICS S120 Cabinet Modules.
The fans of the SINAMICS S120 devices 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 example, in order to maintain PROFIBUS
communication.
32
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A