Dc Link Components; Braking Modules As An Option For A Motor Module Or A Line Module; Central Braking Modules - Siemens SINAMICS S120 Equipment Manual

Line Connection Module
Figure 2-9
Line Connection Module
Figure 2-10
2.5

DC link components

Braking Modules enable braking resistors to absorb the regenerative energy produced
during drive deceleration, which is then converted into heat.
A Braking Module and braking resistor are required only if the drives need to be decelerated
in a controlled manner after a power failure (i.e. when energy cannot be fed back to the
supply).
2.5.1

Braking Modules as an option for a Motor Module or a Line Module

For smaller drive 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.
2.5.2

Central Braking Modules

For larger braking powers, separate Central Braking Modules are available. These modules
are implemented centrally in the drive line-up. To increase the braking power, up to four
Central Braking Modules can be connected in parallel.
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A
Active
Interface
Circuit breaker
Module
Line Connection Module with Active Interface Module and Active Line Module > 800 A
Circuit breaker
Active
Interface
Module
Line Connection Module with Active Interface Modules and Active Line Modules
connected in parallel
Active Line
Module
=
Motor
Module
M
3
=
Motor
Module
Active
Line
M
Module
3
System overview
2.5 DC link components
27