Braking Module Booksize Compact; Description - Siemens SINAMICS S120 System Manual

6.2

Braking Module Booksize Compact

6.2.1

Description

The Braking Module Booksize Compact is always used together with a braking resistor. It
has the following tasks:
● Controlled stop of the drives in the event of a power failure
(e.g. emergency retraction or EMERGENCY OFF Category 1).
● Limit the DC link voltage for brief generator operation, e.g. if the energy recovery
capability of the Line Module is deactivated or is not adequately dimensioned.
The Braking Module includes the necessary power electronics and control. When the module
is in operation, the power which is fed back into the DC link is dissipated via an external
braking resistor.
The Braking Module can be operated on 200 V or 400 V line supply systems; the 4-pin DIP
switch on the top of the module is used to select which one applies in each case. The factory
setting is 400 V.
When spacers (6SL3462-1CC00-0AA0) are used, the Braking Module Booksize Compact
can be integrated into a drive line-up in booksize format with internal air cooling.
External braking resistors
Braking resistors can be operated with and without thermostatic switch at the Braking
Module Booksize Compact. The DIP switch sets the type of braking resistor being used in
each case. The factory setting is "braking resistor with a thermostatic switch".
The cable length between the Braking Module and the braking resistor is limited to 10 m.
High Frequency Drive
System Manual, (SH2), 04/2015, 6SL3097-4AH10-0BP3
Braking Modules
6.2 Braking Module Booksize Compact
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