Braking Module Booksize; Description - Siemens SINAMICS S120 Combi Equipment Manual

7.2

Braking Module Booksize

7.2.1

Description

The Braking Module is used together with an external braking resistor for the following
applications:
● For a power failure, the S120 Combi and expansion axes can be stopped in a controlled
fashion (e.g. emergency retraction or EMERGENCY OFF Category 1).
● For brief generator operation, the DC link voltage can be limited, e.g. if the energy
recovery function is deactivated or is not adequately dimensioned.
The Braking Module includes the necessary power electronics and control. When the
Braking Module is in operation, the power which is fed back into the DC link is dissipated via
an external braking resistor.
External braking resistors
On the Braking Module, braking resistors can be operated without thermostatic switches
6SN1113-1AA00-0DA0 (P
The cable length between the Braking Module and the braking resistor is limited to a
maximum of 10 m.
A shielded connection cable (3 m, 3 x 1.5 mm
1AA00-0DA0.
SINAMICS S120 Combi
Manual, (GH9), 07/2016, 6SL3097-4AV00-0BP5
= 0.3 kW) and 6SL3100-1BE31-0AA0 (P
N
) is supplied with braking resistor 6SN1113-
2
DC link components
7.2 Braking Module Booksize
= 1.5 kW).
N
175