Siemens SINAMICS S120 - Braking Module Booksize; Description

DC link components
8.2 Braking Module Booksize
Booksize Power Units
Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8
487
Note
Malfunctions due to polluted DRIVE-CLiQ interfaces
Malfunctions can occur in the system through the use of polluted DRIVE
-CLiQ interfaces.
•
Cover unused DRIVE-CLiQ interfaces with the supplied blanking covers.
8.2
Braking Module Booksize
8.2.1
Description
The Braking Module Booksize is always used together with an external braking resistor. It
has the following tasks:
● Specific stop of the drives in the event of a line failure
(e.g. emergency retraction or EMERGENCY OFF category 1).
● Limit the DC link voltage for brief periods of generator operation (e.g. if the regenerative
feedback capability of the Line Module 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
Braking resistors without thermostatic switch 6SN1113-1AA00-0DA0 (P
N
= 0.3 kW) and
6SL3100-1BE31-0AA0 (P
N
= 1.5 kW) can be operated at the Braking Module Booksize.
The cable lengths between the Braking Module and braking resistor is limited to a maximum
of 10 m.
The scope of delivery of the braking resistor 6SN1113-1AA00-0DA0 includes a shielded
connection cable (3 m, 3 x 1.5 mm
2
).