Siemens SINAMICS S120 Manual page 220

DC link components
5.1 Braking Module
Layout
The Braking Module in chassis format is inserted in a mounting location inside the Basic Line
Modules, Smart Line Modules, Active Line Modules, or Motor Modules, the fan of which
ensures forced cooling. The supply voltage for the electronics is drawn from the DC link. The
Braking Module is connected to the DC link by means of the busbar sets and flexible cables,
which are supplied as standard.
The activation threshold of the Braking Module can be adjusted by means of a DIP switch.
The braking power values specified in the technical specifications apply to the upper
activation threshold.
The Braking Module has as standard, the following interfaces:
● The DC link is connected through busbars and flexible cables
● Connecting terminal for external braking resistor
● 1 digital input (inhibit Braking Module with high signal / acknowledge error with negative
● 1 digital output (Braking Module inhibited)
● 1 DIP switch for adjusting the activation threshold
Note
Installing a Braking Module of frame size GX in a Basic Line Module of frame size GB or GD
To install a frame size GX Braking Module in a frame size GB or GD Basic Line Module a
cable harness set is required, which is available under order number 6SL3366-2NG00-0AA0.
218
edge high-low)
Manual, (GH3), 01/2013, 6SL3097-4AE00-0BP3
Chassis power units