Siemens SINAMICS G130 - Safe Brake Adapter SBA 230 V AC for SINAMICS G130;SINAMICS S120 Chassis

Controlling the safety functions
5.4 Activating "SBC" via the Safe Brake Adapter
Safety Integrated
92 Function Manual, 08/2023, A5E03264275A
5.4.2 Safe Brake Adapter SBA 230 V AC for SINAMICS G130/SINAMICS S120
Chassis
Description
The Safe Brake Control (SBC) is a safety function which is used in safety-related applications,
e.g. in presses or in rolling mills. In the no-current state, the brake acts on the motor of the
drive using spring force. The brake is released when current flows (=low active).
Power must be connected to terminal -X12 on the Safe Brake Adapter.
For controlling the brake, a connection must be established between terminal -X14 on the
Safe Brake Adapter and the rectifier of the brake.
For the control, a connection must be established between the Safe Brake Adapter and the
Control Interface Module.
The cable harness with article number 6SL3060-4DX04-0AA0 can be used.
Fast de-energization
Some brake rectifier types feature two additional connections for switching the brake load on
the DC side. This allows the brake coil to be quickly de-energized, i.e. the braking effect starts
earlier.
The Safe Brake Adapter supports such fast de-energizing using the two additional
connections -X15:1 and -X15:2. This function does not belong to safe brake control.
Note
Determination of the time until the brake engages without fast de
-energization
As the fast de
-energization is not part of the safety function, this functionality is not
monitored. The fast de
-energization can therefore fail during operation without being
n
oticed.
Therefore, to determine the time until the brake closes for a machine acceptance, the fast de
-
energization must be bypassed by short-circuiting the terminals at -X15:1, 2.