Controlling the safety functions
5.4 Activating "SBC" via the Safe Brake Adapter
Safety Integrated
90 Function Manual, 07/2016, A5E03264275A
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.
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
-energization can therefore fail during operation without being noticed.
Therefore, to determine the time until the brake engages for a machine acceptance, the fast
de
-energization must be bypassed by short-circuiting the terminals at X15:1, 2.
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