Safe Brake Adapter Optional Module; Description - Siemens S120 Manual

Supplementary system components and encoder system integration

8.3 Safe Brake Adapter optional module

8.3 Safe Brake Adapter optional module
8.3.1

Description

The Safe Brake Adapter (SBA) is required to implement Safe Brake Control (SBC) in
conjunction with Power Modules in the chassis format.
The Safe Brake Control (SBC) is a safety function, that 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 (opened) when current flows through it (=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 motor holding brake.
For the control, a connection must be established between the Safe Brake Adapter and the
Control Interface Module.
The cable harness with order number 6SL3060-4DX04-0AA0 can be used.
Fast de-energization
In some cases, DC brakes are operated with an upstream brake rectifier (230 VAC input
side) for fast de-energization. Some brake rectifiers are equipped with two additional
connections for switching the brake load on the DC side. This allows the brake coil to be
quickly de-energized, i.e. braking starts earlier.
The Safe Brake Adapter supports such fast de-energization via the two additional
connections for X15.1 and X15.2. This function does not belong to the safe brake control.
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Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
AC Drive