SIEMENS
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Siemens D 31 · 2015
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Function
Highlights
Safety Integrated
Safe Brake Relay, Safe Brake Adapter
The following is required for Safe Brake Control (SBC):
•
A Safe Brake Relay for power units in blocksize format
•
A Safe Brake Adapter for power units in chassis format
The Safe Brake Control is integrated in power units in booksize
format.
The Safe Brake Relay/Safe Brake Adapter and the brake control
that is integrated in the booksize format allows safe control of
electro-mechanical motor brakes.
The Safe Brake Relay controls a 24 V DC brake; the Safe Brake
Adapter controls 230 V AC brakes. When the STO function is ac-
tive, the Safe Brake Relay safely closes the connected brake.
The SBC function monitors the control of the brake, however, not
its mechanical functioning.
The inverter controls the connected brake using the motor hold-
ing brake function.
External surge suppressors are not required. The cable har-
nesses for connection to the Power Module are included in the
scope of supply.
With the Safe Brake Relay/Safe Brake Adapter functions, the
brake is controlled in accordance with IEC 61508 SIL 2 and
EN ISO 13849-1 PL d and Category 3.
Safe Brake Relay
Safe Brake Adapter
© Siemens AG 2014