Safe Brake Control (Sbc) - Siemens SINAMICS S210 Operating Instructions Manual

Safety functions integrated in the drive
4.1 Basic Functions
4.1.3

Safe Brake Control (SBC)

Overview
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Functional features
You must enable the function when commissioning in order that SBC can become active.
Note
You cannot select SBC as an autonomous function: SBC is activated (if enabled) immediately
upon selection of STO.
Applications
Use SBC in applications where the drive must maintain a safe position, even when the motor
is in a no-current condition. SBC thus prevents suspended or passing loads from dropping (e.g.
for lifting gear, passenger elevators, winders). No external logic or switching elements required,
as the functionality is completely integrated in the drive.
Note
Condition of the motor holding brake
SBC is not able to identify as to whether a holding brake is mechanically worn or is a defective.
As a consequence, observe the maximum permissible number of emergency braking
operations for the motor holding brake being used.
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The "Safe Brake Control" function (SBC) is
used to safely control the motor-integrated
holding brake, which operates according to the
closed-circuit principle.
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SINAMICS S210 servo drive system
Operating Instructions, 01/2019, A5E41702836B AC