Safe Brake Control (Sbc) - Siemens SINAMICS S120 Function Manual

Safety Integrated basic functions

9.5 Safe Brake Control (SBC)

Status for "Safe Stop 1"
The status of the "Safe Stop 1" function is displayed using the following parameters:
● r9772 CO/BO: SI status (Control Unit)
● r9773 CO/BO: SI status (Control Unit + Motor Module)
● r9774 CO/BO: SI status (Safe Torque Off group)
● r9872 CO/BO: SI status (Motor Module)
Alternatively, the status of the functions can be displayed using the configurable messages
N01621 and N30621 (configured using p2118 and p2119).
Overview of key parameters (see SINAMICS S List Manual)
● see "Safe Torque Off" function
● p1135 OFF3 ramp-down time
● p9652 SI Safe Stop 1 delay time (Control Unit)
● p9852 SI Safe Stop 1 delay time (Motor Module)
9.5 Safe Brake Control (SBC)
Description
Safe brake control is used to activate holding brakes that function according to the standby
current principle (e.g. motor holding brake).
The command for releasing or applying the brake is transmitted to the Motor Module/Power
Module via DRIVE-CLiQ. he Motor Module/Safe Brake Relay then carries out the action and
activates the outputs for the brake.
Brake activation via the brake connection on the Motor Module/Safe Brake Relay is carried
out using a safe, two-channel method.
Note
Chassis components do not support this function.
Note
To ensure that this function can be used for Power Modules Blocksize, a Safe Brake Relay
must be used (for more information, see the Equipment Manual).
When the Power Module is configured automatically, the Safe Brake Relay is detected and
the motor holding brake type is defaulted (p1278 = 0).
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Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
Drive Functions