Siemens SINAMICS S120 Function Manual page 375

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Activation of brake via a relay with Safe Brake Control:

If Safe Brake Control is used, the brake must not be activated via a relay. This can result in

incorrect feedback regarding a brake fault.

Overview of important parameters (see SINAMICS S120/S150 List Manual)

● p0799 CU inputs/outputs sampling time

● r9780 SI monitoring clock cycle (Control Unit)

● r9880 SI monitoring clock cycle (Motor Module)

Drive functions

Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5

Safety Integrated basic functions

9.5 Safe Brake Control (SBC)