The safety functions are available in all modes and can communicate with the process using safety-oriented input/output signals. They can be implemented for each individual axis and spindle.

Safety Integrated drive-based (basic version)

• Safe Torque Off (STO)
  Suppression of drive pulses, providing safe electronic interruption of the energy supply
• Safe Brake Control (SBC)
  Safe, 2-channel control of a holding brake – integrated in the SINAMICS S120 Motor Module
• Safe Stop 1 (SS1)
  Safe shutdown of a drive, with subsequent transition into the STO state

Safety Integrated system-integrated (option)

• Safe shutdown
  Ensures safe transition of the drive from motion to standstill when a monitoring device or sensor (e.g. light barrier) responds
  , optimally adapted to the operating conditions of the machine.
• Safe Brake Ramp (SBR)
  Monitoring of speed curve – after a stop request, the speed must be reduced
• Safe Operating Stop (SBH, SOS)
  Monitors drives for standstill – the drives remain fully functional in the position control
• Safe standstill (SH, STO)
  Suppression of drive pulses, providing safe electronic interruption of the energy supply
• Safely Limited Speed (SG, SLS)
  Monitoring of configurable speed limits, e.g. in setup mode
• Safety-related output n < n_x
  Safe speed recognition of a drive
• Safe software limit switches (SE, SLP)
  Variable traversing range limitation
• Safe software cams (SN)
  Range recognition
• Safety-related input/output signals (SGE/SGA)
  Interface with process
• Safe programmable logic (SPL)
  Direct connection of all safety-related signals and their internal logic operation
• Safe brake management (SBM)
  • Safe Brake Control (SBC)
    2-channel braking signal – integrated in the SINAMICS S120 Motor Module
  • Safe Brake Test (SBT)
    Cyclic brake test
• Safety-related communication via standard bus
  • Connection of distributed I/O for process and safety signals via PROFIBUS/PROFINET using the PROFIsafe protocol
  • Safety-related CPU – CPU communication via PROFIBUS/PROFINET
• Integrated acceptance test with SINUMERIK Operate
  Partially automated acceptance test for all safety-related functions. Simple operation of the test process, automatic configuration of trace functions and automatic generation of an acceptance record.