Safe state

The safety concept is based on a safe state existing for all safe process values. For safety-related operation of the device, the switched-off torque is defined as a safe state.

A safe state of the MOVISAFE® CS..A safety option is defined as follows:

  • The internal safe digital output F-DO_STO is disabled. This activates the STO safety sub-function.
  • All other existing safe digital outputs are disabled.
  • If safe communication is parameterized, either substitute values are sent for the data (i.e. all data is "0"), or the communication is interrupted.

The safe state of the SBM safe brake module is defined as follows:

  • The electrical power supply to the brake is safely interrupted.