The following table lists the safety functions integrated in ACOPOSmulti inverter modules with SafeMOTION as well as the safety levels that can be achieved when they are used:
Safety function | EN ISO 13849-1 | EN 61508 / EN 62061 | Safe encoder evaluation required? |
---|---|---|---|
Safe Torque Off (STO) | Pl e | SIL 3 | No |
Safe Operation Stop (SOS) | Pl d | SIL 2 | Yes |
Safe Stop 1 (SS1) | Pl e (time monitored) / Pl d | SIL 3 (time monitored) / SIL 2 | no (time monitored) / yes |
Safe stop 2 (SS2) | Pl d | SIL 2 | Yes |
Safely Limited Speed (SLS) | Pl d | SIL 2 | Yes |
Safe Maximum Speed (SMS) | Pl d | SIL 2 | Yes |
Safe Direction (SDI) | Pl d | SIL 2 | Yes |
Safe Limited Increment (SLI) | Pl d | SIL 2 | Yes |
Safe Brake Control (SBC) | Pl e | SIL 3 | No |