Safety Function - Emergency Stop; Connection Example To A Safety Controller - ABB HD5-S Original Instructions Manual

Safety function – emergency stop
When calculating the PL for the E-stop function the MTTF shall be calculated with the B For the
D 10D .
emergency stop button (see 10. Technical data) it is given according by the following:
B : 250.000
10D
If an n of 365 is assumed the MTTF will be 6849 years, i.e. MTTF =High.
op D D
When using safety PLC Pluto, the relevant pre-certified function block shall be used.
All relevant requirements of EN ISO 13849-1 needs to be fulfilled.

Connection example to a safety controller

2TLC010052M0201_A 18