Siemens SIRIUS 3RW55 Equipment Manual page 357

Soft starters and solid-state switching devices

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Basic configuration for SIL 1

SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters

Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006

EMERGENCY STOP mushroom pushbutton 3SU1 for stopping operation

Pushbutton 3SU1 for enabling the safety function

3RW55 Failsafe soft starter

PROFINET (via 3RW5 PROFINET communication module)

Safety control

Safety-related output

Failsafe digital input

Failsafe signaling output (output 41, 42; output 4)

Example circuits

A.4 3RW55 Failsafe soft starter

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Sirius 3rw55 failsafe