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① Dierence to the wiring in chapter EMERGENCY STOP shutdown to SIL 3 STO with a 3RW55 Failsafe
soft starter with coupling of the digital input DI to the failsafe digital input F-DI (Page 352). In this
example of a circuit, no ground connection is required at terminal M because the digital inputs
DI1 ... DI4 are supplied from the sensor supply L+.
Example circuits
A.4 3RW55 Failsafe soft starter
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006 351
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