Hi
I am involved in a project where we may be looking towards using solid state (MOSFETs) to energize a 3phase motor or in another case just a simple solenoid.
But, it is unclear precisely which rules apply and if it is possible to use solid state to control a motor in a safety critical application. Also if the use of a SIL3 approved solid state solution would allow us to remove a safety breaker in front of the electronics if the electronics are designed accordingly (with doubled current sense circuits to act as over current guard)
Do any of you guys have input to this or a direction for me to search for answers to this?
Thanks
Klaus