how can i avoid this error in the breaker block ?

I designed synchronous motor but I got error when I set the breaker in the circuit why?

also the switches there is no change, i set the value at 1.3 s as in the example here https://www.mathworks.com/help/physmod/sps/ug/starting-a-synchronous-motor.html?searchHighlight=synchronous%20machine&s_tid=srchtitle_synchronous%20machine_19

and this is the model attached below

Answer 1

[Benjamin Thompson]

Does it work if you run the original example without changes? You do not change the timestep which is set to variable with max 500 us. You should get this result in the scope output.

[OMAR MOUSA]

thank you a lot