SIMULATION ERROR

[julio.peres]

Hi everyone,
Im trying simulate the circuit below and when i started the mensage shows: "A simulation error has occurred.". I realized that when i remove Vdc from 555 called U5, the circuit works. If de 555 U5 is connected on Vdc, all rest doesnt work. I appreciate if you can help.

If you guys want to try the circuit the file .ms13 it is here too.

I already try to change any parameters like these in the link Multisim Simulation Error: Time Step Too Small but also doesnt work.

[orlandiisabelle]

Hi Julio,

I will work in this circuit to try understand what is happening. As soon as I figure out, I come back here to let you know.

Best Regards,