How to use arduino to control big DC motor by using thyristors.?

Hello!

We have made the circuit according to the simple-circuit website. Opto isolation the schematic would be definetly better but we made the circuit like on that website.

Now when I wanted to connect and test our schematic with the old schematic I found a difference in the rectifier connections.

I made a new schematic how the old device has been connected. The difference is in thyristor and diode placement. The T2 and D1 are swapped. I think it should work with the same code, but to be certain I would like to ask it.