Optimum Lathe with 7i76 and 8i20

Its fairly tricky to get a random BLDC motor running correctly especially
if you dont have experience with how all the wrong setups act...

Basically 4 things must be right before you can run the motor properly:

1. Commutation direction
2. Commutation scaling
3. Rotor alignment
4. Feedback direction

This means that you need a methodical process for getting all these
items correct or there is little chance of success.

You _can_ use 5v signals for 7I76 Field I/O, but it means all I/O becomes 5V
which is usually not desired

What you do is separate VIN from VFIELD (by moving 7I76 Jumper W1 right)
Then power the 7I76's VIN with 8 to 32VDC and VFIELD with 5V