I think we are going around in circles here. Below are a couple of my 322’s, the one on the left has the reverse unit in the engine and the one on the right has the reverse unit in the tender, which version do you have?
if you have the one on the left then you would apply power from an AC transformer into the two sockets on the brown board and it will run, but only if everything is in good order, especially the reverse unit.
if you have the one on the right then it would need the tender to be plugged in to enable the motor to function in its normal setup. If you wish to run the motor without the tender then as several people have posted, you will need to strap the field coil to the armature to ‘Jerry’ rig it to work. Again, if you have the one on the right and the brown panel has not been altered for the wiring behind it then you need to get a spare piece of wire about three inches long with each end bare wire and insert one end into sockets second from the left and the other end far right.
Do not count the brass eyelet as a connection point that sits above the third hole from the left. The two wires from the transformer have one wire in first socket on left and third from the left. If everything is good then the motor should run in one direction. Do you have the tender for this engine?