[Lozzy]

Good to know you got the right mains for the servos.
And I think this is pretty positive situation that every different motor/amp shows same symptom,
which in my thinking servos are not terribly wrong.
Your trouble is very consistent. Good sign I believe
.
I assume you motor's UVW connections are all good, right? But I suggest you to recheck wire colors in the manual.
Power lines and encoder lines seems good and all swapped hardwares show same thing then it would be somewhere above the servo packs.
I would probe terminals with an oscilloscope if there is pulse train going into the CN1.

Then again, you can try software jog within SigmaWin+ to confirm connections between motor and amp is right.
It doesn't send pulse train. That software simply gives commands to firmware inside amp and it turns.
By doing this software jog, you will see if all connections of CN2 are good, and you may try digging CN1 only.

Wish you a good luck.
Kevin


ps. I assume your wiring is all good but to make sure, there is a specific instruction on how to solder encoder wires in page323 of SGDA PDF file as belows;

1-2-3 = signal gnd, 4-5-6 = 24V. You should solder these groups. I happened to solder only 1 & 4 and I remember it didn't work correctly but can't recall how exactly it behaved at that time.
Attachment 334644

[Lozzy]

I just saw that I wrote something wrong.
4/5/6=encoder V+, not 24V. I guess it is 5V.

Kevin