I have these drives in a cabinet that I purchased from a plant closure... I was told they were in a testing lab as the company did make cnc equipment.... They look to be in great shape however I know nothing about servo operation. here is a list of components.
yaskawa (3)SGDA-08AS and (1)sgda-04as SERVO DRIVE. power supply and pc (outdated) assorted relays buss board... a really professional setup. However I understand that these drives are designed to only be used with Yaskawa servos and as I said I am a not versed on servo based machines. I have included some pics to show the setup.
I have access to moog servos in the right sizes to fit my application. but I am not sure if they will interface, the 305a.pdf lists 305-12XA and is simular to the motor I have