Prototrak Plus Retrofit with Mesa 7i77 & 5i25 cards

QAn and /QAn are the terminals on the 7i77 for the analog control signal wires. For example QA0 is pin #1 on TB3 of your 7i77, and /QA0 is pin#2.

Many thanks Todd!! I believe all the TB3 signal wires were tested and teased out for the proper location in my earlier (prior to the miss wire) and I think a big part of that you helped with. I can research how we got the current locations if needed.

many thanks again!

Hi new2linux,
Do you have the servo amp make and model? As Todd says, that is a strange voltage requirement to make the motors move.
Best, Dan.

This is the only info out there, on this model:

www.southwesternindustries.com/media/manuals/24923_manual.pdf

I am working to verify the voltage and amp settings, keeping in mind the max amp is no more than 2000 Ohms. as per Todd's suggestion.

In that manual, page 68, 69, there is a picture of the motor drive module. There should be a make and model number on that module.
Best, Dan.

Many thanks lakeweb! I don't know if there is any other info out there. This is on the power supply.

SouthWestern Ind.= Manufacture
ProtoTrak Plus=model
15047= part #
MD1-M1568=serial #


Many thanks for all the help!