It have been a while since I have been looking into this but know the summer is over and I would really love to find a solution to this 7024 error. I have been in contact whit the produser of the triax CMS in Italy and there is one there that answers my mail.
I would like to find the best way to locate my problem. one you you was talking about running the drive directlt from a battery box. I have never done anything like that before but If I understand you rigth you connect directly to the drive and makes a signal that the drive thinks is from the controller. Have anyone done that on similar drives as I have?