Customer has a used AB-VFD they wanted installed. The thing is the size of 1200a switchboard. The customer says it was purchased at an auction and works. I installed the 3phase circuit and wire in the motor. I turned on vfd and I got "NOT Enabled +0.00 Hz." I dont have a manual to set parameters. I want to get input from anyone who has had this issue or experience with these drives. I tried setting some parametters on controller but I cant seem to set anything. The troubleshooting manual already tells me to replace control board with this issue. would like to hear if anyone has had experience with these drives