We had a problem with our Toyoda FH100B mill tool changer.....The drive is a Teijin Seiki AR135. It showed E-1 on the display as soon as it was powered up with no load on the motor. E-1 is a high current alarm. I found a company in North Carolina that repairs these drives. Contact Industrial Electronics Repair and ask for Donna.....www.industrial_electronics_repair.com