Car needs to set up by the book. Are the overloads set up properly on the drive? Is the voltage at the bottom of drive at least what the armature is rated for? Are the drives offsets setup correctly? Also how about the motor field voltage? What controller IMC or Ibox?

When car is setup your supposed to pull door lock wire while setting up to adjust certain settings to prevent this type of stuff. My bet is that the overcurrent is maxed out along with other settings.