Why will the drive not accept a 3 wire control selection?
Altivar ATV61 ATV71 ATV312
All models, all serial numbers
3 wire configuration is available; however, the parameter will not change when attempted to save it.
When saving the parameter to 3-wire control, ENTER must be depressed and held for about 3 seconds in order to save it. Also, ensure that there is no run command applied.