Frequently asked questions
The ATV71 has LI2 assigned for run reverse. Why does the drive continue to run forward when LI2 goes high?
28 September 2021Issue:
ATV71 has run reverse command assigned to LI2 but the drive continues to run forward when LI2 is activated, 2 wire control.
Altivar 61, Altivar 71.
All models, All serial numbers.
Drive is not responding to the command to run reverse.
In 2 wire control, logic input LI1 is assigned to run forward. LI1 must be removed when switching to run reverse. If the drive receives a run reverse command without removing the run forward command, it will continue to run forward. The same logic holds true when switching from reverse to forward.