FA244197
28 September 2021
Issue:ATV312 running at 15hz and not following analog input signal.
Product Line:Altivar ATV31 and ATV312
Environment:All
Cause:The drive is not following his 4 to 20mA input signal and is stuck running at 15hz.
Resolution:Troubleshooting tips.
Check to see if you have a preset speed turned on in the FUN menu then PSS then PS2 and PS4
If the preset speeds are programmed check to see if you have wires connected to the assigned preset speed inputs.
remove the wires or unassigned the preset speed log inputs.
