What does the strolling LEDs mean on the ATV312?
Altivar 312, Altivar 12
All serial numbers
The strolling LEDs mean the drive is in Local Operation mode. To switch into Local Programming, sush and hold the ESC button for 2s. Then all three LED's will be flashing at the same time and the programming can be changed. When programming is finished, push and hold the ESC button again for 2s to enter into Local Operation again.
To switch back into Remote mode, push and hold the Mode button for 3s. Note - some programming is reset to defaults when switching between Local and Remote.