What happens if I apply a negative voltage to the Picomotor™?
Any negative bias or reverse bias will depole the piezo. The Picomotor controllers manufactured by New Focus always provide a positive bias. In order to provide the ability to have the falling edge of the pulse first, the waveform is offset by 120 V. Once the piezo is depoled, its efficiency is greatly reduced. The device can be repaired, but it is considered a non-warranty repair.
