What is a step motor “translator”?
A translator is a special type of power amplifier used for stepper motors. Translators typically are controlled by two electronic signals entitled “pulse” (or “step”) and “direction”. In its dormant state, the translator powers the step motor in such a manner so as to hold the shaft position in place. When a translator receives a single pulse, it immediately applies the appropriate currents to the motor windings so that the motor rotates from its present position by an incremental angle. The logic level of the “direction” signal (high or low) at the time of the pulse determines which direction the shaft will rotate, clockwise or counterclockwise. One translator is required for each motor. Some companies package two or more translators together as one unit, but they are each controlled by independent “pulse” and “direction” signals. Indexer LPT can control up to seven translators simultaneously.