Product Description:

The PU0A015EM81P00 is a servo amplifier in the PU Super Servo Amplifiers series produced by Sanyo Denki. It accepts motion commands from a controller and converts incoming electrical power into regulated phase current for a compatible servomotor. The amplifier continuously compares commanded movement with encoder feedback, then adjusts motor current to correct position errors during acceleration, steady motion, and deceleration. This closed-loop operation supports repeatable shaft positioning in pick-and-place stations, indexing tables, packaging machinery, and other automated axes that require coordinated movement.

The power stage provides a continuous output current of 15 A, allowing the amplifier to operate a matched motor without continuous-current derating. Its input accepts a 200 V AC supply, making the unit suitable for factory power systems that provide this voltage. Encoder processing supports incremental feedback, which reports changes in rotor position as the motor turns. The internal counter processes 2,000 pulses per revolution, providing the position granularity needed for precise motion profiles and responsive correction of tracking errors. The amplifier operates in position control mode, so controller commands represent target angular or linear positions rather than direct torque requests. Output-current regulation also helps the connected motor follow programmed movement when the mechanical load changes during an operating cycle.

The designated companion motor is the P50B07020D, whose electrical characteristics correspond to the amplifier’s current and voltage capabilities. Using the designated motor allows the control system to coordinate phase current and encoder information with the expected motor behavior. The unit uses a wiring-saving incremental connection format that combines power and feedback conductors through a reduced pin arrangement. This connection method reduces the number of separate cable paths required in multi-axis control cabinets while retaining the feedback signals needed for closed-loop position control. Model coding identifies the amplifier as the Standard type, indicating the baseline configuration for this product. Its compact control arrangement supports installations where several servo axes must exchange commands and feedback within a shared machine enclosure.