PY2A015A3-AL Sanyo Denki
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The Sanyo Denki PY2A015A3-AL is a servo amplifier in the PY Super BL Servo Amplifiers series with a mass of 1.5 kilograms and operates with a single-phase main circuit supply. It features a control power capacity of 40 VA, a control rush current of 40 Amps, and a dynamic brake delay of 10 milliseconds. The amplifier offers a velocity control range of 1:5000 and provides both torque and velocity command inputs at ±2.0 VDC.
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Product Description:
The PY2A015A3-AL is a servo amplifier produced by Sanyo Denki within the PY Super BL Servo Amplifiers series. Designed for position and speed regulation of Super BL servo motors, the unit takes low-level analog commands from a motion controller and modulates current to the motor phase lines. By providing closed-loop velocity and torque control, it forms an interface between PLC logic and axis hardware in pick-and-place modules, packaging equipment, and general factory automation. Its compact frame and integral dynamic brake circuit support fast stops without requiring separate braking components.
Control electronics draw 40 VA from the auxiliary supply, and an initial inrush of 40 A occurs when that control section is energized. Current feedback for diagnostic equipment is available at a fixed 0.5 V monitor point. The amplifier’s dynamic brake can absorb up to 360 J per stop and engages after a 10 ms delay, allowing rapid deceleration while protecting the drive transistors. The amplifier does not include a built-in regenerative resistor. Its frequency response extends to 400 Hz, supporting high-bandwidth servo loops, while leakage current to the enclosure is limited to 0.5 mA.
The power stage is supplied by a single-phase mains input, and the initial charging pulse reaches 23 A before the smoothing capacitors settle. Command processing accepts a differential torque reference of ±2.0 VDC and a separate velocity reference of ±2.0 VDC. The resulting speed loop maintains accuracy across a control range of 1:5000, allowing the connected motor to operate consistently at widely varying commanded speeds. Actual speed is transmitted to a separate 0.5 V monitor line, while motor current remains available through the current feedback output. At 1.5 kg, the amplifier adds minimal mass to a control cabinet. The amplifier has no dedicated ready contact, and the installation can accommodate an external harmonic filter when required by applicable electrical codes.
