Product Description:

The PY0A015A0M91P00 is a servo amplifier produced by Sanyo Denki for the PY Super BL Servo Amplifiers series. The module interfaces between a motion controller and brushless motors, shaping stator currents so positioning, speed, and torque commands are followed inside automated equipment. It accepts a three-phase mains feed and integrates dynamic braking and internal regeneration to manage motor energy during rapid cycles. With a compact footprint, it can be installed on control-panel DIN rails where space is limited and reliable thermal behavior is important.

The drive’s output stage is rated for 15 A, allowing continuous armature current delivery to matched Super BL servomotors. Internal dissipation is handled by a 20 W regenerative circuit that uses a 100 Ω resistor, preventing DC-bus overvoltage during deceleration. The control electronics withstand a surge of 40 A, while the main power circuit experiences up to 18 A of inrush current at startup. The frequency response reaches 400 Hz, providing tight current-loop bandwidth for precise velocity regulation. The amplifier belongs to the 200 VAC class, draws 1.0 kVA from the mains, and requires a separate 40 VA control supply. It reads differential command pulse trains at rates up to 2.6 Mpulse/s and accepts encoder feedback at 2,000 pulses per revolution.

The dynamic brake releases after 6.5 ms, and its energy absorber is rated for 360 J, supporting controlled stops without external clamps. Closed-loop speed adjustment is possible across a 1:5000 velocity control range, accommodating slow indexing and high-speed machining feeds from a single power stage. The chassis weighs 2.2 kg, making it light enough for door-mounted installations while providing the stiffness needed to support the heat spreader. Dynamic braking helps slow the connected motor when operating conditions require a rapid stop. The internal regenerative circuit absorbs returning energy during deceleration and limits voltage rise on the DC bus.