Product Description:

The PY0A300A0PW1PK0 is a servo amplifier produced by Sanyo Denki for the PY Super BL Servo Amplifiers series. It serves as the drive interface between a motion controller and a matching Super BL motor. The amplifier modulates three-phase power so industrial automation cells can execute accurate speed and torque commands on pick-and-place axes, packaging lines, and electronic assembly stations.

The control section draws only 40 VA, yet it must tolerate a startup inrush of 40 A; this brief surge affects fuse selection and power distribution design. During rapid deceleration, the internal dynamic brake absorbs up to 14,000 J, and the brake relay closes within 42 ms, limiting overshoot before regenerative current is diverted. An external resistor may be added for loads with greater inertia. Closed-loop bandwidth reaches 400 Hz when the load inertia equals the motor inertia, supporting tight velocity loops. Analog diagnostics include a current monitor port scaled at 2.0 V ±20% and a velocity monitor port scaled at 2.0 V ±10%, enabling real-time oscilloscope checks without disturbing the feedback circuit. Speed accuracy stays within ±0.1% during line-voltage fluctuations, while temperature changes introduce no more than ±0.5% deviation. At rated speed, load variation is held to ±0.1%, preserving process repeatability.

The amplifier can dissipate up to 9,000 W of regenerative power through an external resistor. Its main power section withstands an inrush current of 30 A during the initial charging of the DC bus capacitors. The unit has an installation weight of 16 kg, which must be considered when selecting panel mounting hardware and accounting for vibration. During operation, the unit can regulate shaft speed across a range of 1:5000, allowing one motor-drive pair to handle slow positioning movements and high-speed traverses without gear changes.