Product Description:

The PY2A050E4XXXPT0 is a servo drive module produced by Sanyo Denki within the PY Super BL Servo Amplifiers series. Configured as a three-phase inverter for brushless servo motors, the unit converts commanded analog torque or velocity references into precise phase currents, enabling closed-loop positioning and speed regulation in automated machinery. Its integrated dynamic braking stage and onboard regenerative resistor allow it to dissipate regenerated energy internally, so no external braking hardware is needed in typical factory motion axes.

For continuous operation, the amplifier can deliver 50 A of phase current, a level suitable for midsized rotary servos that demand high acceleration without thermal derating. The power section accepts a 200 VAC input with a dynamic brake, so it connects directly to standard machine mains while providing immediate braking torque when the DC bus exceeds a set threshold. Current loops settle quickly due to a bandwidth of 400 Hz, supporting low following error in high-speed pick-and-place heads. Closed-loop speed regulation spans 1:5000, allowing the same motor to creep during alignment and then accelerate to its rated speed without controller-side parameter changes. During rapid deceleration, the built-in resistor absorbs up to 1330 J of kinetic energy, helping prevent overvoltage trips.

Transient events are handled by separate inrush paths: the control supply tolerates 40 A for a maximum of 1 ms, and the main converter limits charging current to 23 A for a maximum of 600 ms, protecting upstream breakers from nuisance trips. The aluminum chassis weighs 2.7 kg, measures 135 mm deep, and stands 168 mm high, so it fits densely inside multi-axis cabinets. The dynamic brake engages after a 24 ms delay when the enable line drops. Command interfaces include a ±2.0 V torque input and a ±2.0 V velocity reference. A 0.5 V monitor output tracks the actual motor speed.