Product Description:

The PY2A030A2 is an amplifier produced by Sanyo Denki for the PY Super BL Servo Amplifiers series. It links a motion controller to a brushless servo motor, shaping power from the three-phase stage into a modulated output for precise position and speed control in industrial robots, surface-mount placers, and other automated axes. The amplifier interprets reference commands, energizes the motor windings, and manages braking energy so that machinery can start, stop, and hold its position accurately during production cycles.

Separate power domains improve reliability because the logic section accepts a single-phase auxiliary feed, while the main power stage connects to a three-phase mains circuit. Heat generated by the switching devices is removed through forced-air cooling, keeping internal components within their rated temperature limits. Loop bandwidth extends to 400 Hz, and the velocity control range reaches 1:5000, allowing the unit to handle both slow indexing movements and rapid traverses. The torque-command and velocity-command analog inputs each have an impedance of 10 kΩ, minimizing the load placed on upstream control circuits. The current monitor returns 2.0 V with a tolerance of ±20%, while the velocity monitor returns 2.0 V with a tolerance of ±10% for current and speed measurement. A dynamic brake engages after 10 ms and can absorb 360 J during each stop, supporting emergency deceleration without separate braking hardware.

The enclosure weighs 2.2 kg, allowing installation on lightweight control panels or suitable moving machine sections. The amplifier has no built-in regenerative resistor, so applications that release sustained regenerative energy require an external shunt module. Ground bonding is provided through an M4 earth terminal, which creates a direct protective connection between the enclosure and the machine ground. The housing is secured with 1.18 N·m of mounting torque to provide stable attachment without overstressing the mounting points.