Product Description:

The GADSA05AA22 is an AC servo amplifier produced by Sanyo Denki as part of the G Sanmotion AC Servo Amplifiers series. Intended for multi-axis positioning stages and material-handling equipment, the unit receives motion commands, processes feedback, and supplies controlled three-phase current to a matched servo motor. By modulating energy with high-frequency switching devices, it enables tight speed, torque, and position control for modern industrial automation cells.

It uses an IGBT sinusoidal PWM control system, so the motor windings are driven with low-harmonic waveforms that minimize acoustic noise and heating. The internal power section has an amplifier capacity of 50 A. It delivers a continuous armature output of 12.0 A rms and a short-term armature output of 26.5 A rms for acceleration events. When paired with a servo motor with a rated output of 2.5 kW, the amplifier can reach full shaft power without current foldback. Command signals arrive through an analog and pulse interface, while safety shutdown is handled by an STO circuit without a delay circuit. The chassis has a mass of 1.50 kg, allowing installation in cabinets where space and supported load are limited.

The incoming mains supply requires an input capacity of 3.8 kVA. Excess kinetic energy is dissipated by a built-in 10 Ω resistor with a regenerative capacity of 90 W before thermal cutback occurs. The regenerative path is integrated, so an external dump module is not required. Velocity feedback can be regulated across a control range of 1:5000, supporting accurate low-speed movement and high-speed travel with the same tuning. The amplifier has a sinking digital general-purpose output, simplifying its connection to PLC inputs that share a common positive rail. During transport or operation, the enclosure withstands shocks of 20 m/s² and vibrations of 6 m/s² without loss of calibration under typical factory-floor conditions.