Product Description:

The QS1A05AA servo amplifier is produced by Sanyo Denki for the Q SANMOTION Servo Amplifiers series. The unit conditions line power and interprets command signals so it can supply regulated three-phase current to a matched servo motor. By providing closed-loop velocity, torque, and position control, it serves as the central drive element in pick-and-place robots, indexing tables, and packaging machines that require accurate, repeatable motion.

Electrical integration centers on a three-phase AC 200–230 V main input that feeds the power stage; this path draws a peak current of 18 A during energization. The control electronics are served by a single-phase AC control supply that experiences a 40 A inrush current, after which the draw drops to the normal operating level. The amplifier accepts a 50/60 Hz input frequency within a tolerance of ±3 Hz and limits leakage current to 1.5 mA. Internally, an IGBT PWM sinusoidal drive modulates the bus voltage, producing low-harmonic waveforms for efficient motor excitation. A built-in dynamic brake helps stop the connected motor, while sinusoidal modulation minimizes torque ripple across typical plant voltages.

The QS1A05AA accepts quadrature or pulse-train references at a maximum reference rate of 5 million pulses per second, allowing high-resolution movement with speed, torque, or position control. A forced-air path from the built-in fan cools the 2.2 kg chassis and helps prevent thermal derating during operation. Emergency stopping is handled by the internal resistor bank, which engages after a 10 ms brake delay and can absorb 1800 J of brake energy. Brake use is limited to 10 activations per hour or 50 per day to prevent the resistor bank from overheating. For process protection, the ±2.0 V current-limit input allows an external controller to restrict torque in real time. Parameter adjustment and fault logging are available through the RS-232C setup interface.