Product Description:

The QS1A05AN0KE08A02 is a servo amplifier produced by Sanyo Denki within the Q SANMOTION Servo Amplifiers series. It modulates DC bus energy into controlled three-phase waveforms for connected servomotors. The resulting current and voltage support precise closed-loop speed and torque regulation for pick-and-place arms, indexing tables, and other automated machinery.

At the output stage, the amplifier delivers 50 A of continuous drive current, providing headroom for medium-frame servomotors. Excess regenerative energy is absorbed by a built-in 17 Ω resistor, reducing the need for an external brake during most positioning cycles. The control section uses an IGBT PWM sinusoidal drive that maintains velocity linearity up to 600 Hz. During power-up, the control circuit draws an inrush current of 40 A, while steady power consumption remains at 30 VA; protective devices must be sized accordingly. The main circuit has an inrush current of 18 A, which is managed by line contactors, and leakage current is limited to 1.5 mA per motor. The speed monitor produces an output of 2 V per 1,000 rpm through a 1 kΩ resistor for connection to standard analog inputs.

Position reference signals enter through a differential pulse interface that accepts rates up to 5 Mpps, supporting high-resolution encoders without data loss. Once motion is commanded, the amplifier can regulate motor speed over a range of 1:5000, allowing slow homing moves and rapid indexing on the same axis. An internal dynamic brake supports emergency stops by engaging after a delay of 10 ms. The brake can dissipate 1800 J of kinetic energy, helping prevent overvoltage trips during abrupt deceleration. The housing weighs 2.2 kg, allowing installation on suitable DIN rails or shallow panels. Integrated monitoring and the PWM control topology support stable operation during high-duty production cycles.