Product Description:

The GADSE03AB22 is an AC servo amplifier produced by Sanyo Denki for the G Sanmotion AC Servo Amplifiers series. Acting as the power stage between a motion controller and a brushless servo motor, the unit regulates energy delivery so that position, speed, and torque loops operate accurately in automated equipment. By converting single-phase line power or power from a 150 VDC bus into sinusoidal motor currents, it supports compact pick-and-place axes, indexing tables, and other factory automation tasks that require fast electromechanical response.

The amplifier has a capacity rating of 30 A, while its continuous current rating is limited to 5.2 Arms to keep thermal stress within safe limits. For brief acceleration periods, the drive supplies up to 16.3 Arms, allowing the connected motor to overcome inertia without overstressing the amplifier components. The power section is fed from a 150 VDC link derived from the single-phase input, and the front end requires a 2.4 kVA source to accommodate converter losses and dynamic demand. Current is shaped by an IGBT-based sinusoidal pulse-width modulation system, producing the controlled waveforms required by a compatible brushless servo motor. The command interface accepts analog references or differential pulse trains for integration with different motion controllers. A dedicated control circuit draws 0.3 Arms, while position, speed, or torque operation can be selected through the drive parameters.

The amplifier can drive motors with an output of up to 1.5 kW, providing power for compact industrial motion axes. During regenerative braking, an internal chopper routes excess energy to a 10 Ω resistor rather than allowing the DC-link voltage to rise without control. The STO input operates without a delay circuit, allowing the safety signal to act directly on the amplifier’s torque-producing function. The unit withstands shock acceleration of up to 20 m/s² and vibration acceleration of up to 6 m/s², permitting installation in control cabinets exposed to normal machine movement and occasional mechanical impacts. Its general-purpose digital outputs use a sourcing arrangement for connection to compatible control inputs.