Product Description:

The GADSA15AA22 is an AC servo amplifier manufactured by Sanyo Denki within the G Sanmotion AC Servo Amplifiers series. Positioned between a motion controller and a servo motor, the module converts regulated three-phase power into drive current that follows commanded torque or velocity profiles. This function supports repeatable motion in pick-and-place robots, printing lines, and precision stages that require tightly regulated current loops. The amplifier receives motion commands from an external controller and regulates the connected motor in response to those signals.

The power section has an amplifier capacity of 150 A, while its continuous output supports 34.0 Arms without derating. The unit accepts an input voltage from 200 to 240 VAC at 50/60 Hz from a three-phase source. During rapid acceleration, the drive can deliver a peak output of 83.0 Arms to overcome motor inertia. Control signals are accepted through an analog or pulse input interface, providing compatibility with PLCs and high-speed motion controllers. Command outputs for external devices use a sinking general-purpose output scheme. A built-in regeneration resistor absorbs energy returned during motor deceleration, reducing the need for an external braking component in applications that remain within its dissipation limit. The Safe Torque Off feature removes torque-producing power when activated, allowing the connected motor to stop generating commanded torque.

The amplifier supports a rated motor output of 7.0 kW, and the upstream power source must provide 13.0 kVA for the required input demand. The housing weighs 4.2 kg, which must be considered when selecting the panel surface and mounting hardware. When an external braking resistor is used, the minimum permitted series resistance is 6 Ω to prevent excessive regeneration current. The regeneration resistor can dissipate up to 120 W during repetitive stopping cycles. Cabinet placement should provide sufficient clearance for airflow around the amplifier and resistor area so generated heat can escape. Power, motor, control, and safety wiring should be routed according to their respective connection functions to limit interference between high-current conductors and command signals.