GADSA05LB22 Sanyo Denki
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The Sanyo Denki GADSA05LB22 is part of the G Sanmotion AC Servo Amplifiers series and has an amplifier capacity of 50 Amps. This servo amplifier supports a maximum compatible motor output of 2.5 kW and a power supply capacity of 3.8 kVA. The device uses an IGBT-based sinusoidal PWM control system and can perform position, speed, and torque control.
Internal Product Review
The GADSA05LB22 is a Sanyo Denki G Sanmotion AC servo amplifier with a 200 VAC input class and an analog/pulse interface. IGBT-based sinusoidal PWM control and position/speed/torque control give the unit smooth response in precision motion applications. A 26.5 Arms peak output current and 1:5000 velocity control range make the amplifier a strong choice for demanding servo systems.
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Product Description:
The GADSA05LB22 is an AC servo amplifier manufactured by Sanyo Denki for the G Sanmotion AC Servo Amplifiers series. It converts commanded position, speed, or torque references into controlled three-phase current for compatible Sanmotion servo motors. Feedback from the motor allows the amplifier to correct motion errors and maintain closed-loop control as operating loads change. The unit can control pick-and-place axes, indexing tables, packaging equipment, and other automated systems that require accurate rotary motion.
The amplifier has a current capacity of 50 A, which is the maximum instantaneous current that the internal IGBT bridge can deliver without saturation. Under a steady load, the unit supplies 12.0 Arms, while a short-term reserve of 26.5 Arms supports rapid acceleration and deceleration. The power section operates from a 200 VAC input supplied by either three-phase or single-phase mains. Its inverter stage uses an IGBT-based sinusoidal pulse-width modulation control system to reduce motor current ripple and promote smooth rotation. Position, velocity, and torque loops accept analog or pulse references, while sourcing-type general-purpose outputs transmit operating status to the host controller. The upstream power supply must provide 3.8 kVA for the amplifier and connected motor. Excess kinetic energy is directed to an external regenerative resistor because the chassis does not contain an internal braking element.
The drive can be paired with servo motors rated up to 2.5 kW, setting the upper motor power supported by the amplifier. Speed regulation covers a 1:5000 control range, permitting slow positioning moves and high-speed production cycles within the same axis configuration. Safe torque off is included without a delay circuit, allowing the power stage to shut down immediately when the STO chain opens. A minimum external braking resistance of 10 Ω helps prevent excessive power dissipation during dynamic stops. The amplifier has a mass of 1.50 kg, which reduces the load placed on panel mounting surfaces and support hardware. Its compact mass also makes the unit suitable for control cabinets where several motion axes must be arranged within limited panel space.
