RS1A01AAWXXA3P0S Sanyo Denki
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The RS1A01AAWXXA3P0S is a servo drive produced by Sanyo Denki and is part of the R SANMOTION Servo Drives series. It offers an amplifier capacity of 15 Amps and uses an IGBT PWM sinusoidal drive control system. The drive supports a position control mode and features a 17-bit optical encoder with a bit rate of 2.5 Mbps.
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Product Description:
The RS1A01AAWXXA3P0S is a servo amplifier produced by Sanyo Denki for the R SANMOTION Servo Drives series. It acts as the power and signal interface between a motion controller and a rotary motor. The amplifier translates command pulses into phase-aligned currents so automated equipment can reach target positions quickly and with consistent accuracy. Its position-control functions are integrated into the unit, allowing motion commands to be processed without a separate positioning module.
The power stage delivers up to 15 A of continuous output and uses an IGBT PWM sinusoidal drive topology that reduces torque ripple during high-speed moves. Command inputs can be accepted at rates up to 5 million pulses per second, supporting finely controlled incremental motion. Feedback comes from an optical encoder with a 17-bit single-turn resolution, and data is transferred to the amplifier through a half-duplex start-stop channel operating at 2.5 Mbps. Position control is handled directly inside the unit, while NPN sink outputs send alarm and in-position signals to the PLC. The amplifier is designed for use with rotary motors. Its high command-input rate allows the controller to issue small movement increments while maintaining rapid axis response. The encoder interface supplies the position information required for accurate closed-loop correction throughout each movement.
A multi-turn counter supplements the fine encoder angle with 16-bit revolution data, allowing absolute position recovery after a power cycle without external batteries. Line leakage current is limited to 0.5 mA, which helps minimize ground potential differences when multiple drives share a common cabinet ground. The amplifier has an overall mass of 0.9 kg, simplifying rail mounting next to other automation modules without adding substantial weight to the installation. The feedback cable can use AWG 24 conductors, reducing cable bulk while supporting the required communication bandwidth. The half-duplex interface carries encoder data between the motor and amplifier, while the NPN sink outputs provide status information to the connected control system. These separate feedback and status paths allow the amplifier to receive position data while reporting operating conditions through its output signals.
