RS1A05AL Sanyo Denki
Wake Industrial LLC is not an authorized distributor of this product.
The RS1A05AL is a servo drive manufactured by Sanyo Denki as part of the R SANMOTION Servo Drives series. It has an amplifier capacity of 50 Amps and uses IGBT PWM control with a sinusoidal drive waveform. This unit features a built-in dynamic brake and regeneration process, and supports a speed control range of 1 to 5000.
Internal Product Review
The RS1A05AL is a Sanyo Denki servo drive featuring a CANopen interface and IGBT PWM control. A 1:5000 speed control range and 600 Hz frequency characteristics give the drive excellent precision and responsive motion performance. Built-in dynamic braking and built-in regeneration make the RS1A05AL an efficient choice for high-performance servo systems.
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Product Description:
The RS1A05AL servo amplifier is produced by Sanyo Denki as part of the R SANMOTION Servo Drives series. It functions as the power stage between an industrial controller and a permanent-magnet servo motor, shaping the drive waveform so motion axes can be positioned, speed-regulated, or torque-limited with high accuracy on automated lines. The amplifier can deliver up to 50 A of phase current, allowing it to accelerate medium-frame motors without saturation.
A dual input of 200 VAC for the main and control circuits simplifies cabinet wiring and keeps the power domain consistent. Integration with supervisory controllers is handled through the CANopen interface, so parameter changes and diagnostic data travel over a single fieldbus. Commutation is managed by an IGBT PWM control stage that switches at a high carrier frequency to minimize ripple while maintaining efficiency. Closed-loop operation remains stable across a 1:5000 speed control range, supporting slow indexing and high-speed conveyance without mechanical ratio changes. A built-in dynamic brake and regeneration circuit dissipate excess energy when the motor decelerates.
During power-up, the drive withstands an inrush current of 40 A for the control circuit and 24 A for the main circuit, so upstream protection devices must be sized accordingly. The feedback bandwidth reaches 600 Hz, supporting tight command following during rapid changes in load. The aluminum chassis weighs 2.3 kg, which helps reduce panel mass. It measures 168 mm high and 160 mm deep, with a compact width of 90 mm that allows dense multi-axis layouts. Sinusoidal output reduces acoustic noise, while leakage current remains below 1.5 mA for personnel safety. An encoder port supports either wire-saving incremental feedback or battery-backed absolute feedback, removing the need for external converter modules.
