RS1A05AAW Sanyo Denki
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The Sanyo Denki RS1A05AAW is a servo drive from the R SANMOTION Servo Drives series with an amplifier capacity of 50 Amps and a built-in dynamic brake with a delay of 10 milliseconds. It uses an IGBT PWM sinusoidal drive control system and operates on AC200V for both control and main power. The unit weighs 2.3 kilograms and has dimensions of 168 mm in height, 90 mm in width, and 160 mm in depth.
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Product Description:
The RS1A05AAW is a servo amplifier produced by Sanyo Denki within the R SANMOTION Servo Drives series. This unit interfaces between a motion controller and a permanent-magnet motor to supply regulated phase current, making it a core component in positioning tables, pick-and-place heads, and other industrial automation axes. By modulating motor winding voltage in response to feedback signals, it maintains the commanded velocity and torque under changing mechanical loads. The amplifier supports closed-loop motion by continually correcting the motor output as operating conditions change.
The amplifier has a rated capacity of 50 A, providing the peak phase current needed by medium-frame motors during rapid acceleration. Both the control and main circuits receive AC 200 V power, simplifying cabinet wiring in facilities with three-phase 200 V supplies. An IGBT PWM sinusoidal drive topology produces a low-harmonic motor output, while the 600 Hz frequency response allows the current loop to react quickly to command changes. Leakage current is limited to 1.5 mA, supporting connection to machinery equipped with sensitive ground-fault monitoring. The unit also includes a dynamic brake and regenerative resistor. These components manage energy returned by the motor during deceleration without requiring additional braking hardware outside the amplifier.
When the internal brake is activated, torque absorption begins after 10 ms, providing a rapid response during emergency stops or abrupt deceleration. The brake can absorb up to 1800 J of kinetic energy in each event, helping prevent uncontrolled motor movement as the connected load slows. Continuous speed regulation spans a ratio of 1:5000, permitting precise low-speed motion and full-rate travel from the same motor and amplifier combination. The housing weighs 2.3 kg, which limits the load placed on the control panel mounting structure. Its enclosure measures 168 mm high, 90 mm wide, and 160 mm deep, allowing multiple amplifiers to be arranged side by side in a standard industrial control enclosure. Adequate mounting clearance should be maintained around the housing so that internally generated heat can leave the unit during sustained operation.
