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RS3A03A0AL0

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The RS3A03A0AL0 servo drive features an IGBT-based sinusoidal PWM control system and supports a single controllable axis. Manufactured by Sanyo Denki, this drive is part of the R SANMOTION Servo Drives series. It includes analog/pulse interface and weighs just 0.8 kg.

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Product Description

The RS3A03A0AL0 Servo Drive> manufactured by < controls various motor types and parameters with its robust performance and flexibility. It is produced for functioning in industrial automation, robotics and other similar applications.

This RS3A03A0AL0 servo drive features a speed monitor that outputs a voltage signal of 2.0V ±10% proportional to the speed of the motor, specifically when running at 1000 RPM. This module can handle up to 50 amperes and is responsible for supplying the necessary electrical power to the motor. It has a safety feature of Safe Torque Off function that immediately disables the motor’s torque to prevent accidental movement to ensure that the system is safe when required. It is a single axis servo drive and is designed to control one axis like one motor. This model can control the motor in three modes such as it can control the position, speed and torque of the motor. It controls the torque generated by the motor and can be switched based on the parameters set. For power switching it uses Insulated Gate Bipolar Transistor technology which is efficient and reliable. This control technology means the motor’s power is regulated using a sinusoidal waveform that ensures smooth operation and minimizes harmonic distortion.

This R SANMOTION Servo Drive can be run on a three phase AC power supply with a voltage between 200V to 240V range and with a tolerance of +10% and -15%. This model also operates on single phase AC power in the same voltage range and with the same tolerance. However, power supply frequency can either be 50 Hz or 60 Hz, with a slight tolerance of ±3 Hz.

RS3A03A0AL0 Technical Specifications

Amplifier capacity: 30 A
General-purpose output: Sinking type (NPN)
Number of controllable axes: 1 axis
Operating temperature range: 0 to +55 °C
Operating humidity range: Up to 90% RH (non‑condensing)
Servo amplifier mass: 0.8 kg
Safety functions: None
Control circuit voltage (1φ): 200–240 VAC (+10/–15%)
Control circuit frequency: 50/60 Hz (±3 Hz)
Main circuit voltage (3φ): 200–240 VAC (+10/–15%)
Main circuit voltage (1φ): 200–240 VAC (+10/–15%)
Main circuit frequency: 50/60 Hz (±3 Hz)
Control system: IGBT-based sinusoidal PWM control
Control functions: Position, speed, torque control
Interface: Analog / Pulse

Frequently Asked Questions about RS3A03A0AL0


Q: Why is the RS3A03A0AL0 Servo Drive's sinusoidal PWM control used?

A: Sinusoidal PWM control ensures smooth motor operation and reduces harmonic distortion. It helps achieve precise control over the motor’s performance with minimal energy loss.

Q: How does the speed monitoring feature in the RS3A03A0AL0 Servo Drive help?

A: The speed monitor outputs a 2.0V ±10% signal proportional to motor speed. This allows easy integration with external monitoring systems for real-time speed tracking.

Q: Why does the RS3A03A0AL0 Servo Drive support both single-phase and three-phase power?

A: This feature enhances versatility by allowing operation in a wide range of power supply configurations. It ensures compatibility with different industrial settings.

Q: What is the importance of the RS3A03A0AL0 Servo Drive's 50/60Hz frequency tolerance?

A: The 50/60Hz tolerance ensures stable operation in regions with slight variations in power supply frequency. This allows the drive to function reliably in diverse environments.

Q: How does the RS3A03A0AL0 Servo Drive handle motor control modes?

A: The drive supports position, speed, and torque control, providing flexibility. This allows users to configure the drive based on specific application requirements.

Internal Product Review

  • ‘‘The RS3A03A0AL0 Servo Drive by Sanyo Denki is designed for precision control in various applications. With a Safe Torque Off function, it ensures motor safety. It can operate on both three-phase and single-phase AC power within a 200-240V range. The drive also features sinusoidal PWM control for smooth motor performance.’’

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