RS1A03AB

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The RS1A03AB servo drive operates within an AC input voltage range of 200V to 230V ±10% and has a rated armature current of 0.8 Arms. Manufactured by Sanyo Denki under the R SANMOTION Servo Drives series, it features IP65 protection for the servomotor. With Modbus-RTU (RS-485) communication, it ensures reliable performance.

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Product Description:

The RS1A03AB Servo Drive is a complex motion management designed to provide outstanding performance in a small package for high-end industrial automation applications. It is made by Sanyo Denki and its delivery of exceptional technology provides great control and automation solutions.

The RS1A03AB servo drive is illustrated as a single-axis drive that is widely used for AC 200 V rotary motors by offering reliable functioning. Operating from a frequency range of 50 to 60 Hz, this drive is flexible with analog or pulse interface types by making it compatible with multiple control interfaces. One of the key features of this R series servo drive is its encoder system. It utilizes a wire-saving type incremental encoder by mitigating complexity in wiring and installation. Also, it includes battery backup method absolute feedback which retains position data even in the event of power loss by ensuring system continuity. Because the output type is NPN selectable, it can potentially be simple to integrate in different control circuits. With a nominal current of 5.8 A and a rated current of 30 A, it guarantees steady performance across a range of load scenarios.

The RS1A03AB servo drive is built to work in harsh environments with an IP67 protection rating by preventing dusty setups and water droplets. It also features vibration resistance up to 24.5 m/s² by ensuring durability in high-motion environments. Also, it can operate at elevations of up to 1000 meters for the simplest installation purpose. The drive is designed to tolerate up to 90% moisture limit by preventing operational disruptions due to humidity. These attributes make it a vigorous and efficient choice for automation systems that require consistent and reliable control.

Brake Rated Current
0.09 A for DC24V
Brake Rated Voltage
24VDC ±10%; DC90 (optional)
Communication Protocol
Modbus-RTU (RS-485)
Encoder Power
+5V DC Wiring
Input Voltage Range
AC 200V to 230V ±10%
Max. Instantaneous Stall Torque
0.5 Nm
Operating Altitude
1000 m or lower above sea level
Phase Resistance
12 ohms
Rated Armature Current
0.8 Arms
Rotor Inertia
0.117 x 10⁻⁴kg.m²
Servo Motor Protection Code
IP65 (Option for IP67)
Shock Resistance
98 m/s²
Temperature Range
Operation: 0 to 40°C; Storage: -20 to 65°C
Vibration Resistance
24.5 m/s²

Frequently Asked Questions about RS1A03AB:

Q: What is the operating voltage range of the RS1A03AB servo drive?

A: The RS1A03AB, from the R Series by Sanyo Denki, operates at AC 200V, ensuring stable power delivery for rotary motors in automation applications.

Q: What type of encoder does the RS1A03AB use?

A: This servo drive features a wire-saving incremental encoder and supports a battery backup method absolute encoder, allowing reliable position tracking and power-loss recovery.

Q: Does the RS1A03AB support high moisture environments?

A: Yes, it tolerates up to 90% humidity, making it highly resistant to moisture-related issues in industrial and automation settings.

Q: What is the vibration resistance rating of the RS1A03AB?

A: It has a vibration resistance of 24.5 m/s², ensuring durability and stable operation in environments with mechanical disturbances.

Q: What is the rated current and operational current of the RS1A03AB?

A: The rated current is 30A, while the operational current is 5.8A, delivering consistent and efficient power for servo motion control.


Internal Product Review

  • ‘‘The RS1A03AB servo drive, part of the R Series by Sanyo Denki, is a robust AC 200V unit with 5.8 A operating current. It ensures reliable performance with an absolute encoder backup and IP67 protection, making it ideal for high-moisture and vibration-prone environments.’’

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