L511T-019

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The L511T-019 servo motor delivers a rated output of 40 watts, a rated torque of 0.13 Nm, and a maximum rotating speed of 5000 rpm. Part of the Super DC Servo Motors series by Sanyo Denki, it is optimized with an armature winding resistance of 16.2 Ω and is compatible with the DA2D020 servo amplifier.

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Product Description:

The L511T-019 DC Motor is designed by Sanyo Denki which operates on direct current to ensure smooth acceleration and responsive speed adjustments, ideal for servo based systems. It consumes around 3.2 A under normal load which balances efficiency with power and also its integrated tachogenerator provides a feedback signal of 7 millivolts per RPM which enables accurate speed monitoring and closed loop control.

The L511T-019 Servo Motor has the ability to provide 110 watts of mechanical energy which represents the work it can perform in a given time which is a useful measure of its overall output capability. Its twisting strength is represented by its rotational force of 0.186 nm which it can apply to a load that allows it to move moderate mechanical resistance efficiently. This module is insulated to endure temperatures reaching up to 311°F which provides confidence that it can withstand relatively high thermal environments without failure. All its cabling is encased in protective material to prevent electrical noise or signal interference from affecting performance which is an essential requirement in signal sensitive or noisy industrial automation settings. For its operation it needs a common low voltage level of 24 volts DC which is often found in battery powered systems, mobile robots and control panels.

This L511T-019 Servo Motor has a rotational velocity of 3500 rpm under no load or light load which allows it to be used in fast moving systems and it includes a visible and usable rotating shaft which is essential for converting the motor’s internal motion to external mechanical work. As it has an IP43 rating, its enclosure is resistant to solid objects larger than 1 mm and can also withstand light water spray at angles up to 60° from vertical that offers moderate environmental protection. 

Applicable Servo Amplifier
DA2D020
Armature Inductance
4.2 mH
Armature Winding Resistance
16.2 Ω
Continuous Stall Torque
0.14 Nm
Instantaneous Maximum Torque
0.76 Nm
Maximum Rotating Speed
5000 rpm
Mechanical Time Constant
4.5 ms
Rated Armature Current
1.0 A
Rated Armature Voltage
72 V
Rated Output
40 W
Rated Rotating Speed
3000 rpm
Rated Torque
0.13 Nm
Rotor Inertia
0.0000084 kg·m²
Thermal Resistance
3.6 K/W
Thermal Time Constant
20 min

Frequently Asked Questions about L511T-019:

Q: How does the tachogenerator in the L511T-019 enhance closed-loop control accuracy?

A: The tachogenerator provides real-time speed feedback, helping the controller maintain stable velocity. This improves precision in tasks requiring consistent motor output.

Q: Why is Class F insulation used in the L511T-019 motor?

A: Class F insulation allows the motor to handle higher operating temperatures. This extends motor life in demanding thermal environments.

Q: What is the role of IP43 protection in the L511T-019 during industrial use?

A: IP43 ensures minimal dust ingress and protects from angled water spray. This makes it suitable for indoor environments with occasional moisture or debris.

Q: How does the 3500 RPM speed benefit servo applications in automation systems?

A: High RPM enables rapid movement and reduced cycle times. It’s especially useful in high-speed sorting, pick-and-place, or textile machinery.

Q: Why is 24V DC power preferred for the L511T-019 in mobile systems?

A: 24V DC is safe, energy-efficient, and common in battery-powered platforms. It ensures compatibility with mobile robots and control panels.


Internal Product Review

  • ‘‘The L511T‑019 DC servo motor by Sanyo Denki is a precision-engineered motion control device designed for responsive and efficient operation. It delivers 110 W of mechanical power, spins up to 3500 RPM with a 0.186 N·m torque, and features IP43-rated sealing for moderate dust and water protection. It is commonly used in robotics, CNC machinery and automated assembly lines requiring accurate, closed-loop positioning.’’

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