Lichuan DC Open Loop Stepper Motor Drivers Kit EtherCAT 0.45N.m 2 Phase Nema17 DC24V～50V 2.0A

High-Performance EtherCAT NEMA17 Open Loop Stepper Motor Kit for Compact Motion Control

Lichuan DC Open Loop Stepper Motor Drivers Kit is designed for precision motion applications that require compact mechanical dimensions, networked control, stable positioning, and simplified machine integration.

This 2-phase NEMA17 stepper motor kit combines a stepper motor with an EtherCAT-based open-loop stepper drive architecture, providing a practical solution for OEM equipment manufacturers, system integrators, automation engineers, CNC builders, laboratory equipment developers, and advanced motion-control users.

With available holding torque options of 0.45 N·m, 0.52 N·m, and 0.74 N·m, a specified supply range of DC24V–50V, and a 2.0A current configuration, this DC Open Loop Stepper Motor Drivers Kit is suitable for compact multi-axis machines where efficient wiring, distributed control, repeatable motion, and cost-effective automation are important.

The standardized NEMA17 motor platform also makes this solution attractive for applications where installation space is limited while reliable stepper motion is still required.

Product Overview

Recommended H2 | 28–32 px

The Lichuan DC Open Loop Stepper Motor Drivers Kit is a coordinated motor-and-drive solution developed for EtherCAT-connected motion systems.

Unlike a standalone stepper motor, a complete motor driver kit provides a matched motion-control platform that reduces compatibility concerns during machine development. The NEMA17 two-phase stepper motor provides incremental rotary motion, while the EtherCAT stepper driver handles the power stage and motion-control interface.

This architecture is particularly useful in machines that require multiple axes to communicate through an industrial Ethernet network.

Lichuan publicly lists EtherCAT bus stepper drivers within its dedicated bus driver portfolio, alongside RS485 and CANopen stepper solutions.

Key Product Configuration

Note: The exact torque-to-motor-model mapping, driver model, peak-current setting, connector definition, step resolution, electrical protection functions, and mechanical dimensions should be confirmed against the final product datasheet before publication.

Product Features

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EtherCAT-Based Industrial Motion Control

The core advantage of this DC Open Loop Stepper Motor Drivers Kit is its EtherCAT networking capability. EtherCAT allows multiple motion-control devices to be integrated into a distributed control architecture, helping machine builders reduce point-to-point wiring and improve synchronization between axes.

NEMA17 Compact Mechanical Design

The NEMA17 form factor is widely used in compact automation equipment and motion assemblies. Its compact footprint makes the kit suitable for equipment where cabinet space, actuator size, and mechanical packaging are important design considerations.

Three Torque Options

The product configuration provides three holding torque choices:

• 0.45 N·m
• 0.52 N·m
• 0.74 N·m

This gives engineers more flexibility when selecting a motor according to load requirements, acceleration, transmission ratio, and installation constraints.

Open Loop Motion Architecture

An open-loop stepper system does not require an encoder feedback loop for normal positioning control. The controller sends motion commands while the driver energizes the motor phases according to the commanded step sequence.

This results in a relatively simple architecture with fewer feedback components and lower system complexity compared with closed-loop stepper or servo systems.

DC24V–50V Power Platform

The specified DC24V–50V supply range supports low-voltage industrial machine architectures and can be considered for equipment powered by commonly used DC control supplies.

2.0A Current Configuration

The specified 2.0A motor-drive configuration provides a higher current class for applications requiring stronger motor utilization than smaller compact stepper solutions.

Product Technology

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How the DC Open Loop Stepper Motor Drivers Kit Works

A stepper motor converts controlled electrical phase energization into discrete mechanical angular movement.

The controller generates a motion command. The EtherCAT network transfers control information to the stepper drive. The drive then regulates current through the motor windings in a defined sequence.

The electromagnetic field generated inside the two-phase stepper motor interacts with the rotor, causing the shaft to rotate by incremental steps.

The basic motion chain can be represented as:

Motion Controller → EtherCAT Network → Stepper Driver → 2-Phase NEMA17 Motor → Mechanical Load

In an open-loop system, the controller generally assumes that the motor follows the commanded motion. Therefore, the application must be correctly sized for the required load, acceleration, speed, friction, inertia, and available torque.

This is one of the major differences between an open-loop stepper system and an encoder-based closed-loop stepper system.

EtherCAT Communication Architecture

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EtherCAT is particularly useful for automation systems requiring centralized control with distributed field devices.

For a multi-axis machine, the basic architecture can be structured as:

Industrial PC / PLC / Motion Controller

↓

EtherCAT Network

↓

EtherCAT Stepper Driver

↓

NEMA17 Stepper Motor

↓

Ball Screw / Belt / Lead Screw / Gear / Linear Mechanism

This architecture is useful for machine builders because the same communication infrastructure can be used to coordinate several axes.

Lichuan's published EtherCAT stepper-drive information identifies RJ45 networking and 2×100 Mbps full-duplex transmission on its relevant EtherCAT bus stepper platform. Because the public pages can correspond to different driver variants, verify these interface specifications against the exact 2.0A product before publishing them as product-specific claims.

Product Advantages

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1. Lower System Complexity

The DC Open Loop Stepper Motor Drivers Kit avoids the additional encoder-feedback architecture required by closed-loop motion systems when feedback is not necessary for the application.

2. Cost-Effective Motion Control

For applications with predictable loads and moderate positioning requirements, an open-loop stepper solution can provide a practical balance between control capability and system cost.

3. Compact Installation

The NEMA17 motor format is suitable for compact machine assemblies, small automation equipment, laboratory devices, desktop CNC equipment, and other space-constrained systems.

4. Networked Multi-Axis Control

EtherCAT communication makes the kit suitable for machine architectures where several axes need to be integrated into a common industrial communication network.

5. Flexible Torque Selection

The 0.45 / 0.52 / 0.74 N·m configurations allow engineers to select the appropriate motor according to mechanical load requirements rather than using a single motor size for every machine.

6. Easier OEM Integration

A matched motor-and-driver package simplifies sourcing and reduces the number of individual components that the machine builder needs to evaluate.

Product Applications

Recommended H2 | 28–32 px

The Lichuan DC Open Loop Stepper Motor Drivers Kit can be considered for a wide range of compact motion-control applications.

CNC and Desktop Machine Tools

Suitable for compact CNC machines, engraving equipment, positioning mechanisms, and automated tool movement where multi-axis coordinated control is required.

Automation Equipment

Useful for linear positioning units, indexing mechanisms, feeding systems, inspection machines, and automated assembly equipment.

Laboratory Automation

The compact NEMA17 form factor can be applied to sample-handling mechanisms, laboratory positioning equipment, optical positioning stages, and test instruments.

3D Printing and Digital Fabrication

Stepper motors are widely used for coordinated movement of print heads, platforms, feeders, and material-handling mechanisms.

Packaging Machinery

Potential applications include indexing, feeding, labeling, cutting, and other repetitive positioning mechanisms.

Semiconductor and Electronics Equipment

The compact architecture can be applied to material positioning and handling mechanisms where controlled incremental motion is required.

Textile and Light Manufacturing Equipment

Useful for controlled feeding, indexing, adjustment, and positioning tasks.

Robotics and Small Automation Modules

Suitable for selected auxiliary axes and compact mechanical stages where the torque and speed requirements remain within the operating envelope of the motor.

Typical Use Cases

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Recommended Mechanical Selection

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Selecting the correct DC Open Loop Stepper Motor Drivers Kit should not be based on holding torque alone.

Engineers should evaluate:

Load Torque + Acceleration Torque + Friction Torque + Safety Margin

The application should also consider:

• Required speed
• Load inertia
• Transmission efficiency
• Screw lead
• Belt reduction
• Pulley diameter
• Duty cycle
• Acceleration and deceleration
• Operating temperature
• Available DC supply
• Mechanical resonance
• Required positioning accuracy

For vertical axes, additional attention should be given to gravitational load and braking requirements.

Product Specifications

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NEMA17 Motor Parameters

Driver Parameters

Engineering note: Detailed electrical parameters such as peak current, microstep resolution, pulse frequency, protection functions, motor inductance, phase resistance, connector definitions and allowable ambient temperature should be populated from the final model datasheet.

Torque Options

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0.45 N·m Version

Designed for applications requiring a compact stepper solution with moderate holding torque.

0.52 N·m Version

A balanced choice for applications requiring additional torque reserve while maintaining the NEMA17 form factor.

0.74 N·m Version

The highest torque option in this configuration, suitable for applications requiring additional holding torque and load capacity within the appropriate speed range.

Important: Holding torque is not equivalent to available torque at operating speed. Actual selection should use the motor's torque-speed curve.

Installation Method

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Step 1 — Mechanical Installation

Mount the NEMA17 stepper motor onto a rigid mechanical structure using the appropriate mounting pattern.

Avoid excessive radial or axial loads on the motor shaft.

Step 2 — Driver Installation

Install the EtherCAT stepper driver in a properly ventilated electrical enclosure and maintain adequate clearance for heat dissipation and wiring.

Step 3 — Power Connection

Connect the DC power supply according to the driver wiring diagram.

Do not exceed the specified voltage range.

For this product configuration, the target supply range is DC24V–50V.

Step 4 — Motor Connection

Connect the two motor phases according to the official motor wiring diagram.

Incorrect phase wiring may cause abnormal vibration or failure to rotate correctly.

Step 5 — EtherCAT Connection

Connect the drive to the EtherCAT network according to the system topology and controller requirements.

Step 6 — Network Configuration

Configure the EtherCAT node and relevant motion parameters using the controller or engineering software supported by the selected system.

Step 7 — Test Run

Perform an initial low-speed test without the full mechanical load.

Verify:

• Rotation direction
• Acceleration
• Deceleration
• Position command
• Motor temperature
• Driver temperature
• Mechanical interference
• Network communication

Operating Method

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A typical operating sequence for the DC Open Loop Stepper Motor Drivers Kit is:

Power On → EtherCAT Initialization → Axis Configuration → Enable Drive → Home / Reference → Motion Command → Position Verification

Before production operation, engineers should configure acceleration and deceleration conservatively and gradually increase operating speed.

When using lead screws, timing belts, reducers, or gear mechanisms, calculate the required motor torque at the motor shaft rather than using only the external load value.

Precautions

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Electrical Safety

Always verify the DC supply polarity and voltage before connecting the driver.

Never connect or disconnect motor wiring while the driver is energized unless the manufacturer's instructions explicitly allow hot plugging.

Mechanical Safety

Do not exceed the allowable shaft load.

Make sure couplings, belts, pulleys, screws, and other transmission components are properly aligned.

Thermal Management

Stepper motors and drives can generate significant heat during continuous operation.

Provide sufficient ventilation and avoid placing the driver next to high-temperature components.

Open Loop Limitations

Because the system operates without encoder feedback, excessive load, sudden acceleration, mechanical obstruction, or insufficient torque may result in missed steps.

For applications where position verification is safety-critical, a closed-loop stepper or servo solution should be evaluated.

EMC and Cabling

For industrial installations, separate power wiring from sensitive signal cables where practical and use appropriate grounding and shielding practices according to the system design.

Production Process

Recommended H2 | 28–32 px

A professional DC Open Loop Stepper Motor Drivers Kit depends on controlled manufacturing of both the motor and electronic drive.

Motor Manufacturing

Magnetic material preparation → Stator lamination processing → Coil winding → Rotor assembly → Shaft machining → Bearing assembly → Motor assembly → Electrical inspection → Torque inspection → Final testing

Driver Manufacturing

PCB assembly → Component inspection → Soldering → Firmware / parameter configuration → Electrical testing → Communication testing → Load testing → Burn-in / reliability verification → Final inspection

Kit Assembly

Motor inspection → Driver inspection → Model matching → Accessory verification → Labeling → Packaging → Final shipment inspection

Lichuan's public materials describe the company as a stepper/servo manufacturer and provide dedicated product manuals, drawings, software and certification resources through its download center.

Quality Control

Recommended H2 | 28–32 px

Quality control for a DC Open Loop Stepper Motor Drivers Kit should cover both mechanical and electronic performance.

Key inspection items include:

• Motor winding resistance
• Insulation performance
• Phase identification
• Mechanical dimensions
• Shaft rotation
• Holding torque
• Driver electrical operation
• Communication stability
• Temperature rise
• Continuous operating stability
• Final visual inspection

For production orders, customers can request applicable inspection records, technical documentation and quality-control information according to the product configuration and commercial agreement.

Certificates and Compliance

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Lichuan's publicly available product materials reference certifications and compliance documentation including CE and RoHS on relevant product pages, while the company's download center provides access to product and certificate resources.

Available Documentation May Include

• CE Documentation
• RoHS Documentation
• Product Datasheet
• Driver Manual
• Mechanical Drawing
• 3D Drawing
• Software / Configuration Tools
• Selection Guide
• Product Catalog

Certification note: Certification claims should always be attached to the exact model or series being sold rather than applied generically across unrelated Lichuan products.

Why Choose Lichuan?

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Integrated Motor + Driver Solution

Instead of purchasing a stepper motor and driver independently, an integrated kit approach simplifies product matching and system procurement.

Industrial Motion-Control Experience

Lichuan's public product portfolio covers stepper drivers, EtherCAT bus stepper drivers, CANopen bus stepper drivers, RS485 bus stepper drivers, open-loop stepper drivers and closed-loop stepper solutions.

OEM-Friendly Product Portfolio

A broad motor and driver portfolio is valuable for machine manufacturers who need different torque levels, frame sizes, control methods and communication architectures.

Technical Integration Support

For OEM customers, correct motor selection and driver configuration can be more important than nominal torque alone. Application-based selection can help reduce commissioning risk.

B2B Industrial Customer Value

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For B2B customers, the DC Open Loop Stepper Motor Drivers Kit can provide advantages beyond the hardware itself.

For OEM Manufacturers

The kit can simplify BOM management by combining the motor and drive into one matched solution.

For System Integrators

EtherCAT communication can make the product easier to incorporate into distributed motion architectures.

For Distributors

Multiple torque options create a broader product family for different customer applications.

For Automation Engineers

The open-loop architecture provides a comparatively straightforward solution for applications that do not require encoder feedback.

For Machine Designers

The NEMA17 frame size supports compact mechanical layouts.

C2C / Individual Technical User Value

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For individual engineers, makers, developers and advanced hobby users, the product can be attractive when the project requires:

• Compact mechanical dimensions
• Networked motion control
• Repeatable incremental movement
• Higher torque than very small stepper systems
• Industrial-style communication
• Motor-driver integration

Typical projects can include CNC prototypes, robotic mechanisms, laboratory platforms, automated feeders and custom positioning systems.

Frequently Asked Questions

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What is a DC Open Loop Stepper Motor Drivers Kit?

A DC Open Loop Stepper Motor Drivers Kit is a combined stepper motor and driver solution in which the motor operates without encoder feedback under normal control. The controller commands the required movement and the driver energizes the motor phases accordingly.

What does NEMA17 mean?

NEMA17 refers to the motor's standardized mounting frame category. It is widely used in compact motion-control equipment.

Is this kit compatible with EtherCAT systems?

Yes. This product is specified as an EtherCAT-based open-loop stepper motor driver kit. Exact controller compatibility should be verified according to the relevant EtherCAT device profile and driver documentation.

What torque options are available?

The specified product configuration includes 0.45 N·m, 0.52 N·m and 0.74 N·m versions.

What is the input voltage?

The product information supplied for this configuration specifies DC24V–50V.

What is the current rating?

The supplied product configuration specifies 2.0A.

Does the motor use an encoder?

This is an open-loop stepper motor system, so an encoder is not used for normal closed-loop position feedback.

Is open loop better than closed loop?

Neither architecture is universally better. Open loop is often preferred when simplicity and cost are important and the application has predictable load conditions. Closed loop is more appropriate where position feedback and missed-step detection are important.

Can this kit be used for CNC?

Yes, it can be considered for suitable CNC and positioning equipment where the motor torque-speed characteristics meet the machine requirements.

Can it be used for 3D printers?

The NEMA17 format is widely associated with compact motion systems such as 3D printers, but the suitability of an EtherCAT driver depends on the printer controller and communication architecture.

Can it control multiple motors?

EtherCAT is designed for distributed industrial communication, making it suitable for multi-axis architectures when the controller and network configuration support the required number of axes.

Does holding torque mean torque available at high speed?

No. Holding torque is a low-speed/static specification. Motor torque generally decreases as speed increases. The actual application should be selected from the motor's torque-speed curve.

What happens if the load is too high?

An open-loop stepper system may lose steps if the required torque exceeds the available motor torque.

Does the driver require cooling?

Thermal requirements depend on operating current, duty cycle, enclosure temperature and installation conditions. Adequate ventilation should always be provided.

Can Lichuan provide customized solutions?

Lichuan publicly states that it provides customized services across its product offering. Exact customization scope should be confirmed for the requested model.

What documents can be requested?

Typical technical documentation can include manuals, drawings, 3D files, product catalogs, selection guides, software and applicable certificates. Lichuan maintains a public download center for these categories.

Customer Service

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Pre-Sales Technical Support

We help customers select the appropriate motor torque, supply voltage, driver configuration and control architecture based on the application.

Product Selection Support

For OEM projects, customers can provide:

• Load
• Required speed
• Travel distance
• Screw pitch
• Belt or gear ratio
• Acceleration
• Duty cycle
• Power supply
• Number of axes

Our technical team can then evaluate the appropriate motion-control configuration.

Integration Support

Support can cover:

Motor selection → Driver selection → EtherCAT integration → Parameter setup → Commissioning

After-Sales Support

Customers can receive technical assistance for wiring, parameter configuration, installation and troubleshooting according to the product documentation.

Warranty & Quality Assurance

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Lichuan's public product information promotes quality-control consistency and standardized warranty/service support on relevant product pages. Exact warranty terms should be stated according to the commercial terms for the specific model and order.

For B2B orders, the recommended quality-assurance package should include:

Incoming Inspection → Production Testing → Final Inspection → Shipment Verification → Technical Documentation → After-Sales Support

About Lichuan

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Lichuan is a manufacturer focused on stepper and servo motion-control products, with product categories covering open-loop stepper drivers, closed-loop stepper systems, EtherCAT bus stepper drivers, CANopen bus stepper drivers, RS485 bus stepper drivers, servo drives and integrated motor solutions.

Its product portfolio is positioned for industrial automation, OEM equipment, motion-control systems and machine-building applications.

For customers purchasing a DC Open Loop Stepper Motor Drivers Kit, the key value is not only the motor and driver hardware, but also the ability to build a more complete motion-control solution around a standardized industrial product portfolio.

Recommended Product Selection Guide

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