Lichuan Dual-axis Nema24 EtherCAT Closed-Loop Stepper Motor Kit

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the Lichuan Dual-axis Nema24 EtherCAT Closed-Loop Stepper Motor Kit. This kit is designed for precision control in CNC and other automated machinery, featuring a single CL57E-2A driver capable of controlling two Nema24 closed-loop stepper motors simultaneously via EtherCAT bus communication.

The closed-loop control technology, similar to AC servo systems, incorporates a position encoder on the motor. This ensures real-time position feedback, fundamentally solving the issue of lost steps common in traditional open-loop stepping motors and providing high accuracy and reliability.

2. Package Contents

Please verify that all items listed below are included in your package:

• Nema24 Closed-Loop Stepper Motor: 2 units (Please refer to specifications for available motor torque options.)
• CL57E-2A Closed-Loop Stepper Driver (EtherCAT Control): 1 unit
• Power Cables: 2 units (Standard length: 0.5M)
• Encoder Cables: 2 units (Standard length: 3M)

Note: One driver is designed to work with two motors. Cable lengths can be customized; please contact support if different lengths are required.

3. Specifications

3.1. CL57E-2A Stepper Driver Specifications

3.2. Nema24 Closed-Loop Stepper Motor Specifications

Available motor models and their corresponding specifications:

3.3. EtherCAT Communication Specifications

4. Setup & Installation

4.1. Driver Overview

The CL57E-2A driver features several ports and indicators for easy setup and debugging:

• LED Display: For status indication.
• USB Port (Type-C): For debugging and configuration.
• EtherCAT Communication Ports (ECAT-IN, ECAT-OUT): RJ45 x 2 for serial network connection.
• IO Signal Terminal: 4 Digital Inputs (DI) and 2 Digital Outputs (DO) per axis.
• Motor Encoder Terminal Block: Connects to the motor's encoder.
• Motor Terminal Connector: Connects to the motor windings.
• Power Supply Terminal Block: For DC24V-50V input.

4.2. Wiring Diagram

A complete stepper motor control system typically includes a DC switching power supply, a touch screen (controller), the stepper drive, and the stepper motor(s). Follow the diagram below for proper connections.

4.2.1. Motor Wire Colors

• White: A
• Green: A-bar
• Black: B
• Blue: B-bar

4.2.2. Encoder Lead Colors

• Yellow: EB+
• Green: EB-
• Black: EA+
• Blue: EA-
• Red: +5VCC
• White: EGND

4.3. Physical Installation

The driver housing is constructed from special engineering plastics, offering high temperature resistance, grinding resistance, dirt resistance, and high toughness. This makes it suitable for complex industrial automation environments. The PCB plug-in terminal block design facilitates easy and safe installation, saving wiring time.

5. Operating Modes

The CL57E-2A driver supports various EtherCAT control modes, allowing for flexible application in different scenarios:

• PP (Profile Position Mode): For precise position control.
• PV (Profile Velocity Mode): For controlled velocity operation.
• HM (Homing Mode): For finding a reference position.
• CSP (Cycle Synchronized Position Mode): For synchronized position control in multi-axis systems.

The closed-loop system continuously monitors the motor's actual position via the encoder and adjusts the drive output to ensure the commanded position or velocity is accurately maintained, preventing lost steps and improving overall system performance.

6. Maintenance

To ensure optimal performance and longevity of your Lichuan stepper motor kit, follow these general maintenance guidelines:

• Keep Clean: Regularly clean the driver and motors to prevent dust and debris accumulation, which can affect cooling and component lifespan.
• Check Connections: Periodically inspect all wiring connections (power, motor, encoder, EtherCAT) to ensure they are secure and free from damage. Loose connections can lead to intermittent operation or system failure.
• Environmental Conditions: Operate the kit within its specified environmental conditions (temperature, humidity) to prevent damage.

7. Troubleshooting

If you encounter issues with your stepper motor kit, consider the following basic troubleshooting steps:

• No Power: Ensure the DC power supply is connected correctly and providing the specified voltage (DC20-50V). Check power cable connections.
• Motor Not Moving/Erratic Movement:
  • Verify all motor and encoder cable connections are correct and secure. Refer to the wiring diagrams.
  • Check for any obstructions preventing motor movement.
  • Ensure the control signals from your controller are being received by the driver.
• EtherCAT Communication Issues:
  • Check EtherCAT cable connections between the driver and your EtherCAT master/controller.
  • Verify network configuration and addressing.
• Overheating: Ensure adequate ventilation around the driver and motors. Check if the motor current settings are appropriate for your application.

For more complex issues, please refer to the technical support section.

8. User Tips

No specific user tips were available from reviews or Q&A for this product at this time. However, general best practices for stepper motor systems include:

• Always ensure proper grounding for all components to prevent electrical noise and ensure safety.
• When configuring the driver, start with conservative settings and gradually increase parameters as needed for your specific application.
• Regularly back up your controller's configuration settings.

9. Warranty & Support

For technical support, inquiries, or warranty information, please contact Lichuan directly:

• Contact Person: Annie Cheng
• Skype: annie_5543
• WhatsApp: +86 13714817266
• Email: annie@xlichuan.com

Lichuan is a factory direct sale manufacturer specializing in stepper motor drivers and servo motors with drivers for over 15 years, based in Shenzhen, China. They offer professional support and documentation.