How to Configure CANopen or EtherCAT Protocols on an Integrated Closed Loop Stepper Motor for Smart Manufacturing?

Smart manufacturing depends on more than automated machines. Modern production facilities need connected equipment, precise motion control, real-time data exchange, and flexible communication between motors, controllers, sensors, and manufacturing execution systems. As factories move toward Industry 4.0, the ability to integrate motion-control devices into industrial networks has become an important consideration when selecting an integrated closed loop stepper motor.

CANopen and EtherCAT are two industrial communication technologies commonly considered for applications that require coordinated motion, reliable data exchange, and simplified equipment integration. However, configuring either protocol involves more than connecting a communication cable. Engineers must select compatible hardware, configure network parameters, map control and status data, establish motion-control settings, and verify communication under real operating conditions.

An integrated closed loop stepper motor combines a stepper motor, encoder, and drive electronics in one assembly. Depending on the product configuration, it may also support CANopen or EtherCAT, reducing the need for separate drive components and simplifying machine wiring. The encoder provides position feedback, allowing the control system to monitor actual rotor movement and detect discrepancies between commanded and measured positions.

In this guide, we explain how to configure CANopen and EtherCAT on integrated closed loop stepper motors for smart manufacturing, compare their technical differences, outline common commissioning problems, and identify the factors engineers and OEM purchasing teams should evaluate before choosing a motor.

1. Understanding Smart Manufacturing and Its Motion-Control Requirements

Smart manufacturing connects machines, production systems, and operational data to improve manufacturing efficiency, product consistency, and equipment availability. Instead of operating as isolated devices, production machines communicate through industrial networks and exchange information with programmable logic controllers (PLCs), industrial computers, human-machine interfaces (HMIs), and higher-level monitoring systems.

Typical smart manufacturing applications include:

• Automated assembly and precision positioning systems

• Semiconductor and electronics manufacturing equipment

• Packaging, labeling, and dispensing machines

• Automated material handling and conveyor systems

• Laboratory automation and liquid handling equipment

• CNC auxiliary mechanisms and automated inspection stations

• Industrial robots and multi-axis positioning platforms

• Smart warehouses and automated storage systems

These applications place several requirements on motion-control components.

1.1 Precise Positioning and Repeatability

Automated production processes often require a mechanism to return to a defined position repeatedly. For example, an electronic component placement machine must position components accurately, while an automated dispensing system must move its nozzle along a programmed path.

An open-loop stepper motor receives motion commands without directly measuring whether the rotor has followed the commanded movement. Under excessive load, rapid acceleration, or insufficient torque, it may lose synchronization without the controller immediately recognizing the problem.

A closed loop stepper motor uses an encoder to measure motor position and provide feedback to the drive. The drive can use this information to regulate operation, depending on its control design, and detect position errors.

For smart manufacturing, this feedback helps improve motion reliability and supports more effective fault monitoring.

1.2 Industrial Network Connectivity

Modern machines may contain dozens or hundreds of motor axes. Connecting every motor through individual pulse-and-direction signals can increase cable complexity and consume controller I/O resources.

Industrial communication protocols allow the controller to exchange commands and status information with multiple drives over a network.

CANopen is commonly used in distributed automation systems where structured communication, device profiles, and event-driven data exchange are important. EtherCAT is designed for high-performance industrial Ethernet communication and is particularly attractive for synchronized, multi-axis applications.

The correct choice depends on the machine architecture, required update rates, synchronization accuracy, controller compatibility, and overall system cost.

1.3 Compact Design and Simplified Wiring

Machine builders increasingly need smaller control cabinets, shorter installation times, and fewer individual components.

An integrated closed loop stepper motor places the motor and drive electronics in a single assembly. Some models also incorporate the encoder and communication interface within the same housing.

This arrangement can reduce external wiring and simplify installation. However, the motor still requires appropriate power connections, communication cabling, mechanical mounting, and any additional I/O or feedback connections specified by the manufacturer.

1.4 Diagnostics and Predictive Maintenance

Smart manufacturing systems need more than basic start and stop commands. Maintenance teams may need to identify position errors, overload conditions, communication interruptions, or drive faults before they cause extended production downtime.

Depending on the motor and drive implementation, CANopen or EtherCAT can provide access to status words, operating modes, diagnostic codes, position values, and other parameters.

The availability of these data depends on the device firmware and supported communication profile. Engineers should confirm which diagnostic objects and functions the selected motor actually provides.

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2. What Is an Integrated Closed Loop Stepper Motor?

An integrated closed loop stepper motor combines several motion-control components into one compact unit.

The typical assembly contains:

• Stepper motor: Produces rotary movement through electromagnetic excitation of the motor phases.

• Encoder: Measures rotor position and provides feedback to the drive.

• Integrated drive: Controls motor current and manages motion according to the supported operating modes.

• Communication interface: Connects the motor to a PLC, industrial PC, or compatible motion controller.

• Embedded control electronics: Execute drive functions, monitor operating conditions, and process commands.

Not every integrated motor includes the same electronics or communication options. Some models support pulse-and-direction control, while others offer RS485, CANopen, EtherCAT, or alternative interfaces.

Before purchasing, confirm whether the communication interface is built into the motor itself or requires an external controller or optional module.

2.1 Why Closed Loop Control Matters

Closed loop operation provides information about actual motor position rather than relying exclusively on commanded steps.

This is useful when an application involves changing loads, frequent acceleration, repeated positioning, or the need to detect abnormal motion.

Depending on the drive's control algorithm, feedback may support position-error monitoring, improved synchronization between commands and movement, and protective responses when operating limits are exceeded.

Closed loop control does not eliminate every positioning error. Mechanical backlash, coupling flexibility, encoder resolution, tuning quality, structural vibration, and load characteristics can still affect overall system accuracy.

2.2 Why Integrate the Motor and Drive?

For OEMs developing automated equipment, integration can simplify both the electrical architecture and the procurement process.

A conventional arrangement may require separate motors, drives, feedback cables, drive power wiring, and communication interfaces. An integrated solution consolidates several of these elements.

Potential advantages include:

• Reduced external motor-to-drive wiring

• More compact machine layouts

• Fewer separate components to mount and configure

• Simplified equipment assembly

• Easier replication of standardized machine designs

• Centralized access to supported motion and diagnostic functions

For machine manufacturers producing multiple equipment models, a standardized integrated motor platform can also simplify spare-parts management and production planning.

The actual cost benefit depends on the motor specification, network architecture, installation environment, and service requirements.

3. CANopen vs. EtherCAT: Which Protocol Is Better for Smart Manufacturing?

CANopen and EtherCAT solve different communication needs. Neither protocol is automatically the better choice for every integrated closed loop stepper motor application.

The following comparison describes typical protocol characteristics. Actual performance depends on the selected device, controller, network configuration, and firmware.

3.1 When Should You Choose CANopen?

CANopen can be a practical choice when the machine already uses a CANopen network or when the required motion performance does not justify a more demanding industrial Ethernet architecture.

Typical applications include:

• Packaging mechanisms

• Automated dispensing equipment

• Compact assembly machines

• Material positioning systems

• Small automated production stations

• Distributed actuators with moderate communication requirements

CANopen provides a structured communication model. PDOs are commonly used to exchange time-sensitive process data, while SDOs allow configuration and access to object-dictionary entries.

Network Management services help manage device states, including transitions between pre-operational and operational states.

If an integrated stepper motor supports the CiA 402 drive profile, the controller may also use standardized drive states and operating modes. However, support for CANopen alone does not guarantee CiA 402 compatibility.

3.2 When Should You Choose EtherCAT?

EtherCAT is often attractive when a machine requires rapid cyclic data exchange and coordinated movement across multiple axes.

Potential applications include:

• Precision assembly equipment

• High-speed packaging lines

• Multi-axis positioning platforms

• Electronics manufacturing systems

• Automated inspection machines

• Synchronized material handling equipment

EtherCAT processes data through an Ethernet-based fieldbus architecture designed for efficient cyclic communication.

Where supported by the master, slave devices, and configuration, Distributed Clocks can help synchronize operations across multiple axes.

For an integrated closed loop stepper motor, this may improve the timing consistency of coordinated commands. However, the final motion accuracy still depends on encoder performance, drive algorithms, mechanical design, control-loop tuning, and system-level timing.

3.3 A Practical Selection Rule

Choose CANopen when compatibility with an existing CANopen system, straightforward integration, and the required control performance are the primary considerations.

Choose EtherCAT when the machine architecture calls for high-speed cyclic communication, tighter coordination across multiple axes, or integration into an existing EtherCAT-based motion-control platform.

The first purchasing question should be whether the motor's communication interface is compatible with the intended controller. Protocol selection should not be based on the protocol name alone.

4. What Must Be Confirmed Before Configuring the Motor?

Before changing communication settings, we recommend verifying the motor's complete technical specification.

A configuration procedure that works for one integrated closed loop stepper motor may not work for another, even if both advertise CANopen or EtherCAT support.

4.1 Confirm the Exact Communication Variant

Check the product model, hardware revision, firmware version, and communication option.

Confirm the following:

• Whether the motor supports CANopen, EtherCAT, or both as separate product variants

• Whether a communication connector or adapter is required

• Whether the manufacturer provides an EDS file for CANopen

• Whether an ESI file is available for EtherCAT

• Whether the motor supports CiA 402 or another documented control profile

• Which operating modes and diagnostic parameters are available

Important: CANopen and EtherCAT are not interchangeable configurations. A motor designed for CANopen cannot be assumed to support EtherCAT through a software setting alone.

4.2 Confirm Electrical and Mechanical Requirements

Verify the rated voltage, current limits, power supply capacity, motor torque, speed range, and permissible operating temperature.

Also evaluate the application load, transmission ratio, coupling arrangement, acceleration profile, and required positioning accuracy.

A motor may communicate correctly but still fail to meet the application requirements if its torque margin is insufficient or the mechanical assembly introduces excessive backlash.

4.3 Prepare the Correct Configuration Files

For CANopen, the Electronic Data Sheet (EDS) typically describes the device's object dictionary, communication parameters, and supported features.

For EtherCAT, the EtherCAT Slave Information (ESI) file describes the slave device's identity and supported configuration information, allowing compatible master software to identify and configure it.

Use the file corresponding to the exact motor variant and firmware where required. An incorrect device description may result in missing parameters, incompatible process-data assignments, or configuration errors.

4.4 Establish a Safe Commissioning Environment

Before connecting the motor to a production machine:

1. Secure the motor and driven mechanism.

2. Ensure that the mechanism can move without striking mechanical limits.

3. Confirm the correct power supply and grounding arrangement.

4. Keep personnel clear of moving parts.

5. Set conservative initial speed, acceleration, and current limits where supported.

6. Make sure the machine's emergency-stop and protective systems are implemented independently of ordinary network communication.

Industrial network communication should not be treated as a substitute for a properly designed safety system.

5. How to Configure CANopen on an Integrated Closed Loop Stepper Motor

CANopen configuration generally involves setting the communication parameters, identifying the node, checking the object dictionary, establishing the network state, mapping process data, and testing motion.

The exact parameter indices, startup sequence, and available objects depend on the drive firmware.

Step 1: Connect the Motor to the CANopen Network

Connect the integrated motor to the CAN bus according to the manufacturer's wiring diagram.

CAN networks commonly use CAN_H and CAN_L signal lines. The correct connector pinout, cable specification, shielding, grounding, and termination arrangement must be verified for the particular device and installation.

For a conventional high-speed CAN network, termination is normally provided at the two physical ends of the bus. The required resistance and wiring topology should follow the applicable network specification and manufacturer instructions.

Avoid creating unintended branches or excessively long stubs, as these can affect signal integrity.

Step 2: Configure the CANopen Node ID

Each device on a CANopen network needs a unique node ID within the supported range.

The node ID may be configured through hardware switches, manufacturer software, stored parameters, or another supported method.

For example, an engineer may assign node ID 3 to one integrated stepper motor and node ID 4 to another.

The actual assignment method varies by product. If the motor uses hardware switches, confirm whether the node ID is read at startup or requires a restart before the new value takes effect.

Duplicate node IDs can cause communication conflicts and prevent reliable network operation.

Step 3: Set the CAN Bus Bitrate

The controller and all devices on the same CAN network must use compatible communication settings.

Common CANopen bitrates include 125 kbit/s, 250 kbit/s, 500 kbit/s, and 1 Mbit/s, subject to the device's supported range and the network's electrical constraints.

The maximum practical bitrate depends on cable length, wiring quality, transceiver characteristics, and network topology.

For example, a short machine network may operate at 500 kbit/s, while a longer network may require a lower bitrate.

After changing the bitrate, verify that the master and every participating device use the same setting.

Step 4: Import the EDS File into the CANopen Configuration Tool

Load the correct EDS file into the engineering software or PLC configuration environment.

The software should then identify the device's supported object dictionary entries and communication capabilities.

If the EDS file is unavailable, request the official device description and communication manual from the motor manufacturer rather than relying on guessed object indices.

The object dictionary commonly contains several groups of parameters:

• Device identification and status

• Communication settings

• PDO communication and mapping parameters

• Drive operating modes, where supported

• Target position and velocity parameters, where supported

• Actual position and status information, where supported

• Fault and diagnostic information

Not all objects are writable, and some can only be changed when the drive is in a particular state.

Step 5: Verify Network Management State

CANopen devices use Network Management services to control their communication state.

A typical commissioning sequence may involve:

1. Detecting the device on the bus.

2. Confirming that the device responds to communication requests.

3. Checking the pre-operational state.

4. Applying permitted configuration changes.

5. Starting the device and confirming its operational state.

The precise sequence depends on the master and the drive implementation.

If the node does not enter the expected state, check the node ID, bitrate, wiring, termination, power supply, and any boot-up or error messages reported by the controller.

Step 6: Configure PDO Communication

Process Data Objects allow CANopen devices to exchange application data efficiently.

Depending on the drive profile, a control PDO may contain information such as a control word, target position, or target velocity. A feedback PDO may provide a status word, actual position, or actual velocity.

The exact fields depend on the motor's supported objects and mapping configuration.

For a positioning application, the controller may need to send motion targets and receive status information during operation. PDO mapping should be configured only after confirming which entries the device supports and which transmission types are appropriate.

When commissioning several motors, ensure that each device's communication identifiers and mapping settings do not conflict.

Step 7: Configure the Drive Operating Mode

If the motor supports the CiA 402 drive profile, the controller may be able to select an operating mode such as Profile Position, Profile Velocity, or Cyclic Synchronous Position.

These modes serve different purposes:

• Profile Position: The drive executes a position target using configured motion-profile parameters.

• Profile Velocity: The drive follows a velocity target using the supported profile behavior.

• Cyclic Synchronous Position: The controller supplies position targets cyclically for synchronized motion applications.

The availability and behavior of each mode must be confirmed in the motor's documentation.

Do not assume that every CANopen integrated closed loop stepper motor supports every CiA 402 mode.

Step 8: Set Position and Motion Parameters

Configure the parameters needed for the application, such as target position, maximum velocity, acceleration, deceleration, and permitted following error where supported.

Also verify the relationship between the motor's internal units and the machine's engineering units.

For example, a controller may express travel in millimeters while the drive accepts position values in encoder counts or another internal unit. A lead screw, gearbox, or belt transmission introduces a conversion relationship between motor rotation and linear movement.

Incorrect scaling can result in a motor that communicates normally but travels the wrong distance.

Step 9: Test Commands and Feedback

Start with low-speed movement and a limited travel range.

Verify that:

• The motor accepts commands in the expected operating state.

• Actual movement corresponds to the commanded direction.

• Position feedback changes consistently with movement.

• The drive reports faults and status changes correctly.

• The motor stops or disables motion according to the configured control behavior.

• Repeated positioning produces acceptable results under the expected load.

Once basic operation is stable, gradually increase the speed, acceleration, and load while monitoring communication and drive diagnostics.

6. How to Configure EtherCAT on an Integrated Closed Loop Stepper Motor

EtherCAT configuration generally requires a compatible master controller, the correct ESI file, a supported network topology, device discovery, process-data configuration, and verification of the communication and drive states.

Compared with CANopen, the commissioning workflow is more closely tied to EtherCAT master software and the device's EtherCAT implementation.

Step 1: Confirm EtherCAT Master Compatibility

Check that the PLC, industrial PC, or motion controller supports EtherCAT master operation.

Confirm compatibility with the motor's device profile, supported process-data formats, and required synchronization features.

If the application uses a specific motion-control platform, verify that the integrated motor is supported by the platform's configuration tools or that the required device integration information is available.

Step 2: Connect the EtherCAT Network

Connect the master and motor using the manufacturer's designated EtherCAT ports and approved cabling.

EtherCAT commonly uses a line topology, although other topologies are possible with suitable devices and infrastructure.

For multiple axes, confirm the permitted connection order and port arrangement. If the motor has separate input and output ports, follow the designated direction and topology requirements.

Use the network interface specified for EtherCAT communication. A standard Ethernet connector does not automatically mean that every network interface or ordinary Ethernet switch is suitable for every EtherCAT configuration.

Step 3: Import the ESI File

Load the motor's ESI file into the EtherCAT master configuration software.

The file provides information that the master uses to identify and configure the device, including supported communication features and process-data options.

After importing the file, scan the network or add the device using the method supported by the master software.

Check that the discovered device identity matches the expected motor model and revision.

If the master reports an identity mismatch, verify the device revision, ESI file, firmware version, and vendor-specific configuration requirements.

Step 4: Verify EtherCAT Slave Communication

After connecting the device, confirm that the master detects the motor and that the EtherCAT state transitions as expected.

EtherCAT devices commonly use states including:

• INIT: Initial communication state.

• PRE-OP: Pre-operational state, commonly used for configuration.

• SAFE-OP: Safe-operational state, where input process data may be available while output behavior remains restricted according to the device implementation.

• OP: Operational state, in which process-data exchange is enabled according to the configured device behavior.

The precise transitions and permitted operations depend on the slave implementation.

If the motor fails to reach the expected state, inspect the master diagnostic log, cable connections, device identity, synchronization settings, and process-data configuration.

Step 5: Configure Process Data

EtherCAT cyclic communication uses process-data exchange between the master and slave.

If the device supports CANopen over EtherCAT (CoE), its object dictionary and supported drive profile may provide familiar concepts to engineers who have configured CANopen drives.

For a compatible CiA 402 implementation, process data may include:

• Control word

• Status word

• Target position

• Actual position

• Target velocity

• Actual velocity

• Other supported drive-specific values

The actual process-data structure must match the configuration supported by the motor.

An incorrect process-data assignment can prevent the master from enabling the drive or cause the controller to interpret values incorrectly.

Step 6: Configure the Drive Profile and Operating Mode

If the motor supports CiA 402 over CoE, select an appropriate operating mode in the controller.

For simple point-to-point positioning, Profile Position may be sufficient. For synchronized multi-axis movement, Cyclic Synchronous Position may be more appropriate if supported by both the drive and controller.

The operating mode determines how targets are generated, transmitted, and interpreted.

Before enabling the motor, verify the configured mode, control-word sequence, status-word interpretation, and any required homing or initialization procedure.

Step 7: Configure Distributed Clocks Where Supported

EtherCAT Distributed Clocks can synchronize the timing of supported slave devices.

For applications involving multiple coordinated axes, the master may configure synchronization parameters and cyclic update timing.

However, Distributed Clocks are not universally available or configured identically across all integrated stepper motors.

Check whether the selected motor supports Distributed Clocks, which synchronization modes it implements, and which cycle times are permitted.

Start with a cycle time supported by the master and slave, then verify synchronization status and motion behavior before attempting more demanding settings.

Step 8: Configure Position Scaling and Motion Limits

Set the target position units, travel limits, speed, acceleration, deceleration, and any supported following-error thresholds.

For linear mechanisms, establish the conversion between motor rotation and actual linear displacement.

For example, if a lead screw advances 5 mm per revolution, the commanded motor rotation must be converted to the corresponding linear travel. Gearboxes and other transmission elements must also be included in the calculation.

Incorrect scaling can cause positioning errors even when EtherCAT communication is functioning correctly.

Step 9: Enable the Drive and Validate Motion

Follow the drive's documented enable sequence and begin with low-speed test movements.

Monitor the master diagnostics and drive status information while testing.

Verify that:

• The motor reaches the expected EtherCAT state.

• Process data updates consistently.

• The drive enters the requested operating state.

• Position commands produce the expected movement.

• Actual position feedback remains consistent with the machine's movement.

• Communication errors and drive faults are handled as intended.

For coordinated machines, test the timing and movement of multiple axes before releasing the equipment for production.

7. How to Choose the Right Communication Settings for Smart Manufacturing

Successful configuration depends on matching the network settings to the machine's actual requirements.

7.1 Network Update Rate

The required update rate depends on the motion profile, controller architecture, and drive operating mode.

A simple positioning mechanism may not need the same cyclic update rate as a machine coordinating several axes at high speed.

For CANopen, confirm the available bitrate, PDO configuration, network loading, and expected communication timing.

For EtherCAT, confirm the supported cycle time, master capabilities, process-data size, and synchronization options.

Avoid choosing the highest available communication rate without evaluating the actual control requirements.

7.2 Position Resolution and Accuracy

Position resolution is not the same as positioning accuracy.

The encoder determines the available feedback resolution, while the drive's control strategy and the mechanical system influence how accurately the motor reaches and maintains a target.

For linear applications, evaluate the complete mechanical chain, including screw lead, gearbox ratio, coupling, backlash, stiffness, and load.

If the process requires a specified positioning tolerance, validate the assembled machine rather than relying solely on encoder counts or nominal motor step angle.

7.3 Multi-Axis Synchronization

For machines that require coordinated movement, evaluate how the controller schedules commands and how the drives execute them.

CANopen can support distributed motion-control systems, but the synchronization method and performance depend on the implementation.

EtherCAT may be preferable for applications requiring tightly coordinated cyclic control when the selected master and drives support the necessary synchronization features.

In both cases, synchronization must be tested at the system level.

7.4 Diagnostics and Fault Recovery

A production-ready configuration should include a clear strategy for handling communication loss, drive faults, following errors, and unexpected operating states.

Determine which faults are reported by the motor, which are detected by the controller, and what action the machine should take in response.

For example, a communication interruption may require the controller to stop issuing new motion commands and execute a defined recovery procedure.

The appropriate response depends on the risk assessment and machine design. Ordinary fieldbus diagnostics are not a replacement for certified safety functions.

8. Common CANopen Configuration Problems and How to Solve Them

CANopen problems often originate from inconsistent network settings, incorrect device descriptions, or an incomplete understanding of the device's supported objects.

8.1 Why the Correct EDS File Matters

The EDS file is a device description, not a universal configuration that can be applied to every CANopen motor.

Using an incorrect file can result in missing parameters, unsupported configuration attempts, or misleading engineering-software displays.

Always verify the file against the actual motor model and firmware requirements.

8.2 Why CANopen Communication Does Not Guarantee Motion

A motor can communicate successfully while remaining unable to execute movement.

Possible causes include an incorrect drive state, an active fault, an unsupported operating mode, a missing homing procedure, or invalid motion parameters.

Commissioning should therefore separate network verification from drive commissioning and mechanical validation.

9. Common EtherCAT Configuration Problems and How to Solve Them

EtherCAT commissioning issues may involve device recognition, state transitions, process-data configuration, synchronization, or compatibility with the master.

9.1 Check the EtherCAT State Before Changing Parameters

When a motor does not enter the operational state, repeatedly changing motion parameters is unlikely to solve the underlying communication problem.

Start by identifying the exact state reported by the master and reviewing the corresponding diagnostic messages.

Check the ESI file, device identity, process-data configuration, and synchronization requirements first.

Only after communication is stable should you proceed with drive enablement and motion testing.

9.2 Verify Synchronization Rather Than Assuming It

An EtherCAT connection does not automatically guarantee synchronized motion.

The master, motor firmware, operating mode, and selected timing configuration must support the required synchronization method.

For demanding applications, validate actual axis behavior using controller diagnostics and appropriate measurement tools.

10. CANopen vs. EtherCAT: A Realistic Application Selection Example

Choosing between CANopen and EtherCAT for an integrated closed loop stepper motor depends on the machine's motion requirements, existing control architecture, communication cycle time, and future expansion plans. For smart manufacturing equipment, the right protocol should simplify integration while delivering the positioning performance, reliability, and diagnostic capabilities the application requires.

To understand the practical differences, consider two common OEM projects: a compact automated dispensing machine and a high-speed multi-axis assembly system.

10.1 Application Example 1: CANopen for an Automated Dispensing Machine

An equipment manufacturer is developing an automated dispensing machine used to apply adhesives, lubricants, or other fluids to components on a production line. The machine includes several positioning axes responsible for moving the dispensing head, adjusting the workpiece position, and controlling auxiliary mechanisms.

The manufacturer already uses a PLC with a CANopen communication interface and wants to simplify motor wiring without significantly changing the existing control architecture.

In this situation, a CANopen integrated closed loop stepper motor may be an appropriate solution.

The integrated design combines the stepper motor, encoder, and drive electronics in one unit, reducing the number of separate components required for each axis. CANopen enables the PLC to exchange motion commands, status information, and supported diagnostic data with the connected motors.

The encoder provides position feedback, allowing the drive to monitor actual rotor movement and detect position discrepancies according to its control strategy. This is particularly useful when dispensing consistency depends on repeatable positioning and controlled movement.

Key configuration tasks include:

• Assigning a unique CANopen node ID to each motor.

• Setting a compatible CAN bus bitrate.

• Importing the correct Electronic Data Sheet (EDS) file into the controller software.

• Configuring supported Process Data Objects (PDOs) for motion commands and feedback.

• Setting the appropriate operating mode, speed, acceleration, and position parameters.

• Testing positioning repeatability under representative operating loads.

The engineering team should also verify the communication cycle requirements, network loading, and the controller's ability to manage all connected axes.

Why CANopen makes sense: The machine already uses CANopen, and its positioning requirements can be met without introducing a different fieldbus architecture. This can reduce integration effort and help the manufacturer standardize the control system across multiple machine models.

10.2 Application Example 2: EtherCAT for a High-Speed Assembly Machine

Consider a different OEM developing a high-speed assembly machine for electronics manufacturing. The equipment uses multiple motion axes to position components, move fixtures, and coordinate mechanical operations within a defined production cycle.

The machine requires consistent timing between axes, rapid cyclic data exchange, and centralized control through an industrial PC or EtherCAT-capable PLC.

For this application, an EtherCAT integrated closed loop stepper motor may be the better choice, provided the motor supports the required process-data configuration and synchronization features.

EtherCAT allows the controller to exchange cyclic process data with connected drives. Where supported by the master and motor, Distributed Clocks can synchronize device timing to support coordinated multi-axis motion.

During commissioning, the engineering team typically needs to:

• Import the correct EtherCAT Slave Information (ESI) file.

• Scan the network and verify the identity of each connected motor.

• Confirm the required EtherCAT communication states.

• Configure the supported process-data structure.

• Verify CiA 402 compatibility if the application relies on that drive profile.

• Select a supported operating mode, such as Cyclic Synchronous Position, when appropriate.

• Configure cycle time and synchronization settings where supported.

• Validate actual movement, position feedback, and multi-axis coordination.

The manufacturer should confirm that the selected motor supports the required cycle time and synchronization method. EtherCAT connectivity alone does not guarantee that every drive supports every motion-control feature.

Why EtherCAT makes sense: The machine depends on coordinated motion and cyclic communication, and the control architecture is already designed around EtherCAT. Using compatible integrated closed loop stepper motors can simplify the distributed drive layout while supporting the required control strategy.

10.3 CANopen vs. EtherCAT: Practical Comparison for OEMs

The table illustrates typical application choices rather than absolute protocol limitations. CANopen can support demanding automation tasks when the complete system is designed appropriately, and EtherCAT can serve applications that do not require the most advanced synchronization features.

10.4 What If an OEM Is Developing a New Smart Manufacturing Platform?

For a new machine design, the decision should be based on the entire automation architecture rather than the motor alone.

We recommend evaluating five factors before selecting the communication protocol.

Controller compatibility

Confirm which industrial networks the PLC or motion controller supports. Selecting a motor that communicates natively with the existing controller can reduce integration complexity.

Motion performance

Calculate the required torque, operating speed, acceleration, positioning repeatability, and motion cycle time. Confirm that the motor and drive can meet these requirements under the actual load.

Number of axes

Consider the number of motors, expected network traffic, required update rate, and whether multiple axes need coordinated movement.

Diagnostics and maintenance

Determine which operating parameters, status information, and fault codes are available through the communication interface. These features can help maintenance teams identify problems and reduce troubleshooting time.

Future expansion

If the machine will eventually add more axes or require tighter coordination, evaluate whether the selected controller and network can accommodate the expected development.

10.5 How to Choose the Right Integrated Closed Loop Stepper Motor from JKONGMOTOR

For OEMs developing automated dispensing equipment, assembly machines, packaging systems, or other smart manufacturing solutions, motor selection should begin with a clear technical specification.

When evaluating JKONGMOTOR integrated closed loop stepper motors, confirm the following requirements with the supplier:

• Communication protocol: CANopen, EtherCAT, or another supported interface.

• Motor performance: Rated torque, available torque at operating speed, voltage, current, and duty cycle.

• Feedback capability: Encoder specifications, position monitoring, and supported error detection.

• Drive functions: Available operating modes, motion parameters, and diagnostic information.

• Mechanical configuration: Frame size, shaft dimensions, mounting requirements, and gearbox options where available.

• Integration documentation: EDS or ESI files, wiring diagrams, communication manuals, and controller compatibility information.

For product information, visit the JKONGMOTOR Integrated Servo Motor Solutions page or explore the Integrated Servo Motor Supplier page.

By matching the communication protocol to the controller architecture and the motor to the actual motion requirements, manufacturers can build a more consistent, maintainable, and scalable smart manufacturing system.

11. What Should OEMs Evaluate When Purchasing an Integrated Closed Loop Stepper Motor?

For OEMs, choosing a motor is a system-integration decision rather than a simple component purchase.

The following factors should be considered before selecting a supplier.

11.1 Communication Protocol and Controller Compatibility

Confirm that the motor supports the required protocol and that the supplier provides sufficient documentation for integration.

For CANopen, request the EDS file, object dictionary information, supported communication settings, and drive-profile documentation where applicable.

For EtherCAT, request the ESI file, supported process-data configuration, firmware compatibility information, and synchronization documentation where applicable.

Also verify that the intended PLC or motion controller can configure and operate the device.

11.2 Torque, Speed, and Load Characteristics

Evaluate holding torque, available torque at operating speed, acceleration requirements, load inertia, and expected duty cycle.

Stepper motor torque generally decreases as speed increases, so the rated holding-torque figure alone is not enough to determine suitability.

For vertical axes or mechanisms that may be driven by gravity, evaluate the required braking or load-holding strategy separately. Do not assume that a closed loop stepper motor can safely hold every load without additional measures.

11.3 Encoder Performance and Position Feedback

Review encoder resolution, feedback behavior, position-error monitoring, and supported fault detection.

For applications involving fine positioning, consider the entire mechanical system rather than relying exclusively on encoder resolution.

Ask whether the drive provides the diagnostic data needed by the control software and maintenance team.

11.4 Environmental Protection and Thermal Performance

The motor must operate reliably under the actual machine conditions.

Evaluate ambient temperature, dust, moisture, vibration, installation orientation, available airflow, and enclosure requirements.

If the machine operates in a washdown area or an environment with conductive particles, confirm the product's documented ingress protection rating and environmental limitations.

An integrated design does not eliminate thermal constraints. The drive electronics and motor still generate heat, and installation conditions can affect allowable current and duty cycle.

11.5 Documentation and Engineering Support

A supplier should be able to provide the information necessary to integrate the motor into a production system.

Useful deliverables include:

• Motor and drive datasheets

• Wiring diagrams and connector pinouts

• Communication manuals

• EDS or ESI files, as applicable

• Parameter lists and configuration instructions

• Fault-code definitions

• Firmware and revision information

• Test procedures and application guidance

For OEM projects, the availability of these resources can significantly influence engineering time and commissioning efficiency.

11.6 Customization and Long-Term Supply

Some machines require nonstandard shaft dimensions, gearbox ratios, cable lengths, connectors, mounting arrangements, or communication interfaces.

Before finalizing a supplier, determine whether the manufacturer can support the required configuration and maintain consistency across production batches.

For long-term equipment programs, also consider firmware change management, product revision control, replacement compatibility, and technical support after delivery.

12. How JKONGMOTOR Can Support Integrated Closed Loop Stepper Motor Projects

For OEMs and automation equipment manufacturers, selecting an integrated closed loop stepper motor involves more than comparing torque ratings, encoder resolution, or motor dimensions. The motor must work reliably with the machine's controller, communication network, mechanical transmission, and operating environment. It should also support the manufacturer's production goals, installation requirements, and long-term maintenance strategy.

JKONGMOTOR focuses on integrated motion-control solutions that combine motor technology with drive electronics and feedback capabilities in compact assemblies. For smart manufacturing projects, the objective is to help equipment manufacturers simplify motion-system integration, reduce unnecessary wiring, and develop a motor configuration that matches the application's actual requirements.

12.1 Integrated Motion-Control Solutions for Smart Manufacturing

Modern manufacturing equipment often requires compact motors that can communicate with a central controller while providing consistent positioning and useful operating feedback.

An integrated closed loop stepper motor combines a stepper motor, encoder, and drive electronics into one assembly. Depending on the selected product configuration, additional communication and control functions may also be available.

For OEM applications, this integrated architecture can offer several practical advantages:

• Simplified system architecture: Combining the motor and drive reduces the need to install a separate drive for each motor.

• Reduced external wiring: An integrated design can reduce motor-to-drive wiring and simplify machine assembly.

• Position feedback: Encoder feedback allows the drive to monitor rotor movement and detect position discrepancies according to its control capabilities.

• Flexible machine integration: Supported communication interfaces can connect the motor to compatible PLCs, industrial PCs, and automation controllers.

• Consistent equipment design: Standardized motor configurations can simplify engineering, assembly, and replacement procedures across multiple machine models.

These advantages are particularly relevant to automated assembly equipment, packaging machinery, dispensing systems, laboratory automation, and precision positioning platforms.

The final benefits depend on the selected motor, its communication options, and the requirements of the complete machine.

12.2 CANopen and EtherCAT Integration Support

Communication compatibility is one of the first issues we recommend addressing during motor selection.

A motor may offer suitable torque and positioning performance but still require additional engineering work if its communication interface is incompatible with the intended controller.

For projects using CANopen, engineers should confirm the availability of the appropriate Electronic Data Sheet (EDS), object-dictionary documentation, supported communication settings, and operating modes.

For EtherCAT-based machines, the key requirements include the correct EtherCAT Slave Information (ESI) file, process-data configuration, supported drive profile, and synchronization capabilities where required.

When evaluating a JKONGMOTOR motor for either network, OEMs should confirm the following details for the exact model:

• Whether CANopen or EtherCAT is supported by the selected variant.

• Which PLCs or motion controllers can be used with the device.

• Whether the motor supports CiA 402 or another required control profile.

• Which position, velocity, status, and diagnostic parameters are accessible.

• Whether the intended cycle time and synchronization requirements are supported.

• Which configuration software, firmware version, and device-description files are required.

CANopen and EtherCAT should be treated as distinct communication options. Support for one does not automatically imply support for the other. Confirming these requirements before purchasing helps avoid compatibility problems during commissioning.

12.3 Motor Selection Based on Real Application Requirements

The correct motor specification depends on the mechanical load and motion profile, not simply the motor's frame size or nominal torque.

For example, a motor driving a lead-screw positioning module may require a different speed and torque profile from one used in a rotary indexing mechanism. Similarly, a packaging machine operating continuously may impose different thermal and duty-cycle requirements from an intermittent positioning system.

We recommend evaluating the following parameters before finalizing the motor configuration.

Torque and speed: Determine the required operating torque across the complete speed range, including acceleration and deceleration. Holding torque alone is not sufficient to establish whether a stepper motor can meet the application's requirements.

Encoder and positioning requirements: Define the required positioning repeatability, feedback resolution, and permissible position error. Consider the effects of backlash, coupling flexibility, and mechanical stiffness.

Power supply: Confirm the available voltage, current requirements, and power-supply capacity for the intended operating conditions.

Mechanical installation: Review the frame size, mounting arrangement, shaft dimensions, transmission type, and available installation space.

Operating environment: Evaluate temperature, vibration, dust, moisture, cooling conditions, and enclosure requirements.

Communication architecture: Specify the network protocol, controller, required update rate, and diagnostic functions.

By defining these parameters at the beginning of a project, OEMs can select a motor that better matches the application and avoid unnecessary changes during machine development.

12.4 OEM/ODM Customization for Equipment Manufacturers

Standard motor specifications do not always match the requirements of specialized automation equipment. OEMs may need customized mechanical interfaces, specific cable arrangements, different transmission configurations, or a particular communication option.

Depending on the product platform and manufacturing capabilities available for the project, customization discussions may cover:

• Motor dimensions and mounting interfaces

• Shaft configurations and mechanical connections

• Gearbox selection and transmission ratios

• Encoder and feedback requirements

• Cable lengths and connector arrangements

• Communication-interface options

• Integration constraints related to the machine enclosure

For manufacturers developing multiple equipment models, a consistent customized motor platform can help standardize the electrical design and simplify production.

However, customization should be based on a documented technical specification. Communication features, protection ratings, firmware functions, and performance limits must be confirmed rather than assumed to be available on every model.

12.5 Prototype Testing and System Validation

A successful motor selection process should include validation under conditions representative of the final machine.

Before moving into batch production, we recommend testing the integrated closed loop stepper motor in the intended mechanical assembly and control environment.

A typical validation process includes:

1. Mechanical verification: Confirm mounting compatibility, shaft alignment, coupling fit, and transmission behavior.

2. Communication testing: Verify device recognition, parameter configuration, command exchange, and status reporting.

3. Motion testing: Evaluate positioning repeatability, direction, speed, acceleration, and deceleration.

4. Load testing: Test the motor under representative operating loads and duty cycles.

5. Thermal evaluation: Check motor and drive temperatures under expected operating conditions.

6. Fault-response testing: Verify the system's response to communication interruptions, drive faults, and other anticipated abnormal conditions.

7. Production documentation: Record validated parameters, firmware versions, wiring details, and configuration files.

For CANopen, testing should include node addressing, bitrate compatibility, and supported PDO or SDO operations. For EtherCAT, validation should include slave-state transitions, process-data exchange, and synchronization functions where required.

This process helps identify integration issues before they affect production equipment.

12.6 Technical Documentation and Long-Term Maintainability

For OEM projects, complete documentation is an important part of product selection.

A motor that performs well during an initial test can still create difficulties if engineers cannot access the necessary configuration information or reproduce the original settings during maintenance.

Before finalizing a project, confirm the availability of relevant documentation, including:

• Motor and drive datasheets

• Electrical wiring diagrams

• Connector pin assignments

• Communication manuals

• EDS or ESI files, as applicable

• Supported operating modes and parameter lists

• Fault-code descriptions

• Firmware and hardware revision information

For equipment produced in batches, maintaining a record of the approved motor configuration can simplify replacement, servicing, and future production runs.

We also recommend defining how product revisions will be managed. If a motor's hardware, firmware, or communication behavior changes, the OEM should understand whether the change affects the existing controller configuration or machine validation.

12.7 Working with JKONGMOTOR on Your Next Motion-Control Project

When discussing a new application with JKONGMOTOR, providing a clear technical brief helps establish whether the available integrated closed loop stepper motor platform is suitable.

Useful project information includes:

• Application and machine type

• Required torque and operating speed

• Supply voltage and current constraints

• Encoder and positioning requirements

• Preferred communication protocol

• PLC or motion-controller model

• Mechanical dimensions and mounting requirements

• Expected operating cycle and environmental conditions

• Estimated annual demand and customization requirements

This information helps focus the discussion on the motor's actual operating conditions rather than relying on general product descriptions.

13. Application of Integrated Closed Loop Stepper Motors in Smart Manufacturing

Smart manufacturing is transforming how factories design, operate, and maintain automated production equipment. Modern manufacturing systems increasingly rely on precise motion control, real-time equipment monitoring, industrial communication networks, and flexible production processes. In this environment, the integrated closed loop stepper motor has become a practical motion-control option for equipment manufacturers seeking a balance between positioning performance, compact design, and system integration.

By combining a stepper motor, encoder, and drive electronics in one assembly, an integrated closed loop stepper motor can reduce external wiring and simplify machine architecture. Depending on the model, it may also support industrial communication protocols such as CANopen, EtherCAT, or RS485-based protocols, allowing it to connect with compatible controllers and automation systems.

Unlike a conventional open loop stepper motor, a closed loop design uses encoder feedback to monitor actual rotor movement. This helps the drive identify position discrepancies and manage motor operation according to its control capabilities. For smart manufacturing applications involving variable loads, frequent positioning, or automated process sequences, this feedback can improve motion monitoring and operational reliability.

From automated assembly and packaging to precision dispensing and intelligent material handling, integrated closed loop stepper motors offer several advantages for modern production equipment.

13.1. Automated Assembly and Precision Positioning

Automated assembly is one of the most common applications for integrated closed loop stepper motors. Manufacturing lines often need to move components into precise positions before fastening, inserting, inspecting, or assembling them.

Examples include electronic component assembly, small-part insertion, fixture positioning, and automated fastening equipment.

In these applications, the motor must deliver repeatable movement while responding to changes in mechanical load and production cycle requirements.

An integrated closed loop stepper motor provides encoder feedback that allows the drive to monitor rotor position. This is useful when the mechanism repeatedly moves between predefined positions or when the equipment needs to identify abnormal movement.

The integrated motor-and-drive design can also reduce the number of separate components installed inside the machine.

Key benefits for automated assembly include:

• Repeatable positioning for repetitive assembly operations

• Encoder-based monitoring of actual motor movement

• Compact installation in space-constrained equipment

• Reduced external wiring between the motor and a separate drive

• Potential integration with PLCs and industrial motion controllers

For more demanding applications, engineers should evaluate the required positioning tolerance, acceleration, settling time, load inertia, and mechanical backlash. Encoder feedback improves observability, but the accuracy of the complete assembly still depends on the motor, drive, transmission, and machine structure.

13.2. Electronics Manufacturing and Semiconductor Equipment

Electronics manufacturing requires controlled movement when handling circuit boards, positioning components, adjusting inspection equipment, or moving small mechanical assemblies.

Some semiconductor and electronics processes also require compact mechanisms that can operate within tightly constrained installation spaces.

Integrated closed loop stepper motors can be used in equipment such as:

• PCB handling and positioning systems

• Component feeding mechanisms

• Automated optical inspection equipment

• Precision adjustment platforms

• Small pick-and-place mechanisms

• Automated testing fixtures

The compact construction helps equipment designers reduce the space occupied by separate motor-drive assemblies. Encoder feedback can also help monitor movement during repetitive positioning operations.

For networked equipment, a compatible CANopen or EtherCAT interface may simplify communication between the motor and the machine controller. The choice depends on the controller architecture, required update rate, and motion coordination needs.

When selecting a motor for electronics manufacturing, engineers should consider vibration, heat generation, positioning repeatability, and environmental requirements. Applications involving cleanrooms or sensitive processes may also require special attention to lubrication, particle generation, materials, and cable routing.

The motor's actual suitability must be confirmed against the requirements of the specific manufacturing environment.

13.3. Automated Packaging and Filling Machines

Packaging equipment often performs repetitive operations at relatively high production rates. Typical movements include feeding packaging material, positioning containers, adjusting sealing mechanisms, indexing products, and controlling dispensing heads.

An integrated closed loop stepper motor can help manage these movements while providing feedback about actual rotor position.

For example, a packaging machine may use separate motor axes to position a container, move a filling nozzle, and adjust a labeling mechanism. Each axis requires a suitable combination of torque, speed, and movement repeatability.

The integrated design can simplify electrical installation, particularly when several motors are distributed throughout a machine.

Potential benefits include:

• Simplified motor-drive installation

• Repeatable movement between programmed positions

• Position monitoring during repetitive cycles

• Reduced cabinet space for separate drive components

• Easier integration into compatible automated control systems

However, packaging applications vary considerably. A slow indexing mechanism has different requirements from a high-speed cutting or sealing axis.

Before choosing an integrated closed loop stepper motor, manufacturers should calculate the required torque and speed, evaluate acceleration and deceleration profiles, and confirm that the drive can support the intended cycle rate.

The motor should also be tested under realistic production loads to verify thermal performance and positioning consistency.

13.4. Precision Dispensing and Liquid Handling Automation

Precision dispensing and liquid handling equipment requires controlled movement to deliver fluids accurately and consistently. These systems are widely used in laboratory automation, chemical analysis, medical equipment, and industrial fluid processing.

Common applications include:

• Automated pipetting systems

• Syringe pump mechanisms

• Liquid dispensing equipment

• Reagent handling systems

• Laboratory sample preparation

• Adhesive and lubricant dispensing

• Automated dosing mechanisms

In a syringe pump, for example, a motor drives a lead screw or another transmission mechanism to move a syringe plunger. The resulting fluid displacement depends on the mechanical design, syringe dimensions, fluid properties, and movement profile.

An integrated closed loop stepper motor can monitor rotor movement and help detect discrepancies between commanded and actual motion. This can support more reliable mechanical positioning and improve the ability to diagnose abnormal operation.

The motor's feedback function does not directly measure liquid volume or guarantee dispensing accuracy. Fluid pressure, syringe compliance, tubing elasticity, leakage, backlash, and calibration can all affect the final result.

For liquid handling equipment, we recommend evaluating:

• Positioning repeatability and encoder performance

• Low-speed motion smoothness

• Lead-screw accuracy and backlash

• Required dispensing speed and force

• Thermal stability during continuous operation

• Compatibility with the machine's control system

For medical and laboratory applications, additional requirements may include electrical safety, cleaning procedures, material compatibility, and application-specific regulatory validation.

13.5. Automated Material Handling and Conveyor Systems

Smart factories rely on automated material handling systems to move components, containers, and finished products between production stations.

Integrated closed loop stepper motors can be used in selected conveyor mechanisms, transfer systems, indexing tables, and compact positioning devices.

Typical applications include:

• Small conveyor positioning systems

• Automated feeders

• Product transfer mechanisms

• Sorting equipment

• Workpiece indexing tables

• Adjustable guide mechanisms

• Compact material handling modules

These applications often involve changing loads or repeated start-stop operation. Encoder feedback can help monitor motor movement, while an integrated drive can reduce the amount of external wiring required.

For mechanisms that need increased output torque at a lower speed, a geared integrated closed loop stepper motor may be appropriate. The gearbox ratio must be selected based on the required output speed, torque, efficiency, backlash, and service life.

For longer conveyors or systems with high inertia, engineers should also consider whether a stepper motor provides the required continuous torque and dynamic performance. Larger or higher-speed material handling systems may be better served by a servo motor or another drive technology.

The decision should be based on calculated load requirements rather than the convenience of an integrated motor alone.

13.6. Automated Inspection and Quality Control Equipment

Automated inspection systems need to position cameras, sensors, test probes, and workpieces accurately enough to collect repeatable measurements.

An integrated closed loop stepper motor can provide controlled movement for inspection stages, adjustable fixtures, optical positioning mechanisms, and automated test equipment.

For example, an inspection machine may move a camera across a component, position a test probe at several measurement points, or adjust a fixture before image capture.

In these applications, repeatability and stability are often more important than maximum motor speed.

The integrated motor architecture can simplify the equipment's electrical design, while encoder feedback helps monitor the motion used to position the inspection mechanism.

Potential advantages include:

• Repeatable positioning between inspection points

• Easier integration into automated test sequences

• Reduced external motor-drive wiring

• Compact construction for multi-station equipment

• Access to supported motion and diagnostic data

To achieve the required measurement consistency, engineers must consider the complete positioning chain. Motor feedback alone cannot eliminate errors caused by mechanical vibration, fixture movement, backlash, thermal expansion, or insufficient structural rigidity.

For applications with demanding accuracy requirements, the machine may need additional linear feedback or direct measurement at the point of operation.

13.7. Smart Warehousing and Automated Storage Systems

Smart warehouses use automated equipment to store, retrieve, sort, and transfer goods with limited manual intervention.

Integrated closed loop stepper motors can be suitable for selected positioning mechanisms in warehouse automation, particularly where compact dimensions and repeatable movement are important.

Potential applications include:

• Small parcel sorting mechanisms

• Positioning units in automated storage equipment

• Adjustable conveyor guides

• Automated feeder systems

• Compact transfer platforms

• Auxiliary positioning axes in warehouse machinery

For networked warehouse equipment, the motor's communication interface should match the system controller. CANopen may fit systems built around an existing CANopen network, while EtherCAT may be suitable for machines requiring coordinated cyclic motion and supported synchronization features.

When selecting motors for warehouse automation, consider operating hours, acceleration frequency, mechanical load, dust exposure, temperature, and maintenance accessibility.

For heavy-duty AGVs, AMRs, or high-load transport systems, the torque, speed, braking, and dynamic performance requirements may exceed the capabilities of a conventional integrated stepper motor. In such cases, an integrated servo motor or another purpose-built drive system may be more appropriate.

13.8. CNC Auxiliary Mechanisms and Automated Tool Positioning

Computer numerical control (CNC) equipment and other machine tools contain auxiliary mechanisms that require controlled movement.

Depending on the machine design, integrated closed loop stepper motors can drive tool adjustment mechanisms, small positioning stages, feeders, and auxiliary axes.

The integrated construction can reduce the number of separately mounted components, which may be useful when retrofitting equipment or designing compact machines.

Encoder feedback also allows the drive to monitor rotor movement and identify certain position discrepancies.

However, not every CNC axis is suitable for stepper technology. High-speed contouring, demanding dynamic response, large loads, and stringent accuracy requirements may require a dedicated servo system.

Before selecting an integrated closed loop stepper motor, engineers should compare its available torque at operating speed, dynamic response, feedback capabilities, and supported control modes with the machine's requirements.

13.9. Smart Manufacturing with CANopen and EtherCAT Networks

Industrial communication is an important consideration when integrating motors into connected production equipment.

An integrated closed loop stepper motor may support pulse-and-direction commands, RS485-based communication, CANopen, EtherCAT, or another interface, depending on the model.

CANopen and EtherCAT are particularly relevant when the machine requires network-based access to motion commands, status information, and supported diagnostic parameters.

CANopen Integrated Closed Loop Stepper Motors

CANopen can be suitable for distributed automation equipment that uses a compatible controller and does not require a different fieldbus architecture.

Common configuration tasks include assigning node IDs, setting the bitrate, importing the EDS file, configuring supported PDOs, and verifying the drive's operating state.

EtherCAT Integrated Closed Loop Stepper Motors

EtherCAT can be attractive for equipment requiring efficient cyclic data exchange or coordinated motion across several axes.

Configuration commonly involves importing the ESI file, verifying the slave state, setting up process data, and checking supported drive modes and synchronization features.

The key purchasing requirement is compatibility with the intended controller. CANopen support does not automatically mean EtherCAT support, and EtherCAT connectivity does not guarantee that every motion-control feature is available.

OEMs should verify the exact communication variant and firmware capabilities before finalizing their design.

13.10. Why Smart Manufacturing Equipment Manufacturers Choose Integrated Closed Loop Stepper Motors

Equipment manufacturers choose integrated closed loop stepper motors for a combination of mechanical, electrical, and control-system benefits.

Compact Design and Reduced Wiring

Combining the motor and drive in one assembly can simplify installation and reduce the number of separate components. This is useful in machines with limited mounting space or many distributed positioning axes.

Encoder Feedback and Motion Monitoring

Encoder feedback helps the drive monitor actual rotor position and identify certain movement discrepancies. Depending on the implementation, the system may also provide diagnostic information that supports troubleshooting.

Flexible Control Options

Some models support pulse-and-direction control, serial communication, or industrial fieldbus protocols. This gives engineers flexibility when matching the motor to an existing or newly developed automation architecture.

Simplified Equipment Standardization

OEMs that manufacture several machine models may benefit from using a consistent motor platform across similar applications. Standardization can simplify wiring design, spare-parts management, and maintenance documentation.

Potentially Lower System Integration Costs

An integrated design may reduce separate drive hardware, cabinet requirements, and wiring labor. However, total system cost also depends on motor pricing, configuration tools, controller compatibility, commissioning effort, and service requirements.

The most economical solution is the one that meets the machine's performance requirements without unnecessary complexity.

13.11. How to Select the Right Integrated Closed Loop Stepper Motor for Smart Manufacturing

Selecting a motor based only on frame size or holding torque can lead to poor application performance. Engineers should assess the complete operating profile before making a purchasing decision.

Torque and speed: Calculate the required torque at the actual operating speed, including acceleration, friction, inertia, and transmission losses.

Positioning requirements: Define the required resolution, repeatability, permissible position error, and whether feedback is needed at the motor shaft or the driven mechanism.

Communication interface: Confirm compatibility with the PLC, industrial PC, or motion controller. Verify the supported protocol, configuration files, and operating modes.

Mechanical configuration: Check mounting dimensions, shaft arrangement, gearbox requirements, lead-screw specifications, and available installation space.

Operating environment: Evaluate ambient temperature, cooling, vibration, dust, moisture, and enclosure protection requirements.

Duty cycle: Determine whether the motor must operate continuously, perform frequent acceleration cycles, or handle intermittent positioning tasks.

Customization and technical support: For OEM projects, confirm whether the supplier can provide the required mechanical configuration, wiring arrangement, documentation, and product consistency across production batches.

A prototype test under representative loads is strongly recommended before moving to mass production.

Conclusion

Integrated closed loop stepper motors have a broad range of applications in smart manufacturing, including automated assembly, electronics production, packaging, liquid handling, material positioning, inspection equipment, and selected warehouse automation mechanisms.

Their combination of motor, drive electronics, and encoder feedback can simplify machine architecture while providing useful motion monitoring. When supported by a compatible industrial communication interface, they can also integrate into connected automation systems.

However, the best solution depends on the actual load, speed, positioning requirements, mechanical design, controller compatibility, and operating environment.

For OEMs, the most effective approach is to calculate the motion requirements, confirm the communication and feedback capabilities, validate the complete mechanism, and work with a supplier that can provide the technical documentation needed for reliable integration.

By matching the motor to the application rather than selecting it by specifications alone, manufacturers can build smart manufacturing equipment that is more compact, maintainable, and consistent in operation.

14. Frequently Asked Questions About CANopen and EtherCAT Integrated Closed Loop Stepper Motors

1. What is an integrated closed loop stepper motor?

An integrated closed loop stepper motor combines a stepper motor, encoder, and motor drive in one compact unit. The encoder provides position feedback, allowing the drive to monitor motor movement and respond to position errors. Depending on the model, the motor may also support communication interfaces such as CANopen, EtherCAT, or RS485, making it suitable for automated assembly equipment, packaging machinery, dispensing systems, and other smart manufacturing applications.

2. What are the main applications of integrated closed loop stepper motors in smart manufacturing?

Integrated closed loop stepper motors are used in automated assembly, electronics manufacturing, precision dispensing, liquid handling, packaging, inspection equipment, conveyor systems, and automated material handling. They are particularly useful where equipment requires repeatable positioning, compact installation, and feedback-based motion control. The appropriate motor depends on the required torque, speed, positioning accuracy, duty cycle, and communication interface.

3. What is the difference between an open loop stepper motor and a closed loop stepper motor?

An open loop stepper motor generally operates without encoder feedback to verify actual shaft movement. A closed loop stepper motor uses encoder feedback to monitor the motor’s position and help detect or correct motion errors, depending on its control design. Closed loop systems can improve motion reliability under changing loads, but their performance still depends on correct sizing, tuning, mechanical design, and the capabilities of the specific drive.

4. Should I choose CANopen or EtherCAT for an integrated closed loop stepper motor?

Choose CANopen when the application needs networked motion control with a suitable implementation cost and communication performance. EtherCAT is often preferred for systems requiring fast cyclic communication, coordinated motion, and low communication latency across multiple axes. The decision should account for the controller, network architecture, cycle-time requirements, synchronization needs, and whether the motor’s exact model supports the required protocol and operating modes.

5. How do I configure CANopen on an integrated closed loop stepper motor?

CANopen configuration typically involves confirming the device’s supported CANopen implementation, setting the node ID and communication bitrate, configuring network termination where required, and connecting the motor to a compatible CANopen master. The engineer then configures relevant communication and motion parameters using the manufacturer’s documentation and verifies network communication, operating states, motion commands, and fault reporting. The exact procedure and supported objects depend on the motor and drive firmware.

6. How do I configure EtherCAT on an integrated closed loop stepper motor?

EtherCAT configuration typically requires a compatible EtherCAT master, the correct device description file where provided, and the manufacturer’s communication and setup instructions. The engineer identifies the device in the master configuration, sets supported operating modes and motion parameters, maps process data, and verifies state transitions and cyclic communication. Multi-axis applications should also be tested for synchronization and timing. Not every integrated closed loop stepper motor supports EtherCAT, so confirm protocol compatibility before purchase.

7. Can integrated closed loop stepper motors improve positioning reliability in automated equipment?

They can improve positioning reliability by using encoder feedback to monitor actual motor movement and identify position deviations. This is useful in pick-and-place mechanisms, inspection stations, dispensing systems, and automated assembly equipment. However, encoder feedback does not eliminate every positioning error. Backlash, coupling compliance, mechanical deflection, incorrect tuning, excessive load, and poor installation can still affect the accuracy of the complete machine.

8. What factors should I consider when selecting an integrated closed loop stepper motor for smart manufacturing?

Evaluate the required torque and speed, acceleration, load inertia, positioning requirements, supply voltage, installation space, duty cycle, thermal conditions, and environmental protection. Also check the encoder specifications, available control modes, communication protocol, I/O, fault monitoring, cable and connector requirements, and compatibility with the machine controller. For production equipment, prototype testing under realistic load conditions can help confirm that the selected motor meets the application’s requirements.

9. Can integrated closed loop stepper motors connect to a PLC or industrial automation system?

Yes, provided the motor’s interface and supported communication protocol are compatible with the PLC or motion controller. Depending on the model, control may be available through pulse and direction signals, RS485, CANopen, EtherCAT, or other specified interfaces. Before integration, confirm the electrical interface, protocol version, device configuration, supported operating modes, and controller compatibility. The presence of one interface does not imply that every model supports all protocols.

10. How can JKONGMOTOR support integrated closed loop stepper motor projects for smart manufacturing?

JKONGMOTOR can be considered as a motor supplier for projects that require integrated motion-control products and application-specific selection support. When evaluating a solution, share the required torque, speed, supply voltage, positioning performance, installation dimensions, operating environment, and controller or network protocol. Confirm the availability of the required functions on the proposed model, then evaluate samples or prototypes before moving to batch production.