LUST LTI Drives CM-CAN1 3084464 Communication Module

The LUST LTI Drives CM-CAN1 with reference number 3084464 is a communication module designed for use with LTi Drives servo controllers. The module provides a CANopen fieldbus interface, allowing the drive to exchange command values, status information and diagnostic data with a higher level machine controller. Fieldbus communication of this kind is essential in modern automation systems, where multiple axes must be coordinated and where the machine controller needs continuous feedback on the state of each drive.

The CM-CAN1 module is part of the accessory range for the LUST LTi Drives platform, which includes the CDA, CDB, CDD and CDE drive families as well as the Servo One series. Because the module is designed specifically for these drives, it integrates directly with the existing control electronics and parameter structure, so commissioning follows the same procedures used for the drive itself.

Product Overview

The CM-CAN1 is a plug in communication module. It is mounted in the designated option slot of the servo controller and connects the drive control electronics to the CANopen network. Once installed and configured, the module allows the drive to receive target values such as position, velocity or torque commands from the machine controller, and to return actual values, status words and fault codes.

CANopen is a fieldbus protocol widely used in industrial automation. It is based on the CAN physical layer and defines a communication profile that includes process data objects, service data objects and network management functions. The CM-CAN1 implements this profile so that the drive appears as a standard CANopen node on the network, which simplifies integration with controllers that already support the protocol.

Key Features and Functional Highlights

The module supports cyclic and acyclic data exchange. Cyclic exchange is used for fast process data such as target position and actual velocity, while acyclic exchange is used for configuration parameters and diagnostic information that are not time critical. This combination allows the machine controller to maintain tight control over motion while still having access to the full parameter set of the drive.

Network management functions allow the module to participate in node guarding, heartbeat monitoring and synchronization. Node guarding and heartbeat monitoring allow the controller to detect if a drive stops responding, which is important for safety and fault handling. Synchronization allows multiple drives to act on command values at the same time, which is required for coordinated multi axis motion.

The module is configured through the drive parameter structure. Network parameters such as node identifier, baud rate and process data mapping are set during commissioning and stored in non volatile memory. Once configured, the module operates automatically each time the drive is powered up, without the need for repeated setup.

Technical Specifications

The CM-CAN1 provides a CANopen interface for LTi Drives servo controllers. The physical connection is made through the designated connector on the drive or through the module itself, depending on the drive variant. The module supports standard CANopen baud rates and node addressing, and it implements the communication profile required for drive operation in a CANopen network.

The module is designed to operate in the electrical environment of the drive, using the internal supply and signal levels of the control electronics. It is mounted in the option slot provided for communication modules, and it is held in place by the mechanical fixing specified for that slot. Connection to the network is made using screened twisted pair cable, with termination resistors fitted at the ends of the bus as required by the CANopen specification.

Performance and Advantages

The CM-CAN1 allows LTi Drives servo controllers to be integrated into CANopen based automation systems without additional external interface equipment. This reduces wiring effort, saves cabinet space and simplifies the overall system architecture. Because the module is designed by the drive manufacturer, it is fully compatible with the drive firmware and parameter structure, which reduces the risk of communication problems during commissioning.

Fast cyclic data exchange supports coordinated motion across multiple axes, which is important in applications such as packaging machines, printing presses and handling systems where several drives must move in synchronism. Diagnostic data returned over the fieldbus allows the machine controller to monitor drive status and respond to faults without requiring separate signal wiring for each drive.

Application Areas

The CM-CAN1 is used in industrial machines where LTi Drives servo controllers are integrated into a CANopen network. Typical applications include machine tools, packaging machinery, printing and converting equipment, handling and robotics systems, textile machinery and general automation installations. The module is also relevant in retrofit projects where an existing CANopen network must be extended with additional LTi Drives axes.

Installation and Commissioning

Installation requires isolation of the drive from the mains supply. The module is inserted into the designated option slot and fixed according to the drive documentation. Network cable is connected to the module, with attention to correct screening, grounding and termination. After power up, the module is configured through the drive parameter interface: node identifier, baud rate, process data mapping and fault response settings are entered and stored.

Commissioning includes verifying communication with the machine controller, checking that process data is exchanged correctly and confirming that fault and status information is received as expected. A test run at reduced speed confirms that command values from the controller produce the correct motion at the drive.

Maintenance and Diagnostics

Maintenance of the module consists of visual inspection for damage or loose connections, checking the network cable and connectors, and verifying that the module is correctly seated in its slot. Diagnostic information from the drive and from the network management functions helps identify communication problems. If a fault is traced to the module, replacement of the unit restores operation.

System Integration and Compatibility

The CM-CAN1 integrates with the LTi Drives servo controller family and with CANopen based machine controllers. Compatibility depends on the drive model, the firmware version and the network configuration. The module supports the standard CANopen drive profile, which allows it to be used with controllers from multiple manufacturers, provided that the controller supports the same profile.

Selection Guidance

When selecting a communication module for an LTi Drives servo controller, the key considerations are the fieldbus protocol required by the machine controller, the drive model and firmware version, and the number and type of axes in the system. The CM-CAN1 is the appropriate choice where CANopen is the required protocol and where the drive provides a compatible option slot.

Conclusion

The LUST LTI Drives CM-CAN1 with reference 3084464 is a CANopen communication module that allows LTi Drives servo controllers to be integrated into fieldbus based automation systems. It supports fast cyclic data exchange, network management and diagnostic communication, and it is designed for direct installation in the drive option slot. For engineers building or extending CANopen based motion systems, this module remains a practical and well understood component.