LUST LTI Drives CCD34.024.W2.1.BR Servo Drive with CM-CAN2.3.0

The LUST LTI Drives CCD34.024.W2.1.BR is a servo drive from the CCD34 series. It is configured with the W2.1 hardware variant and includes the BR braking function. The unit is equipped with a CM-CAN2.3.0 communication module. The controller is designed for precise closed loop control of servo motors in industrial machinery. Its robust power section makes it suitable for medium and high power axes that require fast acceleration and accurate positioning.

Series and Model Identification

The CCD34 series is part of the LUST LTI Drives motion control portfolio. The 024 model identifies a specific current and power class within the family. The W2.1 suffix describes the hardware revision and option set. The BR designation indicates braking functionality, which allows regenerative energy to be managed through a braking resistor. The CM-CAN2.3.0 module provides a CAN communication interface for connection to a controller or network.

Control Architecture

The drive uses a cascaded control structure with a current loop, a velocity loop, and a position loop. The current loop regulates motor current with a short cycle time, producing fast torque response and low torque ripple. The velocity loop stabilises speed against load disturbances. The position loop uses feedback to close the position error and to ensure accurate stopping. Gains are adjustable, and several parameter sets can be stored for different machine modes.

Feedback Interfaces

Resolver feedback is supported for robust operation in harsh environments. Incremental encoders provide high resolution for accurate speed and position control. Absolute encoders allow the axis position to be known immediately after power up, which removes homing routines. Motor temperature sensors can be evaluated so that the drive reduces current when the winding approaches its thermal limit. Feedback parameters are configured during commissioning.

Braking Function BR

The BR option provides braking capability. When a motor decelerates a high inertia load or a vertical load, energy returns to the DC bus and raises the bus voltage. The braking function connects an external braking resistor so that this energy is converted into heat and the bus voltage remains within limits. This prevents overvoltage trips and allows controlled deceleration profiles.

CM-CAN2.3.0 Communication Module

The CM-CAN2.3.0 module provides a CAN interface for the servo drive. It allows the drive to exchange data with a machine controller or with other devices on the network. Process data such as control words, status words, setpoints, and actual values can be transmitted. Parameter data can be transferred for configuration and diagnostics. The module is configured with a node address and a data format that matches the controller.

Power Section and DC Bus

The output stage converts DC bus voltage into controlled motor current. Protection circuitry monitors current, voltage, and temperature continuously. When several drives share a DC bus, braking energy from one axis can be used by another axis that is accelerating. This reduces the energy that must be dissipated in a braking resistor and improves overall system efficiency.

Input and Output Signals

Digital inputs handle enable, fault reset, and limit switch functions. Digital outputs report ready state and fault condition and can control a motor brake. Analog inputs accept external speed or torque references. The CAN interface provides cyclic communication with a higher level controller for coordinated motion and process data exchange.

Protection and Diagnostics

Protection includes overcurrent limiting, short circuit detection, ground fault monitoring, overvoltage and undervoltage supervision, and overtemperature monitoring. Motor overload protection uses a thermal model based on the current profile. Faults are displayed on the front panel and stored in the fault history together with operating conditions. Diagnostic tools allow current, speed, and position signals to be recorded and analysed.

Commissioning

Commissioning begins with entering motor data and feedback configuration. The drive then runs an identification routine to determine electrical parameters and initial control loop gains. The engineer refines the response using step response or frequency response analysis. The CAN network parameters are configured and verified. The parameter set is saved and backed up.

Applications

The CCD34.024.W2.1.BR is suitable for packaging, printing, textile, handling, and assembly machinery. It can be used for feed axes, positioning tables, rotary indexing, and winding drives. The braking function makes it suitable for applications with vertical axes or high inertia loads. The CAN interface allows integration into networked machine control systems.

Installation Practice

Mount the drive vertically with clearance for airflow. Use shielded motor cables and bond the shield to cabinet ground. Route signal and communication cables separately from power cables. Verify that the DC bus and braking resistor wiring follows the specified cross sections and torque values. Confirm that cabinet cooling is sufficient for the total losses of all installed drives.

Maintenance and Service

Inspect cooling paths and fans at scheduled intervals and clean dust from air inlets. Verify terminal tightness. Keep parameter and firmware records available so that a replacement unit can be restored quickly. Review the fault history to detect recurring overload or overvoltage events.

Selection Considerations

Match continuous and peak current to the motor and load. Confirm the DC bus voltage class and the feedback interface. Verify that the W2.1 and BR options provide the required braking and communication functions. Check that the CM-CAN2.3.0 module is compatible with the controller. Consider the thermal environment and the total heat load in the cabinet.

Conclusion

The LUST LTI Drives CCD34.024.W2.1.BR with CM-CAN2.3.0 is a servo drive with braking capability and CAN communication. It offers flexible feedback support, robust protection functions, and straightforward integration into multi-axis systems. With correct selection and commissioning, it delivers accurate and reliable motion in industrial machinery.