LUST LTi Drives CDE32.003.C2.3 Positioning Controller 230 V AC
The LUST LTi Drives CDE32.003.C2.3 is a positioning controller from the CDE32 series, a drive family developed by LUST Antriebstechnik and later marketed under the LTi Drives brand. This variant is rated at approximately 0.95 kVA and is designed for a 230 V AC mains connection, which distinguishes it from the 400 V units in the same range. The unit operates with software version V4.10-02, which provides the control firmware functions, parameter management and diagnostic features used during commissioning and daily operation.
The 230 V AC design makes this drive suitable for installations where only a lower voltage supply is available. Typical environments include smaller machines, laboratory equipment, special purpose machinery and retrofit projects where the electrical supply is limited to a single phase or lower voltage configuration. Despite the lower supply voltage, the control architecture remains consistent with the rest of the CDE32 family, so commissioning procedures and parameter structures are familiar to engineers who have worked with other LTi Drives products.
Product Overview
The CDE32.003.C2.3 operates as a single axis servo controller with integrated positioning functionality. It converts the 230 V AC supply into a controlled output voltage and frequency that drives a servo motor. The internal power stage uses pulse width modulation with a high switching frequency, producing smooth current waveforms, low torque ripple and quiet motor operation. The control core executes current, velocity and position loops in a closed cascade, with each loop independently tunable to match the mechanical characteristics of the connected load.
The position loop can be configured to accept command values from a higher level controller over a fieldbus, or from a pulse and direction interface, depending on the configuration. This allows the drive to function either as a simple slave axis or as a more autonomous positioning unit. The compact power stage suits small and medium sized servo motors used in positioning tables, feed rollers, tool changers and auxiliary axes.
Key Features and Functional Highlights
Feedback support covers resolver, incremental encoder and absolute encoder interfaces, depending on the configuration code. Automatic commutation detection reduces commissioning effort when the motor and drive are paired for the first time. Parameter sets can be stored internally and transferred between units, which simplifies machine replication and spare parts handling.
Integrated monitoring functions continuously evaluate current, voltage, temperature and following error. When a limit is exceeded, the drive triggers a defined fault response and disables the output stage, protecting the motor and the mechanical system. Braking energy generated during deceleration can be dissipated through an external braking resistor connected to the DC link, allowing moderate inertia loads to be stopped quickly without overvoltage trips.
Digital and analog inputs and outputs provide fast interfacing with machine signals such as enable, limit switches, reference pulses and brake control. A motor holding brake output is available for vertical axes. The unit is protected against overcurrent, overvoltage, undervoltage and overtemperature conditions, and it includes an electronic motor overload model that estimates winding temperature without additional sensors.
Technical Specifications
The CDE32.003.C2.3 is designed for a 230 V AC mains connection and provides an output suitable for small and medium sized servo motors. The rated power of approximately 0.95 kVA corresponds to a compact power stage with short term overload capability for acceleration peaks. The output frequency range extends across a wide band, supporting both standard servo motors and higher speed applications. The DC link is accessible for shared operation in suitable configurations.
Software version V4.10-02 provides the parameter structure, control algorithms, monitoring functions and communication handling used by the drive. The software supports fieldbus communication, analog and digital signal processing, and the diagnostic memory that records fault events. Supported fieldbus protocols across the platform include CANopen, PROFIBUS, EtherCAT and others, depending on the option fitted.
Performance and Advantages
Short current loop cycle times produce fast response to torque commands and minimize following error during positioning moves. This is particularly valuable in applications involving frequent start stop cycles or tight positioning tolerances. The velocity loop can be tuned with adjustable gain, integral time and filter settings, so that resonance in the mechanical train can be suppressed without sacrificing bandwidth.
Because the drive supports both rotary and linear motors, it can be applied to direct drive axes as well as conventional geared arrangements. The 230 V AC design allows operation from a lower voltage supply, which simplifies electrical installation in smaller systems. The modular configuration coding system means that a single base platform can be adapted to different feedback types and fieldbus systems by selecting the appropriate ordering code.
Application Areas
The CDE32.003.C2.3 is used in compact industrial machines and special purpose equipment. Typical applications include small machine tool axes, packaging and labelling units, handling and assembly stations, laboratory and test rig positioning systems, textile machinery and general automation installations where a 230 V AC supply is available. Its compact dimensions make it suitable for multi axis machines with limited cabinet space.
Installation and Commissioning
Installation begins with verifying the mains voltage, the motor rating and the feedback type. The drive must be mounted vertically with sufficient clearance above and below to allow convection cooling. Shielding of the motor cable is essential for electromagnetic compatibility, and the shield should be bonded to the cabinet ground at both ends using a large contact area. Motor and feedback cables should be routed separately from mains and signal cables to reduce interference.
Commissioning typically starts with entering the motor data, either manually or by selecting a stored motor dataset. The feedback system is then checked for correct direction and resolution. After the current loop is verified, the velocity and position loops are tuned using step response tests or automatic tuning routines. Finally, the fieldbus parameters, limit values and fault responses are configured and stored in non volatile memory.
Maintenance and Diagnostics
The drive includes a diagnostic memory that records fault codes, operating hours and critical parameter values at the moment of a trip. Regular maintenance consists of checking cabinet cooling, verifying terminal torque, inspecting cable shields and clearing dust from heatsink fins. Fan units, where fitted, should be replaced according to the recommended service interval.
System Integration and Compatibility
The CDE32.003.C2.3 integrates into automation systems through its fieldbus interface or through conventional analog and digital signals. It can be combined with other drives in the same family on a shared DC bus, and it supports master slave torque distribution for mechanically coupled axes. Because the parameter structure is consistent across the CDE32 range, engineering effort can be reused when additional axes are added to a machine.
Selection Guidance
When selecting this drive, the key considerations are the available mains voltage, continuous and peak motor current, motor inductance, feedback type, required fieldbus protocol and the available cabinet space. The 230 V AC design and 0.95 kVA rating of the CDE32.003.C2.3 suit compact machines and installations where a 400 V supply is not available. For higher power requirements, other members of the same family provide larger ratings.
Conclusion
The LUST LTi Drives CDE32.003.C2.3 is a compact positioning controller designed for 230 V AC operation, offering precise closed loop control in a small package. Its configuration coding allows it to be tailored to specific machine requirements, while its diagnostic and monitoring features support reliable long term operation. For engineers designing or maintaining motion systems that operate from a lower voltage supply, this drive remains a well understood and practical component.
