Lenze EVS9323-ET 9300-Series Servo PLC

Product Overview

The Lenze EVS9323-ET (EVS9323-ET) is a sophisticated Servo PLC from the 9300-Series, which uniquely combines traditional servo drive functionality with the processing power of a programmable logic controller (PLC). Rated for 1.5 kW, this controller is designed for high-precision, distributed automation tasks where local motion logic must be executed at the drive level. By handling motion profiling and sequence control locally, the EVS9323-ET reduces the communication load on the central machine PLC, making it an ideal choice for high-speed indexing, precise synchronization, and complex positioning tasks in compact machinery.

Technical Configuration

The EVS9323-ET is defined by its ability to execute user-defined programs, providing a decentralized approach to machine control.

• PLC Functionality: Equipped with internal logic processing capabilities, allowing the drive to execute custom application software that governs both the motion axis and local digital/analog I/O.
• Integrated Motion Control: Offers high-dynamic response and fine-tuned control loops, ensuring precise acceleration and deceleration characteristics essential for sensitive industrial processes.
• Modular Compatibility: Maintains compatibility with the standard 9300-series ecosystem, including plug-in communication cards, allowing it to integrate effortlessly into fieldbus networks like Profibus or CANopen.
• IP20 Protection: Built for cabinet installation, the robust housing protects sensitive internal electronics from dust and environmental contaminants in typical factory settings.

Technical Specifications

Frequently Asked Questions

How does the "Servo PLC" functionality differ from a standard servo drive?

A standard servo drive primarily executes motion commands received from an external master. The EVS9323-ET (Servo PLC) contains a dedicated programmable environment, allowing it to store and execute custom control sequences, perform local data processing, and handle I/O logic independently of the central machine controller.

Is this drive suitable for complex multi-axis coordination?

Yes. Through its fieldbus capabilities, the EVS9323-ET can coordinate with other 9300-series drives or master controllers to perform synchronized multi-axis movements, provided the user-programmed logic handles the required timing and handshaking.

Does "Phase-Out" status impact technical support?

While production has ceased, these units remain heavily documented. Most project managers rely on spare unit pools or refurbished stock to maintain these legacy systems. Ensure your application source code is archived to facilitate a smooth restoration if a drive replacement is ever required.

Engineering Integration and Operational Safety

• Communication Integrity: As this unit acts as both a drive and a controller, ensure that communication cables (fieldbus) are routed away from high-power motor leads to avoid data corruption. Use shielded cables and ensure a solid common ground reference between the PLC and the drive components.
• Thermal Management: The 1.5 kW power stage is compact. Mount the drive vertically with at least 100 mm of clearance above and below the housing. If the drive is integrated into a sealed cabinet, account for the heat dissipated by both the power electronics and the internal PLC processor.
• Programming Considerations: Configuration is performed via the 9300-series engineering software. When writing custom PLC code for this unit, prioritize efficiency to ensure that the motion loop processing times are not adversely affected by logic execution cycles.
• Safety Protocol: Always incorporate an external "Enable" hardware interlock. Because this drive can execute local logic, it is critical that the mechanical system remains in a safe state if the drive's internal processor experiences a logic fault.