EVF9324-EV Lenze 9300-Series Vector Frequency Inverter 3.0 kW

Product Overview

The EVF9324-EV (EVF9324EV) is a high-precision 9300-series vector frequency inverter designed for sophisticated motion control and speed regulation in demanding industrial sectors. This 3.0 kW (4.0 HP) drive is specifically engineered for applications requiring high dynamic response and torque accuracy, such as precision winding, synchronized conveyor systems, and complex material processing. Operating on a 400 / 480 V mains connection, the EVF9324-EV excels in reducing mechanical wear and enhancing energy efficiency across the drivetrain. This specific "EV" variant is designed without internal interference suppression measures, providing a specialized solution for systems where external filtering is already centralized or where specific grounding architectures are required. Manufactured in Germany, it serves as a critical bridge for maintaining legacy 9300-series installations, ensuring maximum uptime in plants transitioning toward next-generation automation.

Technical Configuration

The EVF9324-EV utilizes Lenze's advanced field-oriented control (FOC) algorithm, allowing for near-servo performance from standard asynchronous motors. The internal architecture features high-speed digital signal processing to manage complex ramp profiles and torque limits in real-time. Without integrated RFI/EMI suppression, this unit offers a simplified power stage that is often preferred in large-scale installations where a common DC bus or centralized line filters are utilized. It supports a variety of plug-in modules for communication (CAN, PROFIBUS, INTERBUS) and feedback (resolver, encoder), allowing it to act as a versatile node within a decentralized control network. The rugged IP20 housing is optimized for vertical mounting, ensuring reliable thermal management through its integrated aluminum heatsink.

Technical Specifications

Technical FAQs

Why would I choose the EVF9324-EV (without suppression) over a standard version?

The EV variant is often selected for systems utilizing external line filters or in environments with specific leakage current requirements (such as IT networks). Removing internal suppression components can prevent unwanted tripping of sensitive residual current devices (RCDs) while allowing for customized EMI management.

What is the maximum output frequency for the 9300-series vector drives?

The EVF9324-EV typically supports an output frequency up to 600 Hz, depending on the control mode and switching frequency settings. This makes it suitable for high-speed spindle applications as well as standard 50/60 Hz motor control.

Is it possible to transfer parameters from a failed 9300 drive to a new EVF9324-EV?

Yes. Parameters can be transferred using the XT keypad (EMZ9371BC) or via PC software (GDC) using an 2102 IB communication module. This ensures that custom tuning, torque limits, and I/O configurations are preserved during hardware replacement.

Engineering & Installation Guide

• External Filtering Requirements: Since the EVF9324-EV does not include internal interference suppression, it is critical to install an external mains filter (RFI filter) if the installation must comply with EN 61800-3 standards. Failure to provide adequate external filtering may lead to high-frequency interference affecting sensitive control signals and neighboring electronic equipment.

• Vertical Mounting and Airflow: The unit must be mounted vertically on a flat, non-flammable surface. Maintain a minimum vertical clearance of 100 mm at the top and bottom. The 5.50 kg frame utilizes significant convective cooling; ensure that cabinet fans are positioned to provide a continuous flow of cool air across the heatsink fins.

• DC Bus Safety: Before performing any wiring or maintenance on the power terminals (L1, L2, L3 or +UG, -UG), disconnect the mains and wait a minimum of 5 minutes. Use a multimeter to verify that the DC bus voltage has discharged to a level below 50 VDC. The large internal capacitors can hold a lethal charge long after the AC supply is removed.