EVF8211-E Lenze 8200-series 0.75 kW Frequency Inverter Drive

Product Overview

The EVF8211-E (EVF8211-E) is a compact and reliable frequency inverter drive from the proven Lenze 8200-series, engineered to provide precise speed and torque regulation for three-phase AC asynchronous motors. Delivering a rated power of 0.75 kW, this drive is a staple in industrial automation for managing small-scale motor loads such as precision conveyors, dosing pumps, and automated agitators. The EVF8211-E operates with a 400V 3-phase input and provides a versatile output frequency range of 0 to 480 Hz, enabling high-speed motor operation where required. In B2B manufacturing environments, this drive is valued for its modularity and ease of integration into established control cabinets. Although the 8200-series is currently in its phase-out stage, its robust power electronics and straightforward parameterization continue to support critical maintenance and legacy system optimizations across various industrial sectors.

Technical Configuration

The EVF8211-E (also referenced by the item code 33.8211_E) is architected for 3-phase AC 400V power systems, featuring an input current rating of 3.75A and an output current capacity of 2.4A. Its hardware is designed for standard cabinet installation with a weight of 2.70 kg and a rugged chassis footprint of 22.90 x 10.20 x 30.50 cm. The drive supports various plug-in function modules for communication (such as CAN, PROFIBUS, or RS232/485) and I/O expansion, allowing for flexible adaptation to different automation architectures. The internal control logic is optimized for high efficiency, providing thermal monitoring and overload protection for both the inverter and the connected motor. Its high-frequency output capability (up to 480 Hz) makes it suitable for specialized high-speed motor applications that exceed standard line frequencies.

Technical Specifications

Technical FAQs

What are the primary applications for a 0.75 kW drive with a 480 Hz limit?

This model is ideal for standard conveyor tasks but also excels in high-speed applications like spindle drives or precision centrifuges where the motor must operate significantly above the base 50/60 Hz frequency while maintaining stable torque.

How do I handle communication integration for this phased-out model?

The EVF8211-E utilizes the modular slot on the front of the unit. You can insert 8200-series function modules (AIF modules) for Fieldbus connectivity. Since these are also in phase-out, it is recommended to secure the necessary communication modules along with the drive for long-term support.

Can this drive be used with a single-phase input?

No. The EVF8211-E is specifically designed for a 3-phase 400V input. Operating this unit on single-phase power will result in a phase-failure fault and potentially damage the internal DC bus capacitors.

Engineering & Installation Guide

For the EVF8211-E, ensure the unit is mounted vertically to promote natural convection through the heatsink. Maintain a minimum clearance of 100 mm at the top and bottom of the drive for adequate airflow. To ensure electromagnetic compliance (EMC), use shielded motor cables and ground the shield at both the inverter's mounting plate and the motor's terminal box using 360-degree clamps. Control wiring should be kept separate from power and motor cables to prevent signal interference. During commissioning, if the motor cable exceeds 10 meters, consider installing a motor reactor to protect the motor insulation from $dv/dt$ stress. For parameter setup, the Lenze Global Drive Control (GDC) software or a plug-in keypad can be used to set the V/f characteristic curve or motor data for optimal performance.