EVF8201-E Lenze 8200 Series 0.37 kW Frequency Inverter

Product Overview

The EVF8201-E (EVF8201-E) is a compact and highly efficient frequency inverter from the reliable Lenze 8200-Series, specifically optimized for low-power industrial motor control. Delivering a rated power output of 0.37 kW, this drive is a staple for precision tasks in small-scale automation, such as labeling machines, laboratory stirrers, and small conveyor belts. The EVF8201-E operates on a single-phase 230 V input, converting it into a variable-frequency output to provide smooth speed regulation and enhanced torque control for asynchronous motors. Its robust German engineering ensures high process stability and energy efficiency, making it an ideal choice for retrofitting legacy systems where space is limited and reliable performance is non-negotiable. By minimizing mechanical wear through soft-start capabilities, this drive significantly extends the service life of connected hardware and reduces overall maintenance overhead.

Technical Configuration

The hardware architecture of the EVF8201-E is designed for maximum utility within a minimal footprint. It features a high-density power stage capable of a 5 A nominal output current, controlled by sophisticated PWM algorithms that ensure low motor noise and reduced harmonic distortion. The unit is designed for single-phase input (1/N/PE AC 230 V), making it compatible with standard industrial and commercial power grids. The internal logic supports a modular interface, allowing for the easy addition of digital/analog I/O modules or fieldbus communication adapters. Despite its phase-out status, the EVF8201-E maintains a high degree of protection for the power electronics, including integrated monitoring for earth faults, short circuits, and motor overload (I2t protection), ensuring the drive remains operational even in fluctuating industrial environments.

Technical Specifications

Technical FAQs

Can the EVF8201-E be used with a 3-phase 230 V motor?

Yes. The drive takes a single-phase 230 V input and generates a 3-phase 230 V output. Ensure your motor is wired in a "Delta" configuration to match the 230 V output of the inverter for optimal torque performance.

How do I reset a fault on the EVF8201-E without a keypad?

If no keypad module is installed, the drive can typically be reset by cycling the mains power (waiting for the DC bus to discharge completely) or by assigning a "Reset" function to one of the digital inputs via the standard I/O interface.

What is the significance of the "E" suffix in the model number?

The "E" usually denotes a specific hardware revision or an integrated EMC filter class. In the 8200 series, this often signifies compliance with specific European interference suppression standards, allowing for use in industrial or residential areas depending on the cabling.

Engineering & Installation Guide

• Mounting and Airflow: The EVF8201-E must be mounted vertically on a flat, thermally conductive surface. While it is compact (1.20 kg), it still requires adequate convection. Maintain a clearance of at least 80 mm above and below the unit. Side-by-side mounting is possible, but a 10 mm lateral gap is recommended to prevent localized heat buildup in enclosed cabinets.

• Wiring and EMC Compliance: To ensure stable operation and meet interference standards, use shielded motor cables. The shield must be connected to the PE rail using a large-surface contact clamp. Keep the motor cable length as short as possible; if the cable exceeds 10 meters, consider installing a motor filter to prevent insulation stress on the motor windings.

• Protective Earth (PE) Connection: High leakage currents are common in frequency inverters due to internal capacitors. Ensure the drive is grounded via a high-integrity PE connection (at least 10 mm² copper or two separate ground leads) to ensure safety and proper functioning of the internal RFI suppression filters.