E82EV302_4B Lenze 8200-Series Vector Frequency Inverter 3.0 kW

Product Overview

The E82EV302_4B (E82EV302K4B) is a precision-engineered vector frequency inverter from the Lenze 8200-series, designed to provide high-performance speed and torque control for three-phase AC motors. Rated for a power output of 3.0 kW (4.0 HP), this drive is optimized for a 400/500 VAC mains connection, delivering a continuous rated current of 7.2 A with a peak capacity of 9.5 A. A defining feature of the "4B" variant is its integrated interference suppression system, which significantly reduces electromagnetic emissions and ensures compliance with industrial EMC standards without the need for external filtering. This compact, German-manufactured inverter is a critical component for reducing mechanical stress and optimizing energy consumption in applications such as industrial fans, pumps, and conveyor systems. Even in its phase-out status, the E82EV302_4B remains a benchmark for reliability and advanced motor modulation in the B2B sector.

Technical Configuration

The E82EV302_4B utilizes a high-performance vector control architecture that allows for superior dynamic response compared to standard V/f drives. This architecture enables the drive to maintain precise speed and high torque even at low RPM, making it suitable for heavy-start industrial loads. The hardware is designed for control cabinet mounting with a slim "book-style" profile to save rail space. It features a modular expansion slot that supports various plug-in modules for fieldbus communication (e.g., PROFIBUS, CAN, or LECOM) and I/O expansion. Internal safety mechanisms include comprehensive monitoring for earth faults, short circuits, and motor thermal overload (I2t), ensuring the protection of both the inverter power stage and the connected motor.

Technical Specifications

Technical FAQs

What is the difference between the '4B' and '4C' versions of this drive?

In the Lenze 8200-series nomenclature, both versions share the same voltage class (400/500V). However, the 'B' or 'C' designation often refers to specific hardware revision levels or internal filter characteristics. For the E82EV302_4B, the integrated suppression is optimized for standard industrial environments.

How do I address an 'OC1' (Overcurrent) fault on start-up?

An OC1 fault typically indicates a short circuit in the motor cable or the motor itself, or an excessively fast acceleration ramp. Check the motor insulation and ensure the 'Acceleration Time' parameter is set high enough to accommodate the load's inertia.

Can I run this drive on a single-phase 230V supply?

No. The E82EV302_4B is specifically designed for a 3-phase 400/500 VAC input. Attempting to power it with 230V will result in an 'LU' (Low Undervoltage) trip and the drive will not enable.

Engineering & Installation Guide

• EMC Grounding: To maximize the effectiveness of the integrated interference suppression, the inverter must be mounted on a conductive, zinc-plated mounting plate. Use a wide-surface grounding strap to connect the drive's PE terminal to the central earthing point of the cabinet to mitigate high-frequency noise.

• Thermal Clearance: Despite its compact 2.90 kg frame, the power stage generates heat during 3.0 kW operation. Maintain a minimum vertical clearance of 100 mm above and below the unit. Side-by-side mounting is permitted, but ensure that cabinet ambient temperatures do not exceed 45 deg C to avoid automatic current derating.

• Braking Resistor Connection: For high-inertia loads requiring rapid deceleration, connect an external braking resistor to the +UG and BR terminals. Ensure the resistance value is not lower than the minimum specified in the 8200 Vector manual to prevent damage to the internal brake chopper.