EVS9325-ESV004 Lenze 9300-Series 5.5 kW High-Performance Servo Inverter

Product Overview

The EVS9325-ESV004 (EVS9325-ESV004) is a high-precision servo inverter from the established Lenze 9300-Series, engineered to provide dynamic and accurate control for permanent magnet synchronous motors and asynchronous servo motors. Featuring a rated power of 5.5 kW, this controller is a critical component for medium-to-heavy industrial applications such as high-speed automated assembly, CNC machining centers, and sophisticated textile equipment. The EVS9325-ESV004 is optimized for high-density cabinet mounting with an IP20 degree of protection and a compact 13.50 cm chassis width. By utilizing high-resolution feedback loops and advanced motion control algorithms, this drive ensures exceptional torque linearity and positioning accuracy, essential for reducing cycle times and improving output quality. While this series reached its phase-out stage in 2017, its reputation for German-engineered reliability makes it a preferred choice for critical maintenance and long-term legacy system support.

Technical Configuration

The EVS9325-ESV004 architecture is designed for the "ESV" standard servo functionality, facilitating a wide range of motion control tasks from simple speed regulation to complex multi-axis positioning. The hardware includes integrated monitoring for motor temperature, earth faults, and DC-bus short circuits to ensure system longevity. It supports various plug-in communication modules, including CANopen (standard), PROFIBUS, and INTERBUS, enabling seamless integration into distributed control systems (DCS) or PLC-led architectures. The power stage is designed for high overload capacity—allowing for aggressive acceleration and deceleration cycles—while the modular interface design enables the addition of specialized feedback systems like SinCos encoders or absolute encoders to meet specific precision requirements.

Technical Specifications

Technical FAQs

Does the EVS9325-ESV004 support regenerative braking?

Yes. For applications with high-inertia loads or frequent deceleration, the drive is equipped with an internal brake chopper. An external brake resistor must be connected to dissipate the energy and prevent DC-bus overvoltage faults during aggressive braking cycles.

How is the cooling system managed in a 5.5 kW unit?

The EVS9325-ESV004 utilizes a forced-air cooling system with an internal fan. It is essential to maintain proper clearance in the control cabinet to ensure that the heat generated during 5.5 kW operation is effectively moved away from the power electronics.

Can I transfer parameters from an old unit to a replacement EVS9325-ESV004?

Yes. Parameters can be transferred using the plug-in keypad (EMZ9371BC) via its internal copy function, or by using a PC with Lenze Global Drive Control (GDC) software and the appropriate communication adapter.

Engineering & Installation Guide

For the EVS9325-ESV004, a vertical mounting orientation is mandatory to ensure that the internal fan can effectively circulate air through the power stage. Maintain a minimum clearance of 100 mm above and below the chassis. To comply with EMC directives, all motor cables must be shielded, and the shield should be grounded using a 360-degree clamp at the inverter’s EMC plate. Avoid routing control wiring in parallel with high-voltage power cables in the same ducting to prevent signal interference. If the drive is integrated into a multi-axis system, consider linking the DC buses to share energy between motoring and braking axes, which significantly improves overall energy efficiency. During commissioning, perform an automatic motor parameter identification (auto-tuning) to ensure the inverter’s current control loops are perfectly aligned with the motor's electrical characteristics