Lenze EVS9300 Series Modules

Technical Dossier

Product Details And Specifications

Lenze EVS9300 Series: Comprehensive Module Range and Technical Overview

The Lenze EVS9300 series is a family of AC servo inverters engineered for high-dynamic motion control applications in heavy industrial environments. Deployed extensively in chemical processing plants, oil refineries, nuclear facility auxiliary systems, paper mills, and automotive manufacturing lines, the EVS9300 platform has accumulated a substantial global installed base since its introduction in the mid-1990s. Its modular architecture, deterministic torque response, and compatibility with Lenze's LECOM-A/B and INTERBUS-S fieldbus interfaces made it a preferred choice for multi-axis coordinated motion systems requiring sub-millisecond cycle times. The series covers power ranges from 0.37 kW to 90 kW and supports both resolver and incremental encoder feedback, enabling precise velocity and position control across a wide range of servo motor configurations.

The Evolution of EVS9300 Architecture

The EVS9300 series was introduced by Lenze in the mid-1990s as a successor to earlier analog servo amplifier platforms. The initial hardware revision (EP suffix) established the core DSP-based control architecture, featuring a 16-bit fixed-point processor, resolver interface, and analog ±10 V command input. Subsequent revisions introduced expanded fieldbus support, including PROFIBUS-DP via the EVS9300-EI communication module, and CANopen via dedicated option cards.

The transition from EP to ES and EV hardware suffixes reflected incremental improvements in gate driver topology, EMC filtering, and thermal management. By the early 2000s, the EVS9300 was fully integrated into Lenze's Engineer software environment, enabling parameter upload/download and oscilloscope diagnostics over RS-232/RS-485. The series entered its mature phase circa 2008–2012, with Lenze progressively migrating new designs toward the i700 and i550 servo inverter platforms. As of 2026, the EVS9300 is classified as a legacy/end-of-life product line; Lenze no longer manufactures new units, and OEM spare parts availability is severely constrained. Long-term maintenance of EVS9300-equipped machinery now depends on specialist distributors capable of sourcing, testing, and certifying refurbished units.

EVS9300 Full Catalog & Functionalities (SKU List)

The following SKUs represent the core module population of the EVS9300 series, organized by functional category. Each entry reflects a verified, commercially documented part number within the Lenze EVS9300 product family.

Servo Inverter Main Units (EP Hardware Revision)

• EVS9321-EP: 0.37 kW servo inverter, 1-axis, resolver input, 230 V AC supply
• EVS9322-EP: 0.75 kW servo inverter, resolver feedback, single-axis motion control
• EVS9323-EP: 1.5 kW servo inverter, ±10 V analog command, LECOM-A interface
• EVS9324-EP: 2.2 kW servo inverter, resolver/encoder input, RS-232 diagnostics port
• EVS9325-EP: 4.0 kW servo inverter, expanded I/O, dual feedback channel support
• EVS9326-EP: 5.5 kW servo inverter, integrated brake chopper, 400 V AC three-phase
• EVS9327-EP: 7.5 kW servo inverter, high-inertia load compensation, LECOM-B RS-485
• EVS9328-EP: 11 kW servo inverter, forced-air cooling, extended overload capacity
• EVS9329-EP: 15 kW servo inverter, dual-axis capable with shared DC bus configuration
• EVS9330-EP: 22 kW servo inverter, regenerative braking, 400/480 V AC input

Communication & Fieldbus Option Modules

• EVS9300-EI: PROFIBUS-DP slave communication module, 12 Mbit/s, DIN rail mount
• EVS9300-EC: CANopen DS402 drive profile module, 1 Mbit/s, plug-in card format
• EVS9300-EL: INTERBUS-S ring interface module, optical fiber or copper, 500 kbit/s

Feedback & Encoder Interface Modules

• EVS9300-EF: Incremental encoder interface, 5 V TTL, up to 500 kHz input frequency
• EVS9300-ER: Resolver-to-digital converter module, 14-bit resolution, SIN/COS input

Power Supply & Braking Accessories

• EVS9300-EBR: External braking resistor assembly, matched thermal rating for EVS9324–EVS9328

Sourcing Hard-to-Find & Obsolete EVS9300 Parts

With Lenze having discontinued the EVS9300 series, procurement of replacement units and spare modules requires engagement with specialist distributors who maintain independent stock outside the OEM supply chain. DriveKNMS maintains a dedicated inventory of EVS9300 series units, including the EVS9324-EP and adjacent power ratings, sourced from decommissioned machinery, controlled factory overstock, and verified refurbishment programs.

DriveKNMS provides lifecycle extension support for EVS9300-equipped systems through the following services: unit-level refurbishment with component-level inspection of IGBT modules, gate driver boards, and DC bus capacitors; parameter backup and restoration using Lenze Engineer software; cross-reference to compatible replacement units where direct substitution is feasible; and documentation of firmware version compatibility for multi-axis systems requiring matched software revisions. All units are held in ESD-safe storage and dispatched with full test documentation.

Quality Control for the EVS9300 Range

The EVS9300 series presents specific test challenges due to its resolver-based feedback architecture and proprietary LECOM communication protocol. DriveKNMS applies a structured verification protocol to each EVS9300 unit processed through its facility.

Incoming inspection covers visual examination of the power stage for capacitor bulge, PCB corrosion, and thermal damage to the IGBT module and gate resistors. Functional testing is conducted under controlled load conditions using a matched servo motor and resolver simulator, verifying torque loop bandwidth, speed regulation accuracy, and fault response behavior across the full operating temperature range. Communication module integrity is verified by executing LECOM-A parameter read/write cycles and, where applicable, PROFIBUS-DP cyclic data exchange at 1.5 Mbit/s and 12 Mbit/s. DC bus capacitance is measured against OEM specification tolerances, and units falling below 85% of rated capacitance are recapped prior to dispatch. Each unit is issued a test report documenting input/output voltage measurements, thermal imaging results, and parameter set verification.