EVS9326-EK Lenze 9300-Series Servo Cam Profiler

Product Overview

The EVS9326-EK (EVS9326EK) serves as a precision-engineered Servo Cam Profiler within the high-performance Lenze 9300-Series ecosystem. This 11.0 kW drive is specifically designed to handle complex motion control tasks, such as electronic camming and synchronized multi-axis movements, replacing traditional mechanical cams with software-based flexibility. In demanding sectors like high-speed packaging, textile manufacturing, and automotive assembly lines, the EVS9326-EK plays a critical role in maintaining deterministic timing and sub-millisecond synchronization. As a proven phase-out model, it offers a reliable, field-tested solution for engineers looking to maintain existing infrastructure or replace critical failed units without the need for extensive system re-engineering, effectively minimizing costly production downtime.

Technical Configuration

The EVS9326-EK architecture is built for sophisticated motion control, integrating the power stage and control electronics into a compact IP20 housing. It utilizes a modular communication interface, typically supporting protocols like CANopen as standard, with options for PROFIBUS or INTERBUS through expansion slots. The "EK" suffix denotes the integrated "Cam Profiler" functional software, which allows for the storage of complex motion profiles and real-time interpolation. The hardware features robust thermal management and internal regenerative braking control, ensuring stable operation even during high-inertia decelerations. Its intelligent terminal system allows for flexible I/O assignment, making it adaptable to varied sensor feedbacks and master-slave configurations.

Technical Specifications

Technical FAQs

How does the EVS9326-EK handle position feedback for camming applications?

The unit supports standard resolver feedback and can be configured for high-resolution encoders (SinCos) via plug-in modules. This ensures the high precision required for electronic cam profiles where angular accuracy is paramount.

Can this drive be used as a drop-in replacement for other 9300 models?

The "EK" variant is specific to Cam Profiling. While the power stage may be identical to an EVS9326-ES (Standard) or EVS9326-ET (Servo PLC), the internal firmware and parameter set are different. You must ensure the application software matches the Cam Profiler functionality.

What is the recommended maintenance for a phase-out model like the EVS9326-EK?

Primary maintenance should focus on the DC bus capacitors and the cooling fan. Since this is a legacy product, periodic inspection of the heatsink for dust accumulation and verifying the tightness of power terminals is essential to prevent thermal stress.

Engineering & Installation Guide

• Thermal Management and Spacing: Given the 11.0 kW power rating, ensure a minimum vertical clearance of 100 mm above and below the unit for natural convection. If mounting multiple drives in a single enclosure, utilize active climate control to keep the ambient temperature below 45 deg C to avoid automatic current derating.

• EMC Shielding Practices: To prevent signal interference in the high-speed camming circuits, all motor cables must be shielded with the shield grounded at both ends using low-impedance EMC clips. Keep 24 VDC control wiring and high-power motor leads in separate cable ducts with at least 10 cm of separation.

• DC Bus Safety: After powering down the system, wait at least 5 minutes before touching any terminals or performing maintenance. Use a multimeter to verify that the DC bus voltage has discharged to a safe level (below 50 VDC) as the internal capacitors hold significant energy.