Product Overview

The EVS9327-EKV004 (EVS9327-EKV004) is a high-capacity electronic cam profiler from the Lenze 9300-Series, engineered to replace mechanical cam discs with dynamic, software-programmable motion profiles. Delivering a substantial 15.0 kW of rated power, this servo controller is designed for heavy-duty synchronized motion in industries such as high-volume packaging, rotary printing presses, and sophisticated textile processing. By utilizing the EVS9327-EKV004, engineers can implement complex non-linear motion laws and achieve sub-millisecond synchronization between axes, significantly reducing mechanical vibration and enabling rapid product format changes. Although the series reached its official phase-out in 2017, this German-manufactured drive remains a critical component for maintaining high-torque legacy automation lines where precision camming and robust IP20-rated protection are mandatory for operational continuity.

Technical Configuration

The EVS9327-EKV004 is architected for "EKV" cam profiling functionality, featuring a dedicated internal processing unit that manages motion tasks independently based on a master encoder or virtual master signal. This drive supports a wide array of feedback systems and integrates seamlessly into multi-axis architectures via the standard system bus (CAN). The hardware is housed in a substantial 25.00 cm wide chassis, designed for efficient heat management and vertical cabinet mounting. Its power stage is optimized for high dynamic response and high overload capacity, ensuring stable torque delivery during the aggressive acceleration and deceleration phases characteristic of high-speed camming. The unit also supports modular expansion for various fieldbus communication protocols, including PROFIBUS and INTERBUS, facilitating its role as a centralized motion controller in complex DCS or PLC-driven networks.

Technical Specifications

Technical FAQs

What is the primary advantage of the 15.0 kW Cam Profiler version?

The EKV variant allows for the storage of complex motion profiles directly on the drive. This power rating (15.0 kW) allows the drive to handle significantly larger loads and higher inertial forces compared to smaller models, making it suitable for main-drive applications in large machinery where mechanical cams were traditionally used.

How is synchronization maintained between multiple EVS9327 units?

Synchronization is typically achieved via the integrated Lenze system bus (CAN). The drives share a common master position signal, allowing the EVS9327-EKV004 to calculate its specific camming position in real-time with zero mechanical backlash.

Can this drive be used in regenerative applications?

Yes. For applications with high-inertia deceleration, an external brake resistor is required to dissipate energy via the internal brake chopper. Alternatively, for multi-axis systems, the DC bus can be linked to share energy with motoring axes, improving overall system efficiency.

Engineering & Installation Guide

For the EVS9327-EKV004, proper mechanical installation is critical due to its 12.50 kg weight and 15.0 kW power output; ensure the mounting backplane is a grounded metal plate capable of supporting the load and providing an EMC path. A vertical mounting position is mandatory with a minimum clearance of 150 mm above and below the unit to ensure the forced-air cooling system can effectively manage the heat generated by the power stage. To ensure camming precision, use high-quality shielded twisted-pair cables for all feedback and communication signals. The motor cable shield must be grounded using a 360-degree clamp at the drive's EMC plate to prevent high-frequency noise from impacting the synchronization bus. During commissioning, utilize the "Auto-tuning" feature to calibrate the drive to the motor's specific electrical characteristics, ensuring optimal torque linearity and preventing nuisance overcurrent trips during rapid camming cycles.