Technical Specifications and Performance
Core Electrical Data
The inverter is engineered to provide stable power conversion for high-performance industrial loads.
Rated Power: 5.5 kW (7.5 HP).
Input Voltage: 3-phase 320–528 V AC at 45–65 Hz.
Output Current: Rated at 13.0 A.
Overload Capacity: Supports 150% rated torque for 60 seconds.
Enclosure Rating: IP20 protection for standard control cabinet installation.
Functional Design Features
Control Method: Utilizes high-performance servo control to maintain high dynamic response and torque accuracy across the entire speed range.
Integrated System Bus: Features a built-in CAN interface for seamless communication between drives and controllers.
Modular Architecture: Supports plug-in modules for various Fieldbus protocols, including PROFIBUS and INTERBUS.
Integrated Protection: Features short-circuit, earth-fault, and overvoltage protection to ensure long-term hardware reliability.
Feedback Support: Compatible with resolvers and various encoder types for precise position and speed feedback.
Field Installation and Maintenance Strategies
Wiring Integrity and Signal Management
Field experience shows that improper resolver cabling remains a frequent cause of signal instability in servo applications. Therefore, you must verify that you use high-quality shielded cables for the Lenze EVS9325-ES and that the shields are grounded correctly at both the inverter and motor ends. When terminating leads, ensure that the power and feedback cables remain separated to prevent electromagnetic interference. Moreover, a mechanical necessity to protect the hardware integrity requires that you verify the tightening torques of the power terminals to avoid overheating. Finally, maintaining a record of specific drive parameters prevents troubleshooting delays during future system maintenance.
Diagnostics and Drive Troubleshooting
Technicians monitor the integrated status LEDs or the optional plug-in keypad to identify hardware faults or motor overload conditions quickly. If the Lenze EVS9325-ES signals an error code, check the integrity of the DC-bus voltage and the status of the feedback signals immediately. Also, verify that the ambient temperature inside the cabinet remains within the specified limits to prevent thermal derating. Because a failure in the servo inverter can lead to production downtime, this unit features extensive self-diagnostics to pinpoint internal faults. Finally, perform periodic "cooling fan checks" to ensure the heat sink remains clear of dust and debris.
Buyer’s Guide & FAQ
Q1: What is the primary role of the EVS9325-ES? The EVS9325-ES is a 5.5 kW servo inverter used for high-dynamic motor control in the Lenze 9300 series.
Q2: Does it support multi-axis synchronization? Yes, the integrated CAN system bus facilitates synchronized movement between multiple drives.
Q3: Is the module compatible with third-party motors? Yes, it supports both synchronous and asynchronous motors, provided the appropriate feedback and motor data are configured.
Q4: Is an external brake resistor required? For applications with high regenerative energy, an external resistor should be connected to the integrated brake chopper.
Q5: How can I confirm the authenticity of my Lenze hardware? Verify that the module features official Lenze branding and a unique serial number on the identification label. Authorized channels ensure the unit meets original factory standards for high-performance automation.
