Lenze EVF9328-CVV003 Frequency Inverter, 400V, 30kW – Series 9300

Technical Specifications Breakdown

Key parameters for the EVF9328-CVV003 are listed below for quick reference:

Lenze EVF9328-CVV003 Frequency Inverter – A Reliable Drive Solution for High-Capacity Applications

This unit is engineered for applications requiring a robust 400 VAC input and a typical motor power of 30 kW (approximately 40 HP). Its cold plate version ensures efficient heat dissipation, making it a dependable choice for continuous operation in challenging environments.

The EVF9328-CVV003 is designed for mid-to-high power drive applications. Its 30 kW motor power capability makes it suitable for conveyors, pumps, fans, and other machinery that require variable speed control. The wide input voltage range (320 to 440 VAC) and frequency tolerance (45 Hz to 65 Hz) allow it to operate reliably in regions with unstable grid conditions. The cold plate version is particularly beneficial in applications where space is limited or where conventional fan cooling is not feasible, as it transfers heat directly to a mounting surface.

Installation & Setup Guidance

When installing the EVF9328-CVV003, ensure that the mounting surface is flat and clean to maximize the thermal transfer of the cold plate. The unit’s mass of 18 kg requires adequate structural support. Verify that the mains voltage stays within 320 to 440 VAC and the frequency between 45 Hz and 65 Hz before powering up. Use appropriate cable sizes for the rated output current (up to 47A at 8 kHz) and ensure proper grounding. For higher current demands (up to 70.5A at 2/4/8 kHz), confirm that the mains choke is installed as specified.

Maintenance & Reliability

Regularly inspect the inverter for dust accumulation on the cold plate, as this can impair thermal performance. Check all electrical connections for tightness and signs of corrosion. Operate the unit within the specified temperature range of 0 to 40 degrees Celsius to ensure long-term reliability. The power loss of 610 W should be considered when designing the enclosure ventilation, even with the cold plate design.

Compatibility & Integration

The EVF9328-CVV003 is part of the Lenze Series 9300, ensuring seamless integration with other Series 9300 components. It is designed to work with standard 400V AC motors, and its output current capabilities allow it to drive motors up to 30 kW (40 HP). The inverter’s switching frequency options (2/4/8 kHz) provide flexibility to match motor and application requirements, balancing audible noise and efficiency.

Selection Guide & Purchasing Advice

When selecting a frequency inverter, verify that the motor power and current ratings match your application. The EVF9328-CVV003 offers a good balance of performance and thermal management for many industrial drives. If you need assistance in confirming compatibility or availability, contact AutoDCSTech. We specialize in industrial automation parts and can help you find the right solution. Please verify current lifecycle status and availability with AutoDCSTech before ordering.

Troubleshooting & Common Issues

If the inverter fails to start, check the mains voltage and frequency against the specified ranges. Overcurrent trips may occur if the motor is overloaded or if the switching frequency is set too high for the application. Ensure that the mains choke is installed when operating at higher output currents. If the unit overheats, inspect the cold plate mounting and ambient temperature. For persistent issues, consult the Lenze Series 9300 documentation or contact a qualified service engineer.