E84AVHCE7514SX0 LENZE

E84AVHCE7514SX0 Power Board

Product  Description：

Lenze Power Boards are high-performance electronic sub-assemblies engineered specifically for industrial motion control systems, including variable frequency drives, servo inverters, and decentralized motor controllers. Serving as the actual power stage of Lenze drive systems, these boards integrate advanced insulated-gate bipolar transistors (IGBTs) or modern silicon carbide modules, charging circuits, and gate drive electronics. They specialize in rectifying incoming main power, stabilizing the internal DC bus, and outputting highly controlled, pulse-width modulated (PWM) voltage to manage motor torque and velocity with exceptional accuracy.

Product Parameters

The technical baseline of a Lenze Power Board centers on its power density, switching frequency, and high-voltage handling capabilities:

• Input Mains Voltage: Designed to support common international industrial grids, including three-phase 200V to 240V AC and three-phase 380V to 480V AC, operating at 50Hz or 60Hz.

• Intermediate DC Bus Voltage: Engineered to continuously monitor and manage high internal DC levels, typically handling up to 800V DC on 400V class systems.

• Continuous Output Current: Tailored to specific drive frames, ranging from low-power configurations handling 2A up to heavy-duty industrial boards rated for hundreds of Amperes.

• Switching Frequency Range: Highly optimized for modern motor dynamics, supporting variable PWM carrier frequencies typically running from 2kHz up to 16kHz.

• Thermal Measurement Integration: Built-in NTC or PTC thermistor sensing circuits that continuously stream real-time heatsink temperature readings to the drive's main processor.

• Dielectric Isolation Rating: High-voltage structural isolation, certified to withstand up to 2500V AC between the high-power traces and the low-voltage control logic interface.

Product Advantages

Lenze Power Boards are highly recognized within the automation sector for their energy efficiency and operational resilience:

• Exceptional Power Density: Utilizing multi-layer PCB technology and direct-bond copper substrates to safely deliver massive amounts of current within a heavily minimized physical enclosure footprint.

• Advanced Thermal Management: Engineered to optimize heat transfer to the drive’s aluminum cooling fin array or liquid-cooled plates, minimizing hot spots and lowering component degradation rates.

• Instantaneous Hardware Protection: Features ultra-fast hardware-based sensing that automatically shuts down the power stage in micro-seconds during catastrophic short circuits or ground faults, protecting upstream infrastructure.

• Reduced Acoustic and Electrical Noise: Designed with sophisticated onboard snubbers and capacitive filters that suppress electromagnetic interference (EMI), ensuring smooth motor performance and compliance with stringent CE and UL noise standards.

• Regenerative Energy Compatibility: Many models feature integrated braking chopper circuits or multi-quadrant layouts that allow smooth dissipation or redistribution of regenerative braking energy from decelerating motor loads.

Product Applications

These power boards are the driving force behind high-speed, high-torque machinery globally:

• Intralogistics and Conveyors: Powering horizontal and vertical conveyor lines, sorting tables, and automated storage and retrieval systems (ASRS) in smart fulfillment hubs.

• Packaging Machinery: Supplying highly dynamic power to servo drives running continuous flow-wrappers, cartoning machines, and automated sealing mechanisms.

• Material Handling and Cranes: Operating large-scale hoists, gantry axes, and industrial turntable drives where high overload capacity is necessary.

• Textile and Printing Industries: Driving multiple synchronized motor axes requiring perfectly uniform velocity profiles to keep consistent line tension on delicate substrates.

• Commercial Fan and Pump Stations: Managing the energy consumption and speed control of large HVAC air handlers and industrial fluids pumping loops.

Important Precautions

To avoid hazardous electrical shocks and prevent premature hardware failures, the following guidelines must be followed:

• Residual High Voltage Warning: The large filter capacitors on the power board store high-voltage electricity for several minutes after disconnected from the grid. Always wait a minimum of 5 to 10 minutes and verify with a reliable voltmeter that the DC bus has dropped below 50V before executing maintenance.

• Heatsink Conduction Integrity: When replacing a power board, the thermal grease or gap pad between the power semiconductors and the metal heatsink must be applied perfectly evenly. Failure to do so causes immediate overheating and localized component destruction.

• Grounding and Shielding Rules: Ensure the power board frame and the connected motor chassis are tied to a central low-impedance earth ground. Always use shielded motor cables and clamp the shielding tightly to the designated cabinet earth plates to block ground currents.

• Over-Torqueing Terminal Damage: When tightening high-voltage input/output copper terminals, adhere strictly to the manufacturer's specified torque rating. Over-tightening can crack the underlying PCB traces, while under-tightening creates localized resistance and fire hazards.

• Environmental Atmospheric Contamination: Do not operate these boards in environments containing conductive metallic dust, water condensation, or vaporized oils. Always mount the drive housing inside a properly sealed, climate-controlled enclosure to maintain an optimal internal environment.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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