EVD 4905-E LENZE

EVD 4905-E LENZE Basis unit 

Product  Description：

Lenze Base Units, often integrated within the modular design of Lenze frequency inverters (such as the 8400 series) and decentralized I/O systems, function as the essential structural foundation and electrical backbone for industrial drive and control technology. These units provide the physical slot architecture, power routing infrastructure, and backplane bus connections required to mount application-specific functional modules, communication interfaces, and memory units. They act as the stationary baseline that handles primary wiring, allowing active control components to be plugged in or replaced seamlessly.

Product Parameters

The technical profile of a Lenze Base Unit focuses on electrical routing, structural versatility, and environmental tolerances:

• Input Voltage Configurations: Designed to accommodate power configurations including 1-phase 230V AC up to 3-phase 400V/500V AC depending on the attached inverter series.

• Basic Connection Interfaces: Equipped with integrated terminals for standard operations, including dedicated start/stop inputs, an analog input channel, and a minimal set of freely programmable digital inputs and outputs.

• Termination Methods: Features pluggable control terminals utilizing high-reliability spring-clamp mechanisms to guarantee secure connection under vibration.

• Expansion Bus Interface: Built-in local backplane bus connector providing high-speed parallel data communication to optional fieldbus or function modules.

• Environmental Protection: Rated primarily under IP20 protection standards, necessitating installation within a protective control cabinet.

• Ambient Temperature Range: Maintains stable continuous operation up to 45°C without the need for performance derating, with a maximum permissible operating limit of 55°C under reduced load parameters.

Product Advantages

Lenze Base Units deliver optimized operational efficiency and flexibility across modular machinery concepts:

• Simplified Installation Mechanics: The plug-and-go terminal configuration allows for straightforward pre-wiring of the control cabinet before the active control intelligence or inverter module is mounted.

• Effortless Hardware Exchangability: Because the field wiring terminates directly onto the base unit, active electronic modules can be serviced or upgraded without disconnecting a single signal cable, dramatically reducing repair times.

• Scalable System Architecture: Functions as a flexible baseline that allows standard machinery to be customized easily; a baseline machine can be upgraded from simple speed control to fieldbus-connected motion control simply by swapping pluggable modules on the same base unit.

• Dynamic Motor Protection: Often integrates fundamental hardware-level motor overload protection (I2t monitoring) and short-circuit detection directly into the baseline circuit paths.

• Reliable Vibration Tolerance: The use of tension spring contact technology ensures constant pressure on the signal wires, eliminating terminal loosening and intermittent faults caused by operational machinery vibrations.

Product Applications

These foundational hardware units are utilized throughout various automated transport and positioning sectors:

• Industrial Conveyor Systems: Acting as the foundational power and signal terminal for baggage handling, roller conveyors, and distribution sorting lines.

• Pump and Fan Implementations: Serving as the baseline controller mounting station for fluid management systems, localized industrial ventilation, and cooling towers.

• Decentralized Drive Layouts: Positioned directly on machine frames within field installations to manage localized drive clusters in automotive assembly areas.

• Material Handling Machinery: Providing the terminal interface for palletizers, simple lifting tables, and packaging feeder mechanisms.

• Building Automation Infrastructure: Organizing the localized control wiring for commercial HVAC dampeners, air handlers, and secondary water loops.

Important Precautions

To preserve the electrical integrity of the system and prevent operational faults, the following handling criteria must be enforced:

• Complete Power Separation: Always isolate the external main power grid before sliding an active inverter module or function module into or out of the base unit receptacle to prevent terminal arcing.

• Correct Wiring Polarity: Double-check the layout parameters of the digital and analog input circuits prior to initial powering; cross-wiring power lines into logic inputs will result in immediate backplane failure.

• Solid Backplane Mounting: Ensure the base unit is securely fastened to a flat, grounded control cabinet backplate using all designated mounting points to maintain correct physical alignment for plug-in modules.

• Unused Slot Preservation: Protect the internal multi-pin backplane connector from dust, metallic shavings, and moisture by ensuring an active module or an approved protective cover is always installed over the slot.

• Conductor Strain Relief: Field cables must be secured to external cable management brackets; allowing the physical weight of thick wiring looms to pull directly on the pluggable terminals can cause mechanical fatigue and connection dropouts over time.

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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