3ADT209026R0002 | ABB | DCF804-0050 External Field Exciters
Delivery time 3 days
Product origin New/used
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The ABB 3ADT209026R0002 is a DCF804-0050 external field exciterused in DCS800 in
As a dedicated external excitation unit for ABB DCS800 series DC drives, this model is specifically designed for excitation reverse and four-quadrant operation, making it a core component of heavy-duty drive systems.
Product Positioning and Core Features
This unit is a 2-phase, 4-quadrant fully controlled external excitation device, independently installed outside the converter module. Its core capabilities cover bidirectional excitation current control and full-condition operation, perfectly suited for industrial scenarios with stringent dynamic performance requirements.
Topology: Dual-arm fully controlled structure, supporting forward and reverse excitation current output, enabling motor forward and reverse rotation and four-quadrant energy flow.
Compatible Platform: Deeply compatible with the entire ABB DCS800 series drive modules, enabling command and status interaction via the DCSLink bus.
Electrical Specifications: Maximum input voltage 690 V AC, rated output current 0.3–50 A, built-in input line reactor, no additional configuration required.
Flexible Configuration: Supports single-phase/three-phase power supply; optional autotransformer to reduce excitation circuit ripple and optimize motor operation stability.
Applicable Power Range: Compatible with high-power models of DCS800 converter modules D6 and D7 (which lack built-in excitation units); also suitable for D5 and below applications requiring enhanced excitation capabilities.
Key Application Scenarios:
Metallurgical Rolling Mills: Meets the dynamic requirements of frequent forward and reverse rotation of rolls and precise tension control.
Lifting and Hoisting Equipment: Enables smooth lifting and lowering of heavy objects and bidirectional energy feedback, improving system efficiency.
Industrial Test Benches: Simulates full-condition operation of the motor to verify the equipment's extreme performance.
Marine Propulsion and Mining Machinery: Adapts to harsh environments, providing highly reliable excitation support.
Selection and Configuration Considerations:
Matching Principle: Select based on motor excitation voltage, rated current, and grid voltage level; prioritize confirming whether an autotransformer is required.
Accessories List: Standard configuration includes excitation contactors, fuses, and other protection components; high-power scenarios require additional overvoltage protection units (such as DCF506). Installation specifications: Install in a separate cabinet, strictly follow EMC requirements, and maintain a reasonable distance from the main converter to reduce electromagnetic interference.
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