ABB 3BNP004429R1 CI547 Communication Module Board

3ADT306311P2103 ABB SDCS-FEX-2 | DCS500 DCS600 Exciter

3ADT306311P2103 ABB SDCS-FEX-2 | DCS500 DCS600 Exciter

Availability: 10 left in stock

Product Overview The ABB SDCS-FEX-2 (Part Number: 3ADT306311P2103) functions as a high-precision two-phase field excitation module for DCS500 and DCS600 DC drive systems. It regulates the...

SKU: SDCS-FEX-2 3ADT306311P2103

Manufacturer: ABB
Product No.: SDCS-FEX-2 3ADT306311P2103
Product Type: DC Drive Spare Parts
Product Origin: USA
Payment:T/T, Western Union
Weight: 320g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The ABB SDCS-FEX-2 (Part Number: 3ADT306311P2103) functions as a high-precision two-phase field excitation module for DCS500 and DCS600 DC drive systems. It regulates the current supplied to the motor’s field windings, maintaining constant torque and facilitating operation beyond base speeds through advanced field weakening logic. This board bridges the gap between the drive's control software and the physical motor excitation, ensuring stable performance across varying thermal and load profiles. We supply this unit as 100% Brand New and Original to ensure long-term reliability for legacy drive maintenance.

Technical Specifications

Parameter	Specification
Model Number	SDCS-FEX-2
Part Number	3ADT306311P2103
Input Phase	2-Phase AC Input
Maximum Field Voltage	500 VDC
Maximum Field Current	40 A (Configuration dependent)
Compatibility	ABB DCS500 / DCS600 Converter Systems
Control Logic	Thyristor-based phase regulation
Mounting	Internal Plug-in PCB (Open-frame)
Dimensions	140 mm × 205 mm × 38 mm
Weight	0.32 kg – 1.0 kg

Engineering Advantages

Dynamic Field Weakening: The SDCS-FEX-2 enables constant horsepower operation at speeds exceeding the motor's rated base speed. This capability allows engineers to optimize machine throughput for applications requiring high-speed, low-torque cycles.
Thyristor-Phase Regulation: By utilizing thyristor-based control, the board delivers exceptionally smooth DC excitation. This precision minimizes torque ripple and reduces mechanical stress on the motor shaft and connected gearboxes.
Integrated Safety Supervision: The module monitors field current in real-time. It triggers an immediate drive trip upon detecting field loss, overcurrent, or overheating, preventing catastrophic motor runaway or winding insulation failure.
Simplified Modular Integration: The plug-in design interfaces directly with SDCS-POW-1 and SDCS-CON boards via standard ribbon cables and headers. This reduces wiring complexity and allows for rapid "swap-and-run" replacement during critical downtime windows.
Optimized Thermal Dissipation: The open-frame PCB layout utilizes the converter cabinet’s internal airflow to maintain component temperatures. This design ensures the board handles up to 40A of excitation current without requiring dedicated external cooling fans.

FAQs

Is the SDCS-FEX-2 compatible with the newer DCS800 series?

No. The SDCS-FEX-2 (3ADT306311P2103) specifically targets the legacy DCS500 and DCS600 architectures. For DCS800 systems, you must utilize the SDCS-FEX-4 or subsequent excitation units designed for the newer firmware and hardware interfaces.

Can I use this board for a 1-phase field application?

The SDCS-FEX-2 is designed as a 2-phase module to provide a more stable and higher-capacity DC output. While some configurations might allow limited input, you should strictly follow the DCS500/DCS600 manual wiring diagrams to avoid damaging the thyristor bridge.

What precautions should I take during installation?

Always discharge the DC drive’s bus capacitors before installing the plug-in board. Ensure the ribbon cable connectors seat firmly in the headers of the control and power boards. Improperly seated connectors can lead to intermittent field loss faults.

Does this unit come with factory warranty?

Yes. Despite being a legacy component, our 100% Brand New and Original units come with a full 12-month factory warranty. We ship these modules in anti-static factory packaging to preserve the integrity of the thyristors and logic components.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.