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- ABB
- SDCS-FEX-1
- Field Excitation Board
- Sweden
- 8.3 cm × 4.4 cm × 13.3 cm
- 0.1kg
- 3ADT306000R1
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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Product Introduction
The SDCS‑FEX‑1 (part number 3ADT306000R1) is a field‑excitation control board engineered for ABB’s DCS drive system architecture. It serves as a precision excitation regulator for synchronous machines, controlling the magnetic field current in rotor windings of large motors or generators. The board integrates into a drive control rack and ensures that the excitation module receives correct current to maintain stable operation, efficient performance and safe machine behaviour.
Designed for industrial use, this board enables reliable excitation control under heavy duty conditions, supports modular installation, and forms part of ABB’s wider modular control system for drives and automation.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | SDCS‑FEX‑1 (3ADT306000R1) |
| Brand | ABB |
| Series | DCS Drive Control / Field‑Excitation Modules |
| Function | Field excitation board: regulates rotor field current of synchronous machines |
| Input Voltage | 24 V DC logic/control supply |
| Operating Voltage | Typical excitation control for synchronous machines |
| Dimensions (L×W×H) | Approximately 8.3 cm × 4.4 cm × 13.3 cm |
| Weight | Approximately 0.10 kg |
| Operating Temperature | Typical industrial environment (0 °C to +55 °C) |
| Storage Temperature | Approx. ‑25 °C to +70 °C |
| Mounting Type | Plug‑in module within drive control rack |
| Protection Class | IP20 (internal cabinet equipment) |
| Typical Use | Excitation current regulation in synchronous machines within DCS drive systems |
Product Application
The SDCS‑FEX‑1 board finds application in numerous industrial scenarios where synchronous machines (motors or generators) require precise excitation control. Example uses include:
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Large synchronous motor drives in heavy industry (steel mills, mining conveyors) where stable field excitation is critical.
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Generator excitation systems in power generation plants, ensuring correct rotor magnetisation and generator stability.
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Industrial automation systems where modular drive architectures rely on dedicated excitation boards to control field circuits.
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Upgrades or retrofits of legacy DCS drive systems requiring modern excitation modules to improve performance and serviceability.
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Marine and offshore installations where synchronous drives are used for propulsion or auxiliary systems and require compact, robust excitation boards.
In all these settings, the SDCS‑FEX‑1 ensures precise field current control, enhances machine stability, supports diagnostics and improves system uptime.
Product Advantages
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High Precision Control: The board regulates the field current of synchronous machines accurately, enhancing performance and efficiency.
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Compact & Lightweight: With dimensions of around 8.3 cm × 4.4 cm × 13.3 cm and weight of ~0.10 kg, it occupies minimal rack space and simplifies installation.
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Industrial‑Grade Reliability: Designed for operation in harsh environments, supporting heavy‑duty drives and high uptime demands.
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Modular Integration: Easily inserted into the control rack of the DCS system, enabling modular upgrades and maintenance.
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System Compatibility: Fully compatible with ABB’s DCS drive architecture, enabling seamless system design and replacement.
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Reduced Maintenance: The board’s precise control and diagnostics reduce the risk of malfunction and prolong system life.
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Cost‑Effective Solution: By delivering stable excitation control, it reduces machine stress, enhances reliability, and lowers lifecycle costs.
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Enhanced Machine Stability: By maintaining accurate field current, it contributes to smoother machine regulation, reduced vibration and improved system response.
Brand Overview
Brand: ABB
ABB is a world‑leading supplier of industrial automation, drives and control systems. Known for high reliability and system integration, ABB’s modular control boards—such as the SDCS‑FEX‑1—support complex drive and automation architectures worldwide.
Product Series
Series Name: DCS Drive Control / Field‑Excitation Modules
This series covers modular control hardware designed for ABB’s DCS systems, including field excitation boards (FEX or FEP series), control logic boards (CON series), communication boards (COM series), I/O and measurement modules. The SDCS‑FEX‑1 is part of the “FEX” subset (field‑excitation), responsible for regulating the rotor excitation field in synchronous machines within drive systems.
Related or Same‑Series Models (5 Recommended)
| Model | Description | Typical Voltage/System | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| SDCS‑FEX‑2 | Enhanced field‑excitation board variant | 24 V DC control logic | ~8.3×4.4×13.3 cm | ~0.10 |
| SDCS‑FEP‑1 | Field‑excitation/protection board for drives | Up to ~500 V line systems | ~342×16×75 mm | ~8.00* |
| SDCS‑FEX‑2A | Further upgraded excitation/bridge board | High‑capacity excitation systems | ~380×250×180 mm | ~5.80 |
| SDCS‑POW‑1 | Power‑supply module for DCS control rack | 24 V logic + drive supply | ~215×150×35 mm | ~0.34 |
| SDCS‑CON‑2B | Control logic board in the same series | 24 V control logic | ~215×150×35 mm | ~0.49 |
* The FEP‑1’s full assembly weight may differ (board only much lighter).
Popular ABB Models (5 Recommended from the Brand)
| Model | Product Type | Application Area | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| ACS880‑01‑07A6‑3 | AC Drive | Process automation, heavy machinery | 390×260×160 | ~5.20 |
| DCS800‑S01‑0045‑05 | DC Drive Controller | Large‑scale DC drive systems | 480×300×200 | ~7.60 |
| ACS580‑01‑025A‑4 | Variable Frequency Drive | HVAC, pumping, conveyor systems | 380×250×180 | ~5.80 |
| ACS355‑03E‑04A7‑2 | Compact AC Drive | Light automation, OEM machinery | 200×90×180 | ~2.50 |
| ACS150‑03E‑07A5‑4 | Micro AC Drive | Small motors, fans, OEM applications | 180×75×160 | ~2.10 |
FAQ (Frequently Asked Questions)
Q1: What is the primary function of the SDCS‑FEX‑1 board?
A1: It regulates the field excitation current in synchronous motors or generators, ensuring proper rotor magnetisation and machine stability.
Q2: Which voltage does it use for control supply?
A2: It operates with a typical 24 V DC logic/control supply voltage.
Q3: What are its approximate dimensions and weight?
A3: Dimensions are roughly 8.3 cm × 4.4 cm × 13.3 cm and weight is about 0.10 kg.
Q4: What kind of machines is it compatible with?
A4: It is compatible with synchronous machines (motors or generators) and integrates into modular drive systems needing excitation control.
Q5: Where is the module installed?
A5: It is installed as a card or board within the drive control rack, part of the drive’s excitation subsystem.
Q6: What major advantages does this board provide?
A6: It provides compact size, precise excitation control, modular integration, reduced maintenance, and improved machine stability.
Q7: Can it be used for retrofits of older drive systems?
A7: Yes – its modular form and series compatibility make it suitable for upgrading legacy drive racks to modern excitation control.
Q8: What environmental conditions is it rated for?
A8: Designed for industrial environments with typical operating temperature around 0 °C to +55 °C and storage down to ‑25 °C.
Q9: How does it impact machine performance?
A9: By maintaining proper field current, it improves machine response, reduces vibration or instability, and enhances overall drive system reliability.
Q10: What series does this board belong to and how does that help?
A10: It belongs to the DCS Drive Control / Field‑Excitation module series, ensuring compatibility, modular replacement and simplified system architecture within ABB’s modular drive ecosystem.
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