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- ABB
- SDCS-FEX-2A
- Power Supply Circuit Board
- Sweden
- 95 mm × 63 mm × 241 mm
- 0.4kg
- 3ADT311500R0001
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
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- COO
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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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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All our products are priced very favorably because we have our own warehouse and supply.
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Product Introduction
The SDCS‑FEX‑2A (3ADT311500R0001) is a power‑supply / field‑excitation module designed for integration into ABB’s modular drive system architecture. Its role is to provide reliable auxiliary power and field excitation regulation within DC and synchronous‑machine drive racks, especially under demanding industrial conditions.
With design emphasis on compactness, robust operation, high efficiency and modular integration, the board suits industrial automation applications where space is at a premium, reliability is critical, and serviceability is required. The “2A” variant of the FEX family typically supports higher field‑current limits compared to earlier FEX‑1 versions, allowing more demanding motor/drive configurations.
Its installation typically occurs within the control rack of a drive system, supplying field‑excitation circuits or auxiliary power rails, monitoring health of the excitation system, and interfacing with control logic boards. With this board in place, drive systems gain enhanced reliability, improved maintainability, and simplified service swaps when needed.
Technical Parameters
| Parameter | Description |
|---|---|
| Model | SDCS‑FEX‑2A (3ADT311500R0001) |
| Brand | ABB |
| Series | DCS Field‑Excitation / Auxiliary Power Modules |
| Function | Power supply & field‑excitation board: supplies regulated voltage/current to field circuits or auxiliary drives |
| Input Voltage | 220 V AC nominal (typical industrial supply) |
| Output Frequency | Approx. 30 kHz (switching frequency) |
| Dimensions (L×W×H) | ~ 95 mm × 63 mm × 241 mm (or alternate dimension sets: ~356 × 100 × 12 mm) |
| Weight (kg) | ~ 0.30 kg – 0.40 kg (approximate) |
| Operating Temperature | ‑20 °C to +70 °C (industrial grade) |
| Humidity Range | Up to 95% non‑condensing |
| Mounting Type | Plug‑in circuit board/module for drive rack |
| Protection Class | IP20 (for internal installation) |
| Typical Use | Field‑excitation or auxiliary power supply for DC drives, synchronous motors, drive control racks |
Application
The SDCS‑FEX‑2A board is widely used in industrial automation and heavy‑duty drive contexts where reliable auxiliary and field‑excitation power is required. Typical applications include:
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DC drive systems in steel, mining and material‑handling industries, where motors require regulated field current for torque/speed control.
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Synchronous machine excitation systems in power‑generation plants, where stable rotor magnetisation and auxiliary supply from a compact board is essential.
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Modular drive racks in manufacturing plants that utilise field‑excitation or auxiliary supplies for motor drives, where compact, serviceable boards improve uptime.
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Marine and offshore propulsion or auxiliary drive systems, where space is limited, environmental conditions are harsher and modular replacement is critical.
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System retrofit/upgrade projects of older drive architectures: installing a modern FEX‑2A board enables enhanced auxiliary power supply and improved serviceability.
In each of these scenarios, the board enhances system stability, simplifies maintenance and supports high availability operations.
Product Advantages
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High reliability and industrial performance – Built for continuous operation in demanding environments, the board offers stable supplies and robust construction.
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Compact form factor with lightweight design – Fits into tight control rack spaces, reducing footprint and simplifying upgrades or expansions.
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Modular serviceability – Plug‑in installation enables quick replacement, reduced downtime and simplified spare‑parts management.
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Versatile auxiliary/field supply support – Supports field‑excitation needs or auxiliary board supply for larger motor drive systems, improving system flexibility.
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Wider operating range – With ‑20 °C to +70 °C temperature support and up to 95% humidity tolerance, it handles harsh site conditions.
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System‑series compatibility – Designed for ABB’s DCS modular architecture, ensuring fit, interconnect compatibility and ease of integration.
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Improved maintenance & lifecycle cost – By providing a modern, reliable module, it decreases failure risk, simplifies service tasks and lowers total ownership cost.
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Future‑proofing your drive rack – With higher capability than earlier FEX versions, the FEX‑2A ensures readiness for higher‑current field circuits or advanced auxiliary systems.
Brand Overview
Brand: ABB
ABB is a global leader in industrial automation, drives and control systems. Its hardware solutions cover a wide range of sectors including heavy industry, utilities, marine, manufacturing and infrastructure. The SDCS‑FEX‑2A board is part of ABB’s modular drive‑control ecosystem, reflecting the brand’s focus on reliability, modularity and long‑term support.
Product Series
Series Name: DCS Field‑Excitation / Auxiliary Supply Modules
This series is a subset of the broader DCS modular control architecture and covers boards dedicated to providing field‑excitation power, auxiliary supplies and related regulation for motor drives and synchronous machines. It includes FEX series (FEX‑1, FEX‑2, FEX‑2A), FEP series (protection modules) and auxiliary power boards (POW series). The FEX‑2A is a higher‑capability member of this family, designed for more demanding field‑excitation or auxiliary tasks.
Related or Same‑Series Models (5 Recommended)
| Model | Description | Typical Use/System | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| SDCS‑FEX‑1 | Earlier generation field‑excitation board | ≤12 A field current systems | ~210×140×35 | ~0.30 |
| SDCS‑FEX‑2 | Standard field‑excitation board before “2A” | Up to ~16 A field circuits | ~205×140×38 | ~0.32 |
| SDCS‑FEX‑2A | (This product) Higher‑capability variant | Upgraded field‑excitation systems | ~95×63×241 (or alternate) | ~0.30–0.40 |
| SDCS‑FEP‑1 | Excitation/protection interface board | Drive protection & field control | ~342×16×75 | ~0.08 (board only) |
| SDCS‑POW‑1 | Auxiliary power supply module | Drive rack auxiliary supply | ~215×150×35 | ~0.34 |
Popular ABB Models (5 Recommended from the Brand)
| Model | Product Type | Typical Application | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| ACS880‑01‑07A6‑3 | AC drive | Heavy‑duty industrial motors | 390×260×160 | ~5.20 |
| DCS800‑S01‑0045‑05 | DC drive controller | Large DC motor drives | 480×300×200 | ~7.60 |
| ACS580‑01‑025A‑4 | Variable frequency drive | Pumps, HVAC, conveyors | 380×250×180 | ~5.80 |
| ACS355‑03E‑04A7‑2 | Compact AC drive | OEM equipment, light automation | 200×90×180 | ~2.50 |
| ACS150‑03E‑07A5‑4 | Micro AC drive | Small motors, fans, OEM applications | 180×75×160 | ~2.10 |
FAQ (10 QA)
Q1: What is the primary function of the SDCS‑FEX‑2A board?
A1: It serves as a field‑excitation or auxiliary power supply module, regulating field current or auxiliary board power within a drive rack.
Q2: What voltage supply does the board typically expect?
A2: A nominal input of ~220 V AC is listed, with switching output and control logic support.
Q3: What are the approximate dimensions and weight?
A3: Dimensions around ~95 mm × 63 mm × 241 mm and weight roughly ~0.30–0.40 kg.
Q4: What types of applications is this board used in?
A4: Industrial drive systems, synchronous motor excitation, auxiliary provisions in drive racks, retrofits in mining, steel or marine sectors.
Q5: How does it support system maintenance?
A5: Its modular plug‑in design enables quick replacement, reduces downtime and simplifies spare‑parts management.
Q6: Does it operate in harsh environments?
A6: Yes — it supports operating temperatures up to +70 °C and humidity up to 95% (non‑condensing).
Q7: What advantage does the “2A” variant provide?
A7: The “2A” variant supports higher current or more demanding field‑excitation loads compared to earlier FEX‑1 or FEX‑2 models, enabling system upgrade potential.
Q8: Can it be integrated into older drive systems?
A8: Yes — if the system supports the modular specification and required field‑excitation current, it can serve as an upgrade or replacement board.
Q9: How does it improve overall drive system performance?
A9: By supplying stable excitation or auxiliary power, it improves motor stability, reduces transient effects, enhances uptime and simplifies maintenance.
Q10: What series does this module belong to and why is that important?
A10: It belongs to the DCS Field‑Excitation / Auxiliary Module series, ensuring compatibility with ABB’s modular drive architecture and simplifying integration with other COM, CON, POW boards.
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