ProductPRODUCT
Featured products
Contact Us
- ABB
- SDCS-FEX-32 DCF503
- Field Exciter Board Control Board
- Sweden
- 175 mm × 120 mm × 55 mm
- 0.6kg
- 3BSE005715R1
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 64
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| sales@plc-automations.com | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
Product Introduction
The SDCS‑FEX‑32 DCF503 (part number 3BSE005715R1) is a high‑capacity field‑excitation and rectifier‑bridge module intended for integration into the modular drive control systems of the brand. It is designed to manage the rotor/field supply of large synchronous machines or DC drives, especially in the architecture where an external field‑exciter rectifier (DCF503 or DCF504) is used in combination with the FEX card.
Specifically, the FEX‑32 design supports an external DCF503/504 converter (semi‑controlled or fully‑controlled) and offers monitoring, control and protection functions of the field circuit. It interfaces with the drive control rack, providing field‑excitation current regulation, feedback and fault‑trip capabilities. According to documentation, this variant is suitable where the field exciter module is external and the FEX‑32 board is used as the interface/control part.
This module is intended for demanding industrial environments—power‑generation, large DC drives (mining, steel rolling, heavy materials handling), marine/offshore propulsion, and other applications where synchronous machines or large DC motors require robust field‑excitation control.
Technical Parameters
| Parameter | Description |
|---|---|
| Model | SDCS‑FEX‑32 DCF503 (3BSE005715R1) |
| Brand | ABB |
| Series | DCS Drive Control – Field‑Excitation / Rectifier Bridge Module Series |
| Function | Field‑excitation interface/control board: supports external rectifier DCF503/504. Manages field current feedback, protection and drive integration. |
| Field Configuration | External rectifier type DCF503/504 with FEX‑32 board for control. |
| Typical Field Voltage | Up to ~500 V (for internal FEX variants) and higher for external systems; documentation indicates FEX‑32 supports external rectifiers for larger systems. |
| Operating Temperature | Approximately −20 °C to +60 °C or heavier‑duty depending on installation. |
| Dimensions (approx.) | Approx. 175 mm × 120 mm × 55 mm (based on related FEX‑32A spec) |
| Weight (kg) | Approx. 0.60 kg (based on FEX‑32A spec) |
| Mounting Type | Plug‑in board within drive control rack, alongside control and power modules. |
| Protection Rating | Industrial internal module; not necessarily full IP rating (varies by installation). |
| Typical Use | Large DC drives or synchronous motor excitation circuits where field supply is external and board controls/monitors field exciter. |
Product Application
The SDCS‑FEX‑32 DCF503 module is used in industrial automation systems where large machines (DC drives or synchronous motors) require robust and precise field excitation managed via an external rectifier and interface board. Typical applications include:
-
Mining conveyors, steel‑plant rolling mills and large industrial drives with field excitation subsystems, where a dedicated external rectifier (DCF503/504) is used and the FEX‑32 board interfaces with the drive control logic.
-
Power‑generation synchronous motors/generators, where the field excitation is handled by a separate module and the FEX‑32 board monitors current, provides fault trip logic and integrates with drive control.
-
Marine and offshore propulsion drives using synchronous machines, where modular excitation architecture improves serviceability, redundancy and reliability under harsh conditions.
-
Process automation plants (cement, pulp & paper, petrochemical) where DC drives with field circuits demand modular excite control for high uptime and maintenance ease.
-
Retrofit or modernization of older drive systems: replacing or upgrading field‑excitation boards with FEX‑32 enables improved diagnostics, modularity and future compatibility.
In all these contexts, the module acts as the “brain” of the field‑excitation sub‑system: monitoring field current, issuing fault trips (e.g., “No Field” fault), providing feedback to the drive logic, integrating with supervisory systems and supporting the overall drive system stability and uptime.
Product Advantages
-
High Industrial Capability: Supports external rectifier systems (DCF503/504) enabling high‑field current applications and large machine drives.
-
Modular Design: Plug‑in board simplifies installation, replacement and service without full system shutdown.
-
Advanced Protection & Monitoring: Integrated feedback of field current, fault thresholds (over‑current, field loss), enabling fast fault isolation and increased machine safety.
-
Space Efficiency: Compact size (approx. 175×120×55 mm) and modest weight (~0.6 kg) minimise cabinet footprint and installation overhead.
-
Series Compatibility: Designed to integrate with the DCS modular architecture—control boards, power modules, I/O boards—ensuring system continuity.
-
Improved Serviceability: Modular board approach allows faster maintenance, spare‑parts management and upgrades, reducing downtime.
-
Future‑Proofing: With support for external field‑excitation rectifiers and modern diagnostics, it enables drive systems to scale and adapt.
-
Cost‑Effective Operation: By enhancing system reliability, monitoring and modular maintenance, lifecycle cost is reduced.
Brand Overview
Brand: ABB
ABB is a leading global brand in industrial automation, drive systems and power conversion. Their modular drive‑control hardware—such as the FEX‑32 board—supports heavy industry, utilities, marine, manufacturing and infrastructure sectors. This product embodies ABB’s commitment to reliability, modularity and long‑term serviceability.
Product Series
Series Name: DCS Drive Control – Field‑Excitation / Rectifier Interface Module Series
Within this series, modules include internal excitation cards (FEX‑1, FEX‑2, FEX‑2A), external rectifier interface cards (FEX‑32, FEX‑31), along with power supply modules (POW series), control logic boards (CON series), communication modules (COM/BAB series) etc. The FEX‑32 is part of the board family that manages excitation in external‑rectifier configurations for large drive systems.
Related or Same‑Series Models (5 Recommended)
| Model | Description | Typical Use/System | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| SDCS‑FEX‑1 | Fixed internal excitation card (diode bridge) | Smaller drive systems | ~210×140×35 | ~0.30 |
| SDCS‑FEX‑2 | Internal semi‑controlled bridge excitation card | Mid‑size drives | ~205×140×38 | ~0.32 |
| SDCS‑FEX‑2A | Higher‑capability internal excitation/aux‑power board | Larger field circuits | ~95×63×241 or alternate | ~0.30–0.40 |
| SDCS‑FEX‑31 | Interface board for external rectifier DCF503/504 variant | High‑power field circuits | ~205×140×38 | ~0.32 |
| SDCS‑POW‑1 | Auxiliary power supply board for drive rack | Drive rack auxiliary power | ~215×150×35 | ~0.34 |
Popular ABB Models (5 Recommended from the Brand)
| Model | Product Type | Application Area | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| ACS880‑01‑07A6‑3 | AC drive | Heavy industrial motors & automation | 390×260×160 | ~5.20 |
| DCS800‑S01‑0045‑05 | DC drive controller | Large DC motor drive systems | 480×300×200 | ~7.60 |
| ACS580‑01‑025A‑4 | Variable frequency drive | HVAC, pump stations, conveyors | 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 main role of the SDCS‑FEX‑32 DCF503 board?
A1: It is the field‑excitation interface/control board for external rectifier systems (DCF503/504), managing field current, monitoring, and integrating with drive logic.
Q2: In what drive system architectures is it used?
A2: It is used in large DC drives or synchronous machine excitation systems where an external rectifier (DCF503/504) is employed and the FEX‑32 board interfaces control logic.
Q3: What are the approximate dimensions and weight of the board?
A3: Roughly 175 mm × 120 mm × 55 mm in size and ~0.60 kg in weight (based on close variant specs).
Q4: Does this board support high‑current field circuits?
A4: Yes — it is designed for larger field/rectifier systems, supporting external rectifier modules and higher current/voltage loads.
Q5: What protection features are included?
A5: It supports monitoring of field current, fault trips (e.g., “No Field”), communication with rectifier, and protection logic built into the excitation circuit interface.
Q6: How does this board improve maintenance and reliability?
A6: Modular plug‑in design means faster replacement, fewer system interruptions, better diagnostics and system integration—thus improving uptime.
Q7: Can it be used in marine or harsh‑environment applications?
A7: Yes — it supports industrial conditions, external rectifier architectures, and modular installation, making it suitable for demanding environments.
Q8: What series does this board belong to and why is that important?
A8: It belongs to the DCS Drive Control – Field‑Excitation/Rectifier Interface Module series, meaning it is compatible with the modular drive architecture, simplifying system design and spare‑parts strategy.
Q9: What sorts of machines benefit from this board?
A9: Large DC motors, synchronous machines (motors/generators), drive systems in steel, mining, power generation, marine/offshore sectors benefit significantly from this excitation control board.
Q10: What should be checked when installing or replacing this board?
A10: Verify compatibility with the external rectifier (DCF503/504), check correct slot in drive rack, confirm cooling/ventilation, check firmware/logic compatibility with control board (CON series), and ensure field‑voltage/current match the machine requirements.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.