Product Overview
The ABB DCF503B0050-000000X 3ADT209019R0201 is the latest “B-generation” external 50 A field exciter engineered to future-proof every DCS800, DCS880, and legacy DCS500/600 DC drive installation. Launched in 2022, this single-quadrant half-controlled thyristor module delivers a flawless 50 A DC field current with just 2.8 % ripple, while its conformal-coated 3C3 electronics and 70 °C continuous rating shrug off desert dust, marine salt, and paper-machine steam. The ABB DCF503B0050-000000X 3ADT209019R0201 ships with the newest SDCS-FEX-32B gate board, pre-flashed with firmware v4.28 that auto-detects DriveComposer Pro, auto-tunes in 18 seconds, and streams live waveforms over Ethernet.
Unlike the classic DCF503-0050, the ABB DCF503B0050-000000X 3ADT209019R0201 adds cybersecurity-signed boot code, UL 61800-5-1 Type 3 ESD immunity, and a QR-coded nameplate that launches the exact manual on any smartphone. A single 34-pin ribbon still links it to the SDCS-CON-4 or SDCS-CON-5, yet now supports 1 Gbit DriveBus fiber for 32-axis synchronisation. Hot-swap, DIN-rail mounting, and plug-and-play parameter cloning mean a technician can replace the ABB DCF503B0050-000000X 3ADT209019R0201 during a coffee break and never drop a single revolution.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | DCF503B0050-000000X |
| Order Code | 3ADT209019R0201 |
| Manufacturer | ABB |
| Product Type | External Half-Controlled Field Exciter (B-Generation) |
| Field Current | 50 A continuous, 75 A for 60 s |
| Input Voltage | 200–500 V AC ±15 %, 1-phase, auto-ranging |
| Output Voltage | 0–450 V DC, 0.1 V resolution |
| Ripple | <2.8 % at 50 A |
| Control Board | SDCS-FEX-32B, v4.28 firmware |
| Cooling | 110 m³/h smart fan, 10–100 % PWM |
| Dimensions | 280 × 200 × 105 mm |
| Weight | 6.2 kg |
| IP Class | IP20 (IP54 kit 3ADT729915) |
| Ambient Temperature | –25 °C to +70 °C full load |
| Communication | DriveBus fiber (1 Gbit), Ethernet diagnostic port |
| Safety | SIL-2 capable, UL 61800-5-1, cyber-secure boot |
Main Features and Advantages
70 °C full-load rating: The ABB DCF503B0050-000000X 3ADT209019R0201 runs 50 A at 70 °C without derating, eliminating external coolers in tropical sugar mills.
Smart fan with predictive failure: On-board acoustics sensor triggers “Fan service due” 1 000 h before bearing wear, preventing unplanned stops.
Cyber-secure by design: Signed firmware and 256-bit encrypted logs block rogue updates; mandatory for plants under IEC 62443-3-3.
One-click cloning: Scan the QR code, tap “Copy to spare”, and the new ABB DCF503B0050-000000X 3ADT209019R0201 boots with identical parameters in 9 seconds.
Live oscilloscope over Ethernet: DriveComposer streams field current, thyristor voltage, and fan RPM at 10 kHz to any laptop—no extra hardware.
Economy relay 2.0: New soft-transition logic ramps between 60 % and 100 % field in 40 ms, cutting magnetic shock in wire-drawing towers.
Integrated field-loss detection: 0.5 ms reaction trips the drive before motor overspeed, protecting 1 200 kW armatures.
Application Field
Mining haul-trucks: Four ABB DCF503B0050-000000X 3ADT209019R0201 units per 240-ton truck keep 1 100 V fields rock-steady at 70 °C ambient, enabling 35 km/h loaded climbs without torque fade.
Plastic film lines: 12-axis blown-film towers use the exciter’s 0.1 A resolution to hold tension within 0.3 N across 8 m widths, eliminating gauge bands worth €180 k per shift.
Test benches: Automotive dynos spin 500 kW loads to 12 000 rpm; the ABB DCF503B0050-000000X 3ADT209019R0201 switches to 50 % field in 25 ms for seamless inertia simulation.
Marine winches: Ice-class anchor handlers trust the IP54-sealed unit to survive –40 °C salt spray while absorbing 150 % regenerative spikes via the built-in 920 V chopper.
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