ABB SDCS-CON-2 (COAAT) – 3ADT220090R2 Control Board for DCS500/DCS600 DC Drives

The ABB SDCS-CON-2 (COAAT) control board, part number 3ADT220090R2, is the core controller used in many ABB DCS500/DCS600 DC drive frames. It handles speed and torque regulation, manages feedback signals, and coordinates the drive’s I/O and option modules. From my experience, this board is the “brain” of the system—when it’s healthy, the rest of the drive typically runs with predictable stability.

One thing I appreciate is how straightforward replacement tends to be: it’s a plug-in board inside the drive cabinet, so swap-outs can usually be done without rewiring, and parameters can be restored from a saved backup through the drive interface or PC tool. You might notice that this cuts downtime significantly during maintenance.

Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock items; no more than one month at the latest
• Payment: 50% advance payment, full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• Direct fit for ABB DCS500/DCS600 DC drives – Designed as the primary control board in these platforms, ensuring native compatibility.
• Integrated regulation and I/O handling – Manages speed/torque loops and coordinates analog/digital I/O from the drive.
• Feedback flexibility – Supports tachometer or encoder feedback (often via PIN/IOB option modules), which helps with retrofit scenarios.
• Plug-in replacement – Installs on existing card guides/backplane; typically no field soldering required.
• Diagnostics support – Status LEDs and test points aid quick fault isolation; works with ABB service tools in most cases.
• Industrial durability – Built for cabinet environments with robust PCB construction that seems to hold up well in continuous-duty applications.

Technical Specifications

Brand / Model	ABB SDCS-CON-2 (COAAT)
Manufacturer P/N	3ADT220090R2
Function	Control board for ABB DCS500/DCS600 DC drives (speed/torque control, I/O coordination)
HS Code	8538.90 (Parts suitable for use with switching or control apparatus)
Power Requirements	Supplied via host drive backplane; nominal 24 VDC control supply (low power consumption)
Operating Temperature	Typically 0…+55 °C inside a closed industrial cabinet (per drive system rating)
Signal I/O Types	±10 V analog references, 24 VDC digital I/O; tachometer/encoder feedback when used with appropriate option modules
Communication Interfaces	Drive backplane control bus; fieldbus options available via add-on modules (e.g., Profibus/Modbus depending on drive configuration)
Installation Method	Plug-in PCB on card guides within the DCS drive; ESD-safe handling required

Application Fields

This board is typically found in legacy and running ABB DC drive systems across:

• Metals processing (rolling mills, coil lines, tension control)
• Paper & converting (winders, unwinders, calendars)
• Mining & materials handling (conveyors, hoists with DC motors)
• Rubber, plastics, and test stands where DC speed regulation is required

A maintenance supervisor shared with us that swapping in a prepared SDCS-CON-2 and reloading parameters brought a mill line back in under two hours—faster than expected given the age of the cabinet.

Advantages & Value

• Reliability in installed base – A proven board with long field history; failures are rare when cooling and supply are stable.
• Compatibility – Native fit for DCS500/DCS600 cabinets; minimal re-engineering during replacement.
• Cost control – Extends the life of existing DC equipment, postponing high-cost migration projects.
• Technical support – Parameter backup/restore and clear diagnostics help reduce commissioning time.

Installation & Maintenance

• Installation environment – Mount inside an industrial control cabinet (IP-rated), with adequate ventilation. Follow ABB clearances and ensure the aux 24 VDC supply is stable and clean.
• Wiring – Board interfaces via the drive backplane and dedicated connectors. Verify all option modules (I/O, feedback, comms) seat firmly before power-up.
• Safety – Isolate mains and DC bus, wait for DC link discharge, and use ESD protection. Handle by edges only.
• Routine maintenance – Periodically clean cabinet filters, check fan operation, and inspect connectors. Back up parameters after any changes; firmware/parameter sets can typically be managed via ABB tools.
• Calibration/verification – After replacement, verify analog scaling and feedback polarity. A quick speed loop tune is recommended, especially if feedback hardware was touched.

Quality & Certifications

• Manufactured under ISO 9001 quality systems (ABB)
• Part of CE-marked drive assemblies; UL compliance at the system level
• RoHS conformity typically applicable to later production; legacy variants may differ
• Warranty: 365 days from shipment

Supporting/Related Components

Depending on your drive frame and feedback needs, the SDCS-CON-2 (COAAT) often works alongside:

• ABB SDCS-PIN-41 – Pulse encoder interface module for speed feedback
• ABB SDCS-IOB-23 – I/O expansion board for additional digital/analog channels
• ABB SDCS-COM fieldbus modules – Communication options such as Profibus or Modbus (drive-dependent)
• ABB SDCS-POW power/aux boards – Auxiliary supply and conditioning modules used in select frames

If you share the exact drive type code and feedback method (tachometer vs. encoder), we can verify the correct option set and firmware package before shipment.