Description

Product Overview

The ABB DSQC202 is a legacy robot computer board used in ABB S2/S3 generation industrial robot controllers. It is identified with the alternate part number YB560103-AC and is associated with ABB robot systems such as the IRB2000 and IRB3000. The board serves as the central computer element in the controller, supporting robot program execution, system initialization, motion-control processing, and communication with other controller hardware. Service documentation also confirms that S3 systems equipped with DSQC202 can require specific hardware considerations when replacing or modifying the legacy disk-drive arrangement.

For lifecycle maintenance, this is a controller-level spare rather than a conventional I/O card. Exact revision and memory configuration matter. Personally, I would match the complete board identification and installed system generation before approving a replacement.

Technical Specifications

Third-party technical listings identify the unit as a computer or main CPU board, while ABB-related service documentation specifically references DSQC202-equipped S3 controllers. Exact memory population and hardware revision can vary between boards, so these details should be confirmed from the physical assembly rather than assumed from the base model.

ABB DSQC202

Key Features and Benefits

• Central computer board for legacy ABB S2/S3 robot controllers.
• Supports the controller’s core program and system-processing functions.
• Used in ABB IRB-series robotic installations from earlier controller generations.
• Suitable for corrective maintenance and long-term support of discontinued robot platforms.
• Helps keep existing production equipment operational without replacing the complete controller cabinet.
• Available with different revision suffixes, making traceability important for spare-parts management.
• Appropriate for emergency replacement inventories supporting legacy ABB robotic cells.

The DSQC202 is also listed by industrial robot spare-parts suppliers under ABB’s computer and memory-unit category, reinforcing its role as a controller computer rather than a field I/O module.

Related Models

DSQC215: Another ABB robot computer board used in older S3 controller systems. Documentation groups it with DSQC202 in several legacy controller configurations.

DSQC230: A later computer-board generation used in S3 systems. Certain legacy peripheral modifications required for DSQC202/DSQC215 systems are not required when DSQC230 is installed.

DSQC202 YB560103-AC/5: A commonly referenced variant of the same computer-board family, with the exact suffix identifying the hardware revision or assembly version.

YB560103-AC/8: Another DSQC202-associated assembly designation used for ABB S2/S3 robot controllers. Revision matching should be confirmed before substitution.

Installation and Maintenance

Before replacement, record the complete board label, revision suffix, EPROM and memory configuration, jumper settings, and connected cables. Compare the replacement board against the removed unit before installation.

Use ESD protection throughout handling. Check the controller backplane and peripheral connections for corrosion, contamination, or mechanical damage. After installation, verify controller initialization, program memory recognition, I/O communication, and robot-system diagnostics before enabling automatic operation.

A particularly important point for older S3 systems is peripheral compatibility. ABB-related service documentation shows that systems using DSQC202 or DSQC215 may require specific modifications when certain disk-drive replacements are installed.

For warehouse storage, keep the board in an antistatic package and maintain the complete part-number and revision record.

Product Warranty

Warranty terms depend on supplier condition and testing status. New, surplus, repaired, and refurbished boards may have different coverage, so the purchasing record should specify the hardware revision, inspection status, functional test scope, and warranty period.

For ABB DSQC202, exact controller generation and board revision should be confirmed before shipment. A similar-looking ABB computer board is not necessarily a direct replacement for the installed unit.