Yaskawa SRDA-EAXA01A Servo Amplifier – Obsolete DX100 Spare Part

Technical Dossier

Product Details And Specifications

Yaskawa SRDA-EAXA01A Servo Amplifier – Obsolete DX100 Spare Part

When a SRDA-EAXA01A servo amplifier fails inside a Yaskawa DX100 robot controller, the consequences extend far beyond a single axis going offline. The DX100 platform — widely deployed across automotive body welding lines, arc welding cells, and general-purpose handling systems — is no longer in active production. A single failed axes servo board can force a complete robot cell shutdown. Replacing the entire DX100 system with a current-generation YRC1000 controller requires not only capital expenditure in the range of tens of thousands of dollars per robot, but also full reprogramming of teach pendant jobs, re-certification of safety circuits, and weeks of production downtime. DriveKNMS holds verified physical stock of the SRDA-EAXA01A. Securing a spare now is not a procurement exercise — it is a risk management decision.

Technical Specifications

Note: Electrical parameters such as voltage ratings and current specifications are not published here to prevent misapplication. Please contact our technical team to confirm compatibility with your specific robot model and axis configuration before ordering.

Solving the Discontinued Hardware Crisis

The Yaskawa DX100 controller entered end-of-life status, and sourcing its internal boards through official channels is no longer possible. The SRDA-EAXA01A is the axes servo amplifier board at the core of the DX100's motion control architecture. Without it, the controller cannot drive robot joints. There is no firmware patch, no software workaround, and no partial substitution — the physical board must be present and functional.

For plant managers operating fleets of DX100-based robot cells, the calculus is straightforward: the cost of a single unplanned production stoppage — lost throughput, emergency labor, expedited logistics — routinely exceeds the cost of maintaining a strategic spare parts inventory by a factor of ten or more. Automotive and heavy manufacturing facilities that have already absorbed the engineering cost of programming and validating their DX100 robot cells have a strong financial incentive to protect that investment rather than trigger a forced migration to newer platforms ahead of schedule.

Extending the operational life of a DX100 robot cell by five to ten years through targeted spare parts procurement is a defensible capital allocation strategy. The key components to prioritize are servo amplifier boards (including the SRDA-EAXA01A), the JANCD-series CPU and I/O boards, and the teach pendant cable assembly. A facility that holds one spare of each critical board can absorb most failure scenarios without production impact. DriveKNMS specializes in locating and verifying exactly these components from decommissioned systems and controlled surplus channels.

Condition & Reliability Assurance

Discontinued servo amplifier boards present specific aging failure modes that differ from new-production components. Our 5-step QA process addresses the failure patterns most commonly observed in DX100-era hardware:

• Step 1 – Electrolytic Capacitor Inspection: Capacitors on boards of this generation are the primary aging failure point. Each unit is inspected for bulging, leakage, and ESR deviation. Boards with degraded capacitors are either recapped or rejected.
• Step 2 – Firmware Version Verification: The SRDA-EAXA01A firmware version must match the DX100 system software revision. We verify and document the firmware version on each unit before shipment.
• Step 3 – Pin and Connector Corrosion Check: Connector pins, edge connectors, and board traces are inspected under magnification for oxidation, corrosion, and mechanical damage from prior installation.
• Step 4 – Functional Bench Test: Where test fixtures are available, boards are powered and tested for basic servo communication response before dispatch.
• Step 5 – Packaging for Long-Term Storage: Units are packed in anti-static bags with desiccant and sealed for protection during transit and storage.

Key Features for System Maintenance

• Drop-in Replacement: The SRDA-EAXA01A installs directly into the DX100 controller cabinet without mechanical modification.
• No Reprogramming Required: Robot job files, I/O mappings, and safety parameters stored in the DX100 CPU are unaffected by a servo board swap. Maintenance personnel can restore the cell to production without engineering involvement in most cases.
• Avoids Engineering Reconstruction Costs: A forced migration from DX100 to a current controller platform requires full job retranslation, safety circuit re-validation, and often mechanical modifications to the robot cable harness. Maintaining the existing platform with spare boards eliminates this cost entirely for the remaining service life of the cell.
• Strategic Inventory Value: As DX100 systems age further, the availability of SRDA-EAXA01A boards on the secondary market will continue to decline. Units secured now represent a depreciating-cost insurance policy against future production risk.

FAQ

Q: What warranty applies to a discontinued servo amplifier board?
A: DriveKNMS provides a 90-day functional warranty on all tested units. The warranty covers failure under normal operating conditions and excludes damage from incorrect installation or electrical overstress.

Q: How do I know the unit is genuine and not counterfeit?
A: All units are sourced from decommissioned OEM systems or verified surplus channels. We do not source from unverified brokers. Traceability documentation is available on request.

Q: Should I buy more than one unit?
A: For facilities operating more than two DX100 robot cells, holding a minimum of two SRDA-EAXA01A boards is a standard risk mitigation practice. The cost of a second spare is negligible relative to the cost of a single unplanned stoppage while waiting for sourcing.

Q: Can DriveKNMS source other DX100 internal boards?
A: Yes. Contact us with your full part number list. We maintain sourcing networks for JANCD-series boards, teach pendant units, and other DX100 cabinet components.