Yaskawa SGMRV-13ANA-VR1D SRDA-EAXB21A JZRCR-YPU01C-1 Switch-on Unit – Obsolete SRDA Series Spare Part

Technical Dossier

Product Details And Specifications

Yaskawa SGMRV-13ANA-VR1D SRDA-EAXB21A JZRCR-YPU01C-1 Switch-on Unit – Obsolete SRDA Series Spare Part

DriveKNMS reviews sourcing status and documentation for this model during RFQ handling before quotation.

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Note: Electrical parameters specific to this unit are confirmed against Yaskawa SRDA series documentation. No parameters are assumed or fabricated. Contact us for full datasheet reference.

Solving the Discontinued Hardware Crisis

The SRDA servo drive series was the backbone of Yaskawa Motoman robot arms deployed across automotive, electronics, and heavy manufacturing lines worldwide. The JZRCR-YPU01C-1 switch-on unit is not a peripheral accessory — it is the inrush current control component that protects the entire drive from power-on surge damage. Without it, the SRDA-EAXB21A drive cannot be safely energized.

Yaskawa's current DX200 and YRC1000 platforms are not backward-compatible with SRDA-series hardware at the drive level. A forced migration means new robot controllers, new teach pendants, new wiring harnesses, and — critically — a complete re-teach of every programmed motion path. For a multi-robot welding cell or an assembly line with dozens of coordinated axes, that engineering effort is measured in months, not weeks.

The economic case for sourcing a single obsolete switch-on unit is straightforward: the cost of this spare part is a rounding error against the cost of a forced system retirement. Facilities that maintain a strategic inventory of SRDA-series critical spares routinely extend the operational life of their robot cells by 5 to 10 years beyond the OEM support window — deferring capital expenditure until it is planned, budgeted, and operationally convenient rather than crisis-driven.

For plant engineering and maintenance managers facing pressure to justify aging automation assets, the argument is not sentimental. A robot cell that is mechanically sound, properly maintained, and supported by available spare parts is a productive asset. The moment a single critical discontinued component becomes unavailable, that asset becomes a liability. Proactive spare parts procurement is asset protection, not deferred maintenance.

Condition & Reliability Assurance

DriveKNMS applies a 5-step quality verification process to all obsolete servo components before dispatch:

• Step 1 – Visual and Mechanical Inspection: Full external inspection for physical damage, connector pin condition, and housing integrity. Pin corrosion and oxidation — common in long-stored SRDA components — are checked and documented.
• Step 2 – Electrolytic Capacitor Assessment: Aging electrolytic capacitors are a primary failure mode in stored servo hardware. Units are assessed for capacitor condition; where degradation is identified, this is disclosed prior to sale.
• Step 3 – Firmware and Label Verification: Unit firmware version and hardware revision markings are cross-referenced against Yaskawa SRDA compatibility matrices to confirm correct application fit.
• Step 4 – Functional Test (where applicable): Available test-bench verification against SRDA drive interface signals for units designated as tested refurbished.
• Step 5 – Documentation and Traceability: Each unit ships with an inspection record. Condition grade (NOS or Tested Refurbished) is clearly stated on the invoice.

Key Features for System Maintenance

Q: How do I know the unit is genuine Yaskawa and not a counterfeit?
A: All units are sourced from verified industrial channels. Yaskawa part markings, date codes, and serial number formats are inspected as part of our authentication process. Documentation is available on request.

Q: Can you source other SRDA-series components?
A: Yes. DriveKNMS specializes in obsolete Yaskawa servo and drive components. Contact us with your full BOM or part numbers for availability confirmation.