ABB TEPI1 R1D 1KHW002601R0001 N4BF 1KHW002602R0001 Control Board – Obsolete TEPI1 Series Spare Part

Technical Dossier

Product Details And Specifications

ABB TEPI1 R1D 1KHW002601R0001 N4BF 1KHW002602R0001 Control Board – Obsolete TEPI1 Series Spare Part

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 not listed here are not independently verified. DriveKNMS does not publish unconfirmed specifications. Contact our technical team for application-specific data.

Solving the Discontinued Hardware Crisis

The ABB TEPI1 series was deployed extensively across process industries — pulp and paper, water treatment, mining, and heavy manufacturing — during a period when ABB's drive architecture prioritized modular serviceability. The TEPI1 R1D control board serves as the central processing and interface module within these drive cabinets. It manages firing pulse generation, feedback signal conditioning, and fault diagnostics. There is no direct functional equivalent in ABB's current product lineup that can be retrofitted without significant engineering intervention.

Plant managers operating facilities built around TEPI1-based drive systems face a specific and well-documented problem: ABB's end-of-life policy means that technical support, firmware updates, and spare parts are no longer available through official channels. When the control board fails — due to electrolytic capacitor degradation, thermal cycling fatigue, or power surge damage — the entire drive becomes non-functional. The downstream impact is immediate: production halts, maintenance teams scramble, and procurement teams discover that the part is simply not available through standard industrial distributors.

Condition & Reliability Assurance

DriveKNMS applies a structured 5-step quality assurance process to all obsolete control boards before dispatch review. This protocol is designed specifically for legacy hardware where age-related degradation is the primary failure risk:

• Step 1 – Electrolytic Capacitor Inspection: All electrolytic capacitors are tested for capacitance drift and ESR (equivalent series resistance). Capacitors showing degradation beyond tolerance are flagged. Boards with compromised capacitors are either reconditioned with matched-specification replacements or removed from saleable inventory.
• Step 2 – Firmware Version Verification: Where firmware is embedded in onboard EPROM or flash memory, the version is read and documented. Customers are informed of the firmware revision prior to shipment to confirm compatibility with their existing system configuration.
• Step 3 – Pin and Connector Corrosion Audit: All edge connectors, terminal blocks, and IC socket pins are inspected under magnification for oxidation, corrosion, and mechanical deformation. Affected contacts are treated or the board is quarantined.
• Step 4 – Functional Power-On Test: Where test fixtures are available for the TEPI1 platform, boards are powered and basic functional outputs are verified before packaging.
• Step 5 – Anti-Static Packaging and Documentation: Each board is shipped in ESD-protective packaging with a condition report and part number confirmation document.

Key Features for System Maintenance

• Drop-in replacement: The 1KHW002601R0001 / 1KHW002602R0001 board installs directly into the existing TEPI1 drive cabinet without mechanical modification.
• No reprogramming required: Drive parameters stored in the system's external memory or operator panel are retained. The replacement board does not require re-entry of application-specific settings in standard configurations.
• Avoids engineering reconstruction costs: Replacing this board preserves the existing wiring harness, motor cabling, and control architecture. There is no need to engage a systems integrator for a platform migration project.
• Extends asset service life by 5–10 years: A single spare board, properly stored, provides insurance against the most common failure mode in aging TEPI1 systems — control board failure due to component aging.
• Protects production continuity: Mean time to repair (MTTR) drops from weeks (sourcing a replacement platform) to hours (board swap and restart).

Q: How should we store a spare board for long-term backup?
A: Store in original ESD packaging in a climate-controlled environment (15–25°C, relative humidity below 60%, away from direct sunlight and magnetic fields). Inspect annually for packaging integrity. For long-term storage exceeding 3 years, a pre-installation capacitor check is recommended.

Q: Can you source multiple units for a strategic spare parts program?
A: Yes. DriveKNMS works with plant engineering and procurement teams to structure multi-unit spare parts agreements for critical obsolete components. Contact us to discuss volume availability and pricing.

Q: How do I confirm this board is compatible with my specific TEPI1 drive configuration?
A: Provide your drive cabinet nameplate data and existing board part number to our technical team. We will confirm compatibility before processing your order.