Description
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 087629-001 (Drawing / Internal Part No.; also referenced as 087629001) |
| Manufacturer | ABB |
| Product Type | Internal PC Board (PCB) for SR511 Redundant Voltage Regulator |
| Host Assembly | ABB SR511 (3BSE000863R1 / 3BSE000863R0001) 24V → 5V Regulator |
| Compatible Platforms | Advant OCS, Advant Master, MasterPiece 200, AC800M controller racks |
| Primary Function | Switching regulation control, signal conditioning, protection & backplane interface |
| Input Voltage (host) | 24 VDC nominal auxiliary (host-module level) |
| Regulated Output (host) | 5 VDC (host-module level) |
| Logic / Onboard Supply | +5 VDC / ±12 VDC / +24 VDC derived from host power (revision-dependent) |
| Mounting | Edge-connector into SR511 chassis backplane; screw / guide-rail fixed per chassis design |
| Board Format (typical) | Eurocard-format PCB, approx. 75 × 230 × 15 mm (exact per ABB drawing) |
| Operating Temperature | 0 °C to +55 °C (industrial grade; host-module specification) |
| Protection Rating | IP20 (board level; installed inside module housing / control cabinet) |
| Status Indication (host) | LED: Power OK (green) / Fault (red) / Redundancy status |
| Certifications | CE / UL (per host SR511 assembly certification) |
Main Features and Advantages
Exact-form-fit replacement: The ABB 087629-001 is manufactured to the original ABB drawing 087629-001, preserving the connector footprint, component layout, and backplane interface of the SR511 host assembly. This ensures a true point-to-point swap—no adapter, no rewiring, and no program or configuration changes required.
Cost-effective repair versus full-module replacement: Because the ABB 087629-001 targets the internal electronics rather than the complete regulator, it directly resolves faults such as degraded logic, failed regulation, or damaged signal-conditioning stages while the mechanically sound SR511 chassis remains in place. This dramatically lowers repair cost and shortens outage time.
Signal integrity and stable regulation: The PCB integrates precision op-amps, reference and feedback networks, EEPROM/Flash configuration memory, filter capacitors, and status LEDs. These circuits maintain tight output tolerance and clean backplane power even as controller logic computation and communication traffic create dynamic load swings.
Robust industrial construction: The ABB 087629-001 uses industrial-grade integrated circuits and components selected for continuous operation in electrically noisy control cabinets. Its IP20 board-level protection, combined with installation inside the module housing, shields sensitive circuitry from dust and incidental contact.
Backward compatibility and legacy-asset support: Fully aligned with the series architecture, the board supports existing redundant power configurations and integrates seamlessly with Advant OCS / AC800M infrastructure. For plants running mature ABB systems, the ABB 087629-001 closes the spare-parts availability gap and helps defer costly system migrations.
Critical procurement note: The ABB 087629-001 is the internal PCB of the power-regulator SR511 (3BSE000863R1). It must not be confused with the separate SR511 / FOCPU fiber-optic communication processor (drawing 087629-001 also appears in that context). Always verify the host module label and the existing board revision/connector orientation before ordering to ensure interchangeability.
Application Field
The ABB 087629-001 is used wherever the redundant regulator forms the power backbone of an ABB controller rack. In power generation and utility applications, it supports AC800M and Advant OCS racks controlling steam and gas turbines, generators, and balance-of-plant equipment—ensuring CPUs, analog and discrete I/O, and communication interfaces receive clean, uninterrupted 5 VDC.
In oil & gas, petrochemical, and refining facilities, the ABB 087629-001 keeps critical process-control and safety-related logic powered within Advant Master and MasterPiece 200 systems. Its role is especially valuable in continuous-process plants, where even a brief power-regulator anomaly can disrupt reactor temperature control, compressor antisurge, or emergency shutdown logic.
Pulp & paper mills running legacy ABB AccuRay / quality-control infrastructure also rely on -family assemblies for stable internal power distribution; here, the ABB 087629-001 provides a targeted repair path when scanner or control electronics exhibit regulator-side faults. The same advantage applies to steel, cement, mining, and discrete manufacturing lines built on ABB Advant OCS platforms.
Across all these sectors, the common value is clear: by replacing only the failed internal PCB, the ABB 087629-001 restores full regulator performance, preserves existing wiring and configuration, minimizes unplanned downtime, and extends the productive life of mission-critical ABB automation assets.
