Woodward 8440-2167 SPM-D1010B/YB | Synchronizer Controller

Description

• Brand: Woodward
• Full Model Number: SPM-D10/YB / 8440-2167; Woodward legacy records identify the detailed model as SPM-D1010B/YB
• Lifecycle Status: Obsolete / Legacy — LTB ended April 30, 2016
• Core Function: Microprocessor-based synchronizer for automatic generator synchronization
• Top 3 Technical Specs: 1-phase AC application | 100 VAC voltage sensing | 24 VDC control supply
• Stock & Condition: New Surplus / Tested Refurbished subject to physical inventory confirmation | Emergency dispatch subject to QC and carrier cutoff

Module 3: Obsolescence & Supply Chain Deep Dive

A failed Woodward 8440-2167 can stop automatic synchronization on a legacy generator set even when the governor, AVR, and generator remain operational. Woodward’s legacy cross-reference identifies 8440-2167 as SPM-D1010B/YB and shows that the product reached last-time-buy status on April 30, 2016. The documented replacement path is the SPM-D2-1010B/YB, so this is a genuine lifecycle-management issue rather than a normal replenishment item. Current product records describe the 8440-2167 configuration as a microprocessor-based synchronizer for single-phase, 100 V applications with 24 VDC control power, performing automatic frequency, phase, and voltage matching.

For TCO, a verified 8440-2167 preserves the existing synchronizer interface, generator control arrangement, panel wiring, and commissioning documentation. That can be materially less expensive than converting the installation immediately to a newer synchronizer, particularly where the legacy controller is integrated into an established genset control scheme. Woodward itself maintains a legacy product database and a separate replacement path for obsolete controls, confirming that replacement engineering should be based on the exact nameplate part number and revision. —Factory-new legacy stock may be difficult to replenish; verified surplus inventory can therefore have a direct outage-avoidance value.

Module 4: Compatibility & Replacement Matrix (Crucial for Buyers)

Field Traps — Watch Out

Model-name ambiguity: The user-supplied designation SPM-D10/YB is commonly associated with the detailed Woodward legacy identifier SPM-D1010B/YB, P/N 8440-2167. Woodward’s own legacy replacement directory gives that exact mapping. Procurement should use the 8440-2167 nameplate as the controlling identifier rather than relying on the abbreviated model description.

Electrical application mismatch: The 8440-2167 configuration is documented as a 1-phase, 100 VAC, 24 VDC synchronizer. A different SPM-D variant can look similar while having a different voltage-sensing or generator configuration.

Woodward 8440-2167 SPM-D1010B/YB

Module 5: Quality Assurance & Testing SOP

A synchronizer should be treated as a control-system component. The test should demonstrate correct frequency, phase, and voltage matching rather than merely proving that the display powers up.

• OEM anti-counterfeit visual inspection: Verify Woodward markings, complete part number, serial/date information where present, enclosure, keypad/display, terminals, labels, and manufacturing details.
• Part-number verification: Confirm 8440-2167 and record the detailed SPM-D1010B/YB designation from the nameplate.
• Revision/configuration recording: Capture hardware revision, serial number, date code, and available configuration information.
• Physical inspection: Check terminals, connectors, display, buttons, PCB condition, mounting hardware, and evidence of corrosion, impact, overheating, or unauthorized repair.
• ESD-controlled handling: Protect the electronic assembly during inspection and test; Woodward specifically warns that electronic controls contain static-sensitive components.
• 24 VDC supply test: Apply controlled DC power and verify normal startup behavior.
• Voltage-sensing test: Apply the appropriate simulated single-phase AC reference and verify correct measurement.
• Frequency test: Simulate generator and bus frequencies and confirm measurement accuracy and stable display.
• Phase-angle test: Exercise controlled phase differences and verify the synchronizer recognizes the configured window.
• Voltage-matching test: Verify the controller responds correctly to voltage mismatch and produces the expected control bias/output.
• Frequency-matching test: Verify raise/lower frequency control behavior using the appropriate simulator.
• Synchronization-window test: Confirm the unit permits synchronization only when the programmed voltage, frequency, and phase conditions are satisfied.
• Breaker command test: Verify the configured synchronization or breaker-close output using an isolated test interface.
• Input/output test: Check discrete and analog inputs/outputs relevant to the installed configuration.
• Parameter retention test: Power-cycle the unit and verify configured parameters are retained correctly.
• Final QC: Record part number, revision, simulated voltage/frequency/phase values, output tests, photographs, inspector approval, and packaging status.

Woodward describes the SPM-D10 family as a microprocessor-based synchronizer that can perform automatic frequency, phase, and voltage matching using analog or discrete bias signals.

Module 6: Procurement & Lifecycle FAQ

Q1. Is Woodward 8440-2167 genuinely in stock, and what is the cutoff for emergency shipping?
A1. Specialist inventory records currently list 8440-2167 for sale, including new and refurbished condition categories in at least one current listing. Actual warehouse quantity and emergency-dispatch readiness should still be confirmed against the physical unit. Shipping cutoff depends on order receipt, payment clearance, QC completion, packing, and carrier pickup.

Q2. How do you verify the condition and authenticity of an obsolete or surplus 8440-2167?
A2. Require exact nameplate verification, Woodward identification inspection, hardware-revision recording, terminal and PCB examination, controlled 24 VDC power testing, AC sensing tests, frequency/phase simulation, synchronization-window verification, and documented QC results.

Q3. Are there any firmware or configuration compatibility issues engineers should check before issuing the PO?
A3. Yes. The important checks are the SPM-D1010B/YB configuration, 1-phase/100 VAC application, 24 VDC control supply, sensing arrangement, bias outputs, and synchronization parameters. For a migration to SPM-D2-1010B/YB, Woodward provides a separate replacement path, so configuration and installation procedures should be reviewed rather than assuming an identical exchange.

Q4. What is the correct replacement for Woodward 8440-2167?
A4. Woodward’s legacy replacement directory identifies 8440-2167 / /YB and specifies SPM-D2-1010B/YB as the replacement. That is a lifecycle replacement path, not evidence that the newer unit can be installed without configuration and installation review.

Q5. What warranty and return protection should procurement require?
A5. The quotation should state warranty duration, DOA coverage, functional-failure coverage, return authorization, inspection period, and return-freight responsibility. For this obsolete synchronizer, require written confirmation of the exact 8440-2167 part number, detailed model designation, hardware revision, condition, test status, and included accessories before shipment.