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Peak 150 Digital Control for Steam Turbines — family-level record; manual 85565 rev E covers versions 9905-857 (24 Vdc, NEMA 4), 9905-858 (ac/dc, NEMA 4), 9905-860 (24 Vdc w/Modbus, NEMA 4), 9905-861 (ac/dc w/Modbus, NEMA 4), 9905-863 (24 Vdc, NEMA 4X), 9905-864 (ac/dc, NEMA 4X), 9905-866 (24 Vdc w/Modbus, NEMA 4X), 9905-867 (ac/dc w/Modbus, NEMA 4X) · Peak 150
Superseded
Superseded by a newer part number — the original remains supported. See the current replacement path below.
Ask Drake about repair / overhaul of your existing unit.
Drake-recommended replacement
Platform / system upgrade. Contact Drake for an upgrade to your existing controls.
| Preferred item | Description | Applies when |
|---|---|---|
| Peak200 | Peak200 Digital Control for Steam Turbines (Woodward product specification 03438) | Family-level successor only: the Peak200 spec states same form-fit-function as the previous Peak150 controller, but neither document publishes a Peak150-PN to Peak200-PN mapping, so the specific replacement unit (voltage / Modbus / mount variant) must be selected per application |
Note: The Peak 150 manual itself (85565 rev E, Installation and Operation Manual) contains NO obsolescence, discontinuation, LTB, or supersession statement anywhere in its 132 pages; its only 'replacement' text is the repair/exchange service program and replacement-parts ordering instructions (excluded service content). The succession tie comes solely from the Peak200 spec's feature bullet identifying Peak150 as the 'previous' controller with same form-fit-function. No dates (last order / LTB / last ship / support end) appear in either document; the authoritative per-PN obsolescence declaration would be a Woodward PCN, not these docs. The Peak 150 hand-held programmer 9905-292 (85565 p.11) is not covered by any supersession statement and is not recorded. Confidence medium because 'previous … same form-fit-function' is successor positioning, not a formal obsolescence declaration.
Lifecycle facts
| Woodward part number | Peak 150 |
|---|---|
| Lifecycle status | Superseded |
| Source | Product Specification 03438 (Revision D, 8/2023) — Peak200 Digital Control for Steam Turbines p.1 |
| Cross-reference confidence | Confirmed from the cited Woodward publication |
Source: PCN 03438, Rev D
✓ Sourced directly from the cited Woodward publication — Drake confirms the exact part before quoting
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