9905-864

Overview

The Woodward 9905-864 Peak 150 is a digital steam turbine control unit with AC/DC power capability and a NEMA 4X enclosure, designed for precise turbine speed regulation and reliable system monitoring.

Identification

• Manufacturer: Woodward

• Series: Peak 150 Digital Control

• Part Number: 9905-864

Electrical Characteristics

• Power Type: AC/DC

• Enclosure Rating: NEMA 4X

• Analog Input: 4–20 mA or 1–5 VDC remote speed setting signal

• Actual Speed Output: Scalable, 4–20/0–1 mA

• Configurable Readout Output: Scalable, 4–20/0–1 mA

Interface and Indicators

• Front Keypad: 6 switches with LED indicators

• Processor Status: Indicator light for CPU monitoring

• Additional Indicators: Magnetic pickups, overspeed test, remote speed setting signal, shutdown

Control and Performance

• Motor Type: NEMA D for tighter turbine speed control

• Dynamics: Dual speed control

• Safety: Overspeed trip test

• CPU: 16‑bit, 12 MHz microprocessor

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