Product Description
Woodward 9905-860 Peak 150 Digital Control
- Manufacturer: Woodward
- Model/Part Number: 9905-860
- Description: Peak 150 Digital Control, 24 VDC, Modbus Communication, NEMA 4 Enclosure, for Single-Valve/Single-Valve Rack API611 Steam Turbines
Overview
- The Woodward 9905-860 is a Peak 150 digital control unit designed for small single-valve or single-valve rack industrial steam turbines compliant with API611 standards. It provides cost-effective, microprocessor-based control for starting, stopping, controlling, and protecting steam turbines or turboexpanders driving compressors, pumps, or industrial fans. The unit is suitable for industrial, marine, and power generation applications.
Technical Specifications
| Specification | Details |
|---|---|
| Model | 9905-860 |
| Series | Peak 150 |
| Type | Digital control for steam turbines |
| Power Supply | 18–32 VDC, approximately 5 W nominal |
| Communication | Modbus RTU (RS-232 or RS-485) |
| Enclosure | NEMA 4 (dust and water-resistant) |
| Speed Inputs | 2 Magnetic Pickup Units (MPUs), 1–15 Vrms, 200 Hz–15 kHz |
| Display | 5-digit LED-lit speed display |
| Status Indicators | 6 LED indicators (overspeed test, CPU, shutdown, etc.) |
| Controls | 6 keypad switches (speed adjust, start, emergency trip, alarm reset) |
| Analog Outputs | 1 channel, 4–20 mA (configurable for speed, setpoint, or load) |
| Discrete Inputs | 8 channels, dry contact or 24 VDC |
| Relay Outputs | 4 channels, Form C, 5 A at 250 VAC |
| Operating Temperature | -25°C to +65°C (-13°F to +149°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Relative Humidity | 5% to 95%, non-condensing |
| Vibration | 5 G, 10–500 Hz |
| Shock | 30 G peak |
| Dimensions | Approximately 305 mm x 254 mm x 102 mm (12 in x 10 in x 4 in) |
| Weight | Approximately 3.5 kg (7.7 lbs) |
| Mounting | Panel or wall mount |
| Certifications | CE, UL/cUL (pending for some regions), API611 compliant |
| System Compatibility | Single-valve steam turbines, Woodward actuators, Hand-Held Programmer (9905-292) |