Product Description
Woodward 9905-966 is a digital gas turbine controller of the MicroNet series, a high-reliability prime mover control unit manufactured by Woodward. This model is end-of-life and supplied mainly as spare replacement for legacy turbine units. It integrates speed regulation, load control, startup sequencing, exhaust gas temperature monitoring, anti-surge protection and overspeed protection. Equipped with a 2-line LCD and keypad, it supports Modbus, RS232 / RS422 communication, multi-channel analog & discrete I/O and dual actuator drive outputs. It can run stand-alone or in redundant configuration, widely used for retrofitting old gas turbine power stations.
Specifications
- Model: 9905-966
- Series: MicroNet Turbine Controller
- Power Supply: 24 V DC, approx. 1 A
- HMI: 2-line × 24-character LCD with function keypad
- Discrete Outputs: 8
- Analog Outputs: 6
- Actuator Outputs: 2
- Communication: RS232, RS422, Modbus
- Operating Temperature: -20 ℃ ~ +60 ℃
- Storage Temperature: -40 ℃ ~ +85 ℃
- Humidity: 10–95% RH, non-condensing
- Dimension: 35.6 × 27.9 × 10.2 cm
- Weight: Approx. 4.13 kg
- Lifecycle: EOL, spare part only
Application
Industrial gas turbines, gas turbine generator sets, offshore power units, CHP plants, mechanical-drive gas turbines for compressors. It performs turbine startup sequence, closed-loop speed control, active load sharing, exhaust temperature limiting, anti-surge and overspeed trip protection. It communicates with DCS to transmit unit status, alarms and process values, acting as the main CPU of MicroNet control system.
Series Models
- 9905-967: MicroNet base controller
- 9905-968: High I/O variant
- 9905-969: Peak150 turbine controller
- 9905-756: ProTech203 overspeed protection unit
- 9907-838: MicroNet expansion I/O module
- 505 / 505E: New generation turbine controller (successor replacement)
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