Woodward 505E Series 9907-1183 Digital Speed Control Controller
9907-1183 is a WOODWARD 505E series steam turbine digital speed controller. 9907-1183 adopts a 32-bit microprocessor, specifically developed for industrial steam turbines, steam turbine generators, and turbine expanders, supporting control of extraction and replenishment steam turbines.
Woodward 505E Series 9907-1183 Digital Speed Control Controller
Product function
- Speed closed-loop regulation: Receive speed probe signals, control the electro-hydraulic actuator, achieve stable control of turbine speed, and complete speed increase, constant speed, and grid connected operation.
- Load and extraction pressure control: Supports PID closed-loop control of unit load regulation, inlet pressure, and extraction/replenishment pressure, suitable for cogeneration units, and balances power generation and steam supply conditions.
- Unit protection logic: Built in overspeed protection, zero speed detection, shutdown interlock, triggering turbine shutdown protection in case of abnormal conditions to ensure equipment safety.
- Local operation and human-computer interaction: Panel buttons and display screen enable parameter modification, status viewing, fault code reading, and on-site start stop operation.
- External communication interaction: Upload speed, load, alarm and other data to DCS through Modbus communication, and receive remote DCS commands to achieve remote control.
- Analog and switch signal processing: Collect on-site transmitters, interlock contacts, and output relay contacts for alarm, shutdown, and equipment linkage.
Parameter Specifications
| Item | Specification |
|---|---|
| Model | 9907‑1183 |
| Product Type | 505E Turbine Digital Governor |
| Microcontroller | 32‑bit |
| Power Supply | 18‑32 V DC |
| Power Consumption | 22 W typical |
| Speed Measuring Range | 0‑7500 RPM |
| Communication Port | 2 × Serial RS‑232/485, Modbus RTU / ASCII |
| Analog Input | 6 channels 4‑20 mA |
| Analog Output | 2 channels 4‑20 mA |
| Discrete Input | Programmable contact inputs |
| Relay Output | Alarm & Trip relay outputs |
| Operating Temperature | ‑25 °C ~ +65 °C |
| Dimension | 356 × 279 × 102 mm |
| Weight | Approx.1.9 kg |
| Mounting | Panel mount |
| Origin | USA |
Product features
- 32-bit microprocessor architecture, integrating PID and ratio limiter algorithms, supporting multi loop collaborative control of speed, load, and extraction pressure, suitable for multiple turbine configurations including single extraction and replenishment.
- The panel integrates LCD display and operation buttons, supports local start stop, parameter configuration, fault diagnosis, and has password protection to prevent parameter tampering.
- Built in overspeed protection, zero speed detection, integrated shutdown interlock logic, to achieve critical safety protection functions for the unit.
- Two Modbus (RTU/ASCII) serial communication channels facilitate integration with DCS and upper monitoring systems, supporting remote operation and data acquisition.
- Rich IO resources: multiple analog input/output, switch input, relay alarm/trip output, directly connected to on-site sensors and execution components.
- Industrial reinforced panel installation, optional NEMA4X protective shell, suitable for on-site vibration and wide temperature conditions, meeting the requirements of power plants and petrochemical industry environments.
- Supports two working modes: independent mode and DCS linkage mode, which can work seamlessly
Woodward 505E Series 9907-1183 Digital Speed Control Controller
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