Description
The Woodward 9907-135 is a MicroNet TDI driver module manufactured by Woodward, a specialist in energy control and optimization solutions. It functions as an input/output interface component within Woodward MicroNet TDI turbine control systems, handling signal conditioning and driving duties for connected control loops.
The 9907-135 is designed to support the reliable exchange of control signals between the MicroNet TDI processor and field devices such as actuators, solenoids, relays, and sensors. Its role is to ensure that commands generated by the control system are accurately transmitted and that feedback signals are properly conditioned for processing.
Application Scenarios
In a combined-cycle power plant, operators were upgrading the control architecture of a gas turbine to improve response time and diagnostic capability. The existing system used a mix of older analog driver cards that made troubleshooting difficult during transient load changes. By integrating the Woodward 9907-135 driver module into the MicroNet TDI rack, the plant standardized its I/O interface layer and gained clearer signal-path diagnostics.
The real benefit became apparent during a hot restart. As the turbine accelerated through its critical speed range, the control system demanded precise actuator positioning. The 9907-135 delivered clean, well-conditioned drive signals that allowed the turbine control logic to maintain stable fuel and speed control. Maintenance technicians also reported that identifying a faulty output loop took minutes instead of hours, because the driver module’s diagnostics isolated the problem to a specific signal path.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 9907-135 |
| Manufacturer | Woodward |
| Product Category | MicroNet TDI driver module / I/O interface module |
| System Compatibility | Woodward MicroNet TDI turbine control systems |
| Core Function | Signal conditioning and output driving for control loops |
| Signal Type | Analog and discrete I/O interfacing |
| Mounting Method | MicroNet TDI rack-mount module |
| Interface | Compatible with MicroNet TDI backplane and I/O bus |
| Diagnostic Support | Module-level fault identification and signal-path monitoring |
| Operating Use | Continuous turbine and compressor control duty |
| Environmental Adaptability | Designed for industrial control-room and enclosure environments |
| Serviceability | Modular form factor for field replacement |
