Description
Application Scenarios
A natural gas compression station relies on Woodward NetCon control systems to manage high-speed turbine drivers for pipeline compressors. Field instrumentation—speed pickups, pressure transmitters, and valve position feedback sensors—must connect reliably to the central control processor. Long cable runs from the field to the main cabinet introduce electromagnetic interference and voltage drops that corrupt analog signals and trigger nuisance trips.
The Woodward 5437-672 addresses this challenge by providing a localized termination point within the control cabinet. Field wiring lands securely on the 5437-672‘s 37-pin screw-clamp terminals, where signals are conditioned and routed via a dedicated backplane interface to the NetCon processor . When maintenance requires replacing a sensor or actuator, technicians disconnect at the 5437-672 without disturbing the central control hardware, reducing service time and wiring errors .
In another scenario, a district heating plant uses the 5437-672 for local monitoring of fan speed and airflow. The module’s 24-character LED display provides immediate diagnostics of I/O status directly at the termination point, enabling operators to verify signal integrity without accessing the main control processor .
Parameters
| Main Parameters | Value/Description |
|---|---|
| Product Model | 5437-672 |
| Manufacturer | Woodward |
| Product Category | NetCon Field Terminal Module (FTM) |
| Series | 5400 Series |
| Input Voltage | 24 VDC |
| Operating Frequency | 3 kHz |
| Connector Type | 37-pin screw-clamp terminal |
| Display | 24-character LED |
| Dimensions | 15.9 × 8.9 × 6.3 cm (6.25 × 3.50 × 2.75 in) |
| Weight | 0.25–0.3 kg (0.55 lbs) |
| Button | Emergency Stop |
| Product Status | Discontinued by Manufacturer |
Technical Principles and Innovative Values
Localized Signal Termination: The 5437-672 relocates field wiring connection points from the central processor to a dedicated terminal module, shortening cable runs between sensors and their termination. Shorter runs reduce electromagnetic interference and signal attenuation, improving analog loop integrity .
Integrated Safety Interface: The 5437-672 includes an emergency stop button at the termination point, providing a hardwired safety input directly at the field wiring interface. This localized safety control enables immediate shutdown capability without routing through the central processor .
Backplane Communication Architecture: The 5437-672 connects to the NetCon control processor via a dedicated multi-pin backplane interface. This arrangement maintains deterministic communication with minimal latency, ensuring that signal processing timing remains synchronized with turbine control loops .
Diagnostic LED Display: The 24-character LED display on the 5437-672 provides real-time I/O status and diagnostic feedback directly at the termination module. This capability simplifies troubleshooting by allowing technicians to verify signal presence and module health without external test equipment .
