WOODWARD PCI4000 Digital Speed Governor Controller Module

In stock

Woodward PCI4000 is a 505E digital governor for single-extraction and admission steam turbines. Provides speed and extraction/admission pressure control with start, stop, and protection algorithms for turbines and turboexpanders driving generators, compressors, pumps, and fans. Dual redundant 24 V DC power, Modbus RTU on RS-232/422/485. USA-made.

WOODWARD PCI4000 Digital Speed Governor Controller Module

🔨The Woodward PCI4000 is a 505E Digital Governor for single-extraction and/or admission steam turbines. It provides speed and extraction-pressure control with dedicated start, stop, control, and protection algorithms for steam turbines or turboexpanders driving generators, compressors, pumps, and industrial fans. Its PID-based control structure manages critical steam-plant parameters such as turbine speed and extraction/admission pressure, making it a standard control and spare module for installed Woodward 505E governor systems.

🔶Key Specifications

Manufacturer: Woodward
Model / Part Number:PCI4000
Product Type: Digital turbine governor / control module
Control Function: Start, stop, speed control, extraction/admission pressure control, and turbine protection
Applicable Turbines: Single-extraction and/or admission steam turbines and turboexpanders (driving generators, compressors, pumps, fans)
Power Supply: 24 V DC nominal (dual redundant, 18–32 V DC range)
Communication: Modbus RTU over RS-232 / RS-422 / RS-485 (dual ports)
I/O: Multi-channel analog inputs/outputs, digital I/O, and relay outputs per 505E configuration

🔶Key Features

Extraction/Admission Control: Dedicated algorithms control both turbine speed and extraction/admission steam pressure with a unique PID structure.
Single-Range Control Versatility: Suited to steam turbines and turboexpanders of various sizes driving generators, compressors, pumps, and fans.
Integrated Start/Stop Sequence: Handles hot and cold starts and coordinated shutdown sequences.
Redundant Power Input: Dual-redundant 24 V DC power for increased availability.
Field Communications: Modbus RTU on dual serial ports enables remote set-point adjustment, configuration, and monitoring.