Description
The part number D201925 specifies an ACN CS Controller / Process Control Module originally manufactured by Valmet (subsequently part of Metso Automation).
Technical Specifications
| Feature | Specification |
| Manufacturer | Valmet / Metso Automation |
| Product Series | ACN CS Controller Series (Metso DNA / Neles Systems) |
| Processor Architecture | 32-bit RISC Processor |
| Memory | 256 KB RAM, 512 KB Flash |
| Operating Voltage | 18 to 36 VDC (Nominal 24 VDC) |
| Power Consumption | ~15 W |
| Communication Interfaces | RS-232, RS-485, Ethernet |
| Operating Temperature | -20°C to +60°C (-4°F to +140°F) |
| Enclosure Protection | IP65 |
Product Overview
The D201925 is a high-performance industrial controller and process module designed for integration into Valmet and Metso automation environments (such as Metso DNA and Neles control systems). It acts as a core processing hub to handle complex automation algorithms, loop controls, and multi-channel data acquisition for industrial plants.
Key Features:
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High-Precision Process Control: Supports advanced loop logic and PID regulation for regulating variables such as pressure, temperature, flow, and level.
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Rugged Industrial Design: Engineered to operate reliably in harsh, demanding industrial environments like pulp and paper mills, energy plants, and chemical processing facilities.
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Flexible Communication: Equipped with standard serial and Ethernet ports to interface smoothly with distributed control systems (DCS) and operator interfaces.
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Modular Compatibility: Designed to seamlessly integrate alongside companion I/O modules, relay units, and data loggers within the ACN CS framework.
D201925
Main Characteristics
✔ Dedicated internal backplane interface for MicroNet rack, stable data interaction with all rack modules
✔ Multiple external communication channels for docking with third-party controllers, HMI and DCS systems
✔ Built-in signal isolation circuit, effectively suppress electromagnetic interference inside turbine control cabinets
✔ Front panel LED indicators intuitively display module running status, communication active and fault alarm
✔ Optimized vibration-resistant mechanical design, adapts to long-term operation on turbine units
✔ PCB conformal coating option improves tolerance to temperature fluctuation, humidity and dust
✔ Standard plug-in rack structure, convenient disassembly and replacement during unit overhaul
✔ Perfect matching with 505, MicroNet Plus series turbine controllers
Typical Application Scenarios
Combined Cycle Power Plant Gas Turbine Control Cabinets
Internal communication coordination for Woodward MicroNet main control racks.
Thermal Power Plant Steam Turbine Governing Control Systems
Data interaction between governor controller and auxiliary monitoring equipment.
Industrial Cogeneration Generator Sets
Communication expansion for gas engine and turbine control systems.
Oil & Gas Compressor Station Prime Mover Control
Signal transmission for turbine-driven compressor governing and protection.
Woodward MicroNet Control System Retrofit & Spare Replacement Projects
Direct replacement for aging communication modules in existing control racks.
