For several years, CHANGXIN have specialized in trading high-quality components in the field of industrial automation.
Focusing on PLC components, DCS and CNC technology, and drivetechnology
Alstom FV223-M2 diode fault detection module
| Brand: Alstom |
| Item NO: FV223‑M2 |
| Effect: GECOSTAT excitation system diode fault detection module |
| Condition: In stock, brand new/Used |
| Warranty: 365 days |
| Payment:T/T 50% deposit, 50% balance |
| www.szcxdcs.com |
+86 15359298293
Alstom FV223-M2 diode fault detection module
FV223-M2 is a diode fault detection module for Alstom GECOSTAT excitation system, used for monitoring the status of synchronous generator excitation rectifier bridge.
Main function:
- Real time monitoring of the power diode status of the excitation rectifier bridge, detecting diode open circuit and failure faults;
- Identify single or multiple tube faults in the rectifier bridge, output fault alarm signals to the excitation main control and DCS system;
- Onboard status indicator light, providing visual feedback on DIC diode, SIC diode faults, and power status;
- Built in local testing circuit, supporting on-site module self checking, quickly verifying the integrity of module functions;
- After the fault occurs, send out alarm contacts for unit alarm and interlocking prompts to avoid further damage to the rectifier bridge;

We are a trading enterprise specializing in the supply of spare parts for industrial automation control systems, with a long-term focus on manufacturing and energy infrastructure. Relying on a spare parts resource network covering the four core systems of PLC, DCS, robots, and servo drives, we provide customers with the supply of discontinued spare parts, functional modules, control cards, and drive devices, helping them solve the pain points of difficulty in purchasing discontinued parts, long delivery times, and high risks, and ensuring the operation of production lines.
Alstom FV223-M2 diode fault detection module
Core service capability
- Replacement of discontinued parts: Provide original factory compatible or verified replacement solutions for discontinued or obsolete models to reduce system upgrade and renovation costs
- Quick response supply: sufficient inventory of commonly used spare parts, priority response to urgent inquiries, and shortened downtime
- Full chain quality assurance: strict procurement channel management and quality inspection, traceability of key components
- One stop system matching: covering the integrated procurement needs of system level spare parts from control modules to drive devices
Main product range
| Category | Product Details |
|---|---|
| Control Systems (DCS/PLC/CNC) | Panel Controllers, HMI Interfaces, Industrial PCs, CPU Processor Modules, Communication Modules, Analog/Digital I/O Modules |
| Drives & Motion Control | Variable Frequency Drives, Servo Drives, Servo Motors, Power Supply Modules |
| Robot Spare Parts | Robot Control Boards, Axis Computers, Servo Units, I/O Modules and other critical spare parts |
| Condition Monitoring & Safety Systems | Vibration Monitoring Systems, Safety Instrumented Systems (SIS), Redundant Control Systems |
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Alstom FV223-M2 diode fault detection module
Main brand
| No. | Brand | Country/Region | Main Product Lines | Typical Series/Models |
|---|---|---|---|---|
| 1 | ABB | Switzerland | PLC/DCS Controllers, I/O Modules, Robot Spare Parts, Drive Systems | AC800M, AC800F, AC31, 800xA, Bailey INFI 90, DSQC, Advant OCS, H&B Freelance |
| 2 | Bently Nevada | USA | Condition Monitoring Systems, Vibration Sensors, Eddy Current Probes | 3500/3300 Monitoring System, Eddy Current Probes, Proximitors |
| 3 | TRICONEX | USA | Safety Instrumented Systems (SIS), TMR Redundant Controllers | Tricon System Modules, Communication Modules, I/O Modules |
| 4 | Woodward | USA | Steam/Gas Turbine Control, Speed Governing Systems, Actuators | 505 Governor, ProTech, MicroNet, NetCon |
| 5 | FOXBORO | USA | DCS Systems, I/A Series Control Modules | I/A Series, FBM Modules, Controllers |
| 6 | WESTINGHOUSE | USA | DCS Systems, Ovation Controllers & Modules | Ovation System, WDPF Series |
| 7 | Motorola | USA | Industrial Communication Modules, Embedded Control Modules | MVME Series, VME Bus Modules |
| 8 | GE / GE Fanuc | USA | PLC, Excitation System Modules, CPU/Communication/Analog Modules | IS200/DS200, IC693/IC695/IC697/IC698/IC200/IC660/IC670 |
| 9 | YOKOGAWA | Japan | DCS Systems, CPU Modules, I/O Cards | CENTUM CS3000, CS1000, VP Series |
| 10 | HIMA | Germany | Safety Control Systems, SIL Safety Modules | H41q/H51q, HIMax, HIMatrix |
| 11 | EMERSON | USA | DCS Systems, Redundant Controllers, Safety Systems | Ovation, DeltaV Dual-Channel Redundant Safety Systems |
| 12 | Honeywell | USA | DCS Systems, Process Control Modules | Experion PKS/LS/HS, Plant Scape, TDC2000/3000, TPS, Alcont |
| 13 | ICS TRIPLEX | UK | Trusted Safety Control Systems, TMR Modules | Trusted System, T8000 Series |
| 14 | Kollmorgen | USA | Servo Drives, Servo Motors, Motion Control | S700, S300, AKD Series |
| 15 | PROSOFT | USA | Industrial Communication Modules, Protocol Gateways | MVI69, MVI56, MVI94, MVI71, MVI46, PS69, 3150 |
| 16 | Alstom | France | Power Control, Protection Relays, Control Systems | GEC ALSTHOM, Protection and Control Modules |
| 17 | EATON | USA | Electrical Control, PLC, Power Supplies, Circuit Breakers | XC/XN Series PLC, Moeller Series, Power Supply Modules |
| 18 | Allen-Bradley (Rockwell) | USA | PLC Controllers, I/O Modules, Communication Modules | ControlLogix 1756, CompactLogix 1769, SLC 500 1747/1746, PLC-5 1771/1785 |
| 19 | Schneider | France | PLC, Modicon Series, CPU/Communication Modules | Quantum 140, Modicon M340, Modicon Premium |
————————Shenzhen Changxin Automation Equipment Co Ltd -————————
Products that have been released are welcome for consultation. Due to the wide variety of models, we were unable to upload physical images one by one!
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Parameter Specifications
| Item | Specification |
|---|---|
| Model | FV223‑M2 |
| Brand | Alstom(GECOSTAT excitation system) |
| Device type | Exciter Diode Failure Detector Module |
| Power supply | 24 VDC, 18‑30 VDC operating range |
| Monitoring object | Excitation rectifier bridge DIC / SIC diodes |
| Diagnostic indicator | DIC Diode, SIC Diode, Power On LED indicators |
| Test function | Built‑in local test switch for function verification |
| Alarm output | Fault relay contact output |
| Mounting | GECOSTAT rack slot‑mounted |
| Net weight | 2.6 kg |
| Operating temperature | ‑20℃ ~ +60℃ |
| Storage temperature | ‑40℃ ~ +70℃ |
| Humidity | 5‑95% RH non‑condensing |
| Protection class | IP20, cabinet internal installation |
| Certification | CE |
| Status | Obsolete, spare‑part only |












