Description
GE DS200TCQCG1AJD
Model: DS200TCQCG1AJDBrand & Origin: GE General Electric
Product ProfileThis dedicated analog input/output expansion board / RST overflow control board is designed exclusively for the GE Mark V gas turbine control system, serving as a core I/O expansion component of the turbine main control system. It mainly undertakes tasks including analog signal acquisition (temperature, pressure, rotating speed, valve opening, etc.) of turbine units, arithmetic overflow verification and PWM control signal output. As an authentic critical spare part for signal interaction and precise regulation of thermal power combined-cycle gas turbine units and industrial gas turbine control systems, it is widely used for aged board replacement, equipment technical renovation and system redundant upgrade of gas turbine systems.
Hardware ArchitectureIt adopts an integrated industrial control board design, equipped with high-precision AD/DA conversion units, signal conditioning circuits, arithmetic overflow detection circuits, PWM waveform generation units, jumper configuration arrays and multi-channel interface terminals. The PCB is coated with military-grade triple-protection conformal coating and laid out with separated isolation for strong and weak current circuits. Integrated multi-channel signal preprocessing and fault identification circuits deliver strong anti-interference performance and high sampling accuracy, adapting to harsh operating conditions of high temperature and intense electromagnetic interference inside gas turbine cabinets.
Mounting SpecificationDesigned for embedded slot installation on the standard rack of GE Mark V gas turbine control systems. Equipped with multiple sets of standard industrial connectors and original factory jumper configuration structure, it features firm mounting positions, neat wiring and stable contact, suitable for long-term continuous sealed operation inside gas turbine control cabinets.
Compatible SystemsExclusively compatible with the full range of GE Mark V gas turbine control racks. It coordinates with turbine main control CPU boards, speed detection boards, valve control boards and protection logic boards to complete on-site analog signal collection, data arithmetic verification and control command output, supporting the operation of full-set turbine logic for speed regulation, temperature control, valve control and interlock protection.
Product CharacteristicsStandardized original hardware layout with precisely calibrated channel parameters before delivery, supporting customized jumper configuration to adapt to various working conditions. It features system arithmetic overflow fault monitoring and abnormal signal identification capabilities, matching high-precision control logic of gas turbines. Complying with Class A operation standards for heavy-duty power station gas turbine equipment, it supports 24/7 uninterrupted high-load operation.
II. Technical Specifications
1. Channel & Signal Parameters
Analog Input Channels: 8 high-precision analog acquisition channels with standard input voltage range of -10V ~ +10V, compatible with industrial analog signals such as gas turbine temperature, pressure, displacement and valve position.Analog Output Channels: 4 standard analog output channels with output voltage range of 0V ~ 5V, supporting precise voltage regulation and closed-loop valve position control.Equipped with 12-bit AD/DA conversion resolution and a signal sampling rate up to 100ksps, it achieves high conversion accuracy without signal drift, meeting the requirements of dynamic precise regulation for gas turbines.
2. Control Output Parameters
Built-in dedicated PWM waveform generation circuit supports high-frequency pulse width modulation control for gas turbine valves and actuators, delivering stable output timing and regular waveforms that precisely match the dynamic load regulation logic of gas turbines.24 groups of configuration jumpers are onboard, enabling hardware configuration to adapt to different unit parameters and control modes with extremely high flexibility for various working conditions.
3. Interface Configuration Parameters
Integrated multiple groups of industrial high-density connectors, including 3 sets of 34-pin connectors, multiple 40-pin expansion interfaces and 1 set of 16-pin JC functional interfaces. It meets the demands of centralized multi-channel signal access, system bus interaction and expansion module connection, offering strong interface compatibility fully consistent with the original wiring specifications of Mark V racks.
4. Electrical & Protection Parameters
Standard onboard 5VDC industrial power supply with low power consumption and stable heat generation. Built-in signal overload protection, short-circuit protection, overvoltage clamping protection and arithmetic overflow fault latching mechanism can shield abnormal signals and lock fault status in real time, preventing abnormal signals from interfering with main control logic and protecting stable operation of the gas turbine control system. With power-grade EMC electromagnetic compatibility protection, it can withstand high-frequency electromagnetic interference and voltage pulse crosstalk inside gas turbine cabinets.
5. Environmental Operating Parameters
Operating Temperature: -20℃ ~ +70℃Storage Temperature: -40℃ ~ +85℃Operating Humidity: 5%~95% RH, non-condensingIt withstands harsh working conditions including high-temperature radiation, equipment vibration, dust, humidity and intense electromagnetic interference in gas turbine workshops, supporting year-round uninterrupted high-load continuous operation of units.
III. Key Features
1. High-Precision Analog Signal Acquisition & Closed-Loop Control
Relying on 12-bit high-resolution conversion chips and high-speed sampling circuits, it accurately collects various process analog parameters of gas turbines and converts them into standard digital signals for upload to the main control system in real time. Meanwhile, it outputs precise analog control voltage and PWM signals to realize closed-loop speed and voltage regulation control of gas turbine intake valves and actuators, ensuring stable turbine load adjustment and compliance with steady-state parameter accuracy standards.
2. RST Arithmetic Overflow Fault Monitoring
Built-in gas turbine control arithmetic overflow detection function monitors abnormalities such as system logic operation over-limit, data overflow and signal over-range in real time. It automatically latches faults and shields error data to avoid misregulation and turbine trip faults caused by arithmetic abnormalities of the main control system, greatly improving fault tolerance and operational safety of the gas turbine control system.
3. Flexible Hardware Configuration for Multiple Working Conditions
24 groups of configurable jumpers onboard support multi-mode hardware setup. Channel parameters and operating modes can be customized according to different gas turbine models, load ranges and control logic, adapting to various unit working conditions without program modification, delivering excellent universality and adaptability.
4. Full-Range Signal Protection & Anti-Interference Design
Adopting multi-layer protection design including strong/weak current isolation, signal filtering, overvoltage clamping and short-circuit self-locking, it effectively filters high-frequency electromagnetic interference, signal clutter and instantaneous voltage fluctuations on gas turbine sites, eliminating turbine parameter fluctuation and inaccurate regulation caused by signal distortion and data drift, and adapting to complex industrial electromagnetic environments.
5. Commissioning-Free Drop-In Replacement for Convenient Maintenance
Standardized original board design with hardware parameters, interface definitions and jumper logic fully matching the GE Mark V gas turbine system. Aged faulty boards can be directly pulled out and replaced on site. Only simple configuration verification is required without system program rewriting and in-depth commissioning, drastically shortening unit maintenance downtime and suitable for on-site emergency repair and system technical renovation.
After power-on and initialization of the module, 8 analog input channels collect real-time analog signals including temperature, pressure, valve position and rotating speed from the gas turbine site. After onboard filtering, isolation, waveform shaping and amplification conditioning, the signals are converted into standard digital signals via high-precision AD conversion and transmitted to the Mark V main control CPU for logic operation and load regulation calculation.
After the main control system issues regulation commands, the module outputs standard analog voltage signals and pulse width modulation signals through DA conversion circuits and PWM waveform generation units to drive gas turbine actuators and regulating valves to perform precise actions, realizing closed-loop regulation of unit load, temperature and rotating speed. During full-cycle operation, signal range, arithmetic data and circuit operating conditions are monitored in real time. Once faults such as signal out-of-tolerance, arithmetic overflow, circuit overload and voltage abnormality are detected, output is immediately latched and abnormal data is shielded. Fault codes and alarm information are uploaded simultaneously to link with system interlock protection, preventing misoperation and turbine trip accidents and ensuring safe and stable operation of the unit.
- Heavy-Duty Gas Turbine Control Systems: Exclusively matched with GE Mark V gas turbine control racks for analog signal acquisition, valve regulation and arithmetic fault monitoring of thermal power gas turbines and combined-cycle units, guaranteeing precise stable control and smooth load adjustment of gas turbines.
- Power Generation Energy Scenarios: Core component for main control I/O expansion, signal conditioning and closed-loop control of gas turbine units in large thermal power plants, peak-shaving power stations and self-owned power plants, adapting to high-load and uninterrupted unit operating conditions.
- Heavy Industry Power Systems: Automatic control systems for large gas power units in metallurgy, chemical and oil & gas industries, responsible for power parameter collection and precise actuator control under complex harsh industrial conditions.
- Spare Parts for Legacy Gas Turbine Technical Renovation: Genuine original spare parts for replacement of aged faulty I/O boards and overflow detection boards, system upgrade and precision optimization renovation of GE Mark V gas turbine control systems.
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