Product Short Description
Product Introduction
The GE DS200TCQCG1AJD is a TCQC (Thermocouple and RTD Conditioning) RST Overflow Board in the Mark V Speedtronic DS200 series, serving as a specialized interface for temperature signal processing and RST (Rotor Speed Tracking) overflow management in turbine control. It integrates precision thermocouple/RTD signal conditioning, cold junction compensation, linearization, and digital filtering circuits, with 16 dedicated temperature input channels and RST overflow handling capabilities. The board uses an 80196 microprocessor, multiple PROM/EPROM modules for firmware storage, and a 50-pin terminal connector (JRR) for field wiring, plus a side-mounted status LED for real-time diagnostics. It mounts in the Mark V C core via the VME P1 connector, featuring 1500 Vrms isolation between field and logic circuits through optoelectronic isolation to eliminate noise and ground loops. It is designated Group 1 with artwork/functional revision AJD, and is supported by the GEH-6153 reference manual, ensuring seamless integration into Mark V architectures for critical turbine temperature monitoring and RST overflow control.
Description
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | GE (General Electric) Mark V Speedtronic DS200 Series |
| Model | DS200TCQCG1AJD |
| Product Type | TCQC (Thermocouple and RTD Conditioning) RST Overflow Board, Group 1, Revision AJD |
| Application | Mark V Speedtronic Gas/Steam Turbine Control Systems |
| Mounting | Mark V C core, full VME slot via VME P1 connector |
| Processor | Intel 80196 microprocessor |
| Firmware Storage | Multiple PROM/EPROM modules |
| Temperature Input Channels | 16 dedicated channels (thermocouple/RTD) |
| Sensor Compatibility | K, J, T, E, N type thermocouples; Pt100 RTDs |
| Signal Conversion | Millivolt/resistance to 12-bit digital values |
| Cold Junction Compensation | Integrated precision CJC circuit |
| Isolation | 1500 Vrms (field-logic circuits, optoelectronic) |
| Connectors | 50-pin terminal connector (JRR) for field wiring |
| Status Indicator | 1 side-mounted LED (power/communication/fault) |
| PCB Coating | Industrial-grade protective coating |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% – 95% RH (non-condensing) |
| Dimensions | Approx. 12.5 × 5.5 × 2.5 inches (317.5 × 139.7 × 63.5 mm) |
| Weight | Approx. 2.9 kg (6.3 lbs) |
| Power Supply | 5 V DC ± 5% (from VME backplane) |
| Data Transfer Rate | Up to 2 MB/s (VMEbus standard) |
| Compliance | IEC 61010-1, IEC 61326-1 |
| Reference Manual | GEH-6153 |
Functional Features
- Dedicated Temperature Conditioning: 16 channels process thermocouple/RTD signals with integrated cold junction compensation, linearization, and digital filtering for accurate temperature measurement.
- RST Overflow Management: Handles rotor speed tracking overflow to prevent data loss during high-speed turbine operations, ensuring continuous monitoring of rotor dynamics.
- Microprocessor-Driven Processing: 80196 microprocessor enables firmware-based signal scaling, calibration, and overflow control for consistent performance.
- Optoelectronic Isolation: 1500 Vrms isolation eliminates noise and ground loops, enhancing signal integrity and system reliability.
- Multi-Sensor Compatibility: Supports K, J, T, E, N type thermocouples and Pt100 RTDs for flexible integration with turbine temperature sensors.
- Firmware Upgradeability: PROM/EPROM modules allow field-upgradeable firmware to adapt to evolving turbine control requirements.
- Status Monitoring: Side-mounted LED provides real-time power, communication, and fault alerts for quick diagnostics and reduced downtime.
- Industrial-Grade Durability: Protective PCB coating resists dust, moisture, and vibration in power generation environments.
- Plug-and-Play Integration: VME backplane compatibility enables hot-swappable replacement without full system shutdown, minimizing operational disruptions.
- High-Precision Conversion: 12-bit resolution ensures accurate temperature data for critical turbine protection and control loops.
- RST Overflow Handling: Manages RST data overflow to maintain rotor speed tracking accuracy during transient turbine conditions.
Functional Features
- Dedicated Temperature Signal Processing: 16 channels with integrated cold junction compensation, linearization, and digital filtering ensure precise thermocouple/RTD signal conversion for turbine temperature monitoring.
- RST Overflow Management: Handles rotor speed tracking data overflow to prevent signal loss and maintain accurate speed measurement during rapid turbine acceleration/deceleration.
- Microprocessor-Driven Control: 80196 microprocessor executes firmware-based signal scaling, calibration, and overflow logic for consistent performance across all channels.
- Optoelectronic Isolation: 1500 Vrms isolation eliminates noise and ground loops, safeguarding signal integrity and operator safety.
- Multi-Sensor Compatibility: Supports K, J, T, E, N type thermocouples and Pt100 RTDs for flexible integration with diverse turbine temperature sensors.
- Firmware Upgradeability: PROM/EPROM modules enable field firmware updates to align with evolving turbine control strategies.
- Real-Time Status Monitoring: Side-mounted LED delivers instant power, communication, and fault alerts for rapid diagnostics and reduced downtime.
- Industrial-Grade Build: Protective PCB coating withstands dust, moisture, and vibration in power generation environments.
- Hot-Swappable Design: VME backplane compatibility allows module replacement without full system shutdown, minimizing operational disruptions.
- 12-Bit Conversion Accuracy: Ensures precise temperature data for critical turbine protection loops (exhaust temperature, bearing temperature, winding temperature).
- Seamless System Integration: JRR connector and VME backplane compatibility enable plug-and-play integration with Mark V C core components.
Application Scenarios
- Gas Turbine Temperature Monitoring: Processes exhaust gas temperature (EGT), bearing temperature, and winding temperature signals for protection and load regulation in Mark V setups.
- Steam Turbine Rotor Speed Tracking: Manages RST overflow to maintain accurate rotor speed measurement during steam turbine start-up and load changes.
- Combined Cycle HRSG Temperature Control: Interfaces with HRSG temperature sensors to optimize heat transfer and steam production in combined-cycle power plants.
- Industrial Turbine Compressors: Handles temperature signals for turbine-driven compressors in petrochemical refineries and natural gas processing plants, withstanding harsh industrial environments.
- Mark V System Retrofits: Replaces legacy TCQC RST overflow boards in existing Mark V installations, preserving I/O compatibility and control precision while supporting firmware upgrades.
- Turbine Commissioning & Calibration: Enables reliable temperature signal processing during parameter calibration and system validation, simplifying setup and reducing commissioning time.
- Grid-Connected Power Plants: Supports turbine load control via accurate temperature feedback, ensuring stable power output and grid synchronization.
- Marine Turbine Propulsion: Integrates with shipboard Mark V systems to manage temperature I/O and RST overflow for propulsion control, ensuring reliable at-sea operations.
- Turbine Safety System Interfacing: Transmits critical temperature signals to ESD systems for safe shutdown during abnormal conditions (overtemperature, overtemperature rate).






Reviews
There are no reviews yet.