Product Description
The IS200TDBTH2A is a dedicated TMR triple discrete quantity I/O terminal board for GE Speedtronic Mark VI/VIe/VIeS turbine control systems, which is used in conjunction with the main control card IS220PDIOH1A. It serves as a transfer medium for converting on-site switch signals and control modules, handling on-site limit switches, emergency stops, solenoid valves, and electric valves, among other discrete quantity circuits, to achieve signal isolation, terminal wiring, and backplane bus interconnection. It supports a triple redundant architecture and is a core spare part for power plant gas/steam turbines. The original factory has discontinued it, but there are new stock, refurbished, and disassembled test pieces in the market.
Key technical parameters:
Channel configuration: 24 grouped isolated digital inputs, 12 Form-C relay outputs
Rated signal voltage: DC24V
Single output contact current carrying capacity: Maximum 2A
System architecture: Compatible with TMR triple redundancy, simplex Simplex architecture
Installation method: Control cabinet DIN rail mounting
Board protection:
PCB with three protection coatings
External interfaces: Two sets of green European standard terminal blocks, 3 high-density backplane connectors
Operating temperature: -30℃ ~ +65℃
Storage temperature range: -20℃ ~ +70℃
Environmental humidity: 5% ~ 95% RH, no condensation
Dimensions: 330mm×180mm×30mm
Net weight: Approximately 0.6kg
Insulation method: Input grouped photoelectric isolation, output relay isolation
Product performance:
Triple redundancy hardware matching, single-channel failure does not affect the control logic of the entire unit, meeting the high safety operation requirements of power plants;
Input circuits are grouped isolated to avoid damage to the module caused by on-site short circuits and interference;
Relay has passive contact outputs, which can directly drive on-site solenoid valves and electric actuators;
Full board three protection coating, suitable for long-term continuous operation of the control room in power plants with high temperature and humidity;
Standardized terminal layout, input/output are distinguished, mechanical positioning design for error-free insertion;
Real-time loop status feedback to the main control, capable of diagnosing and reporting faults such as open circuits and short circuits. Application fields
Thermal power / thermal power gas turbine, steam turbine speed control and protection control system
Combined cycle power generation unit Mark VIe safety logic cabinet
Turbo-generator control for oil and gas pipeline compressor stations
Large industrial drive steam turbine auxiliary equipment sequential control (pumps, fans, isolation valves, ESD emergency shutdown circuit)
Model of the same series terminal base plate (Mark VIe discrete quantity I/O base plate)
IS200TDBSH2A: Reduced version discrete terminal board, with fewer channels and not directly interchangeable
IS200TDBTH1A: Initial TMR digital I/O base plate, with outdated hardware version
IS200TDBTH2ACC: Coated reinforced derivative model
IS200TBSIH1A: Special base plate for simplex single-channel digital input
IS200TBSOH1A: Special base plate for simplex single-channel digital output
There are no reviews yet.