IS200SRTDH2A is a high-performance RTD Input Terminal Board within the GE Mark VIe Speedtronic control system, representing an upgraded variant of the IS200SRTDH1A series. This board provides high-accuracy resistance temperature detector (RTD) signal conditioning for turbine control applications with enhanced channel capacity, improved accuracy, and expanded diagnostic capabilities. The IS200SRTDH2A offers direct termination for up to 24 RTD inputs (3-wire or 4-wire Pt100 and Ni120 configurations), with built-in excitation current sources, precision analog-to-digital conversion, and automatic lead-wire compensation. It interfaces directly with the Mark VIe main VME-based controller processors via front-panel I/O cables, delivering digitized temperature data with superior noise immunity and linearization across the full industrial temperature range. Onboard diagnostics include open-circuit detection, short-circuit detection, lead-wire resistance imbalance monitoring, and sensor drift tracking, ensuring reliable temperature measurement for critical turbine bearings, windings, and process monitoring applications.
IS200SRTDH1A is an RTD Input Terminal Board within the GE Mark VIe Speedtronic control system, designed specifically for high-accuracy resistance temperature detector (RTD) signal conditioning in turbine control applications. This board provides direct termination for up to 16 RTD inputs (3-wire or 4-wire Pt100 and Ni120 configurations), with built-in excitation current sources, precision analog-to-digital conversion, and lead-wire compensation. The IS200SRTDH1A interfaces directly with the Mark VIe main VME-based controller processors via front-panel I/O cables, delivering digitized temperature data with excellent noise immunity and linearization across the full industrial temperature range. Onboard diagnostics include open-circuit detection, short-circuit detection, and lead-wire resistance imbalance monitoring, ensuring reliable temperature measurement for critical turbine bearings, windings, and process monitoring applications.
IS200SRLYH2AAA is an advanced Relay Output Board within the GE Mark VIe Speedtronic control system, representing an enhanced variant of the IS200SRLYH2A series. This board provides high-current discrete output switching for turbine control applications with extended diagnostics, higher contact ratings, and enhanced suppression capabilities. The IS200SRLYH2AAA interfaces with field devices such as solenoids, contactors, motor starters, alarms, and trip actuators, delivering reliable control signals from the Mark VIe main processor. It features 16 individually isolated relay outputs with dedicated status feedback, comprehensive fault detection, and redundant coil drivers for mission-critical applications. The board communicates with the GE controller via the VME backplane, allowing the processor to command outputs and monitor relay health in real time. Built-in suppression diodes for inductive loads, diagnostics for coil open/short detection, welded contact detection, and enhanced surge protection make IS200SRLYH2AAA suitable for the most demanding turbine environments.
IS200SRLYH2A is a Relay Output Board within the GE Mark VIe Speedtronic control system, designed to provide high-current discrete output switching for turbine control applications. This board interfaces with field devices such as solenoids, contactors, motor starters, alarms, and trip actuators, delivering reliable control signals from the Mark VIe main processor. The IS200SRLYH2A features 16 individually isolated relay outputs, each with dedicated status feedback and comprehensive fault detection. It communicates with the GE controller via the VME backplane, allowing the processor to command outputs and monitor relay health in real time. The board includes built-in suppression diodes for inductive loads, diagnostics for coil open/short detection, and status LEDs per channel for rapid troubleshooting.
IS200SPROH2ADD is a Processor Board within the GE Mark VIe Speedtronic control system, representing the highest-performance variant in the SPROH2 series. This board serves as the main computing engine for turbine control applications, featuring an advanced PowerPC-based processor with maximum clock speed, expanded memory capacity, enhanced communication interfaces, and dedicated co-processing capabilities. The IS200SPROH2ADD executes turbine protection, sequencing, and regulatory control logic with superior determinism and the fastest scan rates available in the Mark VIe family. It communicates via the VME backplane with I/O termination boards and supports triple-modular redundancy (TMR) configurations for safety-critical applications. Onboard features include maximum memory configuration, dual Gigabit Ethernet ports with advanced network offload, additional serial interfaces, USB 3.0 host port, hardware watchdog timers, and an expanded diagnostic logging subsystem with dedicated storage for comprehensive fail-safe operation and post-event forensic analysis.
IS200SPROH2A is a Processor Board within the GE Mark VIe Speedtronic control system, representing a higher-performance upgrade over the IS200SPROH1A. This board serves as the main computing engine for turbine control applications, featuring a more advanced PowerPC-based processor with enhanced clock speed, increased memory capacity, and additional communication interfaces. It executes turbine protection, sequencing, and regulatory control logic with improved determinism and faster scan rates. The IS200SPROH2A communicates via the VME backplane with I/O termination boards and supports triple-modular redundancy (TMR) configurations for safety-critical applications. Onboard features include expanded memory, dual Ethernet ports with enhanced network capabilities, additional serial interfaces, hardware watchdog timers, and improved diagnostic logging for comprehensive fail-safe operation.
IS200SPROH1A is a Processor Board within the GE Mark VIe Speedtronic control system, designed as the main computing engine for turbine control applications. This board features a PowerPC-based processor with embedded real-time operating system, executing turbine protection, sequencing, and regulatory control logic. It communicates via the VME backplane with I/O termination boards and supports triple-modular redundancy (TMR) configurations for safety-critical applications. The IS200SPROH1A includes onboard memory, communication ports (Ethernet, serial), and hardware watchdog timers for fail-safe operation.
IS200SPIDG1ABA is a Power Distribution Board within the GE Mark VIe Speedtronic control system, designed to distribute and condition DC power to VME-based turbine control modules. This board provides regulated +5V, +12V, -12V, and +24V outputs to multiple backplane slots, with built-in overvoltage, overcurrent, and thermal protection. It includes input filtering, surge suppression, and status monitoring for reliable power delivery to critical GE turbine control components.
IS200SFCBG1AAA is an advanced Fan Control Board within the GE Mark VIe Speedtronic control system, designed for high-reliability cooling fan management in VME-based turbine control cabinets. This board is a variant of the IS200SFCBG1A series, distinguished by its extended operating temperature range (–40°C to +70°C) , enhanced EMI filtering, and redundant tachometer input circuitry for mission-critical cooling applications. The IS200SFCBG1AAA provides intelligent, closed-loop speed control and monitoring for up to four DC brushless fans, incorporating dual-redundant temperature sensing, advanced PWM regulation, tachometer feedback with hardware validation, and comprehensive fault detection. The board interfaces directly with the Mark VIe controller via the VME backplane, enabling the main processor to log fan health, trend degradation, and coordinate cooling strategies based on thermal load data—essential for turbines operating in extreme environments such as arctic stations, desert installations, or offshore platforms.
IS200SFCBG1A is a Fan Control Board within the GE Mark VIe Speedtronic control system, specifically designed for cooling fan management in VME-based turbine control cabinets. This board provides intelligent, closed-loop speed control and monitoring for up to four DC brushless fans used to maintain proper airflow and thermal management within the Mark VIe chassis and enclosure. Unlike simple on/off fan controllers, IS200SFCBG1A incorporates temperature sensing, pulse-width modulation (PWM) speed regulation, tachometer feedback monitoring, and fault detection—ensuring that critical turbine control electronics remain within safe operating temperatures even during ambient temperature extremes. The board interfaces directly with the Mark VIe controller via the VME backplane, allowing the main processor to log fan health, adjust speeds based on thermal load, and generate alarms for fan degradation or failure.
IS200SCTTG1AAA is a Thermocouple Input Terminal Board within the GE Mark VIe Speedtronic control system. It is a variant of the IS200SCTTG1A series, distinguished by its extended temperature calibration and enhanced cold-junction compensation (CJC) accuracy for demanding turbine exhaust temperature monitoring applications. This board provides direct termination for up to 24 thermocouple inputs (types J, K, T, E, R, S, or B) or 12 RTD inputs (3-wire or 4-wire Pt100/Ni120), with factory-optimized linearization tables and dual-redundant CJC sensors. The IS200SCTTG1AAA interfaces with the Mark VIe main VME-based controller processors via front-panel I/O cables, delivering digitized temperature data with superior accuracy across an extended operating temperature range of –40°C to +70°C—making it specifically suited for outdoor or unheated turbine enclosures.
IS200SCTTG1A is a Terminal Board within the GE Mark VIe Speedtronic control system, specifically designed for thermocouple and RTD (Resistance Temperature Detector) input signal conditioning. Unlike the contact-type IS200SCTLG1ABA, this board serves as the analog front-end for temperature sensors in gas and steam turbine applications. It provides direct termination for up to 24 thermocouple inputs (types J, K, T, E, R, S, or B) or 12 RTD inputs (3-wire or 4-wire configurations), with built-in cold-junction compensation (CJC) and high-accuracy analog-to-digital conversion. The IS200SCTTG1A interfaces directly with the Mark VIe main VME-based controller processors via front-panel I/O cables, delivering digitized temperature data with excellent noise immunity and linearization across the full industrial temperature range.
