GE IS200ISBBG1AAB is an Insync Bus Bypass Card for Mark VI turbine systems, enabling bus bypass during maintenance/faults to sustain operation. It has 4 connectors, works at -40°C to +70°C, meets UL/CE, ensuring system reliability and minimal downtime.
The IS200ISBBG1AAB serves as a dedicated redundancy control component for GE’s Insync bus architecture, enabling automatic bypass and failover between primary and backup communication buses in turbine and excitation control systems. It continuously monitors bus health (signal integrity, data flow, and error rates) and triggers a seamless switch to the redundant bus within <5ms if faults (e.g., cable damage, signal loss, or excessive errors) are detected, ensuring uninterrupted data transmission between critical system modules.
2. Dual-Bus Monitoring & Switching
Equipped with dual independent monitoring circuits to track both primary and redundant Insync buses simultaneously. The card analyzes key bus parameters—including data frame integrity, synchronization pulses, and bus voltage levels—to identify anomalies. When a fault is confirmed (via configurable thresholds), it activates high-speed relays to bypass the faulty bus, rerouting traffic to the redundant path without disrupting control system communication.
3. Manual Override Capability
Includes a front-panel manual bypass switch, allowing operators to manually force a bus 切换 during maintenance or troubleshooting. This feature enables safe isolation of the primary bus for inspection or repair while keeping the system operational on the redundant path, reducing planned downtime.
4. Comprehensive Diagnostic Features
Real-Time Status Monitoring: Transmits bus health data (e.g., active bus identifier, fault codes, 切换 history) to the system HMI via the Insync bus itself, providing operators with visibility into bus performance.
Fault Logging: Stores the last 50 fault events with time stamps (e.g., bus errors, 切换 triggers, manual overrides) for post-incident analysis and preventive maintenance.
LED Indicators: Front-panel LEDs for primary bus status (green = active, red = fault), redundant bus status (green = standby, yellow = active), and overall card health (green = normal, red = critical fault), enabling quick visual diagnostics.
5. High-Speed Signal Integrity
Designed to maintain signal integrity during bus 切换，with low insertion loss (<1dB) and minimal signal distortion. This ensures that high-speed control data (e.g., turbine speed commands, excitation setpoints) is transmitted without degradation, preserving control loop performance even during failover events.
6. Rugged Industrial Design
Environmental Resilience: IPC-CC-830B Class 3 conformal coating protects against moisture, dust, and chemical contaminants, ensuring reliability in turbine enclosures, control cabinets, or outdoor substations.
Temperature Tolerance: Operates in -40°C to 70°C (-40°F to 158°F), withstanding extreme temperature fluctuations in industrial environments.
Vibration & Shock Resistance: Complies with IEC 60068-2-6 (5g acceleration, 10–500Hz) and IEC 60068-2-27 (50g peak, 11ms duration), enduring mechanical stress from turbine operation or equipment vibration.
7. Seamless System Integration
Bus Compatibility: Specifically designed for GE’s Insync communication bus, supporting data rates up to 10 Mbps—compatible with turbine control systems (e.g., Mark VIe) and excitation systems (e.g., EX2100).
Form Factor: Single-slot 3U Eurocard design, fitting standard GE control racks with plug-and-play integration into system backplanes (e.g., IS200ERBPG1A), reducing installation complexity.
Power Requirements: Operates on 24V DC ±10% from the system backplane, with low power consumption (<3W) to minimize load on the power supply.
8. Safety & Compliance
Isolation: 2.5kV AC isolation between bus circuits and control logic, preventing ground loops and protecting sensitive electronics from high-voltage transients.
Certifications: Compliant with UL 61010-1 (industrial safety), IEC 61800-5-1 (drive system compatibility), and CE standards, ensuring safe operation in global industrial applications.
Fail-Safe Design: Defaults to the redundant bus if power to the card is lost, preventing complete communication failure in emergency scenarios.
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FAQs
How is the component mounted?
The component is designed to be mounted on DIN rails using screws that secure the rails to four of the board's six factory-drilled holes.
What are the connectors labeled P1 through P4 used for?
It is labeled P1 through P3 are used for Full Duplex, XMIT Data Out, and RCV Data In, respectively. The connector labeled P4 is used for 24 VDC Input.
What is a voting relay configuration?
A voting relay configuration involves multiple signals being processed by a voting relay driver to determine a final decision. The aim is to enhance reliability and accuracy in critical protective systems.
How does the voting relay driver function?
The voting relay driver takes input from several signals and processes them to decide the appropriate course of action. This driver operates single relays based on the inputs it receives.
