GE IS200TBCIH2CCD Contact Input Group Isolation Terminal Board (TBCI).

Product Introduction

The IS200TBCIH2CCD is a Contact Input Group Isolation Terminal Board manufactured by GE, specifically designed for the Mark VI Speedtronic series of gas and steam turbine management systems. It serves as a critical component for efficient signal termination, processing, and isolation of dry contact inputs in industrial control environments. This board facilitates seamless integration with GE’s Mark VI platform, ensuring reliable and precise data acquisition while maintaining system integrity in demanding industrial settings. It supports both simplex and Triple Modular Redundancy (TMR) applications, working in conjunction with VTCC/VCRC processor boards in VME racks.
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Description

Technical Specifications

  • Manufacturer: General Electric (GE)
  • Product Series: Mark VI Speedtronic
  • Input Channels: 24 isolated dry contact input channels
  • Input Voltage: Nominal 24 VDC; operates within 24 VDC ±10% range
  • Input Filter: 4 ms hardware filter to reduce high-frequency noise and control surges
  • Power Consumption: 20.6 W on the terminal board
  • Dimensions: 110 mm × 60 mm × 67 mm (11×6×6.7 cm)
  • Weight: 0.14 kg
  • Operating Temperature: -40°C to +85°C
  • Certifications: UL/cUL Class I, Div 2 compliant
  • Configuration: No jumpers or hardware settings required on the board
  • Terminal Blocks: Two barrier-type terminal blocks (TB1/TB2) with 24 screw connections each, accommodating wires up to #12 AWG
  • Connectors: JE1/JE2 for power connection; JR1 (simplex), JR1/JS1/JT1 (TMR) for I/O processor connection
  • Isolation: Group isolation for contact inputs, ensuring signal integrity and protection

Functional Features

  • Group Isolation: Provides group isolation for contact inputs, preventing cross-talk and enhancing signal integrity in industrial environments.
  • Noise Reduction: Integrated noise reduction circuitry protects against surge and high-frequency noise at the point of signal entry.
  • Diagnostic Capabilities:
    • Measures excitation voltage; sets a diagnostic warning if voltage falls below 40% of nominal.
    • Performs input open contact (fail-safe) tests; forces failing inputs to fail-safe mode and generates faults.
    • Detects mismatches with TMR voted values, issuing faults for discrepancies.
    • Includes ID devices in each connector queried by the I/O pack/board for identification and configuration.
  • Flexible Redundancy: Supports both simplex and TMR configurations, adapting to varying system redundancy requirements.
  • Plug-and-Play Integration: Molded plug cables connect to VME racks, ensuring easy and secure integration with VTCC/VCRC processor boards.
  • Easy Maintenance: Terminal blocks can be unplugged for maintenance, with shield terminal strips connected to chassis ground for enhanced safety.
  • C-Rated Revision: C-rated functional product revision ensures enhanced functionality and improved safety standards.

Application Scenarios

  • Turbine Control Systems: Primary application in GE Mark VI Speedtronic gas and steam turbine control systems for monitoring and processing dry contact inputs from various turbine components.
  • Industrial Automation: Used in distributed control systems (DCS) for reliable signal termination in power generation, oil and gas, and petrochemical industries.
  • Simplex and TMR Systems: Ideal for both non-redundant (simplex) and highly reliable (TMR) industrial applications requiring robust input signal handling.
  • Critical Monitoring: Supports critical monitoring functions in turbine control, including emergency trip systems, status indication, and safety interlocks.
  • Harsh Industrial Environments: Designed to operate in extreme temperature ranges (-40°C to +85°C) and hazardous locations (UL/cUL Class I, Div 2), making it suitable for demanding industrial settings.

Compatibility

  • GE Platforms: Mark VI, Mark VIe, Mark VIeS turbine control systems.
  • Processor Boards: VTCC/VCRC processor boards in VME racks.
  • Redundancy Configurations: Simplex and TMR systems with appropriate I/O processor connections.

Installation Notes

  1. Wiring: Connect 24 dry contact input wires directly to two I/O terminal blocks; each block holds 24 terminals (up to #12 AWG) secured by two screws.
  2. Power Connection: Use JE1 and JE2 plugs to connect to contact excitation voltage source.
  3. Cabling: In simplex systems, connect to I/O processor via JR1; in TMR systems, use JR1, JS1, and JT1 connectors.
  4. Grounding: Shield terminal strips to the left of each terminal block must be connected to chassis ground.

Key Advantages

  • Reliability: Ensures precise and reliable signal conditioning and termination for critical contact inputs in industrial control systems.
  • Flexibility: Adapts to both simplex and TMR configurations, providing scalability for diverse application needs.
  • Durability: Robust construction with compact design (11×6×6.7 cm) and lightweight (0.14 kg) for easy installation and long-term performance in harsh conditions.
  • Safety: UL/cUL Class I, Div 2 certification and C-rated revision enhance operational safety in hazardous environments.
  • Diagnostics: Comprehensive diagnostic features minimize downtime by enabling proactive fault detection and fail-safe operation.
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