IS200VRTDH1D GE Mark VI RTD Input Board | 16-Channel

IS200VRTDH1D – GE Mark VI RTD Input Board for Demanding Turbine Control

Key Technical Specifications

• Brand: General Electric (GE)
• Model: IS200VRTDH1D
• Series: Mark VI
• Category: RTD Input Board
• Channels: 16 three-wire RTD inputs per board
• Resolution: 14-bit A/D converter
• Power Consumption: Less than 12 W
• Excitation Current: 10 mA DC multiplexed, not continuous
• Sampling Rate: Normal mode 4 samples per second; Fast mode 25 samples per second
• RTD Types: Linearization for 15 selectable RTD types
• Measurement Range: Supports RTDs below 190 Ω with gain options for higher accuracy
• Frequency Response: 4 Hz sampling and 50 Hz system-frequency filtering options
• Linearity: Digital signal processor performs linearization for each selected RTD type
• Environmental Tolerance: High-frequency grounding decoupling on all RTD input signals
• Anti-Interference: RTD multiplexing prevents simultaneous excitation of the same RTD
• Country of Origin: USA
• Availability: In Stock

Functional Overview

• The board supplies a multiplexed 10 mA DC excitation current to each RTD through a terminal board.
• Returning RTD signals pass through voltage-to-frequency converters and sample counters.
• A VCO-type A/D converter changes the signal into digital temperature values.
• The digital signal processor linearizes data for 15 selectable RTD types.
• The VRTD board transmits processed data to the controller through the VME backplane.
• The VCMI communication interface handles data transfer between the board and controller.

Fault Detection and Diagnostics

• Out-of-range values detect RTD short circuits and RTD open circuits.
• The affected channel leaves the scan when an RTD exceeds hardware limits.
• Other channels continue operating normally without interruption.
• Repaired channels can restore automatically after approximately 20 seconds.
• Operators can also restore repaired channels manually.
• Three front-panel LEDs indicate board status: RUN, FAIL, and Diagnostic.
• The RUN LED typically stays solid green; the FAIL LED flashes green.
• The Diagnostic LED remains off normally and stays steady orange during a diagnostic alarm.
• A composite diagnostic alarm (L3DIAG VRTD) generates if any input reaches a hardware limit.
• Diagnostic information is available through the system toolbox.
• Individual diagnostic signals can be latched and cleared with the RESET DIA signal.

Triple Modular Redundancy (TMR)

• The TRTDH1B configuration supports redundant RTD inputs in a TMR architecture.
• Inputs distribute across three VRTD boards located in the R, S, and T racks.
• High-frequency grounding decoupling is provided on all RTD input signals.
• RTD multiplexing prevents loss of temperature data if a cable or VRTD board fails.
• RTDs are read simultaneously by the R, S, and T VRTD boards.
• Each VRTD board reads a different RTD pair than the previous board.
• This approach prevents simultaneous excitation of the same RTD and improves measurement accuracy.

Configuration Parameters

• System Limits: Enable or disable system limit checking.
• Auto Reset: Enable or disable automatic restoration of RTD channels removed from scanning.
• Group A Rate: Sampling rate and system-frequency filtering for the first group of 8 inputs. Options include 4 Hz and 50 Hz filter.
• Group A Gain: Higher measurement accuracy for RTDs with resistance below 190 Ω. Options include Normal (1.0), Gain 2.0 (10 Ω), and Cu_10.0.
• Group B Rate: Sampling rate and system-frequency filtering for the second group of 8 inputs. Options include 4 Hz and 50 Hz filter.
• Group B Gain: Higher measurement accuracy for RTDs with resistance below 190 Ω. Options include Normal (1.0) and Gain 2.0.

System Integration

• TRTDH1B and TRTDH1C terminal boards operate with the VRTD processor in the Mark VI control system.
• They support both simplex applications and Triple Modular Redundant (TMR) applications.
• One TRTDH1C terminal board connects to the VRTD processor through two cables.
• In TMR systems, six connections link the TRTDH1B terminal board to three VRTD processors.

Installation Guide

• Turn off power to the VME processor rack before starting installation.
• Insert the board and press the top and bottom levers until the edge connectors fully seat.
• Tighten the captive screws on the top and bottom of the front panel.
• Verify all cable connections between the terminal board and VRTD processor.
• Restore power and check the front-panel LEDs for normal operation.

Package Contents

• 1 × IS200VRTDH1D RTD Input Board
• 1 × Anti-static protective bag
• 1 × Protective foam packaging

Shipping and Support

• We ship with FedEx, UPS, and DHL for fast and reliable delivery.
• We dispatch orders within 5 days after payment confirmation.
• We accept returns within 30 days for eligible items.
• All units are brand new and original.
• We keep this model in stock for immediate order processing.

FAQ

• Q: What is the IS200VRTDH1D used for?
  A: It converts 16 three-wire RTD inputs into digital temperature values for GE Mark VI control systems.
• Q: How many RTD channels does this board support?
  A: The board supports 16 three-wire RTD inputs per unit.
• Q: What is the A/D converter resolution?
  A: It uses a 14-bit A/D converter for digital temperature conversion.
• Q: What sampling rates are available?
  A: Normal mode provides 4 samples per second, and Fast mode provides 25 samples per second.
• Q: Does this board support TMR applications?
  A: Yes, the TRTDH1B configuration supports redundant RTD inputs in a Triple Modular Redundant architecture.
• Q: How does the board handle faulty RTD channels?
  A: It removes the affected channel from the scan and restores it automatically after about 20 seconds or manually.
• Q: What is the power consumption?
  A: The board consumes less than 12 W.
• Q: Is this product in stock?
  A: Yes, we keep this model in stock and ship within 5 days.

Contact Information

Inquiries: sales@nex-auto.com or +86 153 9242 9628.

Partner NexAuto Technology Limited: https://www.nex-auto.com/