GE IS200WROBH1A Relay Fuse Board | Mark VIe Power Sensing

Product Overview

• GE IS200WROBH1A is a WROB Relay Fuse and Power Sensing Board.
• Part of the Mark VIe Series from General Electric.
• This is an option board for the PDIO Discrete Input/Output Module.
• Use it with TDBS, SRLY, or TDBT boards for extended functions.

Basic Identification

• ▹ Manufacturer: General Electric (GE)
• ▹ Model: IS200WROBH1A
• ▹ Series: Mark VIe
• ▹ Functional Acronym: WROB
• ▹ Reference Manual: GEH-6721L

Technical Specifications

• ▹ Fuse Value: 3.15 Amperes (default)
• ▹ Redundancy Modes: Simplex, Redundant, or TMR (Triple Modular Redundant)
• ▹ Relay Type: TRLY
• ▹ Terminal Board Compatibility (TMR): TDBTH2, TDBTH4, TDBTH6
• ▹ Compatible boards: TDBS, SRLY, TDBT

Functional Role – How It Works

• When connected to TDBS board, the relay becomes similar to IS20TRLYH1B board.
• Provides fused power distribution to first six relay outputs.
• Also supplies dedicated power to the final relay outputs.
• Default fuse value: 3.15 A.
• Detects fuse status on six fuse pairings using isolated voltage.

Redundancy & I/O Options

• Supports Simplex, Redundant, and TMR I/O pack redundancies.
• In TMR applications, mounts on TDBT board.
• Acts like a TBCI (Terminal Board + Contact Input) in TMR mode.
• Flexible for different reliability needs.

Installation Guide

• Mount IS200WROBH1A onto TDBS, SRLY, or TDBT board.
• For TMR systems, use TDBTH2, TDBTH4, or TDBTH6 terminal boards.
• Connect wiring to relay outputs as needed.
• Check 3.15A fuse before power-up.
• Verify isolated voltage connections for fuse status detection.

Debug & Maintenance

• Board detects fuse status on six fuse pairings.
• Use GE Mark VIe diagnostic tools to monitor fuse health.
• Replace blown 3.15A fuses with same rating only.
• Inspect board for visible damage before use.

Compatibility

• Works with GE Mark VIe PDIO Discrete I/O Module.
• Compatible boards: TDBS, SRLY, TDBT.
• TMR terminal boards: TDBTH2, TDBTH4, TDBTH6.
• Can integrate with Versamax PLC systems via gateway.
• Also works with Modicon Quantum through appropriate interfaces.

Certifications & Compliance

• Manufactured by General Electric to Mark VIe standards.
• Designed for industrial turbine control systems.
• Meets GE specifications for redundant and TMR applications.

Package Contents & Warranty

• 12 months warranty from invoice date. Covers defects.
• Package includes: 1 x IS200WROBH1A board with default 3.15A fuse installed.
• No cables, mounting hardware, or terminal boards included.
• Return defective units for replacement under warranty.

Shipping – Fast Worldwide Delivery

• We ship with FedEx, UPS, DHL express services.
• Tracking number within 24 hours. Insurance included.
• Typical delivery: 3-7 business days.

Typical Applications

• Gas and steam turbine control – Mark VIe systems.
• Power generation discrete I/O applications.
• Systems requiring Simplex, Redundant, or TMR reliability.
• Fuse status monitoring for critical relay outputs.

Diagnostic Capability

• Monitors fuse status on six fuse pairings.
• Isolated voltage detection for accurate reporting.
• Works with Mark VIe system diagnostics.
• Alerts when fuse blows or power fails.

Frequently Asked Questions (FAQ)

• Question: What redundancy modes does IS200WROBH1A support?

  Answer: Simplex, Redundant, and TMR (Triple Modular Redundant).

• Question: What is the default fuse rating?

  Answer: 3.15 Amperes. Use same rating for replacement.

• Question: Which terminal boards work with this board in TMR mode?

  Answer: TDBTH2, TDBTH4, and TDBTH6.

• Question: Can this board act as a TBCI?

  Answer: Yes. In TMR applications it provides TBCI-like function.

• Question: What other boards can the WROB attach to?

  Answer: TDBS, SRLY, and TDBT boards.

Experience-based Q&A (Field Notes)

• Question: My fuse keeps blowing. What should I check?

  Answer: Check for short circuits on relay outputs. Also verify load current below 3.15A.

• Question: Can I use this board in non-TMR applications?

  Answer: Yes. Simplex and Redundant modes work fine.

• Question: The board shows no fuse status. What is wrong?

  Answer: Check isolated voltage connection. Also verify wiring to TDBS board.

• Question: Do I need special software to configure this board?

  Answer: Use standard GE Mark VIe Toolbox software for configuration.

Buying Guide – Choose the Right Board

• Choose IS200WROBH1A if you need relay fuse and power sensing for Mark VIe.
• Need TMR capability? This board supports it with TDBTHx terminal boards.
• Check your application: Simplex for basic, Redundant for backup, TMR for highest reliability.
• Buy compatible terminal board (TDBS, SRLY, or TDBT) separately if needed.
• Keep spare 3.15A fuses on hand for quick replacement.
• Contact us for bulk pricing or system integration support.

Need Help? Contact Us

• Technical support or quote requests:
  +86 158 8020 0923 (WhatsApp)
• Email: sales@plcdcshub.com – reply within 24 hours.
• Pre-sales consulting, datasheets, and RMA support available.

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