GE DS3800HRMD1C1B

Product Overview

Product Parameters

• Product Model: DS3800HRMD1C1B
• Manufacturer: GE Energy (Speedtronic series)
• Product Type: Digital input/output module
• Input Channels: 16 channels (24V DC dry contacts, sink/source selectable)
• Output Channels: 8 relays (SPDT, 2A @ 30V DC / 0.5A @ 120V AC)
• Input Response Time: ≤3ms (ON/OFF switching)
• Output Contact Life: 100,000 operations (resistive load)
• Isolation Voltage: 1500V AC (between channels / channel to ground)
• Backplane Communication: Dual-redundant VME bus
• Operating Temperature: -40°C ~ +85°C
• Protection Rating: IP52 (front panel)
• Compatible System: GE Mark IV Speedtronic
• MTBF: 300,000 hours (IEC 61709)

Structure and Composition

Signal Acquisition Layer

• Input channels are equipped with photoelectric isolation + Schmitt triggers to eliminate contact bounce and support a wide input voltage range of 15-30V DC.
• Each group of 8 channels shares an independent common terminal (COM), enabling flexible grouped wiring.

Output Drive Layer

• Uses latching relays (no continuous power supply required) with built-in arc suppression circuits and contact wear monitoring.
• Output status is indicated in real-time via red LEDs (independent for each channel).

Communication and Power Layer

• Dual-redundant DC/DC power modules (24V DC input) support millisecond-level fault switching.
• Exchanges data with the Mark IV controller via gold-plated backplane connectors, offering strong corrosion resistance.

Key Features and Advantages

• Gas turbine-specific safety design: Certified to SIL2/API 670, all output channels feature short-circuit self-cutoff functions to prevent turbine surge caused by misoperation.
• Dual-redundant architecture: Supports parallel operation with the DS3800HRMD1C2B module, enabling automatic switching in case of faults, with system availability >99.99%.
• Superior anti-interference: 1500V AC isolation between channels + TVS diode protection to resist on-site electromagnetic noise (e.g., from frequency converters, arc interference).
• Self-diagnostic capability: Real-time monitoring of faults such as relay contact sticking and coil open circuits, triggering preventive maintenance alerts via ToolboxST software.
• Vibration resistance: Passed IEEE 344 Class 1 testing, capable of withstanding 15G continuous impact, suitable for high-vibration gas turbine environments.

Application Fields

• Emergency Shutdown System (ESD): Triggers rapid closure of fuel valves (interlocking with the DS3800HSCA safety module).
• Sequential Fuel Control (SFC): Controls the timing of ignition transformers and inlet guide vane (IGV) actuators.
• Grid black start: Drives excitation system contactors to ensure rapid grid connection of gas turbines.
• Offshore platforms: Forms a triple-redundant safety chain with the Triconex 1131 system.

Related Products

• DS3800HRMD1C1B: Redundant pairing module supporting automatic fault switching.
• DS2000DCFBG1B: Mark VI communication card for system upgrades.
• DS3800PSDC: Dedicated 24V DC redundant power module.
• IS200TBAIH1C: Mark VIe compatible module, replacing obsolete Mark IV systems.
• DS3800HSCA: Safety control module implementing SIL3-level interlocking logic.

Installation and Maintenance

Pre-installation Preparation

• Use an insulation tester to confirm that the rack grounding resistance is <1Ω to avoid electrostatic damage to the module.
• Check that backplane slots are not deformed and that the spare module’s firmware version is compatible with the system.
• Prepare shielded twisted-pair cables (e.g., Belden 8761) for digital signal transmission.

Maintenance Recommendations

• Clean the module’s heat dissipation slots every 6 months and check terminal screw torque (0.6N·m).
• Annually use a contact resistance tester to check relay contact impedance (should be <50mΩ).
• When replacing the module, re-download configurations via ToolboxST software; hot swapping is prohibited.

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If you would like to learn more about our products and services, please feel free to contact us at any time!

• Sales Manager : Jinny
• Email : sales5@xrjdcs.com
• Whatsapp/Mobile:+86 15359273791

Global renowned brand cooperation

ABB 丨 GE 丨Allen Bradley  丨  Honeywell 丨   Emerson  丨  Bently Nevada   丨 Westinghouse  

Triconex  丨   Foxboro 丨   ICS Triplex  丨  Hima  丨  Schneider 丨  Yokogawa  丨 Woodward

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Specialized in Control Systems and Drives

Why Choose Us?

• Most competitive prices
•  Premium quality guaranteed
• Professional and reliable service
• Fast delivery
• Large stock availability

Price Commitment

Frequently Asked Questions (FAQs)

1. Q: What is the warranty period?
   A: All products come with a 1-year warranty.
2. Q: How long is the delivery time?
   A: Usually 1-2 days.
3. Q: Can other suppliers offer better prices?
   A: “Creating maximum benefits for customers is our belief. If you find a better price, please inform us, and we will do our best to meet your price expectations and support you.”
4. Q: What shipping options are available?
   A: We can arrange shipments via DHL, FedEx, UPS, TNT, EMS, etc., with preferential rates. Of course, customers can also choose their own freight forwarders.
5. Q: What payment methods are accepted?
   A: Generally, we accept T/T. Alipay and Western Union are also acceptable.