Description
Technical Specifications
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Product Type: High-Density Digital Driver Board
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Part Number: DS3800HDDD
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Manufacturer: General Electric (GE)
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System Compatibility: GE Speedtronic Mark IV Turbine Control Systems
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Output Channels: 32 digital outputs – highest density in Mark IV
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Output Type: Sourcing or sinking (jumper-selectable per channel)
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Output Voltage: 24Vdc, 48Vdc, or 125Vdc (jumper-selectable)
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Output Current: Up to 500mA per channel (continuous); 1A peak (short duration)
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Protection: Over-current, short-circuit, and over-temperature protection per channel
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Diagnostics: Individual channel fault detection with LED indication
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Isolation: 1500Vrms opto-isolation (logic-to-field)
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Temperature Range: 0°C to +60°C
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MTBF: > 150,000 hours (MIL-HDBK-217F)
Key Features & Advantages
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High Channel Density: The GE DS3800HDDD provides 32 digital outputs on a single 6U board, maximizing rack space efficiency.
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Flexible Output Configuration: Jumper-selectable sourcing or sinking per channel.
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Wide Voltage Range: Supports 24Vdc, 48Vdc, or 125Vdc field devices.
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Comprehensive Protection: Over-current, short-circuit, and over-temperature protection.
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Diagnostic LEDs: Front-panel LEDs indicate output status and fault conditions.
Typical Application Cases
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Solenoid Control: Drives multiple solenoids in turbine control systems.
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Contactor Control: Controls contactors for motor starters and auxiliary equipment.
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Indicator Lamp Driving: Drives indicator lamps and annunciator panels.
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Space-Constrained Installations: Maximizes I/O density where rack space is limited.
Competitive Comparison
| Feature | GE DS3800HDDD | GE DS3800DRRA (Relay) | GE DS3800DXRA (Expansion Relay) | Modern Digital Output Module |
|---|---|---|---|---|
| Channels | 32 | 16 | 16 | 16-32 |
| Output Type | Solid-state (sourcing/sinking) | Relay (Form C) | Relay (Form C) | Solid-state or relay |
| Max Current | 500mA | 5A | 5A | 0.5-2A |
| Voltage Range | 24/48/125Vdc | 250VAC/30VDC | 250VAC/30VDC | 24Vdc |
| Protection | Over-current + short-circuit | None | None | Short-circuit only |
| Compatibility | Mark IV | Mark IV | Mark IV | Universal |
The GE DS3800HDDD offers the highest digital output density in the Mark IV family with solid-state reliability.
Selection Guidelines & Precautions
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Output Configuration: Configure sourcing or sinking per channel to match your field device wiring.
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Voltage Selection: Set output voltage (24V, 48V, or 125V) to match your field devices.
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Current Verification: Ensure each channel’s load does not exceed 500mA continuous.
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Wiring: Use appropriate gauge wiring for current loads.
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ESD Handling: Use ESD-safe practices.
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Sourcing: Obsolete. Request functional test report including all 32 channels tested.
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Spare Strategy: Keep one spare GE DS3800HDDD on-site for critical high-density output applications.
ABB AO801
A-B 1762-L24BXB
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