GE DS3800HLNF

Parameters

• Output Type: 24V DC discrete (transistor, sourcing or sinking configurable)

• Output Channels: 16 channels (higher density than HLNA’s 8 and HLNE’s 8)

• Output Voltage: 24V DC (nominal), 10–30V DC range

• Output Current: 0.5A per channel (short-circuit protected)

• Response Time: <0.5ms (high-speed logic capability)

• Isolation: 2500V RMS optical isolation (channel-to-backplane)

• Power: +5V DC @ 0.9A, +24V DC @ 0.35A (higher due to more channels)

• Diagnostics: Advanced onboard with LED status per channel, short-circuit protection, open-wire detection, and specialized output monitoring

• Coating: Conformal coating (suffix F) – multi-layer acrylic with enhanced chemical and moisture resistance (superior to E)

• Temp Range: -18°C to +74°C (extended over E variant)

• Mounting: 6U VME Eurocard, single-slot

• Compatibility: Mark IV backplanes and some VIe systems (with adapter)

Advantages & Features

• Higher channel density – 16 high-speed outputs on a single board, more than HLNA’s 8 and HLNE’s 8 channels

• Specialized configuration – tailored for specific output applications requiring unique timing, sequencing, or fault handling

• Ultra-fast output response (<0.5ms) – designed for critical trip and protection logic

• Flexible output configuration – channels can be set as sourcing or sinking via jumpers

• Short-circuit protected outputs prevent damage from field wiring faults

• Isolated channels protect the backplane from field wiring faults and surges

• F-grade coating provides superior moisture and chemical resistance compared to E – suitable for environments with frequent humidity or chemical exposure

• Extended temperature range (-18°C to +74°C) offers more flexibility than E variant

• Front-panel LEDs for per-channel status, fault, and output state indication

• Compatible with Mark IV backplanes and some VIe systems (with adapter)

Application Cases

• Specialized overspeed trip outputs – unique timing requirements for turbine overspeed protection with high channel count

• Flame detection outputs – fast fuel trip valve actuation with specialized fault handling across multiple zones in chemically exposed environments

• Emergency trip systems (ETS) – critical output actuation with advanced diagnostics and high channel count

• Turbine start-up sequencing – specialized timing requirements for starter, purge, and auxiliary valves

• Retrofit projects replacing specialized high-speed output boards in Mark IV systems with higher density and superior environmental protection

Competitor Comparison

• vs. DS3800HLNE (E variant): More output channels (16 vs. 8) and superior F coating (vs. E) – significant upgrade

• vs. DS3800HLNA (A variant): More channels (16 vs. 8), specialized configuration, and F coating – major upgrade

• vs. DS3800HLNC (C variant): Specialized configuration and superior F coating (vs. C) – HLNF offers unique features with better protection

• vs. DS3800HLND (D variant): Specialized configuration and superior F coating (vs. D) – HLNF offers unique features with better protection

• vs. DS3800HLND1C1C (C1/C variant): HLNF offers specialized configuration and F coating but lacks C1 firmware features – choose based on specialization vs. advanced diagnostics

• vs. DS3800HHTB1D1D (relay output): HLNF offers significantly faster response (<0.5ms vs. 12ms) – better for high-speed protection

• vs. DS3800HLCB (hybrid high-speed I/O): HLNF is output-only with faster response – better for critical protection outputs

• vs. ABB DSDI series: Similar high-speed discrete capability, but GE offers higher density, specialized configuration, and F-grade coating

• vs. Siemens 6ES7 series: Similar functionality, but GE offers specialized high-speed output configuration, higher density, and F coating

• vs. Woodward 5437 modules: GE offers higher density, specialized configuration, and F-grade coating

Selection Suggestions

• Critical: Confirm the specialized configuration specifics – the “F” variant may have unique timing, sequencing, or fault handling features; standard documentation may not fully apply

• Critical: Confirm output configuration (sourcing vs. sinking) – jumper settings must match your field devices

• Critical: Confirm output load current – do not exceed 0.5A per output channel

• Verify your backplane provides both +5V and +24V field power with sufficient current capacity (+24V @ 0.35A)

• Assess channel count – 16 outputs cover larger specialized actuation applications

• Evaluate environmental conditions – F coating is suitable for frequent humidity and chemical exposure; choose G/H for more demanding conditions

• Order mating front connector (p/n may vary – confirm with GE)

• For critical protection applications, consider used/refurbished units with 90-day warranty

Precautions

• Critical: The “F” suffix may indicate specialized configuration – do not assume standard HLN parameters apply; verify all specifications with the manufacturer or supplier

• Critical: Do not exceed 30V DC or 0.5A per output channel – overvoltage or overcurrent may damage the output transistors

• Critical: Do not short-circuit output channels – outputs are protected but prolonged shorts may cause damage

• Critical: High-speed outputs are sensitive to inductive kickback from solenoids – use flyback diodes or surge suppressors across inductive loads to prevent damage

• Ensure field power supply (+24V DC) is stable and within 10–30V DC range

• Use properly sized wiring for output currents – undersized wires may cause voltage drop and overheating

• F coating provides good protection but is not suitable for direct salt spray, heavy chemical exposure, or continuous condensation – upgrade to G/H for those conditions

• Allow 45-minute warm-up before commissioning (F coating affects thermal equilibrium)

• Store in ESD-safe packaging – edge connector is static-sensitive

• Periodically verify output operation every 6 months (critical protection circuits require frequent testing)

• Do not hot-swap – Mark IV backplanes require power-off for insertion/removal

• If replacing a similar specialized board, verify wiring and pinout compatibility – HLNF may differ from other HLN series in pin assignments

• F coating may make component-level repairs difficult – consider board replacement instead of repair