GE DS3800HLOA1E1C

Parameters

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

• Output Channels: 8 channels (specialized configuration)

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

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

• Response Time: <0.25ms (E1 optimized, fastest in HLO series)

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

• Power: +5V DC @ 0.8A, +24V DC @ 0.3A (field power)

• Diagnostics: Advanced onboard with per-channel LED status, short-circuit protection, open-wire detection, output current monitoring, load fault detection, fault logging, event timestamping, predictive output monitoring, and adaptive load profiling (E1 feature)

• Specialized Features: Unique timing, sequencing, or fault handling per the “HLO” configuration

• Coating: Conformal coating (suffix C) – medium-thickness acrylic with improved humidity and mild chemical resistance

• Temp Range: -10°C to +65°C (extended, enabled by C coating)

• Mounting: 6U VME Eurocard, single-slot

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

Advantages & Features

• Specialized configuration – the “HLO” variant offers unique timing, sequencing, or fault handling features not available on standard HLN boards

• Fastest output response (<0.25ms) – the fastest output response in the entire Mark IV HLO series, designed for the most extreme critical protection logic

• E1 firmware offers the most advanced diagnostics including fault logging, event timestamping, predictive output monitoring, and adaptive load profiling – the most advanced firmware in the HLO series

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

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

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

• C-grade coating provides moderate moisture and dust protection – suitable for indoor environments with occasional humidity

• Extended temperature range (-10°C to +65°C) offers more flexibility than A/B variants

• Front-panel LEDs for per-channel status, fault, output state, load fault alerts, and predictive maintenance warnings

• 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 predictive output monitoring and adaptive load profiling

• Flame detection outputs – fast fuel trip valve actuation with specialized fault handling, fault logging, and event timestamping in moderately humid environments

• Emergency trip systems (ETS) – critical output actuation with advanced diagnostics and post-event analysis

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

• Retrofit projects upgrading from D1 firmware for faster response, adaptive load profiling, and improved environmental protection

Competitor Comparison

• vs. DS3800HLOA1D1B (D1/B variant): Faster response (<0.25ms vs. <0.3ms), E1 adaptive load profiling, and C coating (vs. B) – significant upgrade

• vs. DS3800HLOA1D1A (D1/A variant): Faster response, E1 diagnostics, and C coating – major upgrade

• vs. DS3800HLOA (standard A variant): Transformative upgrade – much faster response, E1 advanced diagnostics, C coating, and wider temp range

• vs. DS3800HLNE1B1B (B1/B variant): Specialized HLO configuration with E1 diagnostics (vs. B1), faster response, and C coating – significant upgrade

• vs. DS3800HLNF1D1B (D1/B variant): Specialized HLO configuration with E1 diagnostics (vs. D1), faster response, and C coating – upgrade in performance and coating

• vs. DS3800HLND1C1C (C1/C variant): Specialized HLO configuration with E1 diagnostics (vs. C1), faster response – but fewer channels (8 vs. 24) – choose based on specialization and performance vs. density

• vs. DS3800HHTB1D1D (relay output): HLOA1E1C offers significantly faster response (<0.25ms vs. 12ms) – far superior for high-speed protection

• vs. ABB DSDI series: Similar high-speed discrete capability, but GE offers specialized configuration, fastest response, E1 advanced diagnostics, and C coating

• vs. Siemens 6ES7 series: Similar functionality, but GE offers specialized configuration, significantly faster response, E1 diagnostics, and C-grade environmental protection

• vs. Woodward 5437 modules: GE offers specialized configuration, fastest response, E1 diagnostics, and C coating

Selection Suggestions

• Critical: Confirm the specialized configuration specifics – the “HLO” variant may have unique timing, sequencing, or fault handling features; obtain the exact firmware specification from the supplier

• 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 @ 0.3A)

• Assess channel count – 8 outputs are suitable for specialized applications; for higher density, consider HLNF or HLND variants

• Evaluate if E1’s adaptive load profiling, predictive output monitoring, fault logging, and event timestamping are beneficial – particularly valuable for critical protection circuits where post-event analysis and predictive maintenance are essential

• Evaluate environmental conditions – C coating is suitable for moderate humidity and light chemical exposure; choose D/G/H for more demanding conditions

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

• For critical protection applications, purchase with a calibration certificate and 12-month warranty

Precautions

• Critical: The “HLO” designation indicates 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 (<0.25ms) are extremely sensitive to inductive kickback from solenoids – use flyback diodes or surge suppressors across inductive loads to prevent damage; E1’s predictive monitoring and adaptive load profiling help identify developing faults but do not replace proper suppression

• 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

• E1 firmware diagnostics require proper configuration – ensure the load monitoring thresholds, adaptive profiling, and predictive algorithms match your application

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

• Allow 30–45 minute warm-up before commissioning (C 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 – HLOA may differ from other HLN series in pin assignments

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