DS3800HLIC1A1B GE

Parameters

• Input Type: 24V DC discrete (sourcing/sinking, configurable)

• Input Channels: 24 channels (higher density than HLIA’s 16)

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

• Input Current: 5mA per channel (typical)

• Response Time: <0.5ms (hardware-accelerated)

• Hardware Latch: Yes – captures short-duration pulses (<1ms)

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

• Power: +5V DC @ 0.9A, +24V DC @ 0.3A (field power)

• Filtering: Programmable input debounce filter (configurable)

• Coating: Conformal coating (suffix B) – single-layer acrylic

• Temp Range: 0°C to +60°C

• Mounting: 6U VME Eurocard, single-slot

• Diagnostics: LED status per channel, open-wire detection, and short-circuit protection

Advantages & Features

• Higher channel density – 24 high-speed inputs on a single board, more than HLIA’s 16 channels

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

• Hardware latch capability – captures short-duration pulses that might otherwise be missed by firmware polling

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

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

• B-grade coating provides basic moisture and dust protection for indoor installations

• Front-panel LEDs for per-channel status, fault, and open-wire detection

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

Application Cases

• Overspeed protection – ultra-fast magnetic pickup sensor inputs for turbine overspeed trip logic with multiple sensors

• Flame detection – high-speed UV/IR flame scanner signals for burner management across multiple zones

• Emergency trip systems (ETS) – critical discrete inputs for emergency shutdown logic with high channel count

• Turbine start-up sequencing – fast-response speed and position sensors

• Retrofit projects replacing multiple lower-density high-speed input boards with a single higher-density solution

Competitor Comparison

• vs. DS3800HLIA1A1B (A1/B variant): More input channels (24 vs. 16) – HLIC1A1B offers higher density, otherwise similar A1 firmware and B coating

• vs. DS3800HLIA1B1D (B1/D variant): HLIC1A1B offers more channels but lacks B1 firmware features and D-grade coating – choose based on channel count vs. advanced diagnostics

• vs. DS3800HLEA1C1C (input-only high-speed): HLIC1A1B offers faster response (<0.5ms vs. <0.6ms) and hardware latch – HLIC is for critical protection applications

• vs. DS3800HLCA (hybrid I/O): HLIC1A1B is input-only with faster response (<0.5ms vs. <1ms) and hardware latch – better for critical protection

• vs. DS3800HHRB1D1D (standard discrete I/O): HLIC1A1B offers significantly faster response (<0.5ms vs. 3ms) – critical for high-speed protection

• vs. ABB DSDI series: Similar high-speed discrete capability, but GE offers hardware latch and better Mark IV integration

• vs. Siemens 6ES7 series: Similar functionality, but GE offers faster response and higher channel density

• vs. Woodward 5437 modules: GE offers faster response and hardware latch for critical protection

Selection Suggestions

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

• Critical: Verify response time requirement – HLIC1A1B’s <0.5ms is for critical protection

• Verify your backplane provides both +5V and +24V field power with sufficient current capacity (+24V @ 0.3A)

• Assess channel count – 24 channels cover larger monitoring applications with multiple high-speed sensors

• Evaluate environmental conditions – B coating is suitable for clean, dry indoor installations; upgrade to C/D/G/H if needed

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

• For critical protection applications, consider used/refurbished units with 90-day warranty or new-old-stock with calibration certificate

Precautions

• Critical: Do not exceed 30V DC on input channels – overvoltage may damage the isolation circuits

• Critical: High-speed inputs are extremely sensitive to noise – use shielded twisted-pair cables, proper grounding, and dedicated field wiring to avoid false triggers

• Critical: Hardware latch capability requires proper configuration – ensure the latch settings match your application requirements to avoid missing pulses or false captures

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

• A1 firmware is a baseline revision – verify it supports your specific hardware latch configuration requirements

• Programmable debounce filtering must be set correctly – for critical protection, very short debounce delays (or none) may be needed

• B coating provides basic protection but is not suitable for frequent humidity, salt spray, or chemical exposure – upgrade to C/D/G/H if needed

• Allow 30-minute warm-up before commissioning

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

• Periodically verify input 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 multiple lower-density boards, verify wiring and pinout compatibility – HLIC may differ from HLIA in pin assignments