GE DS3800HLIC1C1A

Parameters

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

• Input Channels: 24 channels (highest density in HLI series)

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

• Input Current: 5mA per channel (typical)

• Response Time: <0.3ms (C1 optimized, fastest in HLI series)

• Hardware Latch: Yes – captures short-duration pulses (<0.5ms) with C1 enhanced timing accuracy

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

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

• Filtering: Programmable input debounce filter with adaptive 50Hz/60Hz noise rejection and transient suppression (C1 feature)

• Coating: Basic conformal coating (suffix A) – single-layer acrylic

• Temp Range: 0°C to +60°C

• Mounting: 6U VME Eurocard, single-slot

• Diagnostics: Advanced onboard with per-channel LED status, open-wire detection, short-circuit protection, signal noise alert, latch event logging, fault logging, and event timestamping (C1 feature)

Advantages & Features

• Highest channel density in HLI series – 24 high-speed inputs on a single board

• Fastest response (<0.3ms) – the fastest discrete input response in the entire Mark IV HLI series, designed for the most extreme critical protection logic

• Hardware latch capability – captures ultra-short pulses with C1 enhanced timing accuracy

• C1 firmware offers adaptive noise rejection, transient suppression, fault logging, event timestamping, and enhanced diagnostics – the most advanced firmware in the HLI series

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

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

• Basic A-grade coating provides light moisture and dust protection for clean indoor installations

• Front-panel LEDs for per-channel status, fault, open-wire detection, signal noise alerts, and event alerts

• 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 requiring sub-0.3ms response

• Flame detection – high-speed UV/IR flame scanner signals for burner management across multiple zones with fault logging and event timestamping

• Emergency trip systems (ETS) – critical discrete inputs for emergency shutdown logic with high channel count and post-event analysis

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

• Retrofit projects upgrading from B1 firmware for the fastest response and advanced diagnostics

Competitor Comparison

• vs. DS3800HLIC1B1D (B1/D variant): Faster response (<0.3ms vs. <0.4ms), C1 diagnostics (fault logging, event timestamping), but A coating (vs. D) – choose C1 for performance, D for environmental protection

• vs. DS3800HLIC1B1C (B1/C variant): Faster response, C1 advanced diagnostics, but A coating (vs. C) – performance vs. protection trade-off

• vs. DS3800HLIC1A1B (A1/B variant): Significantly faster response, C1 diagnostics, but A coating (vs. B) – C1 is a major performance upgrade

• vs. DS3800HLIA1B1D (B1/D variant): More input channels (24 vs. 16), faster response, C1 diagnostics, but A coating (vs. D) – higher density and performance, lower protection

• vs. DS3800HLEA1C1C (input-only high-speed): HLIC1C1A offers faster response (<0.3ms vs. <0.6ms), hardware latch capability, higher channel density (24 vs. 16), and C1 diagnostics – HLIC is for critical protection applications

• vs. DS3800HLCA (hybrid I/O): HLIC1C1A is input-only with significantly faster response (<0.3ms vs. <1ms) and hardware latch – better for critical protection

• vs. ABB DSDI series: Similar high-speed discrete capability, but GE offers faster response, higher density, C1 diagnostics, and hardware latch

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

• vs. Woodward 5437 modules: GE offers faster response, higher density, C1 diagnostics, and hardware latch

Selection Suggestions

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

• Critical: Verify response time requirement – HLIC1C1A’s <0.3ms is the fastest available; ensure your application actually requires this level of speed

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

• Assess channel count – 24 channels cover the largest monitoring applications

• Critical: Evaluate the environmental trade-off – this variant offers the best performance but only basic A coating; if your environment has humidity or chemicals, choose C/D/G/H variants instead

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

• Critical: The <0.3ms response time makes inputs extremely sensitive to noise – use dedicated shielded twisted-pair cables, proper grounding, and separate cable trays from power wiring to avoid false triggers; C1’s adaptive filtering helps but is not a substitute for excellent wiring practices

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

• Critical: A coating provides minimal environmental protection – this board is only suitable for clean, dry, climate-controlled indoor environments. Do not use in areas with humidity, chemicals, dust, or temperature fluctuations

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

• C1 firmware offers adaptive filtering – configure settings correctly for your sensor type; for critical protection, very short debounce delays (or none) may be 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