DS3800HLCA1C1D GE

Parameters

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

• Output Type: 24V DC discrete (transistor, 0.5A per channel)

• Input Channels: 8 channels (configurable)

• Output Channels: 8 channels (configurable)

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

• Input Current: 5mA per channel (typical)

• Output Rating: 24V DC @ 0.5A per channel (short-circuit protected)

• Response Time: <0.8ms (inputs, C1 optimized) / <1.5ms (outputs, C1 optimized)

• Isolation: 2500V RMS optical isolation (upgraded from 1500V)

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

• Filtering: Programmable input debounce filter with adaptive noise rejection (C1 feature)

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

• Temp Range: -15°C to +70°C (extended, enabled by D coating)

• Mounting: 6U VME Eurocard, single-slot

• Diagnostics: Enhanced onboard with per-channel LED status, short-circuit protection, open-wire detection, and fault logging (C1 feature)

Advantages & Features

• Hybrid high-speed I/O – combines 8 inputs and 8 outputs on a single board, saving cabinet space

• C1 firmware offers faster response (<0.8ms input, <1.5ms output), adaptive debounce filtering, and enhanced diagnostics including fault logging – a significant upgrade over standard A revisions

• Higher isolation (2500V) protects against ground loops and transient surges

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

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

• D-grade coating provides superior moisture resistance and mild chemical protection – suitable for environments with frequent humidity or light chemical exposure

• Extended temperature range (-15°C to +70°C) offers more flexibility than B/C variants

• 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

• Overspeed protection systems – high-speed inputs from magnetic pickup sensors with fast trip outputs in humid environments

• Flame detection and burner management – digital signals from UV/IR flame scanners with output to fuel trip valves

• Valve position monitoring and control – limit switch inputs with solenoid valve outputs in plants with occasional moisture

• Proximity switch monitoring – for turbine speed, position, and timing applications with fast actuator response

• Retrofit projects upgrading from standard A firmware for faster response, better diagnostics, and environmental protection

Competitor Comparison

• vs. DS3800HLCA (standard A variant): Faster response (<0.8ms vs. <1ms input, <1.5ms vs. <2ms output), higher isolation (2500V vs. 1500V), C1 diagnostics, D coating, and wider temp range – significant upgrade

• vs. DS3800HL0A1EC (input-only high-speed): HLCA1C1D offers both inputs and outputs (8 in/8 out) vs. input-only (16 in) – HLCA provides hybrid I/O but fewer total channels

• vs. DS3800HHRB1D1D (standard discrete I/O): HLCA1C1D offers faster response (<0.8ms vs. 3ms) and hybrid I/O – significant upgrade for high-speed applications

• vs. DS3800HHTB1D1D (relay output board): HLCA1C1D offers transistor outputs (faster) vs. relay outputs (slower) – better for high-speed actuation

• vs. ABB DSDI series: Similar high-speed discrete capability, but GE offers better Mark IV integration and C1 diagnostics

• vs. Siemens 6ES7 series: Similar functionality, but GE offers specialized high-speed hybrid I/O with C1 features

• vs. Woodward 5437 modules: GE offers faster response and hybrid I/O in a single board with D-grade coating

Selection Suggestions

• Critical: Confirm input type (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 – this board requires both rails

• Assess channel count – 8 inputs and 8 outputs are suitable for small to medium protection/control loops

• Evaluate if C1’s fault logging and adaptive debounce filtering are beneficial – particularly valuable for critical protection applications

• Evaluate environmental conditions – D coating is suitable for frequent humidity and mild chemical exposure; choose 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: Do not exceed 30V DC on input or output channels – overvoltage may damage the isolation circuits

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

• Critical: High-speed inputs are sensitive to noise – use shielded twisted-pair cables and proper grounding to avoid false triggers; C1’s adaptive filtering helps but is not a substitute for good wiring practices

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

• C1 firmware offers adaptive debounce filtering – configure settings correctly for your sensor type and application requirements

• D 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 30–45 minute warm-up before commissioning (D coating affects thermal equilibrium)

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

• Periodically verify input and output operation every year (high-speed protection circuits require regular testing)

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

• If replacing separate input and output boards, verify wiring and pinout compatibility – HLCA may differ from standard discrete series in pin assignments

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