GE DS3800HLNA1D1A

Parameters

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

• Output Channels: 8 channels

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

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

• Response Time: <0.3ms (D1 optimized, faster than standard <0.5ms)

• 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, fault logging, output current monitoring, and load fault detection (D1 feature)

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

• Temp Range: 0°C to +60°C

• Mounting: 6U VME Eurocard, single-slot

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

Advantages & Features

• Ultra-fast output response (<0.3ms) – the fastest output response in the HLN series, designed for the most critical trip and protection logic

• D1 firmware offers advanced diagnostics including fault logging, output current monitoring, and load fault detection – a significant upgrade over standard A revisions

• 8-channel density provides sufficient outputs for overspeed, flame, and ETS actuation

• 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

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

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

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

Application Cases

• Overspeed trip outputs – high-speed solenoid actuation for turbine overspeed protection with output current monitoring

• Flame detection outputs – fast fuel trip valve actuation for burner management systems with fault logging

• Emergency trip systems (ETS) – critical output actuation for emergency shutdown with load fault detection

• Turbine start-up sequencing – fast-response output for starter and purge valves

• Retrofit projects upgrading from standard A firmware for advanced diagnostics and faster response

Competitor Comparison

• vs. DS3800HLNA (standard A variant): Faster response (<0.3ms vs. <0.5ms), D1 diagnostics (fault logging, current monitoring, load fault detection) – significant upgrade

• vs. DS3800HLNA1A1A (A1/A variant): Faster response and D1 diagnostics – major upgrade

• vs. DS3800HHTB1D1D (relay output): HLNA1D1A offers significantly faster response (<0.3ms vs. 12ms) – better for high-speed protection

• vs. DS3800HLCB (hybrid high-speed I/O): HLNA1D1A is output-only with faster response than HLCB’s output response (<1.2ms) – better for critical protection outputs

• vs. DS3800HLIA1B1D (high-speed input): HLNA1D1A is the output counterpart – use both for complete protection I/O

• vs. ABB DSDI series: Similar high-speed discrete capability, but GE offers faster output response, D1 diagnostics, and better Mark IV integration

• vs. Siemens 6ES7 series: Similar functionality, but GE offers faster response, D1 diagnostics, and specialized high-speed output configuration

• vs. Woodward 5437 modules: GE offers faster response, D1 diagnostics, and optimized for Mark IV integration

Selection Suggestions

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

• 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 cover most trip and protection actuation needs

• Evaluate if D1’s output current monitoring and load fault detection are beneficial – particularly valuable for critical protection circuits where load integrity is essential

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

• 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 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; D1’s load fault detection helps identify faults but does 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

• D1 firmware diagnostics require proper configuration – ensure the load monitoring thresholds match your application

• Basic A coating does not protect against humidity or corrosive gases – upgrade to B/C/D/G/H if your environment has moisture or chemicals

• Allow 30-minute warm-up before commissioning

• 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 high-speed board, verify pinout compatibility – HLNA may differ from other discrete series in pin assignments