RELIANCE S-D4039 Digital input module

RELIANCE S-D4039 Digital input module

Specific Parameters

• Electrical ParametersSupply Voltage: 24V DC, allowable fluctuation range 19.2-28.8V DC, rated power consumption ≤5WInput Channels: 16 independent digital input channels, supporting sinking/sourcing input mode switchingSignal Type: 24V DC discrete signals, active voltage range 18-30V DC, off voltage ≤10V DCInput Current: 4-8mA active current per channel, no-load current ≤1mAIsolation Level: Electrical isolation between channels and between channels and power supply, isolation voltage ≥1500V DC (1min withstand voltage test), insulation resistance ≥200MΩ (500V DC)Diagnostic Functions: Supports channel short circuit, open circuit, and overvoltage status monitoring; fault information is uploaded in real time via Genius bus, and local LED indicators synchronize alarmsBus Compatibility: Adapts to Reliance Genius communication bus, data transmission rate 1Mbps
• Environmental ParametersOperating Temperature: -40°C to 70°C (non-condensing environment, no derating)Storage Temperature: -55°C to 85°CRelative Humidity: 5% to 95% (non-condensing, continuous operation for 168 hours at 90% humidity and 40°C without failure)Vibration Resistance: 10-500Hz frequency range, 1.5g acceleration (complies with IEC 60068-2-6 standard, 2 hours test for X/Y/Z axes each)Shock Resistance: 30g acceleration, 11ms duration (complies with IEC 60068-2-27 standard, half-sine shock waveform)Certification Standards: UL 508 industrial control equipment certification, CE (EMC and safety certification)
• Mechanical ParametersDimensions: 110mm (L) × 75mm (W) × 32mm (H) (including connectors)Weight: Approximately 0.4kgMounting Method: Standard 35mm DIN rail mounting, compatible with Reliance standard control cabinetsHousing Material: Flame-retardant reinforced PA66 plastic (UL 94 V-0 grade, oil-resistant and resistant to weak acid and alkali corrosion)Indicators: Independent status LED per channel (green steady on = signal valid, red steady on = channel fault), module power LED (green steady on = normal power supply), bus communication LED (yellow blinking = normal communication)

Product Performance

Signal acquisition response is fast, with input response time ≤1ms per channel, enabling real-time capture of on-site equipment status changes to meet the real-time requirements of high-speed control loops (e.g., production line equipment start-stop, valve switching). Channel-level diagnostic functions cover full-scenario abnormalities such as short circuits, open circuits, and overvoltages; diagnostic coverage rate ≥99%. In case of faults, local LEDs and bus signals synchronize alarms, allowing maintenance personnel to quickly locate problems and reduce troubleshooting time.

Hardware stability is excellent, adopting industrial-grade components and wide-temperature design. Mean Time Between Failures (MTBF) ≥1.2×10⁶ hours (MIL-HDBK-217F standard, 25℃ environment), enabling continuous and stable operation in industrial scenarios with high temperature, high dust, and strong electromagnetic interference. It supports hot-swapping, with module live replacement time ≤10 seconds; the replacement process does not affect signal acquisition of other channels or system operation, improving maintenance efficiency.

System compatibility is strong, fully adapting to Reliance GMR redundant control system and MaxPak programming software, supporting online channel configuration, diagnostic parameter adjustment, and firmware upgrade. Parameter updates can be completed without interrupting the system, adapting to the expansion and upgrade needs of existing automation architectures.