AUTOMATION DIRECT D2-16NA Discrete Input Module

AUTOMATION DIRECT D2-16NA Discrete Input Module

Product Description

Detailed Parameters

1. Input Specifications
   • Number of Input Points: 16 independent discrete input channels.
   • Input Voltage Range: 120VAC (nominal), with a tolerance of ±15% (102-138VAC).
   • Input Type: AC voltage detection, compatible with inductive/capacitive proximity sensors, pushbuttons, and relay contacts.
   • Common Terminal Configuration: 4 isolated common terminals (each group of 4 input points shares 1 common terminal), reducing interference between channels.
2. Electrical Characteristics
   • Input Current: 8-12mA per channel at 120VAC.
   • Response Time: ≤5ms (on/off), meeting the needs of general automation control.
   • Isolation Voltage: 250VAC between channels and common terminals, enhancing anti-interference performance.
   • Noise Immunity: Complies with IEC 61000-4-4 standards for electrostatic discharge (ESD) and surge protection.
3. Power Supply and Compatibility
   • Power Supply: Derived from the PLC base (5VDC, maximum current 150mA), no additional power supply required.
   • PLC Compatibility: Seamlessly integrates with DirectLogic DL205 series PLCs, requiring a compatible base (e.g., D2-09BDC).
   • Terminal Type: Removable screw terminals for easy wiring and maintenance.
4. Environmental Parameters
   • Operating Temperature: 0°C to 55°C (32°F to 131°F).
   • Storage Temperature: -20°C to 70°C (-4°F to 158°F).
   • Humidity: 5%-95% RH (non-condensing).
   • Protection Class: IP20 (only suitable for installation in control cabinets).
5. Physical Features
   • Dimensions: 110mm (length) × 76mm (width) × 30mm (height).
   • Weight: Approximately 120g.
   • Status Indicators: Each channel is equipped with an LED indicator (green) to visually display the input signal status.

Product Advantages and Features

1. High Channel Density: 16 input channels integrated into a compact module, saving space in the control cabinet and reducing the number of modules required, thus lowering system costs.
2. Wide AC Voltage Compatibility: Supports 120VAC input, eliminating the need for additional voltage conversion devices in AC-powered industrial environments, simplifying system wiring.
3. Group Isolation Design: 4 isolated common terminals effectively reduce electromagnetic interference (EMI) between channels, ensuring stable signal collection in complex industrial environments.
4. Industrial-Grade Reliability: Adopts industrial-grade components and surge protection designs, ensuring stable operation in harsh environments such as high noise and temperature fluctuations.
5. Easy Installation and Maintenance: Plug-and-play integration with DirectLogic DL205 series PLCs; removable terminals simplify wiring, and per-channel LED indicators facilitate quick troubleshooting of signal status.

Application Areas

1. Industrial Automation Production Lines: Collects status signals from conveyor sensors, limit switches, and safety interlocks to provide real-time feedback for production process control.
2. Mechanical Equipment Control: Connects to photoelectric sensors, emergency stop buttons, and travel switches of machine tools, packaging machines, and printing presses to monitor equipment operation status.
3. HVAC and Building Automation: Collects signals from valve position switches, pressure switches, and temperature control contacts to realize linkage control of building equipment.
4. Material Handling Systems: Integrates with proximity sensors and in-place switches of stackers and conveyor lines to achieve precise control of logistics and warehousing equipment.
5. Power Distribution Monitoring: Connects to auxiliary contact signals of circuit breakers and contactors in power distribution systems to monitor the on/off status of electrical equipment.

Precautions

1. Power Connection:
   • The input signal voltage must be within the 102-138VAC range; avoid overvoltage (exceeding 138VAC) to prevent module damage.
   • Ensure the polarity of the common terminal wiring matches the external sensor power supply to avoid signal distortion or non-response.
2. Wiring Requirements:
   • Use shielded cables for input signal lines, and avoid parallel routing with high-voltage power cables to reduce electromagnetic interference.
   • Turn off the system power before wiring; tighten terminal screws to prevent poor contact and signal loss.
3. Environmental Requirements:
   • Install the module in a well-ventilated control cabinet, avoiding exposure to dust, moisture, corrosive gases, or direct sunlight.
   • If the ambient temperature exceeds 55°C, take cooling measures (such as installing fans) to prevent performance degradation.
4. Compatibility Check:
   • Confirm that the PLC base (e.g., D2-09BDC) supports the D2-16NA module and that the base’s power supply capacity meets the module’s requirements (≤150mA at 5VDC).
5. Maintenance Notes:
   • Regularly check the tightness of terminal connections and the status of LED indicators; clean the module surface with a dry cloth to prevent dust accumulation.
   • When replacing the module, ensure the system is powered off to avoid damage to the PLC or module due to hot swapping (the module does not support hot swapping).

The structure and details of the product：

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