DH366NRK EATON

DH366NRK EATON Analog Output Modules

Product  Description：

An analog output module acts as a digital-to-analog converter (DAC), providing the crucial link between the discrete digital world of the PLC and the continuous world of industrial control. The module receives a digital data word (typically 12 to 16 bits) from the PLC backplane, corresponding to a desired output level. It converts this digital value into a proportional current (e.g., 4-20 mA) or voltage (e.g., 0-10 V), which can then be used to precisely control actuators like variable speed drives (VFDs), proportional valves, dampers, and indicators.

Product Parameters (Typical)

Parameters vary by specific series (e.g., XV-series, XC-series) and model.

• Number of Channels: Typically 2, 4, or 8 independent output channels per module.

• Output Types: Selectable or fixed output ranges:

  • Current: 4-20 mA, 0-20 mA.

  • Voltage: 0-10 V, $\pm 10$ V, 0-5 V.

• Resolution: The precision of the digital-to-analog conversion, commonly 12-bit, 14-bit, or 16-bit. Higher resolution means finer control steps.

• Accuracy: The total error of the output signal relative to the requested digital value, typically expressed as a percentage of the full scale (e.g., $\pm 0.1\%$ FS).

• Isolation: Electrical isolation between the output channels and the backplane, and sometimes between channels, to prevent noise and ground loops.

• Update Time/Conversion Rate: The speed at which the module updates its output signal, often in the range of milliseconds.

• Power Consumption: The amount of power drawn from the PLC backplane or an external supply.

• Load Resistance: The permissible range of resistance for the connected load (e.g., 0-500 $\Omega$ for current output).

Product Advantages

• Precision Control: High resolution (up to 16-bit) enables very fine and accurate control over actuators, improving process quality and efficiency.

• Flexibility: Support for multiple standard industrial output ranges (4-20 mA, 0-10 V) allows integration with virtually any industrial device.

• Robustness: Designed for high reliability in harsh industrial environments, with features like overcurrent protection and short-circuit protection.

• Ease of Integration: Seamlessly integrates into EATON's modular PLC racks and is configured using standard EATON programming software.

• Isolation: Electrical isolation minimizes the risk of ground loops and noise interference, ensuring signal integrity.

Precautions

• Wiring: Use properly shielded cables for analog signals and maintain separation from high-voltage or high-current power cables to prevent electromagnetic interference (EMI).

• Load Matching: Ensure the impedance of the connected field device (load) is within the module's specified range (e.g., a current output module cannot drive a load too high).

• Range Configuration: Verify that the output range configured in the PLC software (e.g., 4-20 mA) matches the physical configuration of the module and the required input range of the field device.

• Power-Up State: Be aware of the module's output state during PLC power-up or fault conditions to prevent unexpected actuator movements.

• Calibration: Regular calibration checks may be required to maintain specified accuracy over time and temperature variations.

Product Applications

EATON Analog Output Modules are fundamental to implementing regulatory control loops and modulation across numerous industrial sectors.

• HVAC and Building Automation: Modulating control of dampers, valves, and fan speeds in air handling units (AHUs) to maintain precise temperature and pressure.

• Process Control: Controlling the flow of liquids or gases using proportional valves, controlling the speed of metering pumps, or setting the setpoint for a proportional-integral-derivative (PID) loop.

• Motor Control: Providing the speed reference signal (e.g., 0-10 V) to Variable Frequency Drives (VFDs) to precisely control motor speed for conveyors, pumps, and fans.

• Pulp and Paper / Chemical: Regulating chemical dosing, temperature control in reactors, and control of level in tanks and vessels.

• Test and Measurement: Providing analog signals for stimulus generation in automated testing systems.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.