{"product_id":"allen-bradley-1746-no4v-industrial-automation-module-heavy-duty","title":"Allen-Bradley 1746-NO4V Industrial Automation Module - Heavy-Duty","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1746-NO4V is a four-channel analog output module designed for the SLC 500 programmable logic controller (PLC) platform. It delivers precise voltage signals ranging from -10 to +10 VDC, making it an essential component for applications that require accurate analog control, such as valve positioning, variable speed drive references, and process setpoint control. As part of the Allen-Bradley SLC 500 family, the 1746-NO4V integrates seamlessly into both fixed and modular SLC 500 chassis, providing reliable, repeatable performance in demanding industrial environments.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eBelow are the key technical specifications for the Allen-Bradley 1746-NO4V, sourced directly from the manufacturer's documentation.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number \/ Catalog No.\u003c\/td\u003e\n\u003ctd\u003e1746-NO4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e-10 to +10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull Scale Output\u003c\/td\u003e\n\u003ctd\u003e10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e14 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Method\u003c\/td\u003e\n\u003ctd\u003eR-2R Ladder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Output Coding\u003c\/td\u003e\n\u003ctd\u003e-32,768 to +32,764\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Time\u003c\/td\u003e\n\u003ctd\u003e512 microseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Response\u003c\/td\u003e\n\u003ctd\u003e2.5 milliseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5 Volts)\u003c\/td\u003e\n\u003ctd\u003e55 milliamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24 Volts)\u003c\/td\u003e\n\u003ctd\u003e145 milliamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicators\u003c\/td\u003e\n\u003ctd\u003eLEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Operating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degrees Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e10662073735929\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour Isolated Outputs:\u003c\/strong\u003e The 1746-NO4V provides four independent voltage outputs, allowing you to control multiple devices from a single module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Resolution:\u003c\/strong\u003e With 14-bit resolution, the module delivers fine control granularity, ensuring precise analog output for demanding applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Update Time:\u003c\/strong\u003e A 512-microsecond update time ensures responsive performance, critical for real-time control loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Design:\u003c\/strong\u003e The module operates reliably in ambient temperatures from 0 to 60 °C, making it suitable for harsh industrial settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Indicators:\u003c\/strong\u003e Front-panel LEDs provide immediate status feedback, simplifying diagnostics and troubleshooting.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReal-World Applications\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1746-NO4V is widely used in manufacturing, process control, and material handling systems. Common applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePID Loop Control:\u003c\/strong\u003e Assign the analog output to a PID controller output to precisely regulate temperature, pressure, or flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Speed Reference:\u003c\/strong\u003e Provide a -10 to +10 VDC signal to variable frequency drives (VFDs) for accurate speed control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Positioning:\u003c\/strong\u003e Drive electro-pneumatic or electro-hydraulic positioners in process lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Re-transmission:\u003c\/strong\u003e Send analog signals to recorders, SCADA systems, or other monitoring devices for data logging and analysis.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eProper installation is critical for optimal performance. Follow these guidelines when mounting the 1746-NO4V:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMount the module in a 1746 chassis, preferably away from high-voltage AC wiring and the system power supply to minimize electrical noise.\u003c\/li\u003e\n\u003cli\u003eFor ambient temperature considerations, install the module in the chassis nearest to the enclosure bottom.\u003c\/li\u003e\n\u003cli\u003eUse the removable terminal block (RTB) for wiring. Recommended wire size is #14 AWG maximum, and no more than two wires should be terminated in the same terminal.\u003c\/li\u003e\n\u003cli\u003eIf using an external 24 VDC power supply, activate SW1 external. Alternatively, if backplane power is sufficient, you can use it as the power source.\u003c\/li\u003e\n\u003cli\u003eNever remove the module while power is applied. Always power down before installation or removal to prevent electrical arcs and damage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eTo ensure long-term reliability, follow these maintenance practices:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePeriodically inspect the terminal block connections for tightness and signs of corrosion.\u003c\/li\u003e\n\u003cli\u003eKeep the module clean and free from dust and debris that could affect heat dissipation.\u003c\/li\u003e\n\u003cli\u003eMonitor the ambient temperature to ensure it stays within the 0 to 60 °C operating range.\u003c\/li\u003e\n\u003cli\u003eCheck the LED indicators for normal status; any unexpected behavior may indicate a wiring or configuration issue.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBy following these simple steps, you can maximize the service life of your 1746-NO4V and reduce unplanned downtime.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1746-NO4V is designed for the SLC 500 series of programmable logic controllers. It is compatible with both fixed and modular SLC 500 hardware. The module communicates with the CPU over the backplane, and its output data is updated every 512 microseconds. It uses a 16-bit two's complement binary communication format, ensuring straightforward integration with existing SLC 500 programs.\u003c\/p\u003e\u003ch2\u003eBuying Guide \u0026amp; Selection Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the Allen-Bradley 1746-NO4V, verify that your system has an available slot in the SLC 500 chassis and that the backplane current requirements (55 mA at 5 VDC, 145 mA at 24 VDC) are within your power supply capacity. PLC Source PRO offers genuine Allen-Bradley 1746-NO4V modules with fast shipping and competitive pricing. When ordering, confirm the part number and check for any applicable accessories, such as spare terminal blocks or wiring kits, to ensure you have everything needed for installation.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44434698993763,"sku":"1746-NO4V","price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1746-A13_3__E5_89_AF_E6_9C_AC_a8a8869e-de6d-46b9-bfc0-3348880a89dd.jpg?v=1785769054","url":"https:\/\/www.plcsourcepro.com\/ar\/products\/allen-bradley-1746-no4v-industrial-automation-module-heavy-duty","provider":"PLC Source PRO","version":"1.0","type":"link"}