{"product_id":"omron-nx-ad4603-nx-series-8-channel-voltage-analog-input-unit","title":"Omron NX-AD4603 NX Series 8-Channel Voltage Analog Input Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned for high-density data acquisition within the Sysmac automation platform, the \u003cstrong\u003eOmron NX-AD4603\u003c\/strong\u003e provides high-speed, single-ended analog voltage monitoring across eight independent channels. This high-resolution module integrates into the Omron NX-series I\/O system, offering seamless communication with Sysmac NJ\/NX controllers or industrial couplers. By converting analog physical inputs to precise digital values under a \u003cstrong\u003eFree-Run refreshing\u003c\/strong\u003e architecture, the Omron NX-AD4603 ensures reliable process tracking for complex industrial manufacturing environments.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Density 8-Point Layout:\u003c\/strong\u003e Houses eight single-ended input channels within a compact 12 mm width to optimize control cabinet space.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard Industrial Voltage Range:\u003c\/strong\u003e Accepts -10 V to +10 VDC inputs, supporting standard pressure, temperature, and flow transducers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Conversion Precision:\u003c\/strong\u003e Features 1\/8000 full-scale resolution, mapping analog inputs to a decimal digital scale of -4000 to 4000.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuous Free-Run Refreshing:\u003c\/strong\u003e Provides constant, asynchronous update cycles for applications where synchronization to the master PLC cycle is not strictly required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Input Protection:\u003c\/strong\u003e Built-in safeguards support an absolute maximum voltage rating of +\/-15 V to prevent damage from transient voltage surges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Sensor Machine Telemetry:\u003c\/strong\u003e Integrates arrayed displacement, pressure, and level sensors directly into the primary control network.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFactory Automation \u0026amp; Assembly:\u003c\/strong\u003e Monitors analog feedback from tooling actuators and automated clamping systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuous Process Monitoring:\u003c\/strong\u003e Captures high-frequency electrical feedback in packaging and material handling machines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eOmron\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eNX-AD4603\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eNumber of Inputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e8 points\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eInput Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSingle-ended input\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eInput Voltage Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e-10 to +10 VDC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eAbsolute Maximum Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e+\/-15 VDC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1\/8000 (Full Scale)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eDecimal Conversion Value\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e-4000 to 4000 (0 to 100%)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eOverall Accuracy (at 25 degC)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.2% (Full Scale)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eI\/O Refreshing Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eFree-Run refreshing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eInput Conversion Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e-5% to 105% (Full Scale)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eUnit Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.070 kg (70 grams)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.35 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe Omron NX-AD4603 is fully compatible with any NX-series EtherCAT Coupler Unit (such as the NX-ECC201\/ECC202) and EtherNet\/IP Coupler Units. It can also be directly mounted to the right of an NX1P2 CPU. Note that Sysmac Studio version 1.10 or higher is required for complete hardware configuration and calibration. If differential voltage inputs are required to isolate electrical signals across distant field sensors, consider the 2-point differential NX-AD2603 or the 4-point NX-AD3603.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eBecause this module utilizes a single-ended input design, all eight channels share a common internal ground connection. If your field transmitters reside at significantly different ground potentials, this shared reference can introduce ground loop noise, affecting reading accuracy or causing drift. In systems where sensor grounds cannot be equalized, install external signal isolators or transition to isolated differential input modules.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo prevent electromagnetic interference (EMI) from distorting low-level analog signals, always route input wiring away from high-voltage motor cables and variable frequency drive (VFD) output paths. Use shielded, twisted-pair cabling for all analog inputs, and ground the shielding foil at a single, solid earth point near the PLC chassis. Ensure the sensor voltage does not exceed the absolute limit of +\/-15 V, as sustained overvoltage will degrade the internal ADC multiplexer.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Prior to physical installation, mounting, or wiring modifications, isolate and de-energize all primary system power supplies. Confirm all residual charge has fully bled down. Failure to de-energize can damage sensitive internal CMOP logic or cause system communication faults on the NX-bus.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eAlign the guide connectors on the side of the NX-AD4603 with the adjacent NX unit on the DIN rail.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eSlide the module onto the DIN rail until the slide locking mechanism engages with an audible click.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eStrip field wiring to the specified length (8 to 10 mm) and insert directly into the screwless push-in connection terminals.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003ePower up the system bus and verify status via the LED indicators on the front face of the module.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077903868267,"sku":"NX-AD4603","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/nx-ad4603-mcgecd12htf.png?v=1775733961","url":"https:\/\/www.plcprotech.com\/products\/omron-nx-ad4603-nx-series-8-channel-voltage-analog-input-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}