{"product_id":"omron-nx-ad3608-nx-series-analog-input-unit","title":"Omron NX-AD3608 NX Series Analog Input Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eFor high-speed, precise voltage data acquisition within Sysmac automation architectures, the Omron NX-AD3608 provides four channels of high-resolution differential analog inputs. This unit integrates seamlessly into the \u003cstrong\u003eNX-series I\/O system\u003c\/strong\u003e, offering an exceptional resolution of \u003cstrong\u003e1\/30000\u003c\/strong\u003e and an ultra-fast conversion speed of \u003cstrong\u003e10 microseconds per point\u003c\/strong\u003e. Designed to process voltage signals from -10 to +10 VDC, it supports both synchronous I\/O refreshing and free-run refreshing modes, ensuring precise synchronization with the host CPU or EtherCAT coupler unit. Secure, vibration-proof field wiring is achieved through the integrated 12-terminal screwless Push-In Plus terminal block.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eFour differential analog input channels dedicated to voltage signals.\u003c\/li\u003e\n  \u003cli\u003eFlexible voltage input range of -10 to +10 VDC with an input conversion range of -5% to 105%.\u003c\/li\u003e\n  \u003cli\u003eHigh-speed conversion cycle of 10 microseconds per point for highly dynamic processes.\u003c\/li\u003e\n  \u003cli\u003eSelectable synchronous I\/O refreshing and free-run refreshing to match system requirements.\u003c\/li\u003e\n  \u003cli\u003eTransformer and digital isolator isolation between the input channels and the internal NX bus.\u003c\/li\u003e\n  \u003cli\u003eToolless Push-In Plus (screwless clamping) 12-terminal block for rapid installation and wiring maintenance.\u003c\/li\u003e\n  \u003cli\u003eIntegrated TS status indicator for rapid local module diagnostics.\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: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eHigh-speed closed-loop tension and pressure control systems.\u003c\/li\u003e\n  \u003cli\u003eReal-time analog feedback monitoring in packaging and converting machinery.\u003c\/li\u003e\n  \u003cli\u003ePrecision position tracking using analog displacement sensors.\u003c\/li\u003e\n  \u003cli\u003eData acquisition setups requiring microsecond-level synchronization over EtherCAT networks.\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;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold; width: 30%;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eOmron\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel \/ Article Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNX-AD3608\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNX Series I\/O\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInput Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eAnalog Voltage\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNumber of Points\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4 points\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInput Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\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: 8px; font-weight: bold;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1\/30000\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eConversion Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e10 microseconds\/point\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInput Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eDifferential\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInput Impedance\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1 MOhm minimum\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInput Conversion Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\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: 8px; font-weight: bold;\"\u003eAbsolute Maximum Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e+\/-15 V\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOverall Accuracy (25 degC)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e+\/-0.1% (full scale)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOverall Accuracy (0 to 55 degC)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e+\/-0.2% (full scale)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eI\/O Refreshing Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eSwitching synchronous I\/O refreshing and Free-Run refreshing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eIsolation Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBetween input and NX bus: Power = Transformer, Signal = Digital isolator (no isolation between input channels)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInsulation Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e20 MOhm minimum between isolated circuits (at 100 VDC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eDielectric Strength\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e510 VAC between isolated circuits for 1 minute (leakage current 5 mA max)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNX Unit Power Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1.45 W max (connected to CPU or CCU); 1.10 W max (connected to Coupler)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eExternal Terminals\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eScrewless clamping terminal block (12 terminals)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e12 mm x 100 mm x 71 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0.07 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 1.0 kg;\"\u003e1.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2d3748; text-align: left;\"\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold; width: 25%;\"\u003eTerminal\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold; width: 25%;\"\u003eSignal Name\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold; width: 25%;\"\u003eTerminal\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold; width: 25%;\"\u003eSignal Name\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: 8px; font-weight: bold;\"\u003eA1\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eV1+ (Input Voltage 1 +)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB1\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eV3+ (Input Voltage 3 +)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eV1- (Input Voltage 1 -)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eV3- (Input Voltage 3 -)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eV2+ (Input Voltage 2 +)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eV4+ (Input Voltage 4 +)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA4\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eV2- (Input Voltage 2 -)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB4\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eV4- (Input Voltage 4 -)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA5\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNC (Not Connected)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB5\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNC (Not Connected)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eA6\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNC (Not Connected)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eB6\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNC (Not Connected)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe NX-AD3608 is part of the Omron Sysmac ecosystem. When planning migrations or additions, ensure your NX1P2, NX102, or NJ-series CPU unit is running compatible firmware supporting high-speed synchronous I\/O. Note that synchronous refreshing is only functional when this module is mounted adjacent to a CPU or an EtherCAT coupler (such as the NX-ECC203) that natively supports distributed clocks (DC).\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 differential input design without inter-channel isolation, all negative terminal connections (V1- through V4-) must remain within the common-mode voltage range. If there is a high potential difference between your signal source grounds, ground-loop current will flow, causing severe measurement errors or eventual hardware failure. Ensure that the signal sources are either completely floating or tied to a single common reference point before entering the module.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo protect the highly sensitive 1\/30000 resolution, always use high-quality shielded twisted-pair (STP) cabling for all analog lines. Ground the cable shields at a single point on the functional ground bar of your control panel. For maximum noise immunity, route the analog signal cables in a dedicated wire duct isolated from three-phase power lines and variable frequency drive (VFD) output cables.\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;\"\u003e\n  \u003cp style=\"color: #9b2c2c; font-weight: bold; margin: 0 0 0.5rem 0;\"\u003eCRITICAL WARNING\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eDisconnect all power sources to the NX Unit, CPU Unit, and any external I\/O power lines before installing, removing, or wiring the module. Failing to completely de-energize the assembly can cause immediate equipment damage or unpredictable system behavior during commissioning.\u003c\/p\u003e\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; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eMount the NX-AD3608 onto the DIN rail by sliding the unit's guide hook firmly into place until you hear a solid click indicating that the slide lock has engaged.\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; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003ePush the terminal block straight onto the front of the module until it locks securely into position. Check the mechanical alignment of the keys.\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; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003ePrepare your solid wire or ferruled stranded wire, then insert it straight into the terminal hole. No screwdriver is required for standard Push-In Plus terminal operation.\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; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eVerify connection status using the Sysmac Studio software, observing the TS indicator LED state. A solid green light indicates normal communication and module health.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077908881771,"sku":"NX-AD3608","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/nx-ad3608-ldsaed2mfri.png?v=1775733956","url":"https:\/\/www.plcprotech.com\/fa\/products\/omron-nx-ad3608-nx-series-analog-input-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}