{"product_id":"new-1pc-keyence-fs-n11qn-fiber-optic-sensor","title":"Keyence FS-N11QN Fiber Optic Sensor","description":"\u003cdiv class=\"koeed-product-page\" style=\"font-family: 'Segoe UI', Arial, sans-serif; color: #333; line-height: 1.6;\"\u003e\n  \n  \u003c!-- SEO Introduction --\u003e\n  \u003csection class=\"seo-intro\"\u003e\n    \u003ch2 style=\"color: #0056b3; border-bottom: 2px solid #16c8c8; padding-bottom: 8px;\"\u003e\n      Keyence FS-N11QN Digital Fiber Optic Sensor | NEO Series High-Speed PNP Output\n    \u003c\/h2\u003e\n    \u003cp\u003e\n      The \u003cstrong\u003eKeyence FS-N11QN\u003c\/strong\u003e is a high-performance digital fiber optic amplifier from the acclaimed \u003cstrong\u003eNEO Series\u003c\/strong\u003e. Specifically designed for precision automation, this \u003cstrong\u003ePNP output\u003c\/strong\u003e sensor features a dual digital display (red\/green) for real-time monitoring of signal intensity and threshold levels. With its ultra-fast response time and \u003cstrong\u003eM8 4-pin connector\u003c\/strong\u003e, the FS-N11QN is the industry standard for transparent object detection, high-speed counting, and small part positioning in rugged industrial environments.\n    \u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- Technical Specifications --\u003e\n  \u003csection class=\"specs-table\" style=\"margin-top: 30px;\"\u003e\n    \u003ch3 style=\"color: #0056b3;\"\u003eTechnical Specifications\u003c\/h3\u003e\n    \u003cdiv style=\"overflow-x: auto;\"\u003e\n      \u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 600px;\"\u003e\n        \u003cthead\u003e\n          \u003ctr style=\"background-color: #16c8c8; color: #fff;\"\u003e\n            \u003cth style=\"padding: 12px; text-align: left; border: 1px solid #ddd;\"\u003eAttribute\u003c\/th\u003e\n            \u003cth style=\"padding: 12px; text-align: left; border: 1px solid #ddd;\"\u003eDetails\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eControl Output\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePNP Open Collector, Max. 100 mA\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #fafafa;\"\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eConnection Type\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eM8 4-pin Connector\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eResponse Time\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e50 µs (HSP) \/ 250 µs (FINE) \/ 1 ms (TURBO)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #fafafa;\"\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eLight Source\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eRed, 4-element LED (Wavelength: 660 nm)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003ePower Supply\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e12 to 24 VDC ±10%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color: #fafafa;\"\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eProtection Circuit\u003c\/td\u003e\n            \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eReverse polarity, Overcurrent, Surge absorber\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- Application \u0026 Reliability --\u003e\n  \u003csection class=\"application\" style=\"margin-top: 30px;\"\u003e\n    \u003ch3 style=\"color: #0056b3;\"\u003eApplication \u0026amp; Industrial Reliability\u003c\/h3\u003e\n    \u003cp\u003e\n      The FS-N11QN excels in stability thanks to its \u003cstrong\u003eS-I-Core\u003c\/strong\u003e (Super-Integrated Core) technology, which compensates for LED aging and dust accumulation. In the \u003cstrong\u003ePackaging Industry\u003c\/strong\u003e, it is used with FU-series fiber units to detect clear films; in \u003cstrong\u003eElectronic Assembly\u003c\/strong\u003e, it ensures sub-millimeter precision in component orientation. Its 1-line set-up (Auto-Tune) significantly reduces downtime during product changeovers, making it a reliable backbone for high-speed PLC-controlled production lines.\n    \u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- Koeed B2B Tool: PNP Wiring \u0026 Mode Simulator --\u003e\n  \u003csection class=\"koeed-tool\" style=\"margin-top: 40px; border: 2px solid #16c8c8; padding: 20px; background-color: #fff;\"\u003e\n    \u003ch3 style=\"margin-top: 0; color: #16c8c8;\"\u003eKoeed FAE Tool: FS-N11QN Performance Simulator\u003c\/h3\u003e\n    \u003cp style=\"font-size: 0.9em; color: #666;\"\u003eSimulate detection stability and check the M8 PNP wiring diagram for PLC integration.\u003c\/p\u003e\n    \n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px;\"\u003e\n      \u003cdiv style=\"padding: 15px; background: #fafafa; border-radius: 4px;\"\u003e\n        \u003clabel style=\"font-weight: bold;\"\u003ePower Mode Select:\u003c\/label\u003e\u003cbr\u003e\n        \u003cselect id=\"modeSelect\" style=\"width: 100%; padding: 8px; margin-top: 5px; border: 1px solid #ccc;\"\u003e\n          \u003coption value=\"50\"\u003eHSP (Ultra High Speed - 50µs)\u003c\/option\u003e\n          \u003coption value=\"250\" selected\u003eFINE (Standard - 250µs)\u003c\/option\u003e\n          \u003coption value=\"1000\"\u003eTURBO (Long Range - 1ms)\u003c\/option\u003e\n          \u003coption value=\"4000\"\u003eSUPER (Max Stability - 4ms)\u003c\/option\u003e\n        \u003c\/select\u003e\n        \u003cdiv id=\"modeEffect\" style=\"margin-top: 10px; font-size: 0.85em; color: #0056b3;\"\u003e\u003c\/div\u003e\n      \u003c\/div\u003e\n      \n      \u003cdiv style=\"padding: 15px; background: #fafafa; border-radius: 4px;\"\u003e\n        \u003clabel style=\"font-weight: bold;\"\u003ePNP Wiring Guide (M8):\u003c\/label\u003e\n        \u003cul style=\"font-size: 0.85em; padding-left: 20px; margin-top: 5px;\"\u003e\n          \u003cli\u003ePin 1 (Brown): +24V DC\u003c\/li\u003e\n          \u003cli\u003ePin 2 (White): External Input\u003c\/li\u003e\n          \u003cli\u003ePin 3 (Blue): 0V (GND)\u003c\/li\u003e\n          \u003cli\u003ePin 4 (Black): \u003cstrong\u003eOutput (PNP Load)\u003c\/strong\u003e\n\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #000; color: #0f0; padding: 15px; border-radius: 5px; font-family: monospace; text-align: center;\"\u003e\n      \u003cdiv style=\"display: flex; justify-content: center; gap: 40px;\"\u003e\n        \u003cdiv\u003e\n\u003cspan style=\"color: #f00;\"\u003eSET\u003c\/span\u003e\u003cbr\u003e\u003cspan id=\"thresholdVal\" style=\"font-size: 1.5em;\"\u003e2000\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv\u003e\n\u003cspan style=\"color: #0f0;\"\u003eCUR\u003c\/span\u003e\u003cbr\u003e\u003cspan id=\"currentVal\" style=\"font-size: 1.5em;\"\u003e1850\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv id=\"statusIndicator\" style=\"margin-top: 10px; font-weight: bold; padding: 5px; background: #333;\"\u003eOUTPUT: OFF\u003c\/div\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv style=\"margin-top: 15px;\"\u003e\n      \u003clabel\u003eSimulate Target Distance (Light Intensity):\u003c\/label\u003e\n      \u003cinput type=\"range\" id=\"intensitySlider\" min=\"0\" max=\"4000\" value=\"1850\" style=\"width: 100%; accent-color: #16c8c8;\"\u003e\n    \u003c\/div\u003e\n\n    \u003cscript\u003e\n      const intensity = document.getElementById('intensitySlider');\n      const cur = document.getElementById('currentVal');\n      const status = document.getElementById('statusIndicator');\n      const mode = document.getElementById('modeSelect');\n      const modeEffect = document.getElementById('modeEffect');\n      const threshold = 2000;\n\n      function updateUI() {\n        cur.innerText = intensity.value;\n        if(parseInt(intensity.value) \u003e= threshold) {\n          status.innerText = \"OUTPUT: ON (PNP High)\";\n          status.style.color = \"#16c8c8\";\n          status.style.background = \"#114444\";\n        } else {\n          status.innerText = \"OUTPUT: OFF\";\n          status.style.color = \"#f00\";\n          status.style.background = \"#441111\";\n        }\n        \n        const m = mode.value;\n        let text = \"\";\n        if(m == \"50\") text = \"Best for: Rotary encoders, gear teeth detection.\";\n        if(m == \"250\") text = \"Best for: General conveyor belt positioning.\";\n        if(m == \"1000\") text = \"Best for: Dark\/Matte objects or long distances.\";\n        if(m == \"4000\") text = \"Best for: Harsh dust environments.\";\n        modeEffect.innerText = text;\n      }\n\n      intensity.oninput = updateUI;\n      mode.onchange = updateUI;\n      updateUI();\n    \u003c\/script\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- Troubleshooting FAQ --\u003e\n  \u003csection class=\"faq\" style=\"margin-top: 30px;\"\u003e\n    \u003ch3 style=\"color: #0056b3;\"\u003eField Service \u0026amp; Troubleshooting FAQ\u003c\/h3\u003e\n    \u003cdiv style=\"margin-bottom: 15px; border-left: 3px solid #16c8c8; padding-left: 15px;\"\u003e\n      \u003cstrong\u003eQ1: The display shows \"----\" or \"FULL\".\u003c\/strong\u003e\u003cbr\u003e\n      \u003cem\u003eFAE Suggestion:\u003c\/em\u003e This indicates saturation. The received light is too strong. Use the \u003cstrong\u003eAttenuation\u003c\/strong\u003e function or increase the distance between the fiber head and the target to bring the value into the measurable range (0-9999).\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin-bottom: 15px; border-left: 3px solid #16c8c8; padding-left: 15px;\"\u003e\n      \u003cstrong\u003eQ2: My PLC is not receiving a signal despite the \"Output\" LED being on.\u003c\/strong\u003e\u003cbr\u003e\n      \u003cem\u003eFAE Suggestion:\u003c\/em\u003e The FS-N11QN is a \u003cstrong\u003ePNP\u003c\/strong\u003e model. Ensure your PLC input card is wired for SINK (Common negative). Check if Pin 4 (Black) is correctly wired to the PLC input terminal and Pin 3 (Blue) is common with the PLC ground.\n    \u003c\/div\u003e\n    \u003cdiv style=\"margin-bottom: 15px; border-left: 3px solid #16c8c8; padding-left: 15px;\"\u003e\n      \u003cstrong\u003eQ3: The sensor triggers randomly due to nearby machines.\u003c\/strong\u003e\u003cbr\u003e\n      \u003cem\u003eFAE Suggestion:\u003c\/em\u003e Activate the \u003cstrong\u003eInterference Prevention\u003c\/strong\u003e function (available on the main unit) or switch the Power Mode to \u003cstrong\u003eTURBO\u003c\/strong\u003e or \u003cstrong\u003eSUPER\u003c\/strong\u003e to increase the digital filtering time.\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e","brand":"KEYENCE","offers":[{"title":"Default Title","offer_id":44306654331065,"sku":"165532632582","price":200.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8476\/7929\/files\/s-l1600_fcb6b341-c83d-40d3-b502-4bd2e0af6f3f.jpg?v=1723922989","url":"https:\/\/koeed.com\/es\/products\/new-1pc-keyence-fs-n11qn-fiber-optic-sensor","provider":"KOEED","version":"1.0","type":"link"}