{"product_id":"omron-cj1w-ct021-cj1-series-high-speed-counter-unit","title":"Omron CJ1W-CT021 CJ1 Series High-speed Counter Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eTo address demanding industrial applications requiring precise position and speed tracking, the \u003cstrong\u003eCJ1W-CT021\u003c\/strong\u003e high-speed counter module offers high-performance pulse detection for Omron CJ-series and NJ-series PLC systems. This module is designed to interface directly with incremental rotary encoders or linear scales, processing fast input pulses independently of the PLC CPU cycle time.\u003c\/p\u003e\n\n\u003cp\u003eThe unit features dual independent counting channels capable of handling high-frequency signals. It processes count operations, frequency measurement, and rotational speed calculation directly on-board, ensuring deterministic control for motion tracking, packaging machinery, and positioning tasks.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDual independent high-speed counter channels.\u003c\/li\u003e\n  \u003cli\u003eAccepts input pulse frequencies up to 500 kHz for high-resolution encoder feedback.\u003c\/li\u003e\n  \u003cli\u003eFast response time of 0.5 ms for rapid output activation based on counter comparison values.\u003c\/li\u003e\n  \u003cli\u003eDirect integration into Omron CJ1 and NJ series controller backplanes.\u003c\/li\u003e\n  \u003cli\u003eLow internal power consumption of 280 mA at 5 VDC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRotary encoder interface for servo and stepper positioning systems.\u003c\/li\u003e\n  \u003cli\u003eWeb tensioning and material length measurement in packaging and printing lines.\u003c\/li\u003e\n  \u003cli\u003eCut-to-length and flying shear control.\u003c\/li\u003e\n  \u003cli\u003eHigh-accuracy speed monitoring in material handling and conveyor networks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eOmron\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePart Number \/ Model\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eCJ1W-CT021\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eHigh-speed Counter Unit\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eNumber of Counters\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMaximum Input Frequency\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e500 kHz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMaximum Response Time\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.5 ms\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInternal Current Consumption\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e280 mA (at 5 VDC)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMaximum Current Consumption\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e370 mA (at 5 VDC)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eAmbient Operating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e31 mm x 90 mm x 65 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.1 kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cp\u003eWhen installing the counter unit, ensure it is locked securely onto the CJ1\/NJ bus connector. To prevent electrical noise interference on high-frequency signals, always use shielded twisted-pair cabling for all encoder connections and ensure the shield is grounded at the PLC end. Route signal lines away from high-voltage AC power lines and variable frequency drives.\u003c\/p\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077935391083,"sku":"CJ1W-CT021","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/cj1w-ct021-mkjsz5cghex.png?v=1775733498","url":"https:\/\/www.plcprotech.com\/de\/products\/omron-cj1w-ct021-cj1-series-high-speed-counter-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}