{"product_id":"1794-ij2-allen-bradley-frequency-input-module-specs","title":"1794-IJ2 Allen-Bradley Frequency Input Module Specs","description":"\u003ch2\u003e\u003cstrong\u003e1794-IJ2 Frequency Input Module Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInput frequency range: \u003cspan style=\"color: #c0392b;\"\u003e1-32 kHz for sine wave\u003c\/span\u003e and 1-32 kHz for square wave signals.\u003c\/li\u003e\n\u003cli\u003eInput pulse width requirement: \u003cspan style=\"color: #c0392b;\"\u003e20 µs minimum\u003c\/span\u003e for reliable signal detection.\u003c\/li\u003e\n\u003cli\u003eRaw frequency value maximum: 32,767 or 3,276.7 depending on the selected range.\u003c\/li\u003e\n\u003cli\u003eExternal DC supply range: \u003cspan style=\"color: #c0392b;\"\u003e19.0 to 31.2V DC\u003c\/span\u003e (includes 5% AC ripple).\u003c\/li\u003e\n\u003cli\u003ePower dissipation: \u003cspan style=\"color: #c0392b;\"\u003e4.6W maximum at 31.2V DC\u003c\/span\u003e; thermal dissipation: 15.6 BTU\/hr maximum.\u003c\/li\u003e\n\u003cli\u003eFlexBus current draw: 30 mA at 5V DC for backplane communication.\u003c\/li\u003e\n\u003cli\u003eOutput specifications: two isolated outputs with \u003cspan style=\"color: #c0392b;\"\u003enominal 24V DC\u003c\/span\u003e, min 10V DC, max 31.2V DC.\u003c\/li\u003e\n\u003cli\u003eOutput on-state current: \u003cspan style=\"color: #c0392b;\"\u003e1.0A per channel maximum\u003c\/span\u003e, with 2A surge for 50 ms (repeatable every 2 seconds).\u003c\/li\u003e\n\u003cli\u003eOutput switching time: turn-on in 0.5 ms, turn-off in 1 ms when triggered by frequency or acceleration alarm.\u003c\/li\u003e\n\u003cli\u003eModule resolution range: \u003cspan style=\"color: #c0392b;\"\u003e0.01% to 0.00002%\u003c\/span\u003e corresponding to sample frequency from 2 to 1000 ms.\u003c\/li\u003e\n\u003cli\u003eSampling accuracy: ranges from \u003cspan style=\"color: #c0392b;\"\u003e+\/- 0.02% to +\/- 0.00004%\u003c\/span\u003e depending on sample rate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatible Hardware and Mounting\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003e1794-IJ2\u003c\/strong\u003e requires terminal base \u003cstrong\u003e1794-TB3G\u003c\/strong\u003e or \u003cstrong\u003e1794-TB3GS\u003c\/strong\u003e for operation.\u003c\/li\u003e\n\u003cli\u003eYou can mount this module on a \u003cspan style=\"color: #c0392b;\"\u003eDIN rail\u003c\/span\u003e using the \u003cstrong\u003e1794-NM1\u003c\/strong\u003e mounting kit.\u003c\/li\u003e\n\u003cli\u003eAlternatively, screw mounting is also possible for flexible installation needs.\u003c\/li\u003e\n\u003cli\u003eThe flex bus connector must insert fully into the terminal unit for proper communication.\u003c\/li\u003e\n\u003cli\u003eWire size depends on the installed terminal base; refer to the base manual for details.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEnvironmental and Operating Limits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating temperature range: \u003cspan style=\"color: #c0392b;\"\u003e0 to 55 degrees Celsius\u003c\/span\u003e for industrial environments.\u003c\/li\u003e\n\u003cli\u003eMaximum starting current: \u003cspan style=\"color: #c0392b;\"\u003e10 A\u003c\/span\u003e during initial power-up.\u003c\/li\u003e\n\u003cli\u003eThe module has electrical fusing on inputs and outputs to prevent damage during power interruptions.\u003c\/li\u003e\n\u003cli\u003eFront panel includes input indicators, output indicators, power status LED, and wire-off fault indicator.\u003c\/li\u003e\n\u003cli\u003eYou can write individual I\/O assignments on the insertable label for easy identification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Is the \u003cstrong\u003e1794-IJ2\u003c\/strong\u003e a brand new original module?\u003c\/strong\u003e\u003cbr\u003eA: Yes, we supply only brand new and original \u003cstrong\u003e1794-IJ2\u003c\/strong\u003e modules with factory seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What real stock do you have for the \u003cstrong\u003e1794-IJ2\u003c\/strong\u003e?\u003c\/strong\u003e\u003cbr\u003eA: We have many \u003cstrong\u003e1794-IJ2\u003c\/strong\u003e units in stock, ready to ship within 5 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Which carriers handle shipping?\u003c\/strong\u003e\u003cbr\u003eA: We use FedEx, UPS, and DHL for reliable and traceable delivery worldwide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Can I return the \u003cstrong\u003e1794-IJ2\u003c\/strong\u003e if it doesn't fit my system?\u003c\/strong\u003e\u003cbr\u003eA: Yes, we accept returns within 30 days, no restocking fee for unopened modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What terminal base works with the \u003cstrong\u003e1794-IJ2\u003c\/strong\u003e?\u003c\/strong\u003e\u003cbr\u003eA: You need the \u003cstrong\u003e1794-TB3G\u003c\/strong\u003e or \u003cstrong\u003e1794-TB3GS\u003c\/strong\u003e terminal base for this module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Does the \u003cstrong\u003e1794-IJ2\u003c\/strong\u003e support both sine and square wave inputs?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it accepts both sine wave and square wave from 1 to 32 kHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the minimum input pulse width required?\u003c\/strong\u003e\u003cbr\u003eA: The module requires a minimum input pulse width of 20 µs for proper detection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-top: 20px;\"\u003eFor inquiries, contact us at \u003ca style=\"color: #c0392b; text-decoration: underline;\" href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e or via WhatsApp at \u003ca style=\"color: #c0392b; text-decoration: underline;\" href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"margin-top: 10px;\"\u003ePartner: \u003ca style=\"color: #c0392b; text-decoration: underline;\" rel=\"noopener noreferrer\" href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003eNexAuto Technology Limited\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46418558091425,"sku":"1794-IJ2","price":225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/1794-IJ2.jpg?v=1778318354","url":"https:\/\/www.autonexcontrol.com\/products\/1794-ij2-allen-bradley-frequency-input-module-specs","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}