{"product_id":"allen-bradley-1794-id2-flex-i-o-incremental-encoder-module","title":"Allen-Bradley 1794-ID2 FLEX I\/O Incremental Encoder Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley\u003c\/strong\u003e \u003cstrong\u003e1794-ID2\u003c\/strong\u003e is a 2-channel incremental encoder module belonging to the FLEX I\/O distributed automation series. It interfaces quadrature encoders and high-speed pulse transmitters directly with ControlLogix, CompactLogix, or PLC-5 controllers over a FLEX I\/O backplane network. The module provides high-speed pulse processing, positioning measurement, and frequency tracking capabilities with independent differential and single-ended signal evaluation.\u003c\/p\u003e\n\u003ch3\u003eQuadrature Signal Processing and Inputs\u003c\/h3\u003e\n\u003cp\u003eThe 1794-ID2 module features two independent counting channels, each containing four optocoupled input points. Channels support complementary (+ve and -ve differential) and non-complementary pulse signals for A, B, Z (marker\/index), and Gate control functions. The module evaluates 1 or 2 pulse trains and processes input signal frequencies up to 100 kHz.\u003c\/p\u003e\n\u003ch3\u003eBackplane Integration and Mechanical Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for DIN rail or panel mounting, the module attaches to a standard FLEX I\/O terminal base unit, such as the 1794-TB2, 1794-TB3, or 1794-TB3G. Field signal connections are made at the terminal base, allowing removal and insertion under system power (RIUP) without disrupting field wiring. Module status and channel activity are indicated by 13 diagnostic LEDs located on the front panel.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1794-ID2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eIncremental Encoder Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Line\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e2 independent channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs per Counter\u003c\/td\u003e\n\u003ctd\u003e4 optocoupled inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e12 V DC to 24 V DC (10 V DC to 26.4 V DC max.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Voltage\u003c\/td\u003e\n\u003ctd\u003e6 V DC min. to 26.4 V DC max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Voltage\u003c\/td\u003e\n\u003ctd\u003e3 V DC max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Current\u003c\/td\u003e\n\u003ctd\u003e3 mA @ 6 V DC min. to 15 mA @ 24 V DC max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Counting Frequency\u003c\/td\u003e\n\u003ctd\u003e100 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexbus Current\u003c\/td\u003e\n\u003ctd\u003e5 mA @ 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e17.1 BTU\/hr @ 26.4 V DC max. (5.0 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e500 V AC continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indicators\u003c\/td\u003e\n\u003ctd\u003e1 green\/red module status LED, 12 yellow channel status LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e46 x 94 x 53 mm (1.8 x 3.7 x 2.1 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.28 kg (0.63 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Requirements\u003c\/h3\u003e\n\u003cp\u003eMount the 1794-ID2 module onto an approved 1794 terminal base unit prior to applying system logic power. Turn off field-side supply power during insertion or removal to prevent electric arcing. Ensure proper grounding practices on signal shield lines to prevent high-frequency noise interference on encoder pulse channels.\u003c\/p\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: What terminal bases are compatible with the Allen-Bradley 1794-ID2 module?A: The 1794-ID2 module is compatible with 3-wire and 4-wire FLEX I\/O terminal base units, including models 1794-TB2, 1794-TB3, 1794-TB3G, 1794-TBN, and 1794-TBNF.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1794-ID2 accept single-ended signal inputs? A: Yes, each counter channel can be wired to evaluate non-complementary single-ended signals as well as complementary differential pulse streams.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67048582840435,"sku":"1794-ID2","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/1794-OB16_3.jpg?v=1793257536","url":"https:\/\/www.dcssupplier.com\/products\/allen-bradley-1794-id2-flex-i-o-incremental-encoder-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}