{"product_id":"beckhoff-el5151-0021-ethercat-terminal-1-channel-incremental-encoder-interface","title":"Beckhoff EL5151-0021 EtherCAT Terminal 1-Channel Incremental Encoder Interface","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eProcessing 24 V HTL encoder signals with absolute precision, the \u003cstrong\u003eBeckhoff EL5151-0021\u003c\/strong\u003e serves as a high-performance \u003cstrong\u003eincremental encoder interface\u003c\/strong\u003e within the modular EtherCAT Terminal system. This single-channel \u003cstrong\u003eEtherCAT Terminal\u003c\/strong\u003e is specifically engineered to interface directly with incremental encoders, enabling accurate position and velocity tracking in dynamic industrial automation systems. By utilizing phase-shifted signals, the module handles complex motion profiles with ease.\u003c\/p\u003e\n\n\u003cp\u003eThe unit features integrated latch and gate inputs for rapid registration of encoder values based on external hardware events. Additionally, a dedicated 24 V DC digital output is available, permitting onboard hardware-level comparison and workpiece measurement functions. Its robust design, status LEDs, and compact form factor make it an essential component for high-reliability machine controls requiring rapid I\/O processing.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-channel interface optimized for 24 V DC HTL incremental encoders\u003c\/li\u003e\n  \u003cli\u003eSupports 4-fold quadrature decoder evaluation for maximum positioning resolution\u003c\/li\u003e\n  \u003cli\u003eIntegrated 24 V DC latch input for high-speed hardware-triggered position capture\u003c\/li\u003e\n  \u003cli\u003eOne parameterizable 24 V DC digital output (0.5 A) with high-speed compare functionality\u003c\/li\u003e\n  \u003cli\u003eCompact 12 mm DIN rail housing with integrated signal diagnostics and LED status indicators\u003c\/li\u003e\n  \u003cli\u003eSimple, tool-free wiring using spring-actuated cage-clamp connection technology\u003c\/li\u003e\n  \u003cli\u003eDirect integration into TwinCAT and compatibility with standardized EtherCAT networks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePrecision positioning and speed measurement in material handling systems\u003c\/li\u003e\n  \u003cli\u003eDynamic workpiece and product length measurement in packaging machines\u003c\/li\u003e\n  \u003cli\u003eClosed-loop velocity feedback for specialized assembly and conveyor lines\u003c\/li\u003e\n  \u003cli\u003eInterfacing rotary encoders with motion controllers in manufacturing processes\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\u003eBeckhoff\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eEL5151-0021\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eEtherCAT Terminal\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eNumber of Channels\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eTechnology\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eIncremental encoder interface (HTL, 24 V DC)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEncoder Connection\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1 x A, B, C (24 V DC, single-ended, EN 61131-2, Type 1)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInput Voltage Levels\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\"0\": less than 5 V DC, \"1\": greater than 15 V DC (typ. 5 mA)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eAdditional Inputs\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1 x Latch input (24 V DC)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eAdditional Outputs\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1 x Digital output (24 V DC, 0.5 A)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEncoder Operating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e24 V DC (-15% \/ +20%, generated from the 24 V DC power contacts)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCounter Range\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1 x 32 bit\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eLimit Frequency\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e400,000 increments\/s (with 4-fold evaluation), equivalent to 100 kHz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eQuadrature Decoder\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e4-fold evaluation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e24 V DC (-15% \/ +20%)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCurrent Consumption (Power Contacts)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003etyp. 100 mA + load\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax. Current Load Power Contacts\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e10 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSpecial Features\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eLatch function, parameterizable output 24 V DC (compare function), workpiece measurement\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOperating 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\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e-25 to +85 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e95%, no condensation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVibration and Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEMC Immunity and Emission\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003ePolycarbonate\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e35 mm DIN rail (EN 60715) with locking tab\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSide-by-Side Mounting\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eDouble slot and key connection\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWiring Connection\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSpring actuation by screwdriver\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSolid\/Stranded Wire Connection Cross-Section\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.08 to 2.5 mm² (AWG 28...14)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eFerrule Wire Connection Cross-Section\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.14 to 1.5 mm² (AWG 26...16)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStripping Length\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e8 to 9 mm\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\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eapprox. 50 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMount the module vertically on a standard 35 mm DIN rail conforming to EN 60715. Ensure the locking tab engages securely.\u003c\/li\u003e\n  \u003cli\u003eEnsure that power contacts are clean and correctly aligned prior to joining adjacent terminals.\u003c\/li\u003e\n  \u003cli\u003eStrip wiring to the specified length of 8 to 9 mm to prevent exposed conductors or loose connections inside the spring clamp.\u003c\/li\u003e\n  \u003cli\u003eEnsure operating environment conforms to IP20 rating; protect from conductive dust, moisture, and corrosive atmospheric gases.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCE\u003c\/li\u003e\n  \u003cli\u003eUL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106502861163,"sku":"EL5151-0021","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el5151-0021-huhmrglen0c.png?v=1776244539","url":"https:\/\/www.plcprotech.com\/tr\/products\/beckhoff-el5151-0021-ethercat-terminal-1-channel-incremental-encoder-interface","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}