{"product_id":"beckhoff-el2545-ethercat-terminal-2-channel-pulse-width-current-terminal","title":"Beckhoff EL2545 EtherCAT Terminal 2-Channel Pulse Width Current Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eIntegrating directly into the EtherCAT I\/O architecture, the \u003cstrong\u003eBeckhoff EL2545\u003c\/strong\u003e is a high-precision 2-channel pulse width current terminal engineered for the dynamic control of inductive loads up to 50 V DC. Operating with an output current of \u003cstrong\u003e±3.5 A per channel\u003c\/strong\u003e, this terminal incorporates integrated \u003cstrong\u003eLVDT (Linear Variable Differential Transformer) feedback\u003c\/strong\u003e to facilitate advanced closed-loop current control. The module operates with a default \u003cstrong\u003e32 kHz PWM clock frequency\u003c\/strong\u003e and a 12-bit resolution, providing stable, ripple-free current regulation for proportional valves, small DC motors, and specialized hydraulic or pneumatic actuators. Full short-circuit protection, thermal-overload safeguarding, and EtherCAT Distributed Clocks support make it highly reliable for demanding positioning tasks.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Channel Performance:\u003c\/strong\u003e Two independently controllable PWM channels featuring push-pull outputs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent-Controlled Outputs:\u003c\/strong\u003e Precise control with a duty factor ranging from 0% to 100% at a high-resolution 12-bit rating.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLVDT Interface Feedback:\u003c\/strong\u003e Supports real-time position tracking and enhanced error detection for proportional actuator systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDistributed Clocks (DC):\u003c\/strong\u003e Hardware-level synchronization enables microsecond-level alignment across the entire EtherCAT segment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Electrical Protection:\u003c\/strong\u003e Fully short-circuit proof with built-in thermal overload protection and reverse-voltage safeguarding.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eE-Bus Integration:\u003c\/strong\u003e Draws a typical current of 180 mA directly from the E-bus, reducing external wiring complexity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProportional Valve Control:\u003c\/strong\u003e Highly accurate current sourcing for hydraulic directional and pressure control valves.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePneumatic Positioning Systems:\u003c\/strong\u003e Closed-loop control utilizing LVDT feedback for dynamic cylinder stroke adjustments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision DC Motor Driving:\u003c\/strong\u003e Direct low-voltage DC motor actuation requiring strict torque and current limiting.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTest Bench Automation:\u003c\/strong\u003e Dynamic load simulation and micro-actuator testing in research and development setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eBeckhoff Automation GmbH \u0026amp; Co. KG\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eModel Identifier\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eEL2545\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eModule Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2-Channel Pulse Width Current Terminal with LVDT Feedback\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eOutput Configuration\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2 x PWM outputs, push-pull\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNominal Operating Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e8 to 50 V DC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eMax. Continuous Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e±3.5 A per channel (short-circuit and thermal-overload proof)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInductive Load Compatibility\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e\u0026gt; 1 mH\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003ePWM Carrier Frequency\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e32 kHz (configurable default parameters)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eDuty Cycle Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0 to 100 % (current-controlled)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e12 bit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eE-Bus Current Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eTypical 180 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eAuxiliary Supply Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eTypical 10 mA (24 V DC via power contacts)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eElectrical Isolation\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e500 V (E-bus \/ field potential)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eDistributed Clocks\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSupported, high precision\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eOperating Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0 to +55 degC (no condensation)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eIngress Protection Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eIP 20\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eGermany\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.05 kg (50 grams)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1.00 kg (packaging-inclusive)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eDimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eField Engineering \u0026amp; Integration Insights\u003c\/h3\u003e\n\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe EL2545 EtherCAT terminal is standardly interchangeable with the \u003cstrong\u003eES2545\u003c\/strong\u003e version, which features pluggable wiring connections for easier maintenance-level swapping in high-vibration applications. Direct firmware compatibility is maintained across all modern TwinCAT 2 and TwinCAT 3 systems. Ensure you import the corresponding XML device description (ESI) file into your controller configuration to correctly map the 48-bit process image (2 x 16-bit process data, 2 x 8-bit control\/status words).\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen utilizing the terminal at maximum output capacity (near ±3.5 A per channel), ambient cabinet temperature profile monitoring is vital. Ensure there is adequate thermal spacing if mounting adjacent to high-dissipation modules. Note that the connected load must be highly inductive (\u0026gt; 1 mH); attempting to drive purely resistive loads at low duty cycles may result in unstable current regulation loop steps and current threshold warning faults in the TwinCAT diagnostics buffer.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Calibration Details\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eSince the EL2545 uses LVDT sensors for position feedback, standard analog routing rules apply. Keep LVDT signal feedback wiring completely separated from the high-power 32 kHz PWM lines to prevent cross-talk and high-frequency EMI infiltration. Always use shielded, twisted-pair cabling for feedback runs and ground the shields directly at the DIN rail grounding bus terminal immediately preceding the module insertion slot.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Field Wiring Guidelines\u003c\/h3\u003e\n\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 5px;\"\u003eCRITICAL FIELD WARNING\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate all electrical power sources—both the auxiliary 24 V DC power contact supply and the high-voltage 50 V DC load bus—prior to terminal insertion, removal, or manual wiring adjustments. Physical hot-swapping or handling under loaded conditions may cause inductive kickback damage to internal push-pull output circuits, leading to permanent hardware failure.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003ePower down the main control cabinet and check the bus segment for residual DC potentials using an calibrated digital multimeter.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eAlign the EL2545 module on the DIN rail (EN 60715) and lock it firmly into position until a solid mechanical snap is heard, establishing solid E-bus continuity.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eTerminate all signal and power connections using solid wire or ferruled strands. Connect LVDT feedback channels strictly according to the specified wiring system diagram.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eRestore power and run a hardware scan in TwinCAT to configure the PDO mapping and verify continuous communication status.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106469437803,"sku":"EL2545","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el2545-ccup4yxbfm0.png?v=1776244406","url":"https:\/\/www.plcprotech.com\/tr\/products\/beckhoff-el2545-ethercat-terminal-2-channel-pulse-width-current-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}