{"product_id":"beckhoff-el2535-0002-ethercat-terminal-2-channel-pulse-width-current-terminal","title":"Beckhoff EL2535-0002 EtherCAT Terminal 2-channel Pulse Width Current Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eExecuting high-precision current regulation directly within the EtherCAT I\/O architecture, the \u003cstrong\u003eBeckhoff EL2535-0002\u003c\/strong\u003e serves as a dedicated 2-channel pulse width current terminal designed for 24 V DC systems. By utilizing advanced push-pull output technology, this terminal adjusts the output current value from zero up to the maximum load limit via current-controlled pulse width modulation of the supply voltage. Grounded in professional-grade design, the module features robust galvanic isolation from the internal E-bus to protect control-level electronics from field disturbances, while integrated diagnostic LEDs provide clear, real-time feedback for local status and wiring fault detection.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eDual-channel architecture supporting independent PWM current-controlled outputs.\u003c\/li\u003e\n  \u003cli\u003ePush-pull output stage configuration optimized for inductive and resistive loads.\u003c\/li\u003e\n  \u003cli\u003eFull electrical isolation between the E-bus and field potential up to 500 V.\u003c\/li\u003e\n  \u003cli\u003eOnboard diagnostic LEDs indicating signal state, load faults, and wiring conditions.\u003c\/li\u003e\n  \u003cli\u003eComprehensive protective circuitry preventing damage from overloads and short-circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eProportional valve control in hydraulic and pneumatic industrial machinery.\u003c\/li\u003e\n  \u003cli\u003eSpeed and torque modulation for low-power fractional horsepower DC motors.\u003c\/li\u003e\n  \u003cli\u003eThermoelectric cooler (Peltier element) current control in precision temperature chambers.\u003c\/li\u003e\n  \u003cli\u003eModulated power supply for industrial heating resistors and filament loads.\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d; text-align: left;\"\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; 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: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBeckhoff\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eEL2535-0002\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNumber of Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNominal Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24 V DC (-15 percent \/ +20 percent)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eConnection Technology\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePWM output, push-pull outputs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePWM Clock Frequency\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e30 kHz (default)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eDuty Cycle Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 to 100 percent (current-controlled)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e10 bit (internal PWM duty cycle)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eE-Bus Current Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eTypical 110 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eElectrical Isolation\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\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: 8px; font-weight: bold;\"\u003eControl Value Format\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e16-bit signed integer\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eWeight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0.05 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.15 kg;\"\u003e0.15 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e120 mm x 80 mm x 25 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d; text-align: left;\"\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eTerminal Contact Point\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eSignal Assignment\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eFunctional Details\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: 8px;\"\u003e1\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput 1 +\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePositive PWM Output Channel 1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e5\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput 1 -\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNegative PWM Output Channel 1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput 2 +\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePositive PWM Output Channel 2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e6\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput 2 -\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNegative PWM Output Channel 2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e+24 V DC\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eField Power Feed (Positive Potential)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e7\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e0 V\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eField Power Feed (Ground Potential)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShield\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eFunctional Earthing \/ Electromagnetic Shield\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e8\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShield\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eFunctional Earthing \/ Electromagnetic Shield\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe EL2535-0002 must be configured via TwinCAT System Manager using the correct XML Device Description (ESI) corresponding to the module's hardware revision. Ensure that the terminal's firmware matches the minimum requirements of your TwinCAT deployment to utilize all 16-bit register mapping functions seamlessly.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen switching highly inductive loads, such as large proportional valves, high back-EMF spikes can trigger the internal overcurrent or thermal shutdown mechanisms of the push-pull stages. To prevent nuisance tripping, engineers should verify that the internal clamping diode's energy dissipation capacity is not exceeded, or install external fast-recovery freewheeling diodes directly across the load terminals if duty cycles remain high at maximum current limits.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDue to the 30 kHz default switching frequency of the PWM outputs, the lines running to the load can act as active noise transmitters. It is highly recommended to run shielded, twisted-pair cabling for both output channels. Terminate the cable shields directly to contacts 4 or 8 on the terminal, and ensure a low-impedance ground connection is maintained on the DIN rail via a copper busbar or grounding terminal.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Prior to mounting, inserting, or removing any terminal block from the EtherCAT segment assembly, completely de-energize both the 24 V DC field power bus and the main E-bus power supplies. Failure to fully isolate all power sources can result in permanent optical or physical damage to the internal E-bus communication contacts.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; color: #2d3748;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 10px; font-weight: bold;\"\u003e1\u003c\/span\u003e\n    \u003cp style=\"margin: 0;\"\u003eAlign the terminal with the DIN rail (TS35) and slide it firmly into place until the locking mechanism clicks securely.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 10px; font-weight: bold;\"\u003e2\u003c\/span\u003e\n    \u003cp style=\"margin: 0;\"\u003ePush the adjacent terminal blocks together to ensure the side-mounted E-bus contacts establish continuous and reliable low-resistance connections.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 10px; font-weight: bold;\"\u003e3\u003c\/span\u003e\n    \u003cp style=\"margin: 0;\"\u003eUsing a standard flat-head screwdriver, insert the field wiring conductors into the push-in connection points according to the designated pinout configuration.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 10px; font-weight: bold;\"\u003e4\u003c\/span\u003e\n    \u003cp style=\"margin: 0;\"\u003eVerify correct grounding of the DIN rail to achieve optimal electromagnetic compatibility (EMC) and signal stability.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106429165931,"sku":"EL2535-0002","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el2535-0002-fboy0umbwo5.png?v=1776244403","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-el2535-0002-ethercat-terminal-2-channel-pulse-width-current-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}