{"product_id":"digital-output-modules-yokogawa-sed4d-11-prosafe-rs","title":"Digital Output Modules | Yokogawa SED4D-11 ProSafe-RS","description":"\u003ch2\u003eYokogawa SED4D-11 ProSafe-RS Digital Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SED4D-11\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSED4D\u003c\/strong\u003e Digital Output Module, operates as a dedicated hardware component for safety-critical switching and load execution within \u003cstrong\u003eProSafe-RS\u003c\/strong\u003e Safety Instrumented System platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware 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\u003eSED4D-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Load Current per Channel\u003c\/td\u003e\n\u003ctd\u003e2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDerating Coefficients\u003c\/td\u003e\n\u003ctd\u003eA = 5, B = 0 (Single); A = 10, B = 0 (Dual redundant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e300 mA at 5 VDC, 150 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length Limits\u003c\/td\u003e\n\u003ctd\u003e1694 m (at 0.1 A), 404 m (at 0.2 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Capacitance\u003c\/td\u003e\n\u003ctd\u003e60 pF\/m (AKB331 cable), 50 pF\/m (User cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eModule isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eDiagnostic pulse testing supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Electrical Isolation and Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eThe hardware architecture utilizes galvanic module-level isolation to prevent common-mode voltage transients from propagating across the internal system backplane. Signal transmission over extended field wiring distances is governed by strict capacitance thresholds (60 pF\/m via standard AKB331 media or 50 pF\/m via user-specified cabling). Voltage drops across long runs are managed by explicit load-to-distance limits, where the maximum permissible field loop length scales from 1694 m at a 0.1 A current draw down to 404 m when driving 0.2 A loads. Diagnostic pulse testing executes automated online safety validations, emitting brief sub-millisecond test pulses to verify loop continuity and solid-state switch integrity without interrupting the final control element status.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How do the derating coefficients A and B affect the operational thermal envelope?\u003c\/p\u003e\n\u003cp\u003eA: The coefficients A and B define the internal heat dissipation limits based on layout density. Users must calculate the total allowable active channels at elevated ambient temperatures using the specific configuration matrix (A = 5 for single architectures, A = 10 for dual-redundant architectures) to prevent thermal overload below the 60 degC ambient limit.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module tolerate field wiring short circuits?\u003c\/p\u003e\n\u003cp\u003eA: The integrated diagnostic pulse testing detects overcurrent and short-circuit faults. However, external current-limiting fuses must be provisioned matching the 2 A maximum per-channel rating to protect the solid-state output circuitry from physical thermal degradation during sustained fault conditions.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Routing Constraints:\u003c\/strong\u003e Field wiring loops exceeding 404 m must have their continuous current draw throttled below 0.1 A to counteract resistive voltage drop and capacitive reactive interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding Matrix:\u003c\/strong\u003e All signal cables must be terminated using low-impedance connections to the dedicated instrument ground bus. Shield continuity must be maintained through any intermediate junction boxes and isolated from the safety earth at the field device end to prevent ground loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management:\u003c\/strong\u003e Maintain free convection space around the module chassis inside the enclosure. When deployed in dual-redundant configurations, apply the A = 10 coefficient parameters to verify that the total cabinet heat load does not push the localized internal temperature past the 60 degC threshold.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44152979685464,"sku":"SED4D-11","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/SED4D-11-3.jpg?v=1780024901","url":"https:\/\/www.industriaxplc.com\/products\/digital-output-modules-yokogawa-sed4d-11-prosafe-rs","provider":"IndustriaX Limited","version":"1.0","type":"link"}