{"product_id":"digital-input-module-yokogawa-sdv144-s53-s4-prosafe-rs","title":"Digital Input Module | Yokogawa SDV144-S53 S4 ProSafe-RS","description":"\u003ch2\u003eYokogawa SDV144-S53 S4 Digital Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for discrete signal acquisition and safety loop monitoring in ProSafe-RS safety instrumented systems, the \u003cstrong\u003eYokogawa SDV144-S53 S4\u003c\/strong\u003e (\u003cstrong\u003eSDV144\u003c\/strong\u003e Digital Input Module) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Model (SDV144):\u003c\/strong\u003e Digital Input Module designed for ProSafe-RS Safety Control Units and Safety Node Units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Type (-S53):\u003c\/strong\u003e Designates 16-channel dry contact input specification with pulse count capability and SIL3 safety compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle Code (S4):\u003c\/strong\u003e Denotes the hardware circuit revision level, ensuring firmware compatibility and improved internal diagnostic performance over earlier styles.\u003c\/li\u003e\n\u003c\/ul\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\u003eSDV144-S53 S4\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.34 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e32.8 x 130 x 107.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e290 mA max at 5 VDC, 140 mA max at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 channels, isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Type\u003c\/td\u003e\n\u003ctd\u003eDry contact (no-voltage contact)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn\/Off Resistance\u003c\/td\u003e\n\u003ctd\u003eOn: \u0026lt;= 1 kohm, Off: \u0026gt;= 100 kohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Voltage\/Current\u003c\/td\u003e\n\u003ctd\u003e24 VDC rated voltage, 6 mA +\/- 20% input current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Withstand\u003c\/td\u003e\n\u003ctd\u003e2000 VAC between input channels and system logic for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation \u0026amp; Fieldbus Loop Dynamics\u003c\/h3\u003e\n\u003cp\u003eThe SDV144-S53 S4 module utilizes optical isolation barriers rated at 2000 VAC between field input terminals and internal backplane processing logic. This separation eliminates ground loops across field contacts and prevents common-mode high-voltage transients from propagating into the safety node CPU. Integrated circuit diagnostic routines continually monitor field input states to verify loop resistance and ensure deterministic execution of safety-instrumented functions without signal cross-talk.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the SDV144-S53 S4 support online module replacement (hot-swapping) during normal operation?\u003c\/p\u003e\n\u003cp\u003eA: Yes, hot-swapping is supported when installed in a dual-redundant module configuration without interrupting active safety loop monitoring or backplane power distribution.\u003c\/p\u003e\n\u003cp\u003eQ: What power source energizes the dry contact input sensing loops?\u003c\/p\u003e\n\u003cp\u003eA: Field contacts require an external regulated 24 VDC power supply connected through the terminal board to source the mandatory 6 mA loop current.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module detect field wiring open circuits?\u003c\/p\u003e\n\u003cp\u003eA: Yes, internal diagnostic logic continuously checks field circuit line resistance against pre-configured thresholds to detect open-circuit conditions on dry contact loops.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower De-energization: Verify field contact power feeds are isolated prior to landing terminal wiring on the STB4D-10 pressure clamp block.\u003c\/li\u003e\n\u003cli\u003eGrounding Integrity: Terminate signal cable shields strictly at the system chassis grounding bus bar to ensure maximum noise rejection and transient suppression.\u003c\/li\u003e\n\u003cli\u003eModule Insertion: Align module edge card connectors with the guide rails inside the safety control unit rack and push firmly until the top and bottom lock levers click into place.\u003c\/li\u003e\n\u003cli\u003eSignal Separation: Keep field digital input wiring physically segregated from high-voltage AC lines and variable frequency drive output cables inside field wiring ducts.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43859595886682,"sku":"SDV144-S53 S4","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/763._90ab932e-6eb4-4e72-86b6-18ce341253ce.jpg?v=1787018172","url":"https:\/\/www.spareoil.com\/es\/products\/digital-input-module-yokogawa-sdv144-s53-s4-prosafe-rs","provider":"SpareOil Automation","version":"1.0","type":"link"}