{"product_id":"16-channel-4-20ma-output-module-yokogawa-nfai543-s50-s1","title":"16-Channel 4-20mA Output Module | Yokogawa NFAI543-S50 S1","description":"\u003ch2\u003eYokogawa NFAI543-S50 Analog Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa NFAI543-S50 S1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eNFAI543\u003c\/strong\u003e Analog Output Module, operates as a dedicated hardware component for isolated current loop control within STARDOM FCN and FCJ autonomous controller networks.\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\u003eNFAI543-S50 S1\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\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 mm x 110 mm x 30 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\u003e230 mA at 5 VDC \/ 540 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e16 channels (isolated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAllowable Load Resistance\u003c\/td\u003e\n\u003ctd\u003e0 to 750 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-0.3% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Refresh Cycle\u003c\/td\u003e\n\u003ctd\u003e10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 VAC for 1 min (Output to System)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe Yokogawa NFAI543-S50 S1 current output module utilizes galvanic channel-to-channel isolation networks alongside 1500 VAC withstanding voltage barriers to decouple process control field loops from internal system backplane logic. Supporting 4-20 mA HART loop protocol communications across 16 isolated channels, the module maintains an output step response time under 100 ms while providing open-circuit detection when current drops below 0.65 mA.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What action does the module take when an open circuit fault occurs on a signal loop?\u003c\/p\u003e\n\u003cp\u003eA: The onboard diagnostic logic detects open circuits whenever loop current falls to 0.65 mA or less, triggering an internal alarm condition while asserting configurable channel fallback states.\u003c\/p\u003e\n\u003cp\u003eQ: Which physical connector types support field wiring connection to the module?\u003c\/p\u003e\n\u003cp\u003eA: Field connections interface through standard 40-pin MIL connector cables or via dedicated NFTA4S pressure clamp terminal blocks.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module require an external 24 VDC auxiliary power source for field loop driving?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module consumes 540 mA at 24 VDC to drive field currents up to 20 mA across maximum allowable load resistances of 750 ohm.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEngineers must follow precise installation practices when mounting high-density signal conversion modules:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eInsert the module securely into an available slot on the STARDOM FCN\/FCJ controller base rack until the locking mechanism clicks into position.\u003c\/li\u003e\n\u003cli\u003eConnect field wiring using MIL 40-pin cables or the NFTA4S pressure clamp block, verifying that terminal screws are properly torqued.\u003c\/li\u003e\n\u003cli\u003eKeep signal cables isolated from high-voltage distribution lines to prevent electromagnetic field coupling into current loops.\u003c\/li\u003e\n\u003cli\u003eGround cable shielding to the designated protective conductor point at a single grounding terminal before powering the 24 VDC supply lines.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43901484171354,"sku":"NFAI543-S50 S1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/73._aa50da39-ed2e-4faf-856d-e8a4a888ae8a.jpg?v=1787624382","url":"https:\/\/www.spareoil.com\/products\/16-channel-4-20ma-output-module-yokogawa-nfai543-s50-s1","provider":"SpareOil Automation","version":"1.0","type":"link"}