{"product_id":"ut55a-000-10-00-digital-indicating-controller-yokogawa-process-loop","title":"UT55A-000-10-00 Digital Indicating Controller | Yokogawa Process Loop","description":"\u003ch3\u003e\u003cstrong\u003eControl System Architecture \u0026amp; Core Capabilities\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003eYokogawa UT55A-000-10-00\u003c\/strong\u003e is a high-precision 1\/4 DIN digital indicating temperature and process controller engineered within the \u003cstrong style=\"color: #0056b3;\"\u003eUTAdvanced\u003c\/strong\u003e product line. Combining multi-loop PID algorithms with an embedded 500-step ladder sequence engine, this unit eliminates external auxiliary relays on compact skid panels. Its 14-segment high-contrast active color LCD delivers clear process feedback under harsh industrial lighting.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSuffix Matrix \u0026amp; Hardware Configuration Breakdown\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003e\u003cstrong\u003eModel Code Segment\u003c\/strong\u003e\u003c\/th\u003e\n      \u003cth\u003e\u003cstrong\u003eConfigured Value\u003c\/strong\u003e\u003c\/th\u003e\n      \u003cth\u003e\u003cstrong\u003eEngineering Specification\u003c\/strong\u003e\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSeries Base\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong style=\"color: #0056b3;\"\u003eUT55A\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1\/4 DIN Digital Indicating Controller (100–240 V AC; includes retransmission\/15 V DC loop power, 3 DIs, 3 DOs)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBasic Control\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003e-0\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eStandard single-loop PID \/ ON-OFF control architecture\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOptional Functions\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003e0\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eStandard base hardware without auxiliary analog\/position proportional boards\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOpen Networks\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003e0\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eStandalone local operation (No fieldbus communication option installed)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDisplay Language\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003e-1\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eEnglish factory default interface (User-configurable via parameter menu)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBezel Color\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003e0\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eWhite \/ Light gray industrial housing\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eFixed Suffix\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003e-00\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eStandardized factory release code\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications \u0026amp; Control Algorithms\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer \u0026amp; Part Number:\u003c\/strong\u003e \u003cstrong style=\"color: #0056b3;\"\u003eYokogawa\u003c\/strong\u003e \/ \u003cstrong style=\"color: #0056b3;\"\u003eUT55A-000-10-00\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Process Input:\u003c\/strong\u003e Accepts Thermocouples (TC), Resistance Temperature Detectors (RTD), DC voltage, and DC milliamp (mA) signals.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiscrete \u0026amp; Analog I\/O:\u003c\/strong\u003e Equipped with 3 Digital Inputs (DIs), 3 Digital Outputs (DOs), and a retransmission output (shared with 15 V DC transmitter loop power).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced Control Modes:\u003c\/strong\u003e Executes standard PID, ON\/OFF, auto-tuning, and proprietary \u003cstrong\u003eSUPER \/ SUPER2\u003c\/strong\u003e overshoot and hunting suppression algorithms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEmbedded Logic Engine:\u003c\/strong\u003e Supports up to 500 steps of internal ladder sequence programming for custom interlocks and timer routines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Supply \u0026amp; Mass:\u003c\/strong\u003e Operates on 100–240 V AC wide-range line voltage; net unit weight is 1.36 kg.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMechanical \u0026amp; Ingress Rating:\u003c\/strong\u003e 1\/4 DIN panel footprint with a shallow 65 mm behind-panel depth; NEMA4 \/ IP66 dust-proof and drip-proof front face.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eMechanical Layout \u0026amp; Commissioning Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify your enclosure door provides a standard 1\/4 DIN cutout and at least 65 mm of unobstructed interior clearance behind the bezel.\u003c\/li\u003e\n  \u003cli\u003eConfigure input sensor linearization and thermocouple cold-junction compensation parameters prior to enabling closed-loop auto-tuning.\u003c\/li\u003e\n  \u003cli\u003eUtilize \u003cstrong style=\"color: #0056b3;\"\u003eYokogawa\u003c\/strong\u003e LL50A Parameter Setting Software to build and download 500-step ladder logic programs efficiently during bench commissioning.\u003c\/li\u003e\n  \u003cli\u003eEnsure the front panel gasket seats flush against the cabinet surface to preserve the IP66 \/ NEMA4 washdown seal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWarranty Coverage \u0026amp; International Fulfillment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12-Month Comprehensive Warranty:\u003c\/strong\u003e Every \u003cstrong style=\"color: #0056b3;\"\u003eUT55A-000-10-00\u003c\/strong\u003e unit carries a full 12-month warranty covering hardware integrity and operational performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGlobal Express Logistics:\u003c\/strong\u003e Fast, insured worldwide dispatch via \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e with complete airway bill tracking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eEngineering FAQ \u0026amp; Selection Guidance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the SUPER2 algorithm improve thermal process stability compared to standard PID tuning?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Standard PID loops often overshoot setpoints during large batch startups or load disturbances. Yokogawa's SUPER2 fuzzy-logic suppression dynamically dampens initial temperature spikes and eliminates steady-state hunting without manual gain retuning.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: When should engineers use the built-in 500-step ladder sequence function on the \u003cspan style=\"color: #0056b3;\"\u003eUT55A-000-10-00\u003c\/span\u003e?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Use the embedded ladder engine to handle local startup interlocks, soak-timer holding, or fan-cooling delays directly through the 3 DIs and 3 DOs, saving cabinet space and cost by eliminating a micro-PLC.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does this specific suffix support direct Ethernet or RS-485 SCADA polling?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No. The zero in the open networks digit of \u003cspan style=\"color: #0056b3;\"\u003eUT55A-000-10-00\u003c\/span\u003e specifies a standalone configuration without communication cards. If your plant requires Modbus\/TCP or RS-485 connectivity, select a different suffix option before purchasing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Why does the 65 mm short-depth chassis matter when retrofitting legacy 1\/4 DIN controllers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Legacy 1\/4 DIN controllers often exceed 100 mm in rear depth and collide with internal DIN rails or wire ducts. The 65 mm compact depth allows drop-in retrofits into shallow electrical enclosures without modifying backpanel layouts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I choose between the white bezel (-10) and black bezel (-11) variants?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The \u003cspan style=\"color: #0056b3;\"\u003eUT55A-000-10-00\u003c\/span\u003e features a light gray\/white bezel suited for cleanroom, pharmaceutical, and laboratory panels, whereas the black bezel variant blends into dark-painted heavy industrial switchgear cabinets.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":68048653877430,"sku":"UT55A-000-10-00","price":317.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/UT55A-000-10-00-1.jpg?v=1794466381","url":"https:\/\/www.plcsparehub.com\/products\/ut55a-000-10-00-digital-indicating-controller-yokogawa-process-loop","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}