{"product_id":"relay-output-terminal-board-yokogawa-sarm55w-000-centum-vp","title":"Relay Output Terminal Board | Yokogawa SARM55W-000 CENTUM VP","description":"\u003ch2\u003eYokogawa SARM55W-000 Relay Output Terminal Board\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SARM55W-000\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eARM55W\u003c\/strong\u003e Relay Output Terminal Board, operates as a dedicated hardware component for switching discrete digital field signals within Yokogawa CENTUM VP DCS platforms.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe model and suffix codes define the precise hardware parameters for the SARM55W assembly:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSARM55W\u003c\/strong\u003e: Relay Output Terminal Board (32-channel, 19-inch rack mount)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-0\u003c\/strong\u003e: Basic type with no options\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0\u003c\/strong\u003e: Standard hardware revision\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0\u003c\/strong\u003e: Always 0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable style=\"width: 100%; height: 470.25px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 31.4286%; height: 19.5938px;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 64%; height: 19.5938px;\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 19.5938px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 19.5938px;\"\u003eSARM55W-000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 19.5938px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 19.5938px;\"\u003eYokogawa Electric Corporation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 19.5938px;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 19.5938px;\"\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 19.5938px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 19.5938px;\"\u003e2.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 39.1875px;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 39.1875px;\"\u003e482.6 x 132.5 x 177 mm (19-inch rack mount, 3U height)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 19.5938px;\"\u003eOperating Temp\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 19.5938px;\"\u003e0 deg C to +50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 39.1875px;\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 39.1875px;\"\u003e24 VDC +\/-5%, max 0.65 A (internal circuit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 39.1875px;\"\u003eOutput Points\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 39.1875px;\"\u003e32 isolated dry-contact relay outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 39.1875px;\"\u003eContact Rating\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 39.1875px;\"\u003e250 VAC at 0.6 A, 30 VDC at 0.6 A, 125 VDC at 0.1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 19.5938px;\"\u003eMinimum Load\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 19.5938px;\"\u003e5 VDC, 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 19.5938px;\"\u003eField Connection\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 19.5938px;\"\u003eM3.5 or M4 screw terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 39.1875px;\"\u003eInterconnect Cable\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 39.1875px;\"\u003eAKB331 (32-point) or AKB337 (64-point) system cables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 39.1875px;\"\u003eInteroperability\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 39.1875px;\"\u003eCompatible with ADV551 and ADV561 Digital Output Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 39.1875px;\"\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 39.1875px;\"\u003e\u0026gt;= 10 M-ohm at 500 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 31.4286%; height: 39.1875px;\"\u003eWithstand Voltage\u003c\/td\u003e\n\u003ctd style=\"width: 64%; height: 39.1875px;\"\u003e3 kV AC for 1 minute (field terminals to frame)\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; Galvanic Signal Execution\u003c\/h3\u003e\n\u003cp\u003eThe SARM55W-000 utilizes 32 electro-mechanical relays to provide galvanic channel-to-channel isolation across discrete output paths. Interfaced to ADV551 or ADV561 output modules via KS-system cables, the terminal board isolates high-voltage field switching transients from backplane processing buses. Individual channel relays prevent ground potential loops, supporting reliable switching execution for remote inductive field loads, visual alarms, and automated valve actuators.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the SARM55W-000 terminal board require external suppression when switching inductive loads?\u003c\/p\u003e\n\u003cp\u003eA: Yes. While internal relay contact isolation protects control electronics, installing external RC snubber networks for AC circuits or flyback diodes for DC circuits across inductive loads extends contact life and prevents arc erosion.\u003c\/p\u003e\n\u003cp\u003eQ: How is dual-line field power redundancy managed on this board?\u003c\/p\u003e\n\u003cp\u003eA: The terminal board incorporates dual field-side power supply terminals, distributing redundant 24 VDC power lines across two separate 16-channel relay groups to maintain operational continuity if one power rail fails.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the SARM55W-000 securely into a standard 19-inch instrument cabinet rack using four M5 retention screws. Route AKB331 or AKB337 system cables through rear cable support brackets and connect them directly to the card interface ports. Terminate field wiring onto the M3.5\/M4 terminal screws using insulated ring terminals, torquing screws to 1.2 N m. Ensure cabinet earthing straps establish direct, low-impedance metal-to-metal grounding contact with the unit's chassis to maintain effective noise suppression and safe fault current paths.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43895499980890,"sku":"SARM55W-000","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/874..jpg?v=1787535664","url":"https:\/\/www.spareoil.com\/products\/relay-output-terminal-board-yokogawa-sarm55w-000-centum-vp","provider":"SpareOil Automation","version":"1.0","type":"link"}