{"product_id":"yokogawa-arm55w-relay-board","title":"Yokogawa ARM55W Relay Board","description":"\u003cp\u003eConfigured for mechanical relay wet contact output in Yokogawa CENTUM VP\/CS 3000 systems, the \u003cstrong\u003eYokogawa ARM55W\u003c\/strong\u003e (\u003cstrong\u003eARM55W\u003c\/strong\u003e Relay Board) provides direct physical\/electrical execution.\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\u003eARM55W\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\u003e2.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eW: 482.6 mm x H: 132.5 mm (Standard 19-inch rack, 3U height)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMax. 0.65 A (Internal circuit at 24 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Density\u003c\/td\u003e\n\u003ctd\u003e32-point (Grouped as dual-line, 16 points per line)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eWet contact output (Single \/ Dual-redundant execution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Contact Load\u003c\/td\u003e\n\u003ctd\u003e250 V AC: 0.6 A per point \/ 30 V DC: 0.6 A per point \/ 125 V DC: 0.1 A per point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin Contact Load\u003c\/td\u003e\n\u003ctd\u003e5 V, 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Power Rating\u003c\/td\u003e\n\u003ctd\u003e250 V AC: Max. 9.6 A \/ 30 V DC: Max. 9.6 A \/ 125 V DC: Max. 1.6 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Resistance\u003c\/td\u003e\n\u003ctd\u003eAt least 10 MΩ (500 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWithstanding Voltage\u003c\/td\u003e\n\u003ctd\u003e2 kV (Field to case) \/ 500 V (24 V to case) \/ 2 kV (24 V to field)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Terminals\u003c\/td\u003e\n\u003ctd\u003eM4 screw terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Cards\u003c\/td\u003e\n\u003ctd\u003eADV551 (with ATD5A block) \/ ADV561\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Cables\u003c\/td\u003e\n\u003ctd\u003eAKB331 (32-point) \/ AKB337 (64-point)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Instrumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-20 mA and Discrete Signal Loop Isolation:\u003c\/strong\u003e The board provides physical galvanic isolation barriers to prevent field-side electrical surges from propagating into sensitive digital output cards. Galvanic pathing stands tested up to 2 kV between field device terminals and internal logic circuitry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundant Power Supply Bus Design:\u003c\/strong\u003e Power supply for field devices is structured over a dual-line system (16 points per line) to maintain high system availability. It allows independent loop power routing and prevents a single field-side power failure from disabling the entire 32-point block.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Which Yokogawa digital output modules are compatible with this board?\u003c\/p\u003e\n\u003cp\u003eA: The board directly interfaces with the ADV551 (32-point DO, utilizing an ATD5A terminal block) or the ADV561 (64-point DO) module via AKB331 or AKB337 signal cables respectively.\u003c\/p\u003e\n\u003cp\u003eQ: What are the primary electrical isolation characteristics between the power input and output loops?\u003c\/p\u003e\n\u003cp\u003eA: The design supports physical insulation resistance of at least 10 MΩ at 500 V DC. The withstanding voltage threshold is rated at 2 kV between the 24 V DC logic power terminals and the field-side wet contact terminal tracks.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e19-Inch Rack Frame Integration:\u003c\/strong\u003e Secure the 3U chassis panel to standard 19-inch rack enclosures using four M6 mounting bolts. Ensure surrounding thermal dissipation paths remain unobstructed to prevent local hot spots in the cabinet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM4 Terminal Torque Limits:\u003c\/strong\u003e Terminate field cabling on the integrated M4 screw blocks. Tighten connection terminal screws to a nominal torque of 1.2 N·m to ensure long-term physical integrity and low contact resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Strain Relief Routing:\u003c\/strong\u003e Route field power lines and high-density digital signal cables through separate wire ducts. Secure cables to the integrated support bar of the cabinet to prevent mechanical stress on the terminal connections.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45256562049139,"sku":"SARM55W","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/SARM55W_1_f9039a0b-b455-4446-9ff0-ebcef798114a.jpg?v=1784259241","url":"https:\/\/www.dcssupplier.com\/ar\/products\/yokogawa-arm55w-relay-board","provider":"DcsSupplier Limited","version":"1.0","type":"link"}