{"product_id":"yokogawa-arm15a-mechanical-relay-contact-input-module","title":"Yokogawa ARM15A Mechanical Relay Contact Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa ARM15A\u003c\/strong\u003e , also cataloged as the \u003cstrong\u003eARM15A\u003c\/strong\u003e Mechanical Relay Contact Input Module, serves as the primary \u003cstrong\u003eSARM15A\u003c\/strong\u003e [Product Type] utilized to execute field dry-contact sense routing across CENTUM VP \/ CENTUM CS 3000 platforms.\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\u003eARM15A (SARM15A base variant)\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\u003eStandard module weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Yokogawa rack module footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard industrial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC internal circuit, 0.32 A max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Capacity\u003c\/td\u003e\n\u003ctd\u003e32-point contact points (Single \/ Dual-redundant)\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 Modules\u003c\/td\u003e\n\u003ctd\u003eADV151 (32-point DI), ADV161 (64-point DI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Cable Compatibility\u003c\/td\u003e\n\u003ctd\u003eAKB331 (32-point), AKB337 (64-point)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Thresholds\u003c\/td\u003e\n\u003ctd\u003eON: 150 ohm or less, OFF: 200 kohm or more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Power Supply\u003c\/td\u003e\n\u003ctd\u003eDual-line 24 VDC (0.3 A max per 16-point line)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Contact Load\u003c\/td\u003e\n\u003ctd\u003e24 VDC, 13 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003eAt least 10 Mohm at 500 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWithstanding Voltage\u003c\/td\u003e\n\u003ctd\u003eField terminals to case: 1.5 kV; 24 V power to case: 500 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSignal Routing \u0026amp; Field Loop Isolation\u003c\/h3\u003e\n\u003cp\u003eThe unit features galvanically separated input channels configured to interface field mechanical contact closures directly to central process logic. Channel insulation rated at 1.5 kV withstand voltage prevents common-mode voltage spikes and high-voltage field noise from penetrating the central backplane bus. Signal noise suppression circuit paths maintain discrete signal boundary integrity under high electromagnetic interference environments.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What signal cables are required to interface the ARM15A with Yokogawa ADV151 or ADV161 digital input modules?\u003c\/p\u003e\n\u003cp\u003eA: Use the AKB331 cable for 32-point configurations with the ADV151 module, or the AKB337 cable when interfacing with 64-point ADV161 modules.\u003c\/p\u003e\n\u003cp\u003eQ: How is field power distributed across the 32 input channels?\u003c\/p\u003e\n\u003cp\u003eA: Field power is distributed using a dual-line 24 VDC configuration, supplying power independently per 16-point block with a maximum current rating of 0.3 A per line.\u003c\/p\u003e\n\u003cp\u003eQ: What are the electrical loop conditions required for detecting ON and OFF state transitions?\u003c\/p\u003e\n\u003cp\u003eA: An ON signal state requires a loop resistance of 150 ohm or less, while an OFF signal state requires a loop resistance of at least 200 kohm.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSecure the ARM15A module firmly into the designated Yokogawa I\/O slot, ensuring proper engagement of backplane connectors.\u003c\/li\u003e\n\u003cli\u003eWire field contacts using M4 screw terminals, applying recommended torque specifications to maintain reliable electrical connections under ambient industrial vibration.\u003c\/li\u003e\n\u003cli\u003eConnect external 24 VDC field supply lines to the dual power terminals, ensuring line current draw does not exceed 0.3 A per 16-point group.\u003c\/li\u003e\n\u003cli\u003eVerify that field device contact ratings meet the minimum load requirement of 24 VDC at 13 mA for correct contact wetting operation.\u003c\/li\u003e\n\u003cli\u003eConfirm field wiring shields are properly tied to ground points to maintain the 1.5 kV field-to-case withstand voltage rating.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52602484293912,"sku":"SARM15A","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/YOKOGAWASARM15A.png?v=1788332892","url":"https:\/\/www.innoplcsync.com\/products\/yokogawa-arm15a-mechanical-relay-contact-input-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}