{"product_id":"yokogawa-power-supply-amm42-s4-datasheet-technical-manual","title":"YOKOGAWA Power Supply AMM42-S4 Datasheet \u0026 Technical Manual","description":"\u003cp\u003eConfigured for stable power distribution in control system racks, the \u003cstrong\u003eYOKOGAWA AMM42-S4\u003c\/strong\u003e (\u003cstrong\u003eAMM42-S4\u003c\/strong\u003e Power Supply) provides direct physical electrical regulation for 2-wire transmitter loops within DCS 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\u003eAMM42-S4\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\u003e0.6kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.5 cm x 22.9 cm x 7.6 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e12 W (Rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Loop Connectivity and Isolation\u003c\/h3\u003e\n\u003cp\u003eThe module architecture ensures dedicated channel-to-channel isolation for 2-wire transmitter loops, preventing electrical noise propagation between individual field devices. It supports standard 4-20 mA HART loop protocol connectivity, maintaining signal integrity for remote monitoring. Thermal dissipation is managed through a passive heat sink profile integrated into the chassis, allowing for continuous operation without forced convection under standard ambient conditions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is this module compatible with existing 24 VDC common bus structures?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the output is designed to interface with standard backplane power rails, provided the total current draw does not exceed the rated capacity of the bus segments.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module provide protection against short-circuit conditions on the field loop?\u003c\/p\u003e\n\u003cp\u003eA: The circuitry includes current-limiting logic to protect against field-side short circuits, though proper external fusing is required to meet specific site safety standards.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the primary AC supply voltage matches the input rating of the power rack before seating the module.\u003c\/li\u003e\n\u003cli\u003eEnsure the module is fully latched into the backplane to establish a low-impedance ground connection for EMI shielding.\u003c\/li\u003e\n\u003cli\u003eUse shielded twisted-pair cabling for all field loops, ensuring the shield is terminated to the cabinet ground at one end only to prevent ground loop currents.\u003c\/li\u003e\n\u003cli\u003eMaintain a minimum clearance of 5 cm above and below the module to allow for natural convection cooling and temperature stabilization.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49149514580220,"sku":"AMM42 S4","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/AMM42-S41.jpg?v=1780277240","url":"https:\/\/www.electronicplc.com\/ar\/products\/yokogawa-power-supply-amm42-s4-datasheet-technical-manual","provider":"Electronic PLC","version":"1.0","type":"link"}