{"product_id":"yokogawa-aep7d-15-dcs-primary-power-supply-bus-unit","title":"Yokogawa AEP7D-15 DCS Primary Power Supply Bus Unit","description":"\u003ch2\u003eYokogawa AEP7D-15 Primary Power Supply Bus Unit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa AEP7D-15\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAEP7D\u003c\/strong\u003e Primary Power Supply Bus Unit, operates as a dedicated hardware component for primary power distribution and voltage regulation within DCS cabinet backplanes. Configured with dual AC input capabilities, the unit converts 100-240 VAC supply power into stable 5 VDC and 24 VDC rails to power connected analog and digital I\/O modules. Overcurrent protection limits short-circuit damage across individual bus lines while maintaining low output ripple.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSuffix Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eOption Specification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e-1\u003c\/td\u003e\n\u003ctd\u003e100-120 VAC Input Range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-5\u003c\/td\u003e\n\u003ctd\u003eBasic Type without Explosion Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eAEP7D-15\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\u003e1.8 kg (Shipping Weight: 5.0 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e482.6 mm x 43.6 mm x 187 mm (19-inch rack unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eInput: 100-240 VAC, 50\/60 Hz; Output: 5 VDC \/ 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Output Current\u003c\/td\u003e\n\u003ctd\u003eUp to 10 A per bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Input Current\u003c\/td\u003e\n\u003ctd\u003e20 A per primary power supply bus unit (6 A max per port)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRipple and Noise\u003c\/td\u003e\n\u003ctd\u003eLE 50 mV peak-to-peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Features\u003c\/td\u003e\n\u003ctd\u003eChannel-level overcurrent protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Withstand\u003c\/td\u003e\n\u003ctd\u003e1500 VAC withstand voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe AEP7D-15 delivers regulated DC power to field communication cards handling 4-20 mA HART loop protocol signals and high-density I\/O racks. By maintaining stable output voltages with minimal ripple, the unit prevents electrical noise from cross-contaminating analog input channels equipped with channel-to-channel isolation. Cold junction compensation (CJC) circuits on thermocouple modules depend on this stable backplane bus power to maintain continuous measurement accuracy.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the AEP7D-15 handle internal overcurrent conditions on connected I\/O buses?\u003c\/p\u003e\n\u003cp\u003eA: The unit uses built-in channel-level overcurrent protection to limit current spikes and prevent cascading faults to adjacent modules.\u003c\/p\u003e\n\u003cp\u003eQ: What input current limits apply to individual power input ports on the AEP7D-15?\u003c\/p\u003e\n\u003cp\u003eA: The unit handles up to 20 A total input current, with each individual port rated for a maximum of 6 A.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the AEP7D-15 horizontally into a standard 19-inch cabinet rack using side brackets. Secure all mounting hardware to guarantee structural stability and ground continuity through the rack frame.\u003c\/p\u003e\n\u003cp\u003eWire AC primary input lines according to terminal phase designations. Maintain single-point cabinet grounding and isolate primary power wiring from sensitive analog signal lines to eliminate ground loops and induced noise. Ensure unrestricted airflow around the heat dissipation vents to preserve operating temperatures below +55 deg C.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43831910563930,"sku":"AEP7D-15","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/6_7ae4f4dc-7dbb-4f0a-9f5c-68fe4d69fa08.jpg?v=1786498611","url":"https:\/\/www.spareoil.com\/products\/yokogawa-aep7d-15-dcs-primary-power-supply-bus-unit","provider":"SpareOil Automation","version":"1.0","type":"link"}