{"product_id":"yokogawa-ps-502-01-ps-502-prosafe-sls-power-supply-board","title":"Yokogawa PS-502-01 PS-502 ProSafe-SLS Power Supply Board","description":"\u003ch2\u003eYokogawa PS-502-01 Power Supply Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa PS-502-01\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePS-502\u003c\/strong\u003e Power Supply Board, operates as a dedicated hardware component for converting 24 VDC field voltage into 20 VDC regulated logic voltage within ProSafe-SLS safety systems.\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\u003ePS-502-01\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\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard Euro-card weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eSingle Euro 6TE (160 x 100 x 30 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePower Dissipation: 2 W (no load), 9 W (full load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC +\/-10% (+20% temporary)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRegulated Output\u003c\/td\u003e\n\u003ctd\u003e20 VDC +\/-1% (adjustable via front trimmer), max 1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnregulated Output\u003c\/td\u003e\n\u003ctd\u003e24 VDC (+10%, -5%), max 1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eDIN 41612 Bauform F, 48 pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eInput to output 0.5 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; System Isolation\u003c\/h3\u003e\n\u003cp\u003eThe power supply module delivers power conversion for process control and DCS instrumentation racks. While providing a 20 VDC regulated rail via front trimmer adjustment, the internal circuitry enforces galvanic isolation up to 0.5 kV between input and output paths. The board integrates crowbar overvoltage protection alongside fold-back short-circuit protection (tripping at roughly 0.35 A) to safeguard downstream logic components, while channel status indicators monitor primary loop health under fluctuating field conditions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How do technicians monitor voltage status on the front panel?\u003c\/p\u003e\n\u003cp\u003eA: Technicians visually inspect two red LEDs on the front panel, which indicate the operational presence of input voltage and regulated output voltage.\u003c\/p\u003e\n\u003cp\u003eQ: What physical current limit applies when drawing power from both output rails simultaneously?\u003c\/p\u003e\n\u003cp\u003eA: The board enforces a maximum combined total output limit of 1 A shared between the 20 VDC regulated and 24 VDC unregulated outputs.\u003c\/p\u003e\n\u003cp\u003eQ: How does the internal electronic protection handle output short-circuit conditions?\u003c\/p\u003e\n\u003cp\u003eA: The onboard fold-back protection limits short-circuit current down to approximately 0.35 A, which prevents thermal stress until field personnel clear the fault.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstallers must insert the board into a standard Euro 6TE card cage, aligning the 48-pin DIN 41612 Bauform F connector carefully before pressing the card fully into place. Maintenance crews must verify that the 2 A fast-acting input fuse is intact and ensure field wiring maintains proper grounding to maximize EMC immunity. Field engineers adjust the front trimmer to calibrate the 20 VDC output rail within specified tolerances while ensuring ambient cabinet temperatures remain between -20 deg C and +70 deg C.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43873386496090,"sku":"PS-502-01","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/47_26f27c48-0137-4026-bf79-4ba78a54dde2.jpg?v=1787204513","url":"https:\/\/www.spareoil.com\/products\/yokogawa-ps-502-01-ps-502-prosafe-sls-power-supply-board","provider":"SpareOil Automation","version":"1.0","type":"link"}