Description
Yokogawa PW482‑50 S2
Technical Specifications: AC input range 220‑240 VAC ±10 %, 50 / 60 Hz, maximum input current 1.3 A; output rail 5.1 VDC maximum 7.8 A; output rail 24 VDC maximum 1.7 A; maximum apparent power consumption 230 VA; safety certification meets IEC 61508 functional‑safety requirements; operating temperature 0 °C‑60 °C; storage temperature ‑20 °C‑70 °C; relative humidity 10‑90 %RH non‑condensing; rack‑slot installation for ProSafe‑RS main rack; weight 1.4 kg; multiple LED indicators for input‑power status, output‑good status and internal fault condition; built‑in over‑voltage, over‑current and over‑temperature hardware protection mechanisms.
Functional Features: Multi‑channel regulated DC output supplies different voltage domains across ProSafe‑RS rack backplane; hardware self‑diagnosis continuously monitors input voltage, output voltage, output current and internal temperature; fault‑status LED visualizes power‑supply abnormality directly on module front panel; protection circuits shut down output power under over‑voltage, over‑current or over‑temperature fault events; hot‑swap capable within ProSafe‑RS rack under defined operating procedures; full compatibility with ProSafe‑RS series CPU and I/O modules; S2 hardware revision improves component aging resistance for process‑plant long‑term service.
Application Scenarios: Oil and gas plant safety instrumented SIS systems; chemical process plant emergency shutdown control systems; petrochemical refinery safety‑related control cabinets; power‑plant auxiliary safety control racks; ProSafe‑RS system spare‑part replacement and maintenance projects.
Performance Parameters: Functional‑safety hardware meets SIL‑3 system architecture requirements when configured according to official system manual; power conversion efficiency maintains stable level under full‑load and partial‑load operating points; vibration and shock resistance comply with process‑industry cabinet‑mount equipment standards; supports continuous 24‑7 year‑round operation inside industrial control cabinets.
Material Composition: Orange‑colored V0 flame‑retardant engineering‑plastic rack‑module housing; FR‑4 power‑grade multilayer glass‑fiber printed circuit board; high‑reliability switching‑mode power semiconductor components; safety‑rated isolation transformers; nickel‑plated gold‑plated backplane edge connector contacts; multi‑color high‑brightness status LED indicators; metal mechanical locking latches for rack fastening.
Structural Features: Standard ProSafe‑RS rack‑slot physical profile; rear‑side gold‑plated edge‑connector mates with main‑rack backplane bus for power‑output delivery; front‑panel equipped with array of status LED indicators; side mechanical locking clips fasten module securely into designated power‑supply slot of ProSafe‑RS rack; integrated ventilation slots for passive convection heat dissipation.
Working Principle: 220‑240 VAC mains input connects via rack backplane to PW482‑50 S2 internal rectifier‑filter circuit. Switching‑mode power topology converts high‑voltage alternating current into isolated, regulated 5.1 VDC and 24 VDC output rails. Output power feeds to ProSafe‑RS rack backplane to supply all other rack‑resident modules. Internal monitoring circuits sample input voltage, output voltage, output current and internal temperature in real‑time. When protection threshold values exceed defined limits, hardware protection circuit cuts off DC output immediately and illuminates fault‑status LED indicator.
Installation Requirements: Install PW482‑50 S2 into dedicated power‑supply slot of ProSafe‑RS main rack; fasten main rack onto cabinet DIN‑rail or fixed mounting base; reserve adequate ventilation space around module housing and avoid blocking ventilation slots; connect AC input power according to official wiring diagram; implement reliable protective grounding for control cabinet and rack assembly.
Usage Notes: Observe official hot‑swap operating procedures before module replacement under powered‑on rack condition; do not apply AC input voltage outside 220‑240 VAC nominal range; never use this module as standalone general‑purpose industrial power supply outside ProSafe‑RS rack environment; avoid deployment in environments with corrosive process gas, liquid splash or condensation; perform periodic inspection of rack backplane contact condition.
