Technical Specifications Input Voltage:120/240VAC auto‑range Output:5VDC, 55W Backplane Supply Current:11A @5VDC Isolation Voltage:1500V RMS Operating Temperature:0℃～+60℃ Storage Temperature:-40℃～+85℃ Relative Humidity:5%-95%, non‑condensing Certifications:CE, UL, cUL
Functional Features Auto‑range AC input, high output power, multi‑level protection circuit, power‑OK LED indication, large‑quantity‑module rack power support.
Application Scenarios High‑density I/O main rack, medium‑size Series 90‑30 system, automation cabinet with abundant plug‑in modules.
Performance Parameters Output voltage tolerance ±5% Over‑current, over‑temperature, short‑circuit protection Continuous heavy‑load industrial operation Shock & vibration:Comply with IEC 60068
Structural Characteristics Standard Series 90‑30 rack power‑supply slot module Front‑panel POWER‑OK LED indicator Front AC input terminal block Backplane gold‑finger power delivery contact Internal high‑power switching conversion circuit Mechanical locking latch
Working Principle AC input passes EMI filtering and high‑power switching conversion, generates stable 5VDC power to feed rack backplane bus for CPU and I/O modules. Internal protection circuit monitors output current, voltage and temperature. Fault condition triggers protection action and extinguishes power‑OK LED.
Installation Requirements Mount into dedicated power slot on Series 90‑30 main rack. Reliable cabinet protective grounding. Verify actual total backplane load shall not exceed rated output capacity. AC input wiring conforms to current‑carrying requirement. Disconnect AC power before module replacement, hot‑swap unavailable. Guarantee cabinet ventilation heat dissipation.
Usage Notes Calculate total power consumption of all rack modules before commissioning. Prevent AC input surge interference. Keep ventilation channel free of blockage. Observe front‑panel power‑OK LED status periodically. On‑site disassembly is prohibited. Avoid heavy dust, corrosive gas and liquid splash.
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