Key Technical Specifications
- Product Model: F-PWR01 984860100
- Manufacturer: HIMA
- System Platform: HIMax XMR
- Output Power: 600 W continuous (720 W peak for 10 s)
- Output Voltage: 24 V DC ± 1 % (adjustable 23.5–28.5 V via SILworX)
- Output Current: 25 A continuous, electronic overcurrent limitation at 30 A
- Input Voltage Range: 85–264 V AC (47–63 Hz) universal or 110–300 V DC
- Efficiency: > 93 % at nominal load
- Redundancy: Active 1oo2 load sharing with automatic decoupling of faulty unit
- Diagnostics: Input voltage, output voltage/current, temperature, fan speed, predictive failure warning via safeethernet
- Hot-Swap Capability: Full hot insertion/removal without system disturbance
- Power Factor: > 0.99 (active PFC)
- Operating Temperature: –20 °C to +60 °C (derating above 50 °C)
- Cooling: Temperature-controlled dual redundant fans (replaceable without de-powering)
- Certifications & Standards: IEC 61508 SIL 3 (power supply itself not in safety loop but certified for use in SIL 3 systems), CE, UL, ATEX Zone 2, DNV-GL, TÜV
- MTBF: > 850,000 hours at 40 °C
Technical Architecture & Functional Positioning
The F-PWR01 is the only power supply module approved by HIMA for use in HIMax safety systems. It is designed as a fully integrated component of the XMR architecture rather than a simple commercial PSU. Two F-PWR01 units operate in active-parallel redundancy with true diode-less load sharing via high-speed backplane signalling — eliminating single-point-of-failure risks associated with traditional OR-ing diodes.
Diagnostic data (input voltage, output current per segment, internal temperature, fan tachometer) is continuously transmitted over the safeethernet backplane to the F-CPU01, enabling predictive maintenance and early warning before any impact on system availability. In the event of one unit failing, the remaining unit instantly assumes 100 % load with zero voltage dip and reports the fault with full root-cause information.
Typical Application Scenarios:
- Applied in large integrated ESD/F&G/BMS systems where power supply redundancy is mandatory for SIL 3 certification
- Used in offshore platforms and FPSOs requiring hot-swap capability during continuous operation
- Deployed in petrochemical crackers and ethylene plants with > 20 HIMax racks per train
- Serves as direct replacement for older PES01 (944001000) units during system expansion
- Utilized in turbine control and compressor anti-surge systems demanding uninterrupted 24 V supply
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