HIMA F-7126 99 000111 PES Series Safety Power Supply
Manufacturer: HIMA
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Part Number: F7126 99 000111
Condition：New with Original Package
Product Type: Power Supply Modules
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Country of Origin: Germany
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
HIMA F7126 99 000111 Safety Power Supply
The HIMA F7126 99 000111, also cataloged as the F7126 Redundant Power Supply Module, operates as a dedicated hardware component for converting 24 VDC primary power to regulated 5 VDC system logic power within HIMA PES, H41q, and H51q rack architectures.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | F7126 99 000111 |
| Brand | HIMA |
| Origin | Germany |
| Weight | 1.8 kg |
| Dimensions | 125 mm x 150 mm x 120 mm |
| Operating Temp | -20 deg C to +60 deg C |
| Power Consumption | 24 VDC input (converts to 5 VDC output, rated up to 1000 W) |
| Redundancy Architecture | Dual-channel, hot-swappable N+1 configuration |
| Integrated Protection | Overvoltage, active current limitation, short-circuit-proof output |
| Protection Rating | IP65 or higher |
| Safety Certification | CE, FCC, SIL 3 (IEC 61508) |
SIL3 Certification and Fail-Safe State Execution
Designed to meet SIL 3 functional safety requirements according to IEC 61508, the internal conversion stage employs galvanic isolation to isolate 24 VDC input field power lines from 5 VDC backplane logic circuitry. Microprocessor-driven monitoring logic evaluates line output voltage levels, secondary loop currents, and module heatsink temperatures in real time. If overvoltage conditions or short-circuit faults exceed defined operating parameters, internal decoupling diodes and protective clamps engage to isolate the fault path, forcing a deterministic fail-safe state execution and energizing fault relay contacts without interrupting power delivery to adjacent rack controllers.
Frequently Asked Questions
Q: How does the N+1 redundant configuration behave when one power supply channel fails?
A: Integrated decoupling diodes prevent reverse current flow, allowing the functional module to maintain the 5 VDC backplane rail without voltage droop while the failed unit triggers a relay fault output.
Q: Is hot-swapping allowed for a faulty module while the system is powered on?
A: Operators can remove and replace the faulty unit directly during active backplane operation without shutting down the system, provided the remaining parallel module maintains the system load.
Field Installation Guidelines
Mount the unit firmly into the designated rack slot within an IP65-rated industrial cabinet to ensure full ingress protection against moisture and ambient contaminants. Ensure a low-impedance grounding bond between the module housing and the primary protective earth (PE) busbar using a short copper strap. Maintain a minimum vertical clearance of 50 mm above and below the rack to permit natural thermal convection across the heat dissipation fins. Route incoming 24 VDC supply cables separately from high-frequency signal lines to prevent electromagnetic coupling.