Description
The HIMA F 7131 (often referenced as part number F7131 / 981713102) is a specialized Power Supply Monitoring Module with buffer batteries, designed specifically for HIMA safety-related programmable electronic systems (PES), primarily the H51q / HIQuad safety systems.
Core Functionality & Specifications
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Primary Role: Monitors system voltages (specifically the 5V system rails generated by up to three separate power supplies) to ensure continuous, reliable operation in safety-critical industrial applications.
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Diagnostic Features:
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Features 3 LED displays on the front panel to show the real-time status of the monitored power feeds.
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Provides 3 test bits routed directly to central modules (such as the F 8650 or F 8651) for system diagnostics and software integration via user programs.
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Includes 3 outputs of 24V (PS1 to PS3) when used within additional power supply assembly kits (like the B 9361) to track individual power module health.
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Electrical Data:
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Operating Current: 5V DC at 25 mA, 24V DC at 20 mA.
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Space Requirement: 4 TE (or 4 SU rack space).
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Buffer Battery Backup:
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Utilizes onboard backup batteries (typically type CR-1/2 AA-CB) to maintain monitoring capability and prevent data loss during power transitions.
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Note: HIMA recommends routine battery maintenance/replacement (typically within a multi-year window depending on thermal loads) to ensure high availability.
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Applications
Used extensively in high-reliability safety instrumented systems (SIS) across heavy process industries—such as petrochemical plants, oil & gas facilities, power generation, and emergency shutdown (ESD) architectures—where uninterrupted power supervision is vital for maintaining
F7131
Product Overview
F7131 is a Power Supply Monitoring Module manufactured by HIMA Paul Hildebrandt GmbH for HIQuad H41q / H51q fault-tolerant safety instrumented systems.
It continuously monitors multiple DC power rails inside the safety rack, supervising operating status of redundant power supply units. The module detects voltage deviation, power abnormality and internal circuit faults, and transmits alarm signals to main processor modules. It supports onboard backup battery to maintain diagnostic data during power interruption, serving as an essential infrastructure component for SIL3 safety control racks.
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | F7131 |
| Module Type | Power Supply Monitoring Module |
| Manufacturer | HIMA Paul Hildebrandt GmbH |
| Applicable Platform | HIQuad H41q / H51 Safety Rack System |
| Monitored Power Channels | 3 channels of 5 VDC rack power supply |
| Auxiliary Signal Output | 3 × 24 VDC monitoring outputs (PS1～PS3) |
| Power Consumption | 25 mA @ 5 VDC |
| Backup Battery | Onboard lithium battery for data retention |
| Internal Bus | HIMA proprietary safety backplane bus |
| Hot Swap | Supported within certified HIMA rack |
| Operating Temperature | -20 ℃ ~ +70 ℃ |
| Ambient Humidity | 5%–95% non-condensing |
| Protection Grade | IP20 (cabinet mounting) |
| Front Panel Indicators | Module status and power fault LED indicators |
| Safety Certification | IEC 61508 SIL3, CE |
| Spare Part Status | OEM production discontinued; surplus new and refurbished modules available |
Key Features
- Real-time monitoring for multi-channel rack power, timely capturing undervoltage, overvoltage and power supply unit faults
- Independent circuit monitoring logic improves early warning capability for power infrastructure failures
- Built-in backup battery retains fault records and operating parameters after power loss
- Mechanical coding design prevents mismatched installation with other rack modules
- Supports redundant power configuration monitoring, widely matched with F8650E main processor module
- Comprehensive self-diagnosis function to detect module internal hardware abnormality
Important Reminder: F7131 is power monitoring infrastructure module, not CPU or I/O module; different hardware revisions cannot be directly interchanged without rack configuration verification.
