Product Overview
The HIMA F7131 functions as a triple-rail power monitoring module for HIMA H41q and H51q safety systems. It supervises up to three independent 5V DC power supplies simultaneously. Consequently, operators detect voltage deviations before they affect safety logic execution. The module includes integrated buffer batteries for state retention during power interruptions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Monitored Voltage | 5V DC system power rails |
| Power Supplies | Up to 3 independent units (PS1-PS3) |
| Undervoltage Threshold | 4.7V DC trip point |
| Buffer Battery | CR-1/2 AA-CB, 4-year cycle |
| Power Consumption | 110mA at 5V, 20mA at 24V |
| Isolation Rating | 1500VAC galvanic isolation |
| Operating Temperature | -20°C to +60°C |
| Weight | 0.22 kg (0.49 lbs) |
| Form Factor | 4 TE Eurocard, IP20 |
| Safety Rating | SIL 3 (IEC 61508) |
Hardware Details
Three front-panel LEDs provide immediate visual status for each monitored power rail. Therefore, technicians verify supply health without diagnostic software. The module includes independent analog comparator circuits for each channel. Meanwhile, low-pass filters suppress switching noise from DC-DC converters to prevent false triggers.
The HIMA F7131 uses the HIMA X-Bus backplane for fault data transmission. It sends digital fault flags to the central processing unit every scan cycle. Furthermore, digital fault latch registers retain each power rail failure state.
System Integration
Engineers install the module in the B9361 I/O subrack for H41q and H51q systems. The unit works with F7126 power supply modules as associated PSUs. Additionally, status bits map automatically to the central unit diagnostics for user program access.
Details
| Weight | 0.16 kg |
|---|---|
| Dimensions | 70 × 70 × 50 mm |

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