Description
HIMA F7131 981713102
Technical Specifications
- Product Type: Rack power monitoring module
- Part Number: 981713102
- Monitored Power Range: Rack internal DC power rails
- Signal Interface: HIQuad rack backplane bus
- Diagnostic Function: Undervoltage, overvoltage, overload and power loss detection
- Protection Rating: IP20
- Operating Temperature: -10 °C to +60 °C
- Mounting: Subrack rack slot mounting
- Indicator: LED indicators for module status and power fault alarm
Functional Features
- Real-time monitoring of multiple DC power rails inside HIQuad safety rack.
- Detect undervoltage, overvoltage, overload and power loss conditions.
- Transmit power diagnostic and fault data to safety CPU via backplane bus.
- LED indicators display module running status and power fault alarm.
- Galvanic isolation between monitored power circuit and internal logic circuit.
- High sampling rate for fast power fault detection.
- Fault latch function retains fault status until manual reset.
- Support redundant power supply monitoring for high availability system.
- Built-in self-test runs automatically during startup.
- Power fault signal participates in safety system alarm logic.
Application Scenarios
- HIQuad safety PLC rack power condition monitoring
- Petrochemical plant emergency shutdown system power supervision
- Boiler burner management safety cabinet power monitoring
- Offshore platform safety instrumented system rack power supervision
- Power plant safety interlock cabinet power monitoring
Material Composition
- Front panel: Reinforced metal front panel with LED indicators
- Main PCB: FR4 high reliability printed circuit board with conformal coating
- Monitoring components: Precision voltage and current sampling resistors
- Processing chips: Safety certified logic ICs
- Isolation components: Optocoupler isolation chips
- Backplane connector: Gold-plated copper contact pins
- Housing: Metal shielding frame
Structural Characteristics
- Standard subrack width module for HIQuad rack slot installation.
- Metal front panel equipped with LED status indicators.
- Rear gold-plated edge connector inserts into rack backplane bus.
- Internal sampling circuit connects to rack power rails for power measurement.
- Internal metal shielding reduces electromagnetic interference.
- Compact internal layout separates sampling circuit and logic circuit.
Working Principle The module samples voltage and current signal from each rack DC power rail continuously. Sampled analog signal is converted to digital value and compared against predefined threshold values. When undervoltage, overvoltage, overload or power loss condition is detected, the module latches fault status and sends fault information to safety CPU via backplane bus. LED fault indicator activates simultaneously. Built-in self-test verifies sampling and communication circuit during startup.
Installation Requirements
- Insert F7131 module into designated slot of HIQuad rack.
- Ensure reliable backplane connector contact.
- Complete protective earth connection for module metal frame.
- Configure power threshold parameters in safety programming software.
- Perform power fault simulation test after installation.
- Verify communication link with safety CPU before rack commissioning.
Usage Notes
- Do not hot plug module when rack power remains active.
- Keep cabinet dry and free of corrosive gas and conductive dust.
- Backup safety program before modifying power monitoring threshold parameters.
- Check backplane connector tightness periodically under vibration environment.
- Do not modify internal sampling circuit components.
- Reset fault latch only after power fault root cause is resolved.
- Replace module immediately when permanent monitoring hardware fault occurs.
