F7553 HIMA Multifunctional Processor Module

Description

F7553 HIMA Multifunctional Processor Module

Product Dimensions：

Product Description

The F7553 is a specialized power supply unit that converts input voltage into the regulated DC voltages required for the operation of HIMA safety controllers. It is designed for parallel operation and redundancy, ensuring that the safety system remains operational even if a single power source fails. The module includes integrated monitoring functions that signal the system status and power health, which is critical for maintaining the safety loop in industrial environments.

Product Parameters

• Input Voltage: Typically 24 V DC (with an operating range of 18.5 to 30 V DC).

• Output Voltage: Regulated 5 V DC for internal logic and bus communication.

• Output Current: Designed to provide sufficient amperage for a fully loaded HIMA subrack (typically up to 12 A, depending on configuration).

• Monitoring Outputs: Includes “Power OK” signaling and overvoltage/undervoltage detection.

• Safety Class: Suitable for use in systems up to SIL 3 according to IEC 61508.

• Mounting: Specifically designed for the HIMA 19-inch subrack systems.

• Redundancy: Supports n+1 redundancy configurations when used with multiple modules.

Product Advantages

• Safety Integrity: Developed under the strict HIMA safety lifecycle, making it a trusted component for emergency shutdown (ESD) systems.

• Redundant Capability: Built-in decoupling diodes and monitoring allow multiple units to be connected in parallel for high availability.

• Advanced Supervision: The module monitors both its own output and the status of the input supply, providing early warnings before a system failure occurs.

• High Efficiency: Low heat dissipation ensures a longer lifespan for both the power supply and the surrounding electronic components.

• Hot-Swappable: In redundant configurations, the module can be replaced while the system is under load without interrupting the process.

Important Considerations and Precautions

• Load Calculation: Always calculate the total current consumption of all modules in the subrack to ensure the F7553 units are not overloaded.

• Cooling and Ventilation: Ensure adequate airflow within the cabinet. While efficient, concentrated heat in enclosed spaces can reduce the MTBF (Mean Time Between Failures).

• Earthing: Proper grounding of the HIMA rack is essential to prevent common-mode noise from affecting the power stability.

• Voltage Spikes: While the unit has internal protection, external surge protection is recommended for the primary 24 V DC supply to prevent damage from lightning or heavy machinery switching.

Product Applications

• Emergency Shutdown (ESD) Systems: Providing reliable power to logic solvers in oil refineries and chemical plants.

• Fire and Gas (F&G) Systems: Ensuring continuous operation of detection and alarm systems in hazardous areas.

• Burner Management Systems (BMS): Powering the safety logic required for the controlled startup and shutdown of industrial boilers and furnaces.

• Pipeline Protection: Used in remote station controllers for leakage detection and valve control where high availability is mandatory.

• Nuclear and Power Plants: Supporting safety-critical control loops for turbine protection and reactor supervision.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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