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HIMA 984012100 power module
HIMA 984012100
Product Overview
HIMA 984012100 is a high-performance power supply module designed by HIMA for its H41q and H51q safety control systems. This module plays a critical role as the “power heart” in the Safety Instrumented System (SIS). Its core function is to provide stable, reliable, and redundant DC power for all modules (including CPU, I/O modules, etc.) in the entire H41q/H51q rack.
Adopting advanced switching power supply technology and redundant design concepts, the HIMA 984012100 power supply module can operate within a wide input voltage range and features excellent load regulation and line regulation. This ensures that the output remains stable at all times even when there are load fluctuations or changes in input voltage. The module supports N+1 redundant configuration; in case a single power supply module fails, other modules can seamlessly take over the entire load, ensuring uninterrupted system operation.
Its comprehensive diagnostic function can real-time monitor parameters such as input voltage, output voltage, load current, and temperature, ensuring the healthy status of the power supply system. This provides the highest level of power supply reliability for the safety control system and meets the requirements of SIL 3 safety integrity level.
Product Parameters
- Product Model: 984012100
- Manufacturer: HIMA
- Product Type: Power Supply Module (Redundant Power Supply System)
- Input Voltage: 120/230VAC (automatic switching), 50/60Hz
- DC Input: 125VDC (optional)
- Output Voltage: +5.1VDC (logic power supply) and +24VDC (I/O power supply)
- Output Power: 100W (total continuous output power)
- +5.1VDC Output: Maximum 10A
- +24VDC Output: Maximum 3A
- Efficiency: >85% (at rated load)
- Hold-up Time: >20ms (when input power is cut off)
- Protection Functions: Overcurrent protection, overvoltage protection, overheating protection
- Operating Temperature: 0°C to +60°C
- Storage Temperature: -40°C to +85°C
- Safety Certification: SIL 3 (in accordance with IEC 61508/61511)
- Installation Method: Installation in dedicated power supply slot
Structure and Composition
The HIMA 984012100 power supply module adopts a robust metal housing design, which offers excellent heat dissipation performance and electromagnetic shielding properties. The front panel of the module is equipped with multiple groups of status indicator lights, including indicators for power input status, output voltage status, fault status, and redundancy status.
Its internal structure adopts a modular design, mainly including an input filter circuit, a Power Factor Correction (PFC) circuit, a high-frequency switching transformer, a rectifier filter circuit, and a precision monitoring and protection circuit. The input filter circuit effectively suppresses electromagnetic interference from the power grid side; the PFC circuit improves energy utilization efficiency; the high-frequency switching transformer and power switching devices realize AC-DC conversion; and the monitoring and protection circuit real-time monitors various parameters and implements corresponding protection measures. The module is connected to the rack backplane through a multi-pin connector at the rear, providing stable and reliable power supply for the entire rack.
Application Fields
The HIMA 984012100 power supply module is specifically designed for safety-critical applications that require high-reliability power supply. In the petrochemical industry, it provides reliable power for the Emergency Shutdown System (ESD) of oil refineries and chemical plants; in the natural gas field, it supplies power for the safety protection systems of gas pipeline stations; in thermal power plants and nuclear power plants, it provides power for the Burner Management System (BMS) and safety shutdown systems; on oil and gas exploration platforms, it ensures the uninterrupted operation of the Fire and Gas Detection System (F&G); in railway signal systems and other safety-critical applications, it serves as the energy source to ensure reliable system operation. All occasions that require SIL 3 level safety assurance are application fields for the 984012100 power supply module.
Installation and Maintenance
Pre-installation Preparation
Before installing the HIMA 984012100 module, it is essential to ensure that the system power supply is completely disconnected. Check whether the rack power supply slot and connector are in good condition, and confirm that the input power voltage is consistent with the module’s requirements. Prepare appropriate power cables and ensure that the wire diameter meets the current requirements. Operators must wear an anti-static wristband to prevent electrostatic damage to electronic components.
Maintenance Recommendations
Regularly check the module’s status indicator lights to confirm that the input and output statuses are normal. Maintain good ventilation for the module and regularly clean the dust from the heat dissipation holes. It is recommended to regularly check whether the input power connections are secure and whether the output load is within the rated range.
When a module needs to be replaced, it must be done after the system is powered off. First, disconnect all power connections, then loosen the fixing screws and pull out the old module smoothly. When installing a new module, ensure that the connector is fully inserted, and turn on the power only after it is securely fixed.
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