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HIMA LM002_maX 985020002 Framework Module
HIMA LM002_maX 985020002
HIMA LM002_MAX 985020002 is a framework module for Safety Instrumented System (SIS) launched by HIMA, and it serves as a core component of the HIMA LM series. This product is mainly used to build safety control systems that meet the requirements of SIL 3 (Safety Integrity Level 3) , and is widely applied in key process safety protection for high-risk industries such as petrochemicals, metallurgy, electric power, and environmental protection.
1. Overview
- Product Positioning : It acts as a “Framework” module for safety systems, providing a hardware platform, communication bus, system management, and diagnostic functions to support the insertion and assembly of other function cards (including I/O cards, processing cards, redundant power supplies, etc.).
- Core Value : It achieves high reliability, redundant design, and comprehensive safety diagnostics, helping users quickly build safety instrumented systems that comply with the IEC 61511/ISA-84 standards.
2. Main Technical Parameters (Typical Values)
- Model : LM002_MAX (985020002)
- Safety Integrity Level : SIL 3 (compliant with IEC 61511 )
- Redundant Structure : Dual-redundant CPU, dual-redundant power supply, and dual-channel communication bus
- Processor : High-reliability industrial-grade CPU (based on PowerPC/ARM; specific model varies by version)
- Communication Interfaces : Multi-protocol support including PROFIBUS , PROFINET , Ethernet/IP , Modbus TCP , and HART
- I/O Expansion : Supports pluggable function cards (such as digital/analog input, output, and fieldbus cards)
- Operating Temperature : -25 °C ~ +55 °C (wide-temperature version optional)
- Protection Level : IP20 (inside the cabinet); IP65 protection can be achieved with a matching enclosure
- Power Supply : 24 V DC dual-redundant power supply, supporting UPS power supply
- Certifications : CE, UL, and compliance with IEC 61508/61511 safety standards
3. Product Features
- Modular and Pluggable Design : The framework body provides a unified backplane, allowing users to flexibly select and configure function cards (such as I/O, communication, and redundant power supply cards) based on on-site requirements.
- Dual-Redundant Safety Design : Redundant dual channels are implemented for CPU, bus, and power supply, ensuring that a single-point fault does not affect the safety functions of the system.
- Comprehensive Self-Diagnosis : Real-time monitoring of hardware status, communication integrity, and internal verification is performed, with faults triggering immediate alarms on HMI/SCADA.
- Multi-Protocol Compatibility : Built-in industrial fieldbuses including PROFIBUS , PROFINET , Ethernet/IP , and Modbus TCP , enabling seamless connection with on-site equipment.
- Compliance with International Safety Standards : It has passed safety integrity assessments such as IEC 61508/61511 and EN 954-1 , meeting the requirements of SIL 3 .
- Easy Expansion : Supports subsequent upgrades of function cards (e.g., analog input cards with higher resolution, dedicated safety valve driver cards), extending the system lifespan to over 15 years.
4. Structure and Composition
- Framework Body (Backplane) : Provides power distribution, bus connection, and card slot positioning.
- Dual-Redundant CPU Cards : Core processing units that run Safety Logic and system management software.
- Redundant Power Supply Modules : 24 V DC dual-channel power supply with battery backup or UPS interface.
- Communication Card Slots : Allow insertion of fieldbus cards such as PROFIBUS , PROFINET , and Ethernet/IP cards.
- I/O Card Slots : Support various input/output cards, including digital, analog, and fieldbus cards (e.g., FOUNDATION Fieldbus cards).
- Diagnostic/Monitoring Modules : Provide system health status, fault logs, and remote diagnostic interfaces.
5. Typical Application Fields
- Petrochemical Industry : Safety valve control, leak detection, and Emergency Shutdown (ESD) systems.
- Metallurgy and Iron & Steel Industry : High-temperature furnace temperature monitoring and safety protection for smelting processes.
- Electric Power and Energy Industry : Generator sets, substation automation, and safety shutdown for wind power/photovoltaic systems.
- Water Treatment and Environmental Protection Industry : Safety monitoring for sewage treatment plants, waste gas treatment, and hazardous chemical storage tanks.
- Pharmaceutical and Food Industry : Safety valve and emergency shutdown systems for key processes.
6. Key Points for Installation and Maintenance
On-Site Preparation
- Confirm that the cabinet size, ventilation and heat dissipation, and grounding meet the requirements of IEC 60204-1 .
- Reserve sufficient cable slots to ensure separate routing of dual-redundant power supply and communication lines.
Hardware Installation
- Fix the framework body in the cabinet; first install the dual-redundant power supply modules, then insert the CPU cards, communication cards, and I/O cards in sequence.
- All card slots adopt a snap-lock design to prevent loosening during insertion and removal.
Wiring
- Complete the wiring of 24 V DC power supply, fieldbus, and sensors/actuators in accordance with the wiring diagram.
- Dual-redundant lines must be routed through different paths to prevent single-point faults.
System Configuration
- Use the engineering software provided by HIMA (e.g., HIMA Safety Configurator ) for Safety Function Block (SFC) programming, SIL assessment, and parameter setting.
- Configure safety parameters such as self-diagnosis thresholds, alarm levels, and communication timeouts.
Commissioning and Acceptance
- Conduct functional tests (including input/output, valve closing, and fault switching) to verify that the dual-redundant switching time complies with specifications (≤ 10 ms).
- Record the test report and complete the IEC 61511 compliance documents.
Daily Maintenance
- Regular Inspection: Check the status of the power supply, card slot connections, and cooling fans every 6 months.
- Firmware Upgrade: Perform firmware updates based on the security patches released by HIMA official to ensure the system always complies with the latest safety standards.
- Fault Diagnosis: Use the system’s self-diagnostic logs to quickly locate hardware or communication faults, and replace the corresponding function cards if necessary.
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