Description
HIMA F35
Technical Specifications
- Product Type: Safety PLC rack and backplane system
- Safety Level: SIL3 certified for complete system with qualified modules
- Bus Type: HIMatrix high speed safety backplane bus
- Module Slots: Multiple configurable slots for CPU and I/O modules
- Power Supply: 24VDC redundant power supply connection
- Protection Rating: IP20
- Operating Temperature: -10 °C to +60 °C
- Mounting: Standard DIN rail mounting
- Certification: TÜV, IEC 61508 SIL3
Functional Features
- Backplane safety bus provides high speed secure data communication between CPU and I/O modules.
- Standard DIN rail rack structure supports flexible combination of CPU, digital I/O and analog I/O modules.
- Supports redundant power supply input to increase system availability.
- Hot-slot design allows approved modules to be replaced without full system shutdown.
- Backplane circuit continuously monitors bus communication integrity.
- Mechanical locking structure ensures secure module insertion and vibration resistance.
- Module slot identification function automatically detects installed module type.
- Built-in bus fault detection and alarm function.
- Galvanic isolation for backplane bus circuit.
- Scalable slot quantity to match different safety I/O point requirements.
Application Scenarios
- Petrochemical emergency shutdown safety system rack assembly
- Boiler burner management safety control cabinet
- Offshore platform safety instrumented system
- Chemical plant reactor safety interlock cabinet
- Power plant boiler safety trip control system
Material Composition
- Rack frame: Reinforced flame-retardant plastic frame
- Backplane PCB: FR4 high reliability printed circuit board
- Bus connectors: Gold-plated copper female contact sockets
- Terminal block: Copper alloy screw terminals for power supply
- DIN rail clip: Spring steel clip for DIN rail mounting
- Mounting hardware: Reinforced plastic locking latches
Structural Characteristics
- Horizontal rack frame mounted on DIN rail.
- Multiple vertical slots for inserting HIMatrix safety modules.
- Internal backplane PCB runs along the rack rear side, connecting all module slots.
- Power supply terminals located at rack end for 24VDC power input.
- Each slot has gold-plated bus connector for module electrical connection.
- Module locking latches secure each module mechanically into the slot.
Working Principle 24VDC power supply feeds the backplane to supply power to all inserted modules. The safety backplane bus provides bidirectional digital communication channel between CPU module and each I/O module. The bus transmits safety input data from I/O modules to CPU and sends safety output commands from CPU to I/O modules. Backplane hardware monitors bus signal integrity continuously. When communication interruption occurs, the system forces all safety outputs to predefined safe state.
Installation Requirements
- Mount F35 rack horizontally on standard DIN rail inside control cabinet.
- Maintain clearance above and below rack for air circulation.
- Use redundant 24VDC power supply for high availability safety system.
- Complete protective earth connection for rack and cabinet.
- Insert modules one by one into slots and lock latches securely.
- Wire power supply terminals with proper wire gauge and torque.
- Perform full bus communication test after module assembly.
Usage Notes
- Only use certified HIMatrix F35 series modules in this rack.
- Do not insert incompatible modules into rack slots.
- Keep cabinet dry and free of corrosive gas and conductive dust.
- Check module locking latches under high vibration environment regularly.
- Disconnect power before removing backplane or rack frame.
- Do not modify backplane circuit components.
- Perform full system proof test after module replacement or reconfiguration.
