HIMA F3322 Overview
1. General Information
- Manufacturer: HIMA Paul Hildebrandt GmbH
- Model: F3322
- Type: Safety-related Digital Output Module
- Country of origin: Germany
- Applicable systems: HIMA Safety PLC, HIMax, H41q, H51q
- Typical applications:
- Emergency Shutdown Systems (ESD)
- Fire & Gas (F&G) systems
- Burner Management Systems (BMS)
- Turbine protection systems
- Safety Instrumented Systems (SIS) in oil & gas and petrochemical industries
This module is used to output safety digital signals to field actuators, such as:
- Solenoid valves
- Contactors
- Relays
- Actuators
- Indicator lamps
It is designed for SIL3 safety applications.
2. Core Functions
The F3322 is a 16-channel digital output module designed for safety-critical industrial environments.
Main functions:
- Provides reliable safety digital output signals
- Supports both De-energize-to-Trip and Energize-to-Trip safety logic
- Integrated short-circuit protection and safety isolation
- Individual LED status indication per channel
- Supports parallel load control
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Output channels | 16 channels |
| Load per channel | 0.5 A (500 mA) |
| Maximum power | 12 W per channel |
| Load type | Resistive and inductive loads |
| Power supply | 5 VDC + 24 VDC |
| Current consumption | 5V: 110 mA / 24V: 150 mA + load |
| Short-circuit threshold | >550 mA |
| Module width | 4TE |
| Max modules per rack | 10 modules |
| Max simultaneous output load | 8 A |
| Recommended fuse | 4A slow-blow |
4. Key Safety Features
Safe shutdown behavior
If the L− power supply is interrupted, all outputs are automatically switched off to prevent unintended operation.
Short-circuit protection
- Built-in current limiter
- Automatic shutdown during short circuit
- Operation can resume after fault removal
High reliability design
- Parallel switching supported without external diodes
- Suitable for continuous operation
- Designed for high-availability safety systems
5. System Design Limits
When designing an I/O rack:
- Maximum 10 F3322 modules per I/O sub-rack
- Maximum 8 A simultaneous output load
These limits are important for SIS system engineering.
6. Typical Application Industries
Oil & Gas
- Emergency shutdown valve control
- Fire & gas system outputs
Power & Turbomachinery
- Turbine trip signals
- Generator protection interlocks
Chemical Industry
- Safety interlock systems
- Control of hazardous-area equipment
Core Products & Services:
- Control Systems (DCS, PLC, CNC)
- Control Panels & Panel Controllers
- Human Machine Interfaces (HMI) & Display Panels
- Drives & Servo Motors
- Encoders & Resolvers
- Industrial Power Supplies
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