1. General Description

Model: F 3322
Manufacturer: HIMA
System Compatibility: HIQuad / HIMax safety systems (depending on system generation)
Module Type: Safety Digital Output Module
Safety Level: Suitable for SIL 3 applications (when used within a certified HIMA safety system)

The F 3322 is a safety-related digital output module designed for controlling field devices in critical applications such as emergency shutdown (ESD), fire & gas (F&G), and turbine protection systems.

2. Technical Specifications (Typical)

Number of Outputs:

8 digital outputs (model-dependent configuration may vary)

Output Type:

24 VDC transistor outputs

Short-circuit and overload protected

Output Signal Type:

Safety-related switching signals

Suitable for driving relays, contactors, solenoids, and actuator interfaces

Rated Voltage:

24 VDC

Current Rating:

Typically up to 0.5 A per channel (refer to exact hardware revision)

Power Supply:

Supplied via system backplane

Diagnostics:

Line monitoring

Short circuit detection

Open circuit detection (depending on configuration)

Status LEDs per channel

Isolation:

Galvanic isolation between system and field side

3. Core Functions
Safety Output Control

Executes safe switching commands from the safety CPU

De-energize-to-trip principle (fail-safe design)

Supports safety interlocking logic

Diagnostics & Monitoring

Continuous channel monitoring

Fault reporting to CPU

LED status indication

Integration

Communicates via system bus

Configurable through HIMA engineering tools

Supports redundant system architectures

4. Typical Applications

Emergency Shutdown (ESD) systems

Fire & Gas protection systems

Turbine trip systems

Burner management systems

High-risk process interlocking

Typical Applications

Petrochemical ESD and Fire & Gas (F&G) systems

Boiler and turbine safety protection in power plants

Safety interlocking of high-risk equipment in metallurgy and mining

Offshore platform and FPSO safety control systems