Products Description
HIMA F34228 Safety Relay Output Module

Technical Specifications
Model:F34228
Brand:HIMA
Safety certification:SIL3,IEC61508,TÜV certified
Channel:8-channel relay output
Output type:Floating NO contact,max 30V AC/DC,max 120W
Diagnosis:Relay circuit periodic self-diagnosis
Mounting:Plug-in subrack installation,4TE width
Protection class:IP20
Power supply:24V DC
Operating temperature:-20~+60℃
Relative humidity:5~95% non-condensing
Weight:0.42kg
Certification:CE
System compatibility
Special variant version of F3422,designed for HIMA HIQuad H41q / H51q safety system,used for field safety trip circuit control,widely used in petrochemical,chemical plant ESD emergency shutdown and F&G fire gas protection system.
Function
SIL3 8-channel safety relay output module.It receives safety shutdown commands from HIQuad controller,uses relay normally open floating contact to switch field safety circuits,built-in periodic hardware self-test.In safety trip condition,the relay contact will switch to safe state to realize fail-safe protection.
Installation
Plug into HIQuad H41q/H51q rack backplane,wire field safety loads to module terminals,complete hardware configuration via ELOPII engineering software.
Interface
‑8 channels relay contact terminals
‑Backplane safety bus connector
‑LED indicators for channel status and fault
Circuit feature
1oo2 fail-safe safety architecture,periodic hardware self-test,strong anti-electromagnetic interference,meets SIL3 functional safety requirements for hazardous industrial environment.
Feature
HIQuad series special variant SIL3 8-channel relay output module F34228. Common faults:relay contact aging,internal circuit failure,connector pin failure.Confirm H41q/H51q rack firmware version before replacement.
Diagnostic
Module or wiring fault triggers alarm;controller executes safety trip interlock logic.

Built‑in function
F34228 provides relay contact switching commands for SIS safety instrumented system emergency shutdown and fire protection interlock,widely used for chemical and power plant safety spare replacement.
Product Brief
F34228 belongs to HIMA HIQuad I/O family,plug-in SIL3 relay output module (special variant of F3422) for H41q/H51q safety subrack. Verify rack compatibility before ordering. Test relay action and diagnosis function during commissioning. ESD anti‑static protection shall be followed during installation.