HIMA F8623B Safety Digital Output Module

Technical Specifications

Model:F8623B

Brand:HIMA

Safety certification:SIL3,IEC61508,TÜV certified

Channel:4-channel safety relay output

Rated output:24V DC relay contact output

Diagnosis:Per-channel wire break and short circuit monitoring

Mounting:Plug-in subrack installation,support hot swap

Protection class:IP20

Power supply:24V DC

Operating temperature:-20~+60℃

Relative humidity:5~95% non-condensing

Weight:0.38kg

Certification:CE

System compatibility

Designed for HIMA H41q safety system,controls field safety valves and solenoid actuators,widely used in petrochemical,chemical plant ESD emergency shutdown and F&G fire gas protection system.

Function

SIL3 4-channel safety digital output module.It receives safety commands from H41q safety CPU and drives field safety actuators.Each channel has independent line diagnosis.When wire break,short circuit or relay fault detected,the module triggers fault alarm and automatically switches output to safe state.

Installation

Plug into H41q rack backplane,wire field solenoid valves to front terminals,configure safety logic via SILworX engineering software.

Interface

‑4 channels relay output terminals

‑Backplane safety bus connector

‑LED indicators for channel,run and fault status

Circuit feature

1oo2 fail-safe safety architecture,continuous hardware self-test,strong anti-electromagnetic interference,meets SIL3 functional safety requirements for hazardous industrial environment.

Feature

H41q series SIL3 safety DO module F8623B. Common faults:relay contact aging,terminal connector failure,output circuit damage.Confirm rack firmware version before replacement.

Diagnostic

Output circuit wire break,short circuit or relay failure triggers channel fault alarm;controller executes safety interlock logic.

Built‑in function

F8623B executes safety shutdown command output for SIS safety instrumented system emergency shutdown protection,widely used for process plant safety spare replacement.

Product Brief

F8623B belongs to HIMA H41q family,plug-in SIL3 4-channel relay digital output module for H41q safety subrack. Verify rack compatibility before ordering.Test output action and fault diagnosis function during commissioning. ESD anti‑static protection shall be followed during installation.