HIMA F3221 Digital Input Module

Technical Specifications

Model:F3221

Brand:HIMA

Safety certification:SIL2,IEC61508,SN certified

Signal:16-channel digital input

Input signal:24V DC mechanical contact or 8mA 1-signal

Switching time:Typ.10ms

Mounting:Plug-in subrack installation,4TE width

Protection class:IP20

Power supply:5V DC /24V DC

Operating temperature:-20~+60℃

Relative humidity:5~95% non-condensing

Weight:0.40kg

Certification:CE

System compatibility:Designed for HIMA HIQuad H41q / H51q safety system,collects discrete signals from limit switches,proximity sensors and field contact devices,widely used in petrochemical,chemical plant ESD emergency shutdown and F&G fire gas protection system.

Function:Safety isolated digital input module.Receives contact or 8mA sensor signals from field equipment,transmits status data to safety controller.Channel signals are non-interacting,supports continuous wiring monitoring.

Installation:Plug into HIQuad H41q/H51q rack backplane,wire field sensors to module terminals,complete hardware configuration via ELOPII engineering software.

Interface:

‑16 channels of digital input terminals

‑Backplane bus connector for power and data exchange

‑LED indicators for channel status and fault

Circuit feature:Safety isolation architecture,non-interacting channel design,periodic hardware self-test,strong anti-electromagnetic interference,meets IEC61508 functional safety requirements for hazardous industrial environment.

Feature:HIQuad system 16-channel safety input module F3221. Common faults:channel circuit damage,signal acquisition abnormal,connector pin failure.Confirm H41q/H51q system version before replacement.

Diagnostic:Module or wiring fault triggers channel fault alarm;controller marks corresponding input signal invalid and executes safety interlock logic.

Built‑in function

F3221 collects field discrete safety signals for safety interlock and emergency shutdown protection,widely used for chemical and power plant safety spare replacement.

Product Brief

F3221 belongs to HIMA HIQuad I/O family,plug-in 16-channel safety isolated digital input module for H41q/H51q safety subrack. Verify rack compatibility before ordering. Test signal acquisition function during commissioning. ESD anti‑static protection shall be followed during installation.