Triconex 3511 TMR Pulse Input Module

Technical Specifications

Model:3511

Brand:Triconex

Product Type:TMR triple modular redundant pulse input module

Channel Count:8 isolated differential pulse input channels,AC‑coupled

Frequency Range:0.5 Hz‑20000 Hz

Input Voltage:1V‑24V peak‑to‑peak,adapt for magnetic pickup / active pulse sensor

Measurement Accuracy:±0.01%(1000Hz‑20000Hz)

Update Rate:25 ms TMR voting cycle

Input Impedance:＞8kΩ

Common‑mode Range:‑100V ~ +100V peak‑peak

Over‑range Protection:±150VDC continuous

Isolation:1000VDC field‑to‑backplane isolation

Architecture:2‑out‑of‑3 TMR hardware voting,three independent signal processing paths

Safety Level:SIL3 IEC61508 TÜV certified

Feature:Hot‑swap supported,comprehensive background self‑diagnosis,front‑panel PASS/FAULT/ACTIVE & per‑channel LED indicator

System Compatibility:Tricon SIS v9/v10/v11 rack

Remark:Must install inside Tricon rack,match Tricon CPU,power supply and backplane;legacy EOL spare component

Module Form:Standard rack plug‑in module

Weight:3.75 kg

Dimension:490 mm×453 mm×68 mm

Protection Grade:IP20

Certification:SIL3,TÜV,CE

Working Temperature:‑40℃ ~ +70℃,non‑condensing

Storage Temperature:‑40℃ ~ +85℃

Humidity:5%‑95% non‑condensing

Application:Petrochemical,oil & gas,power plant steam turbine,compressor overspeed protection SIS system,collect magnetic pickup pulse signal,real‑time rotational speed measurement,system maintenance and spare‑part replacement.

Product Details

3511 is TMR triple‑modular‑redundant pulse input module for Triconex Tricon safety instrumented system. It is specially designed for high‑precision speed and pulse signal acquisition,mainly for turbine and compressor overspeed protection loop.

Adopts AC‑coupled differential input,suitable for magnetic‑pickup speed sensors;8 isolated channels,each signal processed by three independent circuit paths under 2oo3 hardware voting,single‑sub‑circuit fault will not cause wrong speed calculation. 25ms voting update rate meets overspeed fast response requirement,high measuring accuracy for high‑frequency pulse. 1000VDC isolation improves anti‑interference performance for industrial field.

Hot‑swap design allows module replacement without SIS system shutdown. Front‑panel LED shows module status and each channel signal state,with continuous background self‑diagnosis function. Widely deployed in petrochemical,power industry turbine & compressor safety overspeed protection racks.

Note:This is legacy EOL spare component,widely used for safety system spare‑part replacement.