Product Details:

TRICONEX 2553 also known as DI2553 is an 8-channel digital input module built with triple modular redundancy (TMR) architecture for Triconex Tricon safety instrumented systems (SIS). This TMR safety I/O module collects 24VDC discrete signals from field emergency stop buttons, pressure switches, limit switches and dry contact devices, and converts these on-site status signals into digital data for the Tricon main controller. The Tricon digital input module adopts per-channel opto-isolation design with 1500V isolation rating, which can effectively eliminate ground loop noise and electromagnetic interference from field wiring. It supports configurable input threshold to adapt to different field signal requirements. Continuous built-in channel diagnostics can detect open circuit, short circuit and internal hardware anomalies, and send fault alarm information to the Tricon engineering workstation in real time. The module supports hot swap operation, maintenance personnel can replace the faulty unit online without shutting down the whole safety system. Front panel LED indicators display module health status and each channel signal state for fast on-site inspection and troubleshooting. It adopts 2-out-of-3 voting logic to avoid single point of failure and fully meets SIL3 safety integrity level requirements. It can be installed in standard Tricon rack and cooperates with Tricon processor and other I/O modules. Widely applied in oil & gas, petrochemical, chemical and power industries, this TRICONEX 2553 digital input module is used for ESD emergency shutdown, fire and gas monitoring and burner management safety control systems.

Specifications:

Manufacturer: TRICONEX (Schneider Electric)

Model: 2553 (DI2553)

Product Type: Tricon 8-channel Digital Input Module

System Compatibility: Tricon TMR Safety Instrumented System

Input Channels: 8 isolated digital input channels

Nominal Input Voltage: 24VDC

Input Current: 8mA typical per active channel

Architecture: Triple Modular Redundancy(TMR), 2-out-of-3 voting

Safety Level: SIL3 certified

Isolation: 1500V channel galvanic isolation

Diagnostics: Open circuit, short circuit and hardware fault detection

Feature: Hot swappable, configurable input threshold

Status Indicator: LED indicators for module health and each channel status

Mounting: Tricon rack plug-in

Operating Temperature: -40℃ ~ +70℃

Humidity: 5% to 95% non-condensing

Certifications: IEC61508, SIL3, ATEX, CE