Name: ICS Triplex T9451 | Trusted TMR Digital Output - XINYEDA
Brand: ICS Triplex

Description

T9451: Technical Specifications

Model Number: T9451

Manufacturer: ICS Triplex

Product Type: Triple Modular Redundant TMR Digital Output Module

Number of Channels: 8 digital outputs

Output Type: Sourcing (PNP)

Output Voltage: 24V DC nominal (18-30V DC range)

Output Current: 2A per channel maximum

Power Supply: 24V DC

Power Consumption: 15W maximum

Operating Temperature: -40°C to +70°C

Storage Temperature: -40°C to +85°C

Relative Humidity: 5% to 95% non-condensing

Isolation: 1500V RMS channel-to-channel

Response Time: <1ms

Safety Certification: SIL 3 per IEC 61508

Protection: Short-circuit, overload, and reverse polarity

Connector Type: Removable screw terminal block

Dimensions: 30mm × 130mm × 150mm

Weight: 0.8kg

ICS TRIPLEX T9451

Core Features & Customer Value

Triple Modular Redundant Architecture: The T9451’s TMR design incorporates three separate processing channels that execute identical operations and vote on outputs. For engineering teams responsible for safety system design, this architecture provides fault tolerance that prevents single component failures from causing dangerous system states. The voting logic automatically masks faulty signals from the remaining healthy channels, maintaining control system integrity while alerting operators to the need for maintenance. This capability ensures that the system can continue operating safely even with a failed component, allowing maintenance to be scheduled during planned shutdowns rather than causing unplanned production interruptions.

High-Current Output Capability: The module’s 2A per channel output capability enables direct control of field devices such as solenoid valves and motor starters without requiring additional interface relays. For system designers, this high current handling capacity reduces component count and simplifies panel layout by eliminating the need for intermediate relay modules. The built-in short-circuit and overload protection features prevent damage to the module and connected field devices during fault conditions, reducing maintenance costs and improving system reliability.

Comprehensive Diagnostic Coverage: The module performs continuous self-monitoring of all critical components, including output drivers, power supplies, and communication interfaces. This diagnostic capability provides early detection of potential failures before they affect system operation. For maintenance personnel, the detailed fault reporting through front-panel indicators and system software reduces troubleshooting time and enables targeted component replacement. The module can detect open circuit conditions, short circuits, and overload conditions, providing specific fault information that helps technicians quickly identify and resolve issues.

Robust Protection Features: The output channels include comprehensive protection against short-circuits, overloads, and reverse polarity conditions. These protection features prevent damage to the module and connected field devices during abnormal operating conditions. For plant operators, this robust protection translates to reduced maintenance requirements and improved system uptime, particularly in harsh industrial environments where electrical faults are more likely to occur.

ICS TRIPLEX T9451

Typical Applications

The ICS Triplex T9451 is extensively deployed in safety-critical process control applications within hydrocarbon processing facilities. In emergency shutdown systems (ESD), the module typically controls critical shutdown valves and process isolation devices. The module’s fast response time (<1ms) ensures that safety functions are executed within the required safety time constraints, while the SIL 3 certification provides the necessary safety integrity for these critical applications.

In fire and gas detection systems, the T9451 activates fire suppression systems, emergency ventilation dampers, and alarm systems. The module’s high current capability allows direct control of solenoid-operated deluge valves without requiring intermediate relays, simplifying system architecture and improving reliability. The triple modular redundancy ensures that safety functions remain operational even during component failures, meeting the high availability requirements of life safety systems.

For compressor control applications in natural gas transmission pipelines, the module provides control signals for anti-surge valves and fuel gas shutdown valves. The wide operating temperature range (-40°C to +70°C) allows deployment in unmanned compressor stations where environmental control may be limited. The module’s robust construction and high immunity to electrical noise ensure reliable operation in the electrically noisy environments typical of compressor facilities.

In power generation applications, particularly in turbine control systems, the T9451 provides outputs for fuel shutoff valves and steam control valves. The module’s comprehensive diagnostic capabilities provide early warning of developing issues that could affect unit reliability, while the hot-swappable design allows for maintenance without taking the unit offline. In these applications, the module’s ability to maintain control during component failure ensures continuous power generation while allowing for planned maintenance during unit outages.

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