The ICS TRIPLEX T9451 is part of the AADvance Series Digital Output Modules, designed for industrial automation and safety control systems. Functioning as a digital output module, it converts digital signals from controllers into control digital signals from controllers into control signals for field devices. It supports safety-integrated systems (SIS), complies with the IEC 61508 functional safety standard, and can be configured to Safety Integrity Level (SIL) 2/3.
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Technical Parameters
Electrical Characteristics
Operating Voltage: 18–32 Vdc (redundant power input).
Output Specifications: 8 isolated output channels.
Maximum continuous current per channel: 0.5 A; inrush current: 1.5 A (instantaneous).
Output type: dry contact or solid-state relay (depending on configuration).
Channel Isolation: Isolation voltage between channels and chassis: ±1.5 kVdc (withstand for 1 minute).
Safety Characteristics
Safety Integrity Level (SIL):
Single-channel configuration: SIL 2; dual-channel redundant configuration: SIL 3.
Safe Failure Fraction (SFF): ≥90% (complies with IEC 61508 requirements for high-reliability systems).
Fault Diagnosis: Built-in self-diagnosis function detects channel faults, overcurrent, short circuits, etc., with support for online fault reset.
Physical Characteristics
Dimensions: 166*42*118 mm
Mounting Method: Plug-in module compatible with T9300 I/O base unit, supporting DIN rail or panel mounting.
Protection Level: IP20 (protects against solid foreign objects; no water resistance).
Core Functions
Signal Output: Provides discrete output, supporting simplex, dual, or triple modular redundant (TMR) configurations to adapt to different reliability requirements.
Redundancy and Fault Tolerance: Supports dual-channel redundancy to ensure system operation remains unaffected by single-channel failures.
Safety Shutdown: Supports emergency shutdown (ESD) and fire & gas (F&G) protection systems, configurable in a "De-energize to Trip" mode.
Typical Applications
Industrial Automation: Control of production line equipment, motor start/stop, valve switching, etc.
Safety Systems: Safety instrumented systems (SIS) in chemical and oil & gas industries, meeting safety control requirements in high-risk scenarios.
Process Control: Integration with PLC or DCS systems to achieve precise control of field devices.
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