Introduction to HONEYWELL FTA-T-21
FTA-T-21 Product Introduction
The HONEYWELL FTA-T-21 is a high-reliability fail-safe digital input module under the Honeywell FTA-T series, specifically engineered for industrial automation and safety instrumented systems (SIS). As a crucial signal acquisition component, it is designed to collect discrete signals from field devices such as buttons, switches, and sensors, converting dry contact signals into digital signals that can be processed by Honeywell controllers. Featuring 21 dedicated input channels, this module enables simultaneous signal collection from multiple devices, enhancing operational efficiency in complex industrial scenarios. It adopts channel-to-channel and power isolation technology to effectively resist electrical noise interference, ensuring stable signal transmission in harsh industrial environments. Equipped with a built-in self-diagnostic function, it can promptly detect channel faults, facilitating quick maintenance and minimizing system downtime. With a compact structure and convenient M12 connector or screw terminal connections, it simplifies installation and seamless integration into existing control systems.
FTA-T-21 Technical Parameters
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Product Model: FTA-T-21
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Product Type: Fail-Safe Digital Input Module (Honeywell FTA-T Series)
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Core Functions: 21-channel discrete signal acquisition; Dry contact signal conversion; Channel-to-channel & power isolation; Real-time self-diagnosis; Fail-safe protection for SIS
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Connection Specifications: M12 connector / Screw terminal connections; Compatible with Honeywell SIS and PLC systems; Compliant with IEC 61131-2 standard
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Electrical Specifications: Input Type: Dry contact input; Input Voltage: 24V DC; Power Supply: 24V DC; Power Consumption: 5W; Certifications: CE, UL compliant
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Environmental Ratings: Operating Temperature: -25°C to 70°C; Storage Temperature: -40°C to 85°C; Relative Humidity: 5% – 95% (non-condensing); Protection Rating: IP65
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Mechanical Details: Housing Material: Industrial-grade high-strength plastic; Dimensions: 11.5 cm × 6.5 cm × 3.0 cm (4.5 inches × 2.6 inches × 1.2 inches); Weight: 0.5 kg (1.1 lbs); Installation: DIN rail mounting
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System Compatibility: Fully compatible with Honeywell safety instrumented systems (SIS) and industrial DCS/PLC; Suitable for manufacturing, energy, water treatment, and petrochemical industry setups
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