{"product_id":"fta-t-18-honeywell-fail-safe-digital-input-module","title":"FTA-T-18 | Honeywell | Fail-Safe Digital Input Module","description":"\u003cp\u003eConfigured for high-integrity signal acquisition in safety-instrumented systems, the \u003cstrong\u003eHoneywell FTA-T-18\u003c\/strong\u003e (\u003cstrong\u003eFTA-T-18\u003c\/strong\u003e Fail-Safe Digital Input Module) provides direct physical execution of discrete input monitoring. This 16-channel hardware component processes 24 VDC input signals for integration into the FailSafe Controller platform, ensuring deterministic state transition reporting and process integrity.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eFTA-T-18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.87 kg (1.9 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 mm x 80 mm x 40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e20 mA per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e16 discrete inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFail-Safe State Execution and Galvanic Isolation\u003c\/h3\u003e\n\u003cp\u003eThe FTA-T-18 architecture incorporates comprehensive galvanic isolation between the field input loops and the internal controller backplane, preventing fault propagation from external circuits. Each channel supports fail-safe state execution, whereby any loss of input signal or internal diagnostic fault triggers a defined safe state. The module employs rigorous input filtering to ensure that signal transitions are validated against noise and chatter, maintaining a high degree of measurement accuracy (±0.1% of full scale) and repeatability (±0.05% of full scale). In high-risk process applications, the module's diagnostic coverage ensures that input states are verified for SIL-compliant operation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the FTA-T-18 support hot-swap insertion and extraction?\u003c\/p\u003e\n\u003cp\u003eA: No. The backplane design does not permit hot-swapping. System power must be isolated from the rack prior to module installation to prevent damage to the backplane communication pins.\u003c\/p\u003e\n\u003cp\u003eQ: How is input filtering managed to prevent false triggers?\u003c\/p\u003e\n\u003cp\u003eA: Input filtering is managed via onboard hardware logic that samples the input signal continuously. State changes must remain stable for the programmed debouncing period to be registered by the controller.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Secure the module into the designated rack slot, ensuring the physical keying prevents misalignment. Use the integrated fasteners to provide mechanical stability against vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding\u003c\/strong\u003e: Terminate the cable shields to the system-wide common ground bus at the cabinet entrance point. Do not ground the shields at the FTA-T-18 module itself to avoid ground loop current paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring\u003c\/strong\u003e: Route all 24 VDC input wiring through dedicated metallic conduits, maintaining separation from high-voltage AC lines to prevent capacitive noise coupling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminations\u003c\/strong\u003e: Verify that all field connections are tightly secured. Ensure that input current values do not exceed the 20 mA maximum, as excessive current will trigger thermal protection and potentially degrade module performance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52983553524021,"sku":"FTA-T-18","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/FTA-T-141_4770e2b1-f851-4529-8e33-59081bc58574.png?v=1781073754","url":"https:\/\/www.5gplc.com\/products\/fta-t-18-honeywell-fail-safe-digital-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}