{"product_id":"honeywell-fs-tsai-1620m-safe-analog-input-field-termination-assembly","title":"Honeywell FS-TSAI-1620M Safe Analog Input Field Termination Assembly","description":"\u003cp\u003eThe Honeywell FS-TSAI-1620M is a 16-channel safe analog input Field Termination Assembly (FTA) for the Honeywell FSC (Fail Safe Controller) system. It interfaces field-mounted transmitters with the SAI-1620m Safe High-Density Analog Input Module, accepting 0-20 mA and 4-20 mA current-loop signals and conditioning them for analog input processing. The assembly supports safety-related and non-safety-related signal applications.\u003c\/p\u003e\n\u003ch3\u003eFunctional Description\u003c\/h3\u003e\n\u003cp\u003eThe FS-TSAI-1620M provides the field wiring and signal-conditioning interface between analog transmitters and the controller's analog input hardware. Its input circuitry converts field current signals into proportional voltage signals for processing by the SAI-1620m.\u003c\/p\u003e\n\u003cp\u003eThe assembly provides 16 analog input channels, arranged in two groups of eight with a common 0 V reference within each group. This arrangement should be considered when checking field wiring, transmitter power distribution and grounding requirements.\u003c\/p\u003e\n\u003ch3\u003eSignal Interface and Configuration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAccepts 0-20 mA and 4-20 mA analog current signals.\u003c\/li\u003e\n\u003cli\u003eProvides 16 field input channels.\u003c\/li\u003e\n\u003cli\u003eInterfaces with the Honeywell SAI-1620m safe analog input module.\u003c\/li\u003e\n\u003cli\u003eSupports external power monitoring.\u003c\/li\u003e\n\u003cli\u003eProvides field connections for analog signals, power and cable shields.\u003c\/li\u003e\n\u003cli\u003eSupports field circuits from Class I, Division 2 hazardous locations, subject to the applicable installation limits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSignal Conversion and Transmitter Supply\u003c\/h3\u003e\n\u003cp\u003eThe FTA converts the incoming current signal into a 0-4 V DC output for the SAI-1620m module, with a specified conversion accuracy of 0.10%. This allows the field termination assembly to handle current-loop interfacing while the associated input module performs the safety input processing.\u003c\/p\u003e\n\u003cp\u003eFor passive transmitters, the FTA provides an external supply path with a 270 ohm output resistance (±5%). The external supply requirement is 30 V DC, with a nominal FTA current requirement of 3 mA excluding input loop loads.\u003c\/p\u003e\n\u003ch3\u003eProtection and Field Wiring\u003c\/h3\u003e\n\u003cp\u003eEach channel has dedicated screw-terminal connections and a grounding terminal for analog cable shielding. The assembly uses 315 mA slow-acting fuses to protect the field circuits. Its terminal arrangement supports wiring up to 2.5 mm2 (AWG 14), with a specified 7 mm stripping length and 0.5 Nm tightening torque.\u003c\/p\u003e\n\u003cp\u003eThe FS construction is non-conformal-coated. It should not be confused with the FC construction, which uses conformal coating. This distinction is relevant when identifying replacement hardware for an existing cabinet.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003eFS-TSAI-1620M\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSafe Analog Input Field Termination Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eHoneywell FSC \/ Safety Manager\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Input Channels\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Arrangement\u003c\/td\u003e\n\u003ctd\u003e2 groups of 8, with common 0 V per group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e0-20 mA, 4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current Range\u003c\/td\u003e\n\u003ctd\u003e0-25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003e250 ohm (±1%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Supply\u003c\/td\u003e\n\u003ctd\u003e30 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFTA Power Requirement\u003c\/td\u003e\n\u003ctd\u003e3 mA, excluding input loop loads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePassive Transmitter Output Resistance\u003c\/td\u003e\n\u003ctd\u003e270 ohm (±5%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIgniting Current per Channel\u003c\/td\u003e\n\u003ctd\u003eLess than 120 mA at 30 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput to SAI-1620m\u003c\/td\u003e\n\u003ctd\u003e0-4 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Accuracy\u003c\/td\u003e\n\u003ctd\u003e0.10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Rating\u003c\/td\u003e\n\u003ctd\u003e315 mA, slow-acting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Dimensions\u003c\/td\u003e\n\u003ctd\u003e5 x 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse AC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e125 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Current per Fuse\u003c\/td\u003e\n\u003ctd\u003e220 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Rail\u003c\/td\u003e\n\u003ctd\u003eTS32 \/ TS35 x 7.5 DIN EN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsed Rail Length\u003c\/td\u003e\n\u003ctd\u003e211 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eScrew terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Wire Diameter\u003c\/td\u003e\n\u003ctd\u003e2.5 mm2 (AWG 14)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Strip Length\u003c\/td\u003e\n\u003ctd\u003e7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Tightening Torque\u003c\/td\u003e\n\u003ctd\u003e0.5 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprovals\u003c\/td\u003e\n\u003ctd\u003eCE, TUV, UL, CSA, FM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eFS type, non-conformal coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e210 x 70 x 60 mm (L x W x H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the assembly on a compatible TS32 or TS35 x 7.5 DIN EN rail.\u003c\/li\u003e\n\u003cli\u003eConnect the external 30 V DC supply and 0 V reference according to the designated terminal connections.\u003c\/li\u003e\n\u003cli\u003eCheck the two groups of eight channels when allocating field signals and common references.\u003c\/li\u003e\n\u003cli\u003eUse the specified wire diameter, stripping length and terminal tightening torque.\u003c\/li\u003e\n\u003cli\u003eVerify fuse ratings and field-circuit electrical limits before connecting transmitters.\u003c\/li\u003e\n\u003cli\u003eConfirm the system interconnection cable and SAI-1620m interface before commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Which input module is compatible with the FS-TSAI-1620M?\u003c\/p\u003e\n\u003cp\u003eA: The designated input module is the Honeywell SAI-1620m Safe High-Density Analog Input Module. The FTA converts field current signals into 0-4 V DC signals for this module.\u003c\/p\u003e\n\u003cp\u003eQ: Can the FS-TSAI-1620M accept both 0-20 mA and 4-20 mA signals?\u003c\/p\u003e\n\u003cp\u003eA: Yes. It supports both current-loop ranges, with a specified input current range of 0-25 mA. The field signal configuration must match the transmitter and Safety Manager application settings.\u003c\/p\u003e\n\u003cp\u003eQ: Is FS-TSAI-1620M interchangeable with FC-TSAI-1620M?\u003c\/p\u003e\n\u003cp\u003eA: Both belong to the TSAI-1620m FTA family and share the documented basic electrical specifications. However, FS-type modules are non-conformal-coated, whereas FC-type modules are conformal-coated. Confirm the required construction and installed hardware revision before replacement.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52755039322397,"sku":"FS-TSAI-1620M","price":9.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/5387\/3181\/files\/Honeywell-FS-TSAI-1620M_1000.jpg?v=1787186871","url":"https:\/\/www.6gcontrols.com\/products\/honeywell-fs-tsai-1620m-safe-analog-input-field-termination-assembly","provider":"6G Controls","version":"1.0","type":"link"}