{"product_id":"aam21-yokogawa-tc-input-module-datasheet-technical-manual","title":"AAM21 Yokogawa TC Input Module Datasheet \u0026 Technical Manual","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa AAM21\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAAM21\u003c\/strong\u003e TC Input Module, operates as a dedicated hardware component for thermoelement signal acquisition within CENTUM CS and CENTUM VP control platforms.\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\u003eAAM21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e7.6 cm x 0.0 cm x 17.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e200 mA at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003eMulti-channel thermocouple support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Input\u003c\/td\u003e\n\u003ctd\u003emV \/ TC (Type K, T, J, E, R, S, B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and Signal Conditioning\u003c\/h3\u003e\n\u003cp\u003eThe AAM21 module utilizes integrated cold junction compensation (CJC) to maintain precise temperature measurement accuracy across all channels. By employing active filtering and channel-to-channel isolation, the module eliminates measurement errors resulting from common-mode noise inherent in distributed control systems. The signal processing architecture is optimized for 4-20 mA HART loop protocol compatibility when converted, ensuring seamless integration with existing process instrumentation and DCS databases.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the AAM21 support wire break detection for connected thermocouples?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module performs diagnostic checks for open-circuit conditions, reporting a fault state through the field control station diagnostic bits.\u003c\/p\u003e\n\u003cp\u003eQ: Is field-side power required for the AAM21 module operation?\u003c\/p\u003e\n\u003cp\u003eA: No, the module draws operating power directly from the internal backplane bus; field instruments connected to the inputs must be passive or self-powered depending on loop configuration requirements.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eVerify that the module is installed in the designated I\/O rack slot and that the backplane connector is free of debris.\u003c\/li\u003e\n\u003cli\u003eTerminate thermocouple leads using matched compensation wire to minimize thermal EMF errors at the terminal junction.\u003c\/li\u003e\n\u003cli\u003eEnsure that the shield for each thermocouple cable is properly grounded at the barrier or terminal rail to suppress EMI and RFI ingress.\u003c\/li\u003e\n\u003cli\u003eSecure the module using the integrated front-panel locking mechanisms to ensure a reliable connection with the backplane bus.\u003c\/li\u003e\n\u003cli\u003eConfigure the channel input type and burnout direction (upscale\/downscale) within the control system software to ensure expected behavior during a sensor failure.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49151689425148,"sku":"AAM21","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/AAM21-S2.jpg?v=1780277240","url":"https:\/\/www.electronicplc.com\/products\/aam21-yokogawa-tc-input-module-datasheet-technical-manual","provider":"Electronic PLC","version":"1.0","type":"link"}