{"product_id":"5501-376-analog-i-o-module-woodward","title":"5501-376 Analog I\/O Module Woodward","description":"\u003cp\u003eConfigured for high-speed signal processing and control loop interfacing in industrial automation platforms, the \u003cstrong\u003eWoodward 5501-376\u003c\/strong\u003e (\u003cstrong\u003e5501-376\u003c\/strong\u003e Analog I\/O Module) provides direct physical\/electrical execution. The module processes 8 channels of 4-20 mA inputs and converts frequency inputs spanning 100 - 25,000 Hz into discrete 0-10 V voltage outputs across an RS-485 serial communication bus, maintaining an update cycle of 5 ms and galavanic isolation up to 500 Vrms.\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\u003e5501-376\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.85kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Woodward Rack \/ Din-Rail Layout\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\u003e\u0026lt;= 15 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Range\u003c\/td\u003e\n\u003ctd\u003e4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e100 - 25,000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Amplitude\u003c\/td\u003e\n\u003ctd\u003e1-25 Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e2000 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eVoltage (0-10 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eRS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e12 bits minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e0.03% full scale (software calibrated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e500 Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Time\u003c\/td\u003e\n\u003ctd\u003e5 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eActuator Loop Feedback Response Dynamics\u003c\/h3\u003e\n\u003cp\u003eThe module integrates specialized signal processing routines designed to maintain rapid actuator loop feedback response within governor and drive control architectures. By executing high-speed analog acquisition alongside frequency input decoding (100 - 25,000 Hz) at a 5 ms update rate, the module minimizes phase lag during transient load changes. Digital filtering algorithms process raw sensor waveforms (1-25 Vrms amplitude) into 12-bit resolved numerical data, preventing actuator hunting and maintaining loop stability across fluctuating operating conditions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the module handle ground loops and electrical interference across analog channels?\u003c\/p\u003e\n\u003cp\u003eA: The board features 500 Vrms galvanic isolation between the internal processing logic and field side terminals, preventing common-mode noise and ground potential differences from corrupting input signal accuracy.\u003c\/p\u003e\n\u003cp\u003eQ: What is the required bus termination standard for the onboard RS-485 interface?\u003c\/p\u003e\n\u003cp\u003eA: The RS-485 differential line requires a 120 Ohm termination resistor placed across the physical signal pair at both extreme ends of the network trunk to eliminate line reflections during high-baud data transmission.\u003c\/p\u003e\n\u003cp\u003eQ: Can the input channels accept high-frequency speed sensor signals directly?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module accepts frequency inputs ranging from 100 to 25,000 Hz with amplitudes between 1 and 25 Vrms, processing these waveforms directly without external signal conditioning circuitry.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the module chassis securely onto the designated DIN-rail or rack frame inside a sealed industrial enclosure rated IP54 or higher.\u003c\/li\u003e\n\u003cli\u003eRoute 24 VDC primary power wiring using twisted, shielded 18 AWG copper conductors to minimize voltage drop across the supply terminals.\u003c\/li\u003e\n\u003cli\u003eEnsure all 4-20 mA and 0-10 V analog signal cables use individually shielded twisted pairs. Connect the cable drain wires to the main system earth ground terminal at one end only.\u003c\/li\u003e\n\u003cli\u003eMaintain a physical separation distance of at least 200 mm between low-voltage signal cables and high-voltage power lines inside cable trunks.\u003c\/li\u003e\n\u003cli\u003eVerify that RS-485 signal wires are wired in a daisy-chain topology with appropriate end-of-line termination before applying 24 VDC power.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":50734075838716,"sku":"5501-376","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/5501-376.jpg?v=1785289631","url":"https:\/\/www.electronicplc.com\/products\/5501-376-analog-i-o-module-woodward","provider":"Electronic PLC","version":"1.0","type":"link"}