{"product_id":"triconex-7400221-100-pi2381-pulse-safety-input-module","title":"Triconex 7400221-100 PI2381 Pulse Safety Input Module","description":"\u003ch2\u003eTriconex 7400221-100 PI2381 Pulse Input Baseplate\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-reliability frequency acquisition in Safety Instrumented Systems (SIS), the \u003cstrong\u003eTriconex 7400221-100\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePI2381\u003c\/strong\u003e Pulse Input Baseplate, provides direct physical\/electrical execution. The hardware serves as the primary interface executing sensor pulse conversion into digital frequency and rotational speed data for downstream processing. It acts as an isolated signal conditioning plane operating under a Triple Modular Redundant (TMR) processing framework to manage high-velocity field telemetry.\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\u003e7400221-100 PI2381\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTriconex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e122 x 87 x 90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e6 isolated input channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Compatibility\u003c\/td\u003e\n\u003ctd\u003eMagnetic pickups, active sensors, open-collector outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003eUp to +\/-33 VDC maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Input Voltage\u003c\/td\u003e\n\u003ctd\u003e0.5 to 1 V P-P depending on frequency\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency Range\u003c\/td\u003e\n\u003ctd\u003e0.5 Hz to 32 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Range\u003c\/td\u003e\n\u003ctd\u003e0 to 32,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e24-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-0.01% (2,000 to 32,000 Hz), +\/-0.1% (0.5 to 2,000 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eGreater than or equal to 500 VDC channel-to-earth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Teeth Supported\u003c\/td\u003e\n\u003ctd\u003e1 to 255\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot-Swappable\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eIEC 61508 SIL 3, TUV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTriple Modular Redundant Safety Control\u003c\/h3\u003e\n\u003cp\u003eThe architecture utilizes a triple modular redundancy (TMR) 2oo3 architecture to eliminate single-point failures across critical execution loops. Three isolated hardware branches simultaneously execute continuous internal diagnostics and fault detection on incoming pulses. Hardware channels route through a dedicated mid-value selection algorithm to reconcile discrepancies across the independent processing paths. Galvanic isolation measures equal to or exceeding 500 VDC safeguard internal processing logic against external field transients, enforcing a predictive fail-safe state execution should input values degrade beyond operational setpoints.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the hot-swap functionality pose a threat of spurious trip execution to the active 2oo3 voting network?\u003c\/p\u003e\n\u003cp\u003eA: No. The hot-swappable architecture allows online module replacement without halting system operations. The internal mid-value selection logic isolates the slot under replacement, maintaining system integrity via the remaining redundant channels during the replacement window.\u003c\/p\u003e\n\u003cp\u003eQ: What are the input electrical limits required to maintain standard 24-bit resolution accuracy at lower frequency ranges?\u003c\/p\u003e\n\u003cp\u003eA: The minimum input amplitude ranges from 0.5 V to 1 V Peak-to-Peak (P-P). Frequencies below 2,000 Hz operate at an accuracy of +\/-0.1%, while high-frequency operations between 2,000 Hz and 32 kHz achieve +\/-0.01% accuracy.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Grounding and Isolation Compliance\u003c\/strong\u003e: Ensure the baseplate DIN-rail mounting or panel assembly connects directly to a low-impedance instrument ground plane. Channel-to-earth isolation boundaries must maintain a minimum threshold of 500 VDC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Interconnection Rules\u003c\/strong\u003e: Run field wiring for magnetic pickups or active pulse sensors via twisted, shielded pairs. Terminate the shields strictly at the designated baseplate ground terminals. Never loop ground shields back to the field sensor housing to prevent parasitic ground loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Wiring Mechanical Constraints\u003c\/strong\u003e: Secure field connections using standard commercial instrumentation practices. Ensure a minimum thread engagement for terminal screws to avoid vibration-induced signaling faults. Maintain physical separation between low-voltage pulse input cables and high-voltage AC distribution paths.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":43712316407898,"sku":"PI2381 7400221-100","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/148._99117984-59e8-4cee-af4d-671485994443.jpg?v=1784775397","url":"https:\/\/www.spareoil.com\/products\/triconex-7400221-100-pi2381-pulse-safety-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}