{"product_id":"honeywell-sdi-1624-safety-manager-safe-digital-input-module","title":"Honeywell SDI-1624 Safety Manager Safe Digital Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eIntegrating seamlessly into Safety Manager and Fail Safe Control (FSC) architectures, the \u003cstrong\u003eHoneywell SDI-1624\u003c\/strong\u003e serves as a high-integrity safe digital input interface designed for safety-critical industrial processes. This solid-state module processes up to \u003cstrong\u003e16 isolated safe input channels\u003c\/strong\u003e, converting field signals into dual-channel diagnostic data for the safety controller. Engineered with a robust 3U Eurocard form factor, the \u003cstrong\u003eSDI-1624\u003c\/strong\u003e provides continuous self-testing, short-circuit protection, and precise signal filtering to prevent spurious trips in demanding industrial settings.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16 Safe Input Channels:\u003c\/strong\u003e High-density, isolated digital inputs operating at nominal 24 Vdc.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComprehensive Self-Diagnostics:\u003c\/strong\u003e Integrated circuitry continuously monitors channel status, input delays, and internal rail voltages.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShort-Circuit Proof:\u003c\/strong\u003e Solid-state, current-limiting design protects internal logic from field wiring faults.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Signal Propagation Delay:\u003c\/strong\u003e Input transition delay is typically restricted to 10 ms for rapid emergency response.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Environmental Compliance:\u003c\/strong\u003e Certified for use in SIL-rated safety instrumented systems under CE, TUV, UL, CSA, and FM standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eEmergency Shutdown (ESD) Systems in petrochemical and refining facilities.\u003c\/li\u003e\n  \u003cli\u003eBurner Management Systems (BMS) for utility and industrial boilers.\u003c\/li\u003e\n  \u003cli\u003eFire and Gas (F\u0026amp;G) monitoring networks.\u003c\/li\u003e\n  \u003cli\u003eHigh-Integrity Pressure Protection Systems (HIPPS).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eHoneywell\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSDI-1624\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eModule Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSafe Digital Input Module (Solid State)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNumber of Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e16\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003ePhysical Dimensions\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e4 HP (TE) Width, 3U (HE) Height\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eLogic Power Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e5 Vdc, 8 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInternal 24 Vdc Power\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e24 Vdc, 110 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eExternal 24 Vdc Power\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e24 Vdc, 110 mA (input currents)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eMaximum Input Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e36 Vdc\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNominal Input Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e7 mA at 24 Vdc\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInput Threshold - HIGH\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e\u0026gt; 15 Vdc\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInput Threshold - LOW\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e\u0026lt; 9 Vdc (Current \u0026lt; 2 mA)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInput Signal Delay\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eTypically 10 ms\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eMaximum Loop Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e450 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eMax. Load Capacitance\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e32 uF\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eVoltage Drop\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e\u0026lt; 1.5 V at 450 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eRipple Limit (5 Vdc Rail)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e\u0026lt; 0.5 Vp-p (0 to 360 Hz)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCertifications \/ Approvals\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCE, TUV, UL, CSA, FM\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eShipping Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3.0 kg (6.6 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe SDI-1624 is a standardized safe input card for Honeywell FSC and Safety Manager backplanes. When migrating from older system revisions, confirm that the installed Field Termination Assembly (FTA) and cable routing are fully pin-compatible. This module directly replaces legacy safety digital inputs within the same system family, but safety parameter re-validation is recommended post-replacement.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eKeep the total field cabling capacitance below \u003cstrong\u003e32 uF\u003c\/strong\u003e. Exceeding this limit will distort the pulse-testing diagnostics generated by the safety processor, resulting in false channel faults or card mismatches. Ensure the 24 Vdc power supply feeding the field loops does not exhibit noise levels exceeding 0.5 Vp-p to prevent diagnostics from flagging signal instability.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eAlways route the 24 Vdc external supply and logic signals in separate shielded conduits to minimize electromagnetic interference (EMI). Ensure that the reference ground for the external 24 Vdc supply is bonded to the Safety Manager system common ground at a single, low-impedance point to prevent ground loops that could cause diagnostic errors.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 5px;\"\u003eCRITICAL WARNING:\u003c\/strong\u003e\n  \u003cspan style=\"color: #9b2c2c;\"\u003eDe-energize all field power loops and logic rack supplies before inserting or extracting the SDI-1624. Failure to fully discharge external loops can result in permanent diagnostic logic damage or unexpected safety system trips.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eInspect the backplane connector pins on the card rack to ensure they are clean, dry, and free of physical debris.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eAlign the module with the upper and lower card guide rails of the 3U subrack.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eSlide the module backward steadily until the DIN connector fully mates with the rack backplane. Avoid forcing the module if resistance is encountered.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eSecure both front panel retaining screws to guarantee mechanical stability and continuous chassis grounding.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52705558331755,"sku":"SDI-1624","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/sdi-1624-imgoqz1y35s_97f7cbd2-7a77-43da-b573-99c14a58b335.jpg?v=1766649718","url":"https:\/\/www.plcprotech.com\/ru\/products\/honeywell-sdi-1624-safety-manager-safe-digital-input-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}