{"product_id":"i-field-module-f-revision-j","title":"I-Field-Module-F Revision J","description":"\u003cp data-path-to-node=\"1\"\u003eThe \u003cb data-path-to-node=\"1\" data-index-in-node=\"4\"\u003eI-Field-Module (Revision J)\u003c\/b\u003e is a critical power-control component used in \u003cb data-path-to-node=\"1\" data-index-in-node=\"78\"\u003eMagnetek DSD 412\u003c\/b\u003e and \u003cb data-path-to-node=\"1\" data-index-in-node=\"99\"\u003eQuattro\u003c\/b\u003e DC elevator drives. In Canadian high-rise applications, this module acts as the \u003cb data-path-to-node=\"1\" data-index-in-node=\"187\"\u003eSCR-based Field Regulator\u003c\/b\u003e. It manages the excitation of the DC hoist motor’s field windings, ensuring the motor has the necessary torque at start-up and the ability to reach contract speed through field weakening.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003e\u003cb data-path-to-node=\"2\" data-index-in-node=\"0\"\u003eCore Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"3\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,0,0\"\u003e\u003cb data-path-to-node=\"3,0,0\" data-index-in-node=\"0\"\u003ePart Number:\u003c\/b\u003e I-Field-Module (Series F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,1,0\"\u003e\u003cb data-path-to-node=\"3,1,0\" data-index-in-node=\"0\"\u003eRevision:\u003c\/b\u003e \u003cb data-path-to-node=\"3,1,0\" data-index-in-node=\"10\"\u003eJ\u003c\/b\u003e (Latest hardware revision with improved noise immunity and thermal trace widths)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,2,0\"\u003e\u003cb data-path-to-node=\"3,2,0\" data-index-in-node=\"0\"\u003eFunction:\u003c\/b\u003e Solid-state DC Field Excitation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,3,0\"\u003e\u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"0\"\u003eInput:\u003c\/b\u003e Typically \u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"17\"\u003e230V AC\u003c\/b\u003e (Single Phase)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,4,0\"\u003e\u003cb data-path-to-node=\"3,4,0\" data-index-in-node=\"0\"\u003eOutput:\u003c\/b\u003e PWM-controlled DC (scaled to motor nameplate, often \u003cb data-path-to-node=\"3,4,0\" data-index-in-node=\"60\"\u003e40V to 150V DC\u003c\/b\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,5,0\"\u003e\u003cb data-path-to-node=\"3,5,0\" data-index-in-node=\"0\"\u003eCompatibility:\u003c\/b\u003e Magnetek DSD 412, DSD 415, and Quattro DC drives.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"4\"\u003e\n\u003ch3 data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eElevator Logic (Field Sequencing)\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"6\"\u003eThe Revision J module follows the drive's internal logic to transition the motor through three distinct states:\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eStanding Field:\u003c\/b\u003e When the elevator is idle, the module maintains a reduced voltage (e.g., 50%) to keep the motor windings dry and reduce the time required to \"build\" a field for the next run.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eFull Field (Forcing):\u003c\/b\u003e During acceleration, the module maximizes voltage to provide the high torque required to overcome static friction and move the counterweight.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eField Weakening:\u003c\/b\u003e Once the car nears contract speed, the module reduces current to the field, allowing the armature to spin faster than its base rated speed (RPM).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"8\"\u003e\n\u003ch3 data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eAccessories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"10\"\u003eTo function safely in a Canadian machine room, the I-Field module requires specific peripheral components:\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eProtection \u0026amp; Monitoring\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003eF1\/F2 Field Fuses:\u003c\/b\u003e Typically \u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"29\"\u003eFNA\u003c\/b\u003e or \u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"36\"\u003eKLM\u003c\/b\u003e high-speed branch circuit fuses. If these blow, the module cannot excite the motor, leading to a \"Drive Fault.\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003eInductors \/ Line Reactors:\u003c\/b\u003e Used on the AC input side to filter out \"notching\" and electrical noise that can interfere with the drive’s microprocessor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"13\"\u003e\u003cb data-path-to-node=\"13\" data-index-in-node=\"0\"\u003eThermal Management\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"14\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,0,0\"\u003e\u003cb data-path-to-node=\"14,0,0\" data-index-in-node=\"0\"\u003eThermal Interface Pad:\u003c\/b\u003e The Revision J must be mounted to the drive’s heat sink using a fresh thermal pad or non-conductive paste to prevent SCR thermal runaway.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"15\"\u003e\n\u003ch3 data-path-to-node=\"16\"\u003e\u003cb data-path-to-node=\"16\" data-index-in-node=\"0\"\u003eField Maintenance \u0026amp; Canadian Code Notes\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"17\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"17,0,0\"\u003e\u003cb data-path-to-node=\"17,0,0\" data-index-in-node=\"0\"\u003eB44 Field Loss Protection:\u003c\/b\u003e Under \u003cb data-path-to-node=\"17,0,0\" data-index-in-node=\"33\"\u003eCSA B44\u003c\/b\u003e, the drive must detect a loss of field current immediately to prevent a \"motor runaway\" condition. The Revision J module includes a feedback circuit that notifies the drive if the field circuit opens.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"17,1,0\"\u003e\u003cb data-path-to-node=\"17,1,0\" data-index-in-node=\"0\"\u003eRevision J Advantage:\u003c\/b\u003e Revision J was specifically released to address \"nuisance trips\" found in earlier revisions (G and H). It features a more robust firing circuit for the SCRs, which is more resilient to the voltage fluctuations seen in some Canadian utility grids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"17,2,0\"\u003e\u003cb data-path-to-node=\"17,2,0\" data-index-in-node=\"0\"\u003eField Resistance Tuning:\u003c\/b\u003e When replacing a module, you must verify the field resistance (Ohms) when the motor is cold. A mismatch between the module’s settings and the motor’s actual resistance can cause the drive to trip on \"Field Overcurrent\" as the motor warms up during peak traffic hours.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"17,3,0\"\u003e\u003cb data-path-to-node=\"17,3,0\" data-index-in-node=\"0\"\u003eSafety Tip:\u003c\/b\u003e DC fields are highly inductive. Never disconnect the field wires while the drive is powered, as the resulting \"inductive kick\" will likely destroy the Revision J module's output stage instantly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"R.A.M. Parts","offers":[{"title":"Default Title","offer_id":48180265549976,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/4369\/5000\/files\/rn-image_picker_lib_temp_9e58aeb4-e9e6-4288-b801-cba62a132eb8.jpg?v=1772232490","url":"https:\/\/parts4rem.ca\/products\/i-field-module-f-revision-j","provider":"Parts4REM","version":"1.0","type":"link"}