{"product_id":"sc-base-d","title":"MCE SC-BASE-D (Circuit Board)","description":"\u003cp data-path-to-node=\"1\"\u003eThe \u003cb data-path-to-node=\"1\" data-index-in-node=\"4\"\u003eSC-BASE-D\u003c\/b\u003e is a main logic motherboard used in \u003cb data-path-to-node=\"1\" data-index-in-node=\"50\"\u003eMotion Control Engineering (MCE)\u003c\/b\u003e legacy controllers (specifically the \u003cb data-path-to-node=\"1\" data-index-in-node=\"120\"\u003eVVMC\u003c\/b\u003e and \u003cb data-path-to-node=\"1\" data-index-in-node=\"129\"\u003eVFMC\u003c\/b\u003e series). It is the \"Dual\" or \"Drive\" variant of the SC-BASE backplane, often used in configurations involving two-car groups or specific drive interface requirements. It serves as the primary mounting surface for daughterboards and the landing area for safety and high-voltage logic.\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\"\u003eManufacturer:\u003c\/b\u003e Motion Control Engineering (MCE)\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\"\u003eModel:\u003c\/b\u003e SC-BASE-D\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\"\u003eType:\u003c\/b\u003e Large-format Printed Circuit Board (PCB)\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\"\u003eSupply Voltage:\u003c\/b\u003e 120V AC (Logic) \/ +\/- 15V DC \u0026amp; +5V DC (Bus Power)\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\"\u003eHardware:\u003c\/b\u003e Integrated terminal strips, ribbon headers, and manual toggle switches.\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\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cb data-path-to-node=\"6,0,0\" data-index-in-node=\"0\"\u003eSafety Circuit Consolidation:\u003c\/b\u003e Houses the terminal landings for the main safety string. It monitors the state of the governor, final limits, and emergency stop switches.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003eRedundant Logic Paths:\u003c\/b\u003e The \"D\" (Dual) designation refers to its ability to handle cross-signals between two controllers or redundant safety monitoring paths required by specific drive profiles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-path-to-node=\"6,2,0\" data-index-in-node=\"0\"\u003ePFLT (Phase Fault) Bypass:\u003c\/b\u003e Includes a physical toggle switch to bypass phase-fault sensing logic during hoistway setup or motor phasing tests.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,3,0\"\u003e\u003cb data-path-to-node=\"6,3,0\" data-index-in-node=\"0\"\u003eSignal Backplane:\u003c\/b\u003e Distributes logic signals to and from the \u003cb data-path-to-node=\"6,3,0\" data-index-in-node=\"60\"\u003eSC-SB\u003c\/b\u003e (Signal Board) daughterboards via fixed pin headers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"7\"\u003e\n\u003ch3 data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eAccessories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eSC-SB2K \/ SC-SB3K Boards:\u003c\/b\u003e Signal daughterboards that plug directly into the headers on the SC-BASE-D.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003ePilot Relays:\u003c\/b\u003e Typically clear-case, force-guided relays (like the MP or UP\/DN relays) soldered or clipped directly to the board.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eRibbon Cables:\u003c\/b\u003e Connects the base board to the \u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"46\"\u003eHC-MAIN\u003c\/b\u003e or \u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"57\"\u003eCPU\u003c\/b\u003e board for higher-level dispatching logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"10\"\u003e\n\u003ch3 data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eMaintenance \u0026amp; Code\u003c\/b\u003e\u003c\/h3\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\"\u003eB44 Safety String Integrity:\u003c\/b\u003e This board handles the high-voltage safety loop. Because the terminal blocks are soldered to the PCB, vibration can lead to \"cold\" solder joints. If the safety string shows \"Open\" despite switches being closed, check the solder points on the back of the SC-BASE-D.\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\"\u003eRelay Lifecycle:\u003c\/b\u003e The pilot relays on this board are safety-critical (force-guided). If a relay contact pits or sticks, the entire board is usually replaced to maintain code compliance, as field-repairing safety-grade PCBs is restricted.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003eSwitch Position:\u003c\/b\u003e Per code, the \u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"31\"\u003ePFLT Bypass\u003c\/b\u003e and any other logic bypass switches on this board must be in the \u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"108\"\u003eOFF\/NORMAL\u003c\/b\u003e position for the car to be in public service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e\u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"0\"\u003eVoltage Spikes:\u003c\/b\u003e Ensure the MOV (Metal Oxide Varistors) on the board are not scorched. These protect the logic from the inductive \"kick\" of the main contactors; if they fail, the logic chips on the daughterboards are often destroyed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"R.A.M. Parts","offers":[{"title":"Default Title","offer_id":48199985266840,"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_ab2e3859-a683-424e-9065-ec710c9c55d6.jpg?v=1772725908","url":"https:\/\/parts4rem.ca\/products\/sc-base-d","provider":"Parts4REM","version":"1.0","type":"link"}