{"product_id":"m-brake-module-revision-0-4","title":"M-Brake-Module Revision 0-4","description":"\u003cp data-path-to-node=\"1\"\u003eThe \u003cb data-path-to-node=\"1\" data-index-in-node=\"4\"\u003eM-Brake-Module Revision 0-4\u003c\/b\u003e is a high-capacity power interface utilized in \u003cb data-path-to-node=\"1\" data-index-in-node=\"79\"\u003eMagnetek DSD 412\u003c\/b\u003e and \u003cb data-path-to-node=\"1\" data-index-in-node=\"100\"\u003eQuattro\u003c\/b\u003e DC elevator drives. In the Canadian market, this \"Revision 4\" iteration represents a more robust version of the original brake driver, featuring improved gate-drive circuitry and transient protection compared to earlier Revision 0 units. It is the primary controller for the hoist machine's mechanical brake, providing the DC \"Pick and Hold\" voltages required for safe operation.\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\"\u003eModel:\u003c\/b\u003e M-Brake-Module\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\"\u003e0-4\u003c\/b\u003e (Enhanced transient protection version)\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 Programmable DC Brake Power Supply \/ Regulator\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 Voltage:\u003c\/b\u003e \u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"15\"\u003e230V AC\u003c\/b\u003e (Single Phase) or derived from the DC Bus.\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 Voltage:\u003c\/b\u003e PWM-regulated DC (Typically \u003cb data-path-to-node=\"3,4,0\" data-index-in-node=\"44\"\u003e90V to 250V 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\"\u003eCurrent Rating:\u003c\/b\u003e High-current capable for heavy-duty freight and high-rise traction brakes.\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 (Brake Profile Management)\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"6\"\u003eThe Revision 0-4 module executes the drive’s software-defined timing to manage the mechanical brake life cycle:\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\"\u003ePick Voltage (Over-excitation):\u003c\/b\u003e The module provides a high-voltage burst to overcome spring tension and quickly pull the brake shoes. This ensures the motor isn't \"running through the brake\" at the start of a trip.\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\"\u003eHold Voltage:\u003c\/b\u003e Once the car is in motion, the module reduces the voltage to a \"Holding\" level. This keeps the brake open while significantly reducing heat in the coil and the module's power transistors.\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\"\u003eRe-Leveling Logic:\u003c\/b\u003e The module manages the short-cycling of the brake during floor-leveling adjustments, ensuring the brake doesn't \"slam\" or create excessive noise for passengers.\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\"\u003eThe module requires specific external components to handle the inductive energy of the brake coil:\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003ePower Protection\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\"\u003eDischarge Resistor:\u003c\/b\u003e A large external resistor (often 50W–100W). This is \u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"72\"\u003emandatory\u003c\/b\u003e; it absorbs the inductive \"kick\" when the brake is dropped. If this resistor is open, the Revision 0-4 module will likely fail during the first few stops.\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\"\u003eF3\/F4 Fuses:\u003c\/b\u003e High-speed semiconductor fuses (e.g., \u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"51\"\u003eFNA\u003c\/b\u003e or \u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"58\"\u003eKLM\u003c\/b\u003e) located on the drive’s power plate to protect the module from internal shorts.\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\/Grease:\u003c\/b\u003e The module must be mounted to the drive’s aluminum heat sink with a fresh thermal conductor. Revision 0-4 generates significant heat during high-traffic \"rush hour\" periods in Canadian office towers.\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 Brake Monitoring:\u003c\/b\u003e Per \u003cb data-path-to-node=\"17,0,0\" data-index-in-node=\"26\"\u003eCSA B44\u003c\/b\u003e, the drive must monitor the electrical state of the brake. The Revision 0-4 module sends current-sensing data back to the drive. If the module detects current when the brake should be \"dropped\" (indicating a stuck transistor), the drive will trigger a safety lockout to prevent the car from running with an energized brake.\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 0-4 Upgrades:\u003c\/b\u003e Revision 0-4 was engineered to be more resilient to the \"back-EMF\" spikes that frequently destroyed earlier Revision 0 units. However, it still requires a solid ground and a functional discharge resistor to survive long-term.\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\"\u003eVoltage Calibration:\u003c\/b\u003e After replacement, technicians must verify the \u003cb data-path-to-node=\"17,2,0\" data-index-in-node=\"68\"\u003ePick\u003c\/b\u003e and \u003cb data-path-to-node=\"17,2,0\" data-index-in-node=\"77\"\u003eHold\u003c\/b\u003e voltages at the \u003cspan class=\"math-inline\" data-math=\"B1\/B2\" data-index-in-node=\"98\"\u003e$B1\/B2$\u003c\/span\u003e terminals. Because the output is PWM (Pulse Width Modulation), a \u003cb data-path-to-node=\"17,2,0\" data-index-in-node=\"169\"\u003eTrue RMS\u003c\/b\u003e multimeter is required for an accurate reading.\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\"\u003eCoil Integrity:\u003c\/b\u003e Before installing a new module, always \"Megger\" the brake coil and check its resistance. A partially shorted coil or a \"grounded\" winding is the most common cause of premature M-Brake-Module failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"R.A.M. Parts","offers":[{"title":"Default Title","offer_id":48180230619288,"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_d8e54c45-0aa2-46a3-834f-6fac18327fdd.jpg?v=1772232880","url":"https:\/\/parts4rem.ca\/products\/m-brake-module-revision-0-4","provider":"Parts4REM","version":"1.0","type":"link"}