{"product_id":"fanuc-a20b-2902-0390-alpha-power-driver-board","title":"FANUC A20B-2902-0390 Alpha Power Driver Board","description":"\u003cp style=\"margin: 0 0 14px;\"\u003e\u003cstrong\u003eFANUC A20B-2902-0390\u003c\/strong\u003e is an \u003cstrong\u003eAlpha power driver board \/ drive module\u003c\/strong\u003e used in FANUC power supply and spindle amplifier modules. It provides power-stage driving functions and is different from the main control PCB or base wiring board.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFANUC documentation lists this board in compatible \u003cstrong\u003eAlpha PSM and SPM modules\u003c\/strong\u003e. Because it appears across several sizes and interfaces, replacement must be based on the A20B label, revision and complete A06B host number.\u003c\/p\u003e\n\u003ch4 style=\"margin: 32px 0 14px;\"\u003eA20B-2902-0390 Product Information\u003c\/h4\u003e\n\u003ctable cellpadding=\"10\" style=\"width: 100%; border-collapse: collapse; margin: 0 0 18px;\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width: 34%;\"\u003e\n\u003ccol\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f7f7f7;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFANUC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA20B-2902-0390\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f7f7;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eBoard Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlpha power driver board \/ drive module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower-semiconductor gate driving and power-stage interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f7f7;\"\u003e\n\u003ctd\u003e\u003cstrong\u003ePSM Applications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelected PSM-5.5, PSM-11, PSM-15, PSM-26 and PSM-30 modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSPM Applications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelected SPM-11, SPM-15, SPM-22, SPM-26 and SPM-30 modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f7f7;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eDocumented Families\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA06B-6077, A06B-6087, A06B-6088 and A06B-6102\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNon-CE Alternative\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA20B-2902-0280 in certain configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f7f7;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Status\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLegacy \/ discontinued FANUC board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew, refurbished, or used 90% new; subject to stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f7f7;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eTesting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100% tested before shipping; test video available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHandling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNormally 1–2 business days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f7f7;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping \/ ETA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDHL, UPS, or FedEx worldwide; typically 3–7 business days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 year for new\/refurbished; 3 months for used 90% new\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f7f7;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eService \/ Packing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree technical support; anti-static reinforced packing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4 style=\"margin: 32px 0 14px;\"\u003ePower Driver Function\u003c\/h4\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe A20B-2902-0390 transfers drive commands to compatible power semiconductor modules. A damaged board can contribute to overcurrent alarms, missing drive output, uneven transistor switching or repeated power-module failure.\u003c\/p\u003e\n\u003ch4 style=\"margin: 32px 0 14px;\"\u003ePSM and SPM Applications\u003c\/h4\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eIn PSM assemblies, FANUC identifies A20B-2902-0390 as a driver board. In many CE-marked SPM configurations, it is installed with wiring boards such as A20B-1006-0486, A20B-1006-0487, A20B-1006-0488 or A20B-1006-0489. The complete modules remain model-specific.\u003c\/p\u003e\n\u003ch4 style=\"margin: 32px 0 14px;\"\u003eCompatibility and Revision Checks\u003c\/h4\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eConfirm \u003cstrong\u003eA20B-2902-0390\u003c\/strong\u003e, its printed revision, connector layout and full A06B host model. Also verify CE status and whether the documentation specifies A20B-2902-0390 or A20B-2902-0280. Similar appearance does not establish compatibility.\u003c\/p\u003e\n\u003ch4 style=\"margin: 32px 0 14px;\"\u003eTesting and Installation Notes\u003c\/h4\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eREACO CNC checks the label, revision, connectors, drive components, solder condition and compatible module operation where applicable. Power semiconductors and related resistors should also be checked before replacement. Qualified personnel must isolate power and discharge the DC bus fully.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eRelated resources: \u003ca href=\"\/it\/collections\/fanuc-pcbs\"\u003eFANUC circuit boards\u003c\/a\u003e, \u003ca href=\"\/it\/collections\/fanuc-drives\"\u003eFANUC drives\u003c\/a\u003e and \u003ca href=\"\/it\/products\/fanuc-mitsubishi-cnc-robot-parts-repair\"\u003eFANUC CNC repair services\u003c\/a\u003e.\u003c\/p\u003e","brand":"FANUC","offers":[{"title":"Used (90% New)","offer_id":67907205988567,"sku":"A20B-2902-0390-used","price":132.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/3784\/4183\/files\/fanuc-a20b-2902-0390-alpha-driver-board-main.webp?v=1793176390","url":"https:\/\/reacocnc.com\/it\/products\/fanuc-a20b-2902-0390-alpha-power-driver-board","provider":"REACO CNC","version":"1.0","type":"link"}