{"product_id":"fanuc-ai-servo-amplifier-control-card-200vac-input-a20b-2003-0420-copy-1","title":"Fanuc ai Servo Amplifier Control Card 200VAC-input A20B-2101-0354","description":"\u003ch3 data-section-id=\"6hx8bz\" data-start=\"0\" data-end=\"35\"\u003e🔧 A20B-2101-0354 — Description\u003c\/h3\u003e\n\u003cp data-start=\"37\" data-end=\"233\"\u003e\u003cstrong data-start=\"37\" data-end=\"55\"\u003eA20B-2101-0354\u003c\/strong\u003e is a \u003cstrong data-start=\"61\" data-end=\"118\"\u003eFANUC spindle\/servo drive PCB (printed circuit board)\u003c\/strong\u003e used in \u003cstrong data-start=\"127\" data-end=\"156\"\u003eCNC spindle drive systems\u003c\/strong\u003e, particularly within \u003cstrong data-start=\"178\" data-end=\"232\"\u003eAlpha i spindle drive (6111 series) configurations\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-start=\"235\" data-end=\"238\"\u003e\n\u003ch2 data-section-id=\"1l6ipoy\" data-start=\"240\" data-end=\"272\"\u003e📌 Full Technical Description\u003c\/h2\u003e\n\u003cul data-start=\"273\" data-end=\"483\"\u003e\n\u003cli data-section-id=\"1ls4bne\" data-start=\"273\" data-end=\"300\"\u003e\n\u003cstrong data-start=\"275\" data-end=\"292\"\u003eManufacturer:\u003c\/strong\u003e FANUC\u003c\/li\u003e\n\u003cli data-section-id=\"yfoi2v\" data-start=\"301\" data-end=\"336\"\u003e\n\u003cstrong data-start=\"303\" data-end=\"319\"\u003ePart Number:\u003c\/strong\u003e A20B-2101-0354\u003c\/li\u003e\n\u003cli data-section-id=\"48vz8b\" data-start=\"337\" data-end=\"389\"\u003e\n\u003cstrong data-start=\"339\" data-end=\"348\"\u003eType:\u003c\/strong\u003e Spindle drive board \/ servo add-on PCB\u003c\/li\u003e\n\u003cli data-section-id=\"1gfvfd3\" data-start=\"390\" data-end=\"415\"\u003e\n\u003cstrong data-start=\"392\" data-end=\"403\"\u003eSeries:\u003c\/strong\u003e A20B-2101\u003c\/li\u003e\n\u003cli data-section-id=\"1ewzm5l\" data-start=\"416\" data-end=\"483\"\u003e\n\u003cstrong data-start=\"418\" data-end=\"434\"\u003eApplication:\u003c\/strong\u003e CNC spindle drive system (Alpha i \/ 6111 series)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"485\" data-end=\"488\"\u003e\n\u003ch2 data-section-id=\"15abxqy\" data-start=\"490\" data-end=\"519\"\u003e⚙️ Function (What it does)\u003c\/h2\u003e\n\u003cul data-start=\"520\" data-end=\"787\"\u003e\n\u003cli data-section-id=\"tr4mfb\" data-start=\"520\" data-end=\"591\"\u003eActs as a \u003cstrong data-start=\"532\" data-end=\"591\"\u003espindle drive control board inside the amplifier system\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1a5mt5w\" data-start=\"592\" data-end=\"787\"\u003eHandles:\n\u003cul data-start=\"605\" data-end=\"787\"\u003e\n\u003cli data-section-id=\"1k9qhur\" data-start=\"605\" data-end=\"636\"\u003eSpindle motor control logic\u003c\/li\u003e\n\u003cli data-section-id=\"1rcjswy\" data-start=\"639\" data-end=\"693\"\u003eSignal processing between CNC controller and drive\u003c\/li\u003e\n\u003cli data-section-id=\"t6922f\" data-start=\"696\" data-end=\"748\"\u003ePower\/control coordination for spindle operation\u003c\/li\u003e\n\u003cli data-section-id=\"1mx9mux\" data-start=\"751\" data-end=\"787\"\u003eFeedback processing from sensors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"789\" data-end=\"904\"\u003e👉 In simple terms:\u003cbr data-start=\"808\" data-end=\"811\"\u003eIt is the \u003cstrong data-start=\"821\" data-end=\"859\"\u003e“brain board” of the spindle drive\u003c\/strong\u003e, helping control how the spindle motor runs.\u003c\/p\u003e\n\u003chr data-start=\"906\" data-end=\"909\"\u003e\n\u003ch2 data-section-id=\"17ewnyt\" data-start=\"911\" data-end=\"943\"\u003e🔍 Technical Role (Important)\u003c\/h2\u003e\n\u003cul data-start=\"944\" data-end=\"1218\"\u003e\n\u003cli data-section-id=\"1odhbfn\" data-start=\"944\" data-end=\"1103\"\u003eIdentified as:\n\u003cul data-start=\"963\" data-end=\"1103\"\u003e\n\u003cli data-section-id=\"53c8ch\" data-start=\"963\" data-end=\"1030\"\u003e\n\u003cstrong data-start=\"965\" data-end=\"990\"\u003eSpindle control board\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"8ceoxj\" data-start=\"1033\" data-end=\"1103\"\u003e\n\u003cstrong data-start=\"1035\" data-end=\"1063\"\u003eServo add-on \/ drive PCB\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1bcn335\" data-start=\"1104\" data-end=\"1218\"\u003eSpecifically used in:\n\u003cul data-start=\"1130\" data-end=\"1218\"\u003e\n\u003cli data-section-id=\"1yj08dg\" data-start=\"1130\" data-end=\"1218\"\u003e\n\u003cstrong data-start=\"1132\" data-end=\"1178\"\u003eAlpha i spindle drive Type-A (6111 series)\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1220\" data-end=\"1330\"\u003e👉 This confirms:\u003cbr\u003e\u003cstrong data-start=\"1238\" data-end=\"1330\"\u003eIt directly belongs to the spindle drive system (not just general CNC I\/O or CPU board).\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"1332\" data-end=\"1335\"\u003e\n\u003ch2 data-section-id=\"1v4nue1\" data-start=\"1337\" data-end=\"1359\"\u003e🏭 Where it is used\u003c\/h2\u003e\n\u003cul data-start=\"1360\" data-end=\"1535\"\u003e\n\u003cli data-section-id=\"ss6aoo\" data-start=\"1360\" data-end=\"1445\"\u003eInstalled inside:\n\u003cul data-start=\"1382\" data-end=\"1445\"\u003e\n\u003cli data-section-id=\"1ydgunt\" data-start=\"1382\" data-end=\"1445\"\u003eFANUC \u003cstrong data-start=\"1390\" data-end=\"1443\"\u003espindle amplifier modules (Alpha i \/ 6111 series)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"pysj7j\" data-start=\"1446\" data-end=\"1535\"\u003eUsed in:\n\u003cul data-start=\"1459\" data-end=\"1535\"\u003e\n\u003cli data-section-id=\"9nr7ni\" data-start=\"1459\" data-end=\"1484\"\u003eCNC machining centers\u003c\/li\u003e\n\u003cli data-section-id=\"1uqvpnl\" data-start=\"1487\" data-end=\"1501\"\u003eCNC lathes\u003c\/li\u003e\n\u003cli data-section-id=\"nmrmxp\" data-start=\"1504\" data-end=\"1535\"\u003eIndustrial milling machines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1537\" data-end=\"1540\"\u003e\n\u003ch2 data-section-id=\"wc3ugg\" data-start=\"1542\" data-end=\"1576\"\u003e🧩 Key Specifications (typical)\u003c\/h2\u003e\n\u003cul data-start=\"1577\" data-end=\"1784\"\u003e\n\u003cli data-section-id=\"ehetfc\" data-start=\"1577\" data-end=\"1604\"\u003eDigital control signals\u003c\/li\u003e\n\u003cli data-section-id=\"wkm3fi\" data-start=\"1605\" data-end=\"1696\"\u003e~24V control output (typical board-level control) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"a7pmfj\" data-start=\"1697\" data-end=\"1784\"\u003eWorks with:\n\u003cul data-start=\"1713\" data-end=\"1784\"\u003e\n\u003cli data-section-id=\"q1kxco\" data-start=\"1713\" data-end=\"1750\"\u003eCNC controller (A20B\/A16B boards)\u003c\/li\u003e\n\u003cli data-section-id=\"raywwl\" data-start=\"1753\" data-end=\"1784\"\u003eSpindle motor via amplifier\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1786\" data-end=\"1789\"\u003e\n\u003ch2 data-section-id=\"c2zqdr\" data-start=\"1791\" data-end=\"1812\"\u003e⚠️ Important Notes\u003c\/h2\u003e\n\u003cul data-start=\"1813\" data-end=\"2065\"\u003e\n\u003cli data-section-id=\"9y9pkv\" data-start=\"1813\" data-end=\"1914\"\u003e❗ \u003cstrong data-start=\"1817\" data-end=\"1849\"\u003eDiscontinued by manufacturer\u003c\/strong\u003e (common for this series) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"4jnm3x\" data-start=\"1915\" data-end=\"1985\"\u003e❗ Usually available as:\n\u003cul data-start=\"1943\" data-end=\"1985\"\u003e\n\u003cli data-section-id=\"ewdjsf\" data-start=\"1943\" data-end=\"1958\"\u003eRefurbished\u003c\/li\u003e\n\u003cli data-section-id=\"il04yv\" data-start=\"1961\" data-end=\"1985\"\u003eRepair\/exchange unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cyomnk\" data-start=\"1986\" data-end=\"2065\"\u003e❗ Must match:\n\u003cul data-start=\"2004\" data-end=\"2065\"\u003e\n\u003cli data-section-id=\"pl6j2c\" data-start=\"2004\" data-end=\"2037\"\u003eExact spindle amplifier model\u003c\/li\u003e\n\u003cli data-section-id=\"1yl1uv1\" data-start=\"2040\" data-end=\"2065\"\u003eMachine configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1nccn2b\" data-start=\"2067\" data-end=\"2095\"\u003eCommon failure symptoms:\u003c\/h3\u003e\n\u003cul data-start=\"2096\" data-end=\"2178\"\u003e\n\u003cli data-section-id=\"m5yezs\" data-start=\"2096\" data-end=\"2120\"\u003eSpindle not rotating\u003c\/li\u003e\n\u003cli data-section-id=\"lyb2kt\" data-start=\"2121\" data-end=\"2145\"\u003eSpindle drive alarms\u003c\/li\u003e\n\u003cli data-section-id=\"1br0xf2\" data-start=\"2146\" data-end=\"2178\"\u003eCommunication fault with CNC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2180\" data-end=\"2183\"\u003e\n\u003ch2 data-section-id=\"4p4rx5\" data-start=\"2185\" data-end=\"2198\"\u003e👍 Summary\u003c\/h2\u003e\n\u003cp data-start=\"2199\" data-end=\"2413\"\u003e\u003cstrong data-start=\"2199\" data-end=\"2251\"\u003eA20B-2101-0354 = FANUC spindle drive control PCB\u003c\/strong\u003e\u003cbr data-start=\"2251\" data-end=\"2254\"\u003e➡️ Used in Alpha i (6111 series) spindle amplifiers\u003cbr data-start=\"2305\" data-end=\"2308\"\u003e➡️ Controls spindle motor operation and drive logic\u003cbr data-start=\"2359\" data-end=\"2362\"\u003e➡️ Critical internal board for CNC spindle system\u003c\/p\u003e","brand":"JJAutomation","offers":[{"title":"Default Title","offer_id":45035090935944,"sku":"A20B-2101-0354","price":0.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/1903\/3224\/files\/WhatsAppImage2025-10-18at1.47.49PM-2026-04-15T131846.377.jpg?v=1776239339","url":"https:\/\/jjautomation.in\/products\/fanuc-ai-servo-amplifier-control-card-200vac-input-a20b-2003-0420-copy-1","provider":"JJAutomation","version":"1.0","type":"link"}