{"product_id":"fanuc-ai-servo-amplifier-control-card-200vac-input-a20b-2101-0041-copy","title":"Fanuc ai Servo Amplifier Control Card 200VAC-input A20B-2101-0042","description":"\u003ch2 data-section-id=\"99r10u\" data-start=\"0\" data-end=\"62\"\u003e\u003cspan role=\"text\"\u003e🔧 \u003cstrong data-start=\"6\" data-end=\"62\"\u003eFANUC A20B-2101-0042 – Servo Control PCB (Dual-Axis)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"64\" data-end=\"96\"\u003eFANUC A20B-2101-0042 PCB Board\u003c\/p\u003e\n\u003chr data-start=\"98\" data-end=\"101\"\u003e\n\u003ch2 data-section-id=\"1cdf7ci\" data-start=\"103\" data-end=\"128\"\u003e🧠 Model Description\u003c\/h2\u003e\n\u003cp data-start=\"129\" data-end=\"362\"\u003e\u003cstrong data-start=\"129\" data-end=\"147\"\u003eA20B-2101-0042\u003c\/strong\u003e is a \u003cstrong data-start=\"153\" data-end=\"199\"\u003eFANUC internal printed circuit board (PCB)\u003c\/strong\u003e used inside \u003cstrong data-start=\"212\" data-end=\"252\"\u003eAlpha i (αi) servo amplifier modules\u003c\/strong\u003e. It is a \u003cstrong data-start=\"262\" data-end=\"297\"\u003eservo control \/ interface board\u003c\/strong\u003e responsible for managing motion control for \u003cstrong data-start=\"342\" data-end=\"361\"\u003eone or two axes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-start=\"364\" data-end=\"367\"\u003e\n\u003ch2 data-section-id=\"6niyyd\" data-start=\"369\" data-end=\"398\"\u003e⚙️ Key Technical Details\u003c\/h2\u003e\n\u003cul data-start=\"400\" data-end=\"647\"\u003e\n\u003cli data-section-id=\"1en9np9\" data-start=\"400\" data-end=\"448\"\u003e\n\u003cstrong data-start=\"402\" data-end=\"411\"\u003eType:\u003c\/strong\u003e Servo control PCB (internal board)\u003c\/li\u003e\n\u003cli data-section-id=\"1gfvfd3\" data-start=\"449\" data-end=\"474\"\u003e\n\u003cstrong data-start=\"451\" data-end=\"462\"\u003eSeries:\u003c\/strong\u003e A20B-2101\u003c\/li\u003e\n\u003cli data-section-id=\"m7dj0p\" data-start=\"475\" data-end=\"524\"\u003e\n\u003cstrong data-start=\"477\" data-end=\"496\"\u003eFunction Class:\u003c\/strong\u003e Control \/ interface board\u003c\/li\u003e\n\u003cli data-section-id=\"8ifa2b\" data-start=\"525\" data-end=\"584\"\u003e\n\u003cstrong data-start=\"527\" data-end=\"546\"\u003eAxes Supported:\u003c\/strong\u003e \u003cstrong data-start=\"547\" data-end=\"582\"\u003e1-axis or 2-axis (dual channel)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"6tbayq\" data-start=\"585\" data-end=\"647\"\u003e\n\u003cstrong data-start=\"587\" data-end=\"599\"\u003eUsed In:\u003c\/strong\u003e Alpha i servo amplifiers (SVM \/ aiSV modules)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"649\" data-end=\"652\"\u003e\n\u003ch2 data-section-id=\"bga9cp\" data-start=\"654\" data-end=\"674\"\u003e⚙️ What It Does\u003c\/h2\u003e\n\u003cp data-start=\"676\" data-end=\"763\"\u003eThis board acts as the \u003cstrong data-start=\"699\" data-end=\"752\"\u003emain control interface inside the servo amplifier\u003c\/strong\u003e, handling:\u003c\/p\u003e\n\u003cul data-start=\"765\" data-end=\"1189\"\u003e\n\u003cli data-section-id=\"rfrm3l\" data-start=\"765\" data-end=\"850\"\u003e🧠 \u003cstrong data-start=\"770\" data-end=\"799\"\u003eMotion control processing\u003c\/strong\u003e\n\u003cul data-start=\"804\" data-end=\"850\"\u003e\n\u003cli data-section-id=\"39iob5\" data-start=\"804\" data-end=\"816\"\u003ePosition\u003c\/li\u003e\n\u003cli data-section-id=\"1myb0zz\" data-start=\"819\" data-end=\"828\"\u003eSpeed\u003c\/li\u003e\n\u003cli data-section-id=\"1oj9pw\" data-start=\"831\" data-end=\"850\"\u003eTorque commands\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15ebv2j\" data-start=\"852\" data-end=\"947\"\u003e📡 \u003cstrong data-start=\"857\" data-end=\"894\"\u003eCommunication with CNC controller\u003c\/strong\u003e\n\u003cul data-start=\"899\" data-end=\"947\"\u003e\n\u003cli data-section-id=\"94mbhc\" data-start=\"899\" data-end=\"947\"\u003eReceives commands via FSSB (fiber optic bus)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1grvk41\" data-start=\"949\" data-end=\"1087\"\u003e🔄 \u003cstrong data-start=\"954\" data-end=\"977\"\u003eSignal coordination\u003c\/strong\u003e\n\u003cul data-start=\"982\" data-end=\"1087\"\u003e\n\u003cli data-section-id=\"b9b0hq\" data-start=\"982\" data-end=\"1087\"\u003eInterfaces between:\n\u003cul data-start=\"1008\" data-end=\"1087\"\u003e\n\u003cli data-section-id=\"v5g4ao\" data-start=\"1008\" data-end=\"1019\"\u003eCNC CPU\u003c\/li\u003e\n\u003cli data-section-id=\"7uatn3\" data-start=\"1024\" data-end=\"1055\"\u003ePower stage (IGBT inverter)\u003c\/li\u003e\n\u003cli data-section-id=\"zydsvk\" data-start=\"1060\" data-end=\"1087\"\u003eEncoder feedback system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"d52asf\" data-start=\"1089\" data-end=\"1189\"\u003e⚙️ \u003cstrong data-start=\"1094\" data-end=\"1113\"\u003eAxis management\u003c\/strong\u003e\n\u003cul data-start=\"1118\" data-end=\"1189\"\u003e\n\u003cli data-section-id=\"1vc1jby\" data-start=\"1118\" data-end=\"1189\"\u003eControls \u003cstrong data-start=\"1129\" data-end=\"1150\"\u003e1 or 2 servo axes\u003c\/strong\u003e depending on amplifier configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1191\" data-end=\"1283\"\u003e👉 Simple explanation:\u003cbr data-start=\"1213\" data-end=\"1216\"\u003e\u003cstrong data-start=\"1216\" data-end=\"1283\"\u003eIt is the “brain\/control board” inside a FANUC servo amplifier.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"1285\" data-end=\"1288\"\u003e\n\u003ch2 data-section-id=\"9xa5o9\" data-start=\"1290\" data-end=\"1314\"\u003e🏭 Where It Is Used\u003c\/h2\u003e\n\u003cul data-start=\"1316\" data-end=\"1453\"\u003e\n\u003cli data-section-id=\"1iksaft\" data-start=\"1316\" data-end=\"1361\"\u003eInside \u003cstrong data-start=\"1325\" data-end=\"1359\"\u003eFANUC Alpha i servo amplifiers\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"nhjb9g\" data-start=\"1362\" data-end=\"1453\"\u003eUsed in:\n\u003cul data-start=\"1375\" data-end=\"1453\"\u003e\n\u003cli data-section-id=\"9nr7ni\" data-start=\"1375\" data-end=\"1400\"\u003eCNC machining centers\u003c\/li\u003e\n\u003cli data-section-id=\"1uqvpnl\" data-start=\"1403\" data-end=\"1417\"\u003eCNC lathes\u003c\/li\u003e\n\u003cli data-section-id=\"12jgmzq\" data-start=\"1420\" data-end=\"1453\"\u003eMulti-axis automation systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1455\" data-end=\"1475\"\u003eWorks together with:\u003c\/p\u003e\n\u003cul data-start=\"1476\" data-end=\"1565\"\u003e\n\u003cli data-section-id=\"133zezb\" data-start=\"1476\" data-end=\"1526\"\u003e\n\u003cstrong data-start=\"1478\" data-end=\"1498\"\u003eA16B-2203 series\u003c\/strong\u003e (wiring\/interface boards)\u003c\/li\u003e\n\u003cli data-section-id=\"6ff1b6\" data-start=\"1527\" data-end=\"1565\"\u003ePower modules (IGBT drive section)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1567\" data-end=\"1570\"\u003e\n\u003ch2 data-section-id=\"qy0lzg\" data-start=\"1572\" data-end=\"1599\"\u003e🔍 Key Characteristics\u003c\/h2\u003e\n\u003cul data-start=\"1601\" data-end=\"1806\"\u003e\n\u003cli data-section-id=\"1encm2r\" data-start=\"1601\" data-end=\"1643\"\u003e✔ Internal PCB (not standalone device)\u003c\/li\u003e\n\u003cli data-section-id=\"39guh7\" data-start=\"1644\" data-end=\"1681\"\u003e✔ Dual-axis capable control board\u003c\/li\u003e\n\u003cli data-section-id=\"1sra9tq\" data-start=\"1682\" data-end=\"1724\"\u003e✔ Handles communication + motion logic\u003c\/li\u003e\n\u003cli data-section-id=\"cwhtw0\" data-start=\"1725\" data-end=\"1770\"\u003e✔ Essential for servo amplifier operation\u003c\/li\u003e\n\u003cli data-section-id=\"6bqf0w\" data-start=\"1771\" data-end=\"1806\"\u003e✔ Commonly repaired\/refurbished\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1808\" data-end=\"1811\"\u003e\n\u003ch2 data-section-id=\"1itn0hn\" data-start=\"1813\" data-end=\"1851\"\u003e🔄 Difference from A20B-2101-0041\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1853\" data-end=\"2021\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1853\" data-end=\"1877\"\u003e\n\u003ctr data-start=\"1853\" data-end=\"1877\"\u003e\n\u003cth data-start=\"1853\" data-end=\"1861\" data-col-size=\"sm\" class=\"\"\u003eModel\u003c\/th\u003e\n\u003cth data-start=\"1861\" data-end=\"1877\" data-col-size=\"md\" class=\"\"\u003eTypical Role\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1901\" data-end=\"2021\"\u003e\n\u003ctr data-start=\"1901\" data-end=\"1942\"\u003e\n\u003ctd data-start=\"1901\" data-end=\"1912\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1903\" data-end=\"1911\"\u003e0041\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1912\" data-end=\"1942\"\u003eEarlier \/ base control PCB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1943\" data-end=\"2021\"\u003e\n\u003ctd data-start=\"1943\" data-end=\"1954\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1945\" data-end=\"1953\"\u003e0042\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"1954\" data-end=\"2021\" data-col-size=\"md\"\u003eUpdated \/ variant (hardware revision or configuration-specific)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-start=\"2023\" data-end=\"2061\"\u003e👉 Functionally \u003cstrong data-start=\"2039\" data-end=\"2055\"\u003every similar\u003c\/strong\u003e, but:\u003c\/p\u003e\n\u003cul data-start=\"2062\" data-end=\"2153\"\u003e\n\u003cli data-section-id=\"lpa8vz\" data-start=\"2062\" data-end=\"2102\"\u003eMay differ in firmware compatibility\u003c\/li\u003e\n\u003cli data-section-id=\"4gih90\" data-start=\"2103\" data-end=\"2153\"\u003eUsed in slightly different amplifier revisions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2155\" data-end=\"2158\"\u003e\n\u003ch2 data-section-id=\"1dxthdy\" data-start=\"2160\" data-end=\"2186\"\u003e🧠 Simple Explanation\u003c\/h2\u003e\n\u003cp data-start=\"2188\" data-end=\"2334\"\u003e👉 \u003cstrong data-start=\"2191\" data-end=\"2334\"\u003eA20B-2101-0042 is an internal FANUC control PCB that processes motion commands and controls one or two servo axes inside a servo amplifier.\u003c\/strong\u003e\u003c\/p\u003e","brand":"JJAutomation","offers":[{"title":"Default Title","offer_id":44957484449928,"sku":"A20B-2101-0041","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-2026-04-01T124820.610.jpg?v=1775027907","url":"https:\/\/jjautomation.in\/products\/fanuc-ai-servo-amplifier-control-card-200vac-input-a20b-2101-0041-copy","provider":"JJAutomation","version":"1.0","type":"link"}