{"product_id":"r88d-ra20-omron-ac-servo-driver-unit","title":"R88D-RA20 | Omron AC Servo Driver Unit","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp\u003eThe R88D‑RA20 is a compact, discontinued AC servo drive delivering reliable motion control performance for industrial automation. It operates on a three-phase 200–220 VAC, 50\/60 Hz input and is optimized to interface with OMRON’s servo motors for accurate positioning and speed regulation.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable width=\"100%\" style=\"height: 494.597px; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 30.2083px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 30.2083px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eCondition\u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 30.2083px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 28.25px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 28.25px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 28.25px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eOmron\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 28.875px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 28.875px;\"\u003eCategory\u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 28.875px;\"\u003e\n\u003cdiv class=\"mt-1 md:mt-0 column-left basis-2\/4 divide-y divide-rad-gray-10 border-b-[0.0625rem] border-rad-gray-10 md:border-0\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem] md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"max-w-[8rem] break-words\"\u003e\n\u003cspan\u003eServo Products\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.8333px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 19.8333px;\"\u003e\u003cspan\u003ePart Number\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 19.8333px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003eR88D-RA20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 23.9444px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 23.9444px;\"\u003e\u003cspan\u003eSubcategory\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 23.9444px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eServo Drive\/Servo Control\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.8333px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 19.8333px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eStatus\u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 19.8333px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eDiscontinued by manufacturer\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 29.9583px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 29.9583px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eSupply Voltage    \u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 29.9583px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e200–220 VAC, three‑phase, 50\/60 Hz\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 32.6528px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 32.6528px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eOutput Current    \u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 32.6528px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eApprox. 20 A\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.1111px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 33.1111px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eControl Inputs    \u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 33.1111px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eAnalog or pulse train command signals\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 25.9167px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 25.9167px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eSafety Feature    \u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 25.9167px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eSafe Torque Off (STO) compliant\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.625px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 39.625px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eOperating Temp\/Humidity    \u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 39.625px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e0 °C to 55 °C, ≤85% RH (non‑condensing)\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.625px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 39.625px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eVibration Resistance    \u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 39.625px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e10–60 Hz at ≤5.88 m\/s²\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.6111px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 39.6111px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eMounting\u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 39.6111px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003ePanel‑mount or cabinet installation\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.625px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 39.625px;\"\u003eDiagnostics Outputs    \u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 39.625px;\"\u003eError, ready, positioning complete, torque\/speed limits\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 43.625px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 43.625px;\"\u003eApplication Interface    \u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 43.625px;\"\u003eSuited for use with OMRON servo motors and legacy systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.9028px;\"\u003e\n\u003cth style=\"width: 34.3479%; text-align: left; height: 19.9028px;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"width: 65.2884%; height: 19.9028px;\"\u003e~9.78 lbs (4.44 kg)\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eR88D-RA20\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe R88D‑RA20 is part of OMRON’s R‑series (RA variant) AC servo driver lineup. It supports three-phase supply voltage in the range of 200–220 VAC at either 50 Hz or 60 Hz, with an output current capability of approximately 20 A. Though now discontinued, it continues to be used in legacy systems for medium‑power motion control applications. It is engineered for precise control of OMRON servo motors, offering compatibility with analog\/pulse train input command methods and protective functions such as Safe Torque Off (STO).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInput Voltage Range: 200–220 VAC three‑phase at 50\/60 Hz for standard industrial power systems.\u003c\/li\u003e\n\u003cli\u003eOutput Capacity: Provides around 20 A output current for medium‑power servo motors.\u003c\/li\u003e\n\u003cli\u003eControl Compatibility: Works with analog and pulse train input control signals used throughout OMRON’s R‑series.\u003c\/li\u003e\n\u003cli\u003eSafety Function: Includes Safe Torque Off (STO) feature to disable motor torque instantly during emergencies.\u003c\/li\u003e\n\u003cli\u003eDiscontinuation: Officially discontinued by the manufacturer, with support limited to existing stock or repair providers.\u003c\/li\u003e\n\u003cli\u003eWeight: Approximately 9.78 lbs (4.44 kg), suitable for panel mounting and retrofit applications.\u003c\/li\u003e\n\u003cli\u003eDiagnostics: Provides status indicators and error outputs for servo ready, alarms, speed conformity, torque limits, and positioning complete.\u003c\/li\u003e\n\u003cli\u003eEnvironmental Rating: Designed for ambient operating temperature of 0–55 °C with up to 85% humidity (no condensation), vibration tolerance up to ~5.88 m\/s². \u003c\/li\u003e\n\u003cli\u003eMotor Integration: Seamless integration with OMRON’s servo motor models for consistent performance across the system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe R88D‑RA20 delivers the reliability and precision required for efficient motion control in industrial automation setups.\u003c\/p\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":49105296064768,"sku":"R88D-RA20","price":3538.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l1600_67e6be3f-73ea-4719-92f0-1d62566dcaca.webp?v=1785544375","url":"https:\/\/alotechparts.com\/products\/r88d-ra20-omron-ac-servo-driver-unit","provider":"Alo Tech Solutions","version":"1.0","type":"link"}