{"id":214614,"date":"2026-10-23T10:16:57","date_gmt":"2026-10-23T08:16:57","guid":{"rendered":"https:\/\/e-servo.com\/?p=214614"},"modified":"2026-10-23T10:17:50","modified_gmt":"2026-10-23T08:17:50","slug":"frein-de-servomoteur-fonctionnement-pannes-et-tests","status":"publish","type":"post","link":"https:\/\/e-servo.com\/fr\/news\/frein-de-servomoteur-fonctionnement-pannes-et-tests\/","title":{"rendered":"Frein de servomoteur : fonctionnement, pannes et tests."},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column width=\u00a0\u00bb1\/1&Prime;][vc_column_text uncode_shortcode_id=\u00a0\u00bb165720&Prime;]<\/p>\n<p style=\"text-align: left\">Sur de nombreux servomoteurs industriels, le frein est un indispensable pour garantir la s\u00e9curit\u00e9 de l&rsquo;utilisateur et maintenir la position d&rsquo;un axe lorsque le moteur est \u00e0 l&rsquo;arr\u00eat.<\/p>\n<p style=\"text-align: left\">Pourtant, lorsqu&rsquo;il pr\u00e9sente une d\u00e9faillance, les sympt\u00f4mes peuvent \u00eatre difficiles \u00e0 interpr\u00e9ter : axe bloqu\u00e9, moteur qui refuse de tourner, perte de maintien de position\u2026<\/p>\n<p>Dans cet article, nous vous expliquons comment fonctionne un frein de servomoteur, quelles sont les pannes les plus courantes, comment les identifier et quelles solutions existent pour retrouver un fonctionnement normal.[\/vc_column_text][vc_column_text uncode_shortcode_id=\u00a0\u00bb151601&Prime;]<\/p>\n<h2>Qu&rsquo;est-ce qu&rsquo;un frein de servomoteur ?<\/h2>\n<p>Un frein de servomoteur est un <strong>frein \u00e9lectromagn\u00e9tique<\/strong> int\u00e9gr\u00e9 \u00e0 l&rsquo;int\u00e9rieur du moteur.<\/p>\n<p>Sa mission est de maintenir l&rsquo;axe immobile lorsque le servomoteur n&rsquo;est plus aliment\u00e9.<\/p>\n<p>Il est principalement utilis\u00e9 :<\/p>\n<ul>\n<li>sur les axes verticaux afin d&#8217;emp\u00eacher la chute d&rsquo;une charge<\/li>\n<li>sur les machines n\u00e9cessitant un maintien pr\u00e9cis de la position<\/li>\n<li>lors des arr\u00eats d&rsquo;urgences ou des coupures d&rsquo;alimentation<\/li>\n<\/ul>\n<h2>Comment fonctionne-t-il ?<\/h2>\n<p>En l&rsquo;absence d&rsquo;alimentation, des ressorts appliquent une pression sur le disque de frein afin de maintenir l&rsquo;arbre moteur immobile. Lorsque la bobine est aliment\u00e9e, le champ magn\u00e9tique lib\u00e8re le disque : le moteur peut alors tourner librement.<\/p>\n<p><strong>Vous souhaitez voir son fonctionnement en d\u00e9tail ?\u00a0<\/strong><\/p>\n<p>Nous avons justement r\u00e9alis\u00e9 une vid\u00e9o qui explique le fonctionnement d&rsquo;un frein \u00e9tape par \u00e9tape.<\/p>\n<p>\ud83c\udfa5<strong> <a href=\"https:\/\/youtube.com\/shorts\/oMMvL-i_HkE?si=iZFjmUZbey4jcFdk\" target=\"_blank\" rel=\"noopener\">Voir la vid\u00e9o sur Youtube.\u00a0<\/a><\/strong><\/p>\n<h2>Quels sont les principales pannes d&rsquo;un frein de servomoteur ?<\/h2>\n<p>Bien que les freins soient con\u00e7us pour durer de nombreuses ann\u00e9es, ils peuvent pr\u00e9senter diff\u00e9rents types de d\u00e9faillances. Identifier les sympt\u00f4mes permet souvent de gagner un temps pr\u00e9cieux lors du diagnostic.<\/p>\n<ol>\n<li>\n<h3>Le frein glisse<\/h3>\n<\/li>\n<\/ol>\n<p>Celui-ci semble fonctionner, mais il ne maintient plus correctement l&rsquo;axe lorsque le servomoteur est \u00e0 l&rsquo;arr\u00eat.<\/p>\n<p><strong>Les causes possibles :<\/strong><\/p>\n<ul>\n<li>Pollution (huile, graisse, poussi\u00e8re ou autre contaminants).<\/li>\n<li>Usure des surfaces de friction.<\/li>\n<\/ul>\n<h3>\u00a0 \u00a0 \u00a0 \u00a0 2. Le frein ne d\u00e9freine pas<\/h3>\n<p>Le moteur reste bloqu\u00e9 alors que la machine lui demande de tourner.<\/p>\n<p><strong>Les causes possibles :\u00a0<\/strong><\/p>\n<ul>\n<li>Usure du m\u00e9canisme<\/li>\n<li>Bobinage grill\u00e9<\/li>\n<\/ul>\n<h3>\u00a0 \u00a0 \u00a0 \u00a0 3. Le frein ne se r\u00e9enclenche pas (ne refreine pas)<\/h3>\n<p>Le moteur fonctionne normalement, mais une fois l&rsquo;alimentation coup\u00e9e, le frein ne maintien plus correctement l&rsquo;axe.<\/p>\n<p><strong>Les causes possibles :\u00a0\u00a0<\/strong><\/p>\n<ul>\n<li>Usure importante du frein<\/li>\n<li>Aimants permanents d\u00e9magn\u00e9tis\u00e9s<\/li>\n<\/ul>\n<h2>Comment tester un frein de servomoteur ?<\/h2>\n<p>Il n&rsquo;existe pas de proc\u00e9dure de test unique pour tous les freins de servomoteurs.<\/p>\n<p>La m\u00e9thode d\u00e9pend notamment :<\/p>\n<ul>\n<li>Du mod\u00e8le du frein<\/li>\n<li>Du constructeur (Siemens, Schneider, Bosch Rexroth, Yaskawa&#8230;)<\/li>\n<li>De l&rsquo;application sur laquelle il est install\u00e9<\/li>\n<li>&#8230;<\/li>\n<\/ul>\n<p>C&rsquo;est pourquoi un diagnostic fiable n\u00e9cessite une analyse de l&rsquo;ensemble du syst\u00e8me, et non pas uniquement du frein.<\/p>\n<p>\ud83d\udc49 <strong>Vous avez un doute sur l&rsquo;\u00e9tat du frein de votre servomoteur ?\u00a0<\/strong><\/p>\n<p>Notre \u00e9quipe peut r\u00e9aliser un diagnostic afin d&rsquo;identifier pr\u00e9cis\u00e9ment l&rsquo;origine de la panne et vous proposer la solution la plus adapt\u00e9e.<\/p>\n<p>N&rsquo;h\u00e9sitez pas \u00e0 nous contacter ! \ud83d\ude09[\/vc_column_text][\/vc_column][\/vc_row][vc_row unlock_row=\u00a0\u00bb\u00a0\u00bb row_height_percent=\u00a0\u00bb25&Prime; overlay_alpha=\u00a0\u00bb50&Prime; gutter_size=\u00a0\u00bb3&Prime; column_width_percent=\u00a0\u00bb100&Prime; shift_y=\u00a0\u00bb0&Prime; z_index=\u00a0\u00bb0&Prime; content_parallax=\u00a0\u00bb0&Prime; uncode_shortcode_id=\u00a0\u00bb920055&Prime;][vc_column width=\u00a0\u00bb1\/1&Prime;][uncode_twentytwenty media_before=\u00a0\u00bb214656&Prime; media_after=\u00a0\u00bb214657&Prime;][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column width=\u00a0\u00bb1\/1&Prime;][vc_column_text uncode_shortcode_id=\u00a0\u00bb165720&Prime;] Sur de nombreux servomoteurs industriels, le frein est un indispensable pour garantir la s\u00e9curit\u00e9 de l&rsquo;utilisateur et [&hellip;]<\/p>\n","protected":false},"author":49,"featured_media":217536,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-214614","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - 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