{"id":5508,"date":"2021-10-15T08:09:05","date_gmt":"2021-10-15T06:09:05","guid":{"rendered":"https:\/\/knowledgebase.fischerpanda.de\/?p=5508"},"modified":"2023-01-27T10:48:08","modified_gmt":"2023-01-27T09:48:08","slug":"event-174-converter-dc-link-voltage-low-reverse","status":"publish","type":"post","link":"https:\/\/knowledgebase.fischerpanda.de\/?p=5508","title":{"rendered":"Event 174 \u2013 Converter DC Link Voltage Low\/Reverse"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">Event Description<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The measured DC link voltage on the power converter is too low or negative (reverse polarity).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The DC link voltage is too low if it is below the set voltage or below the expected system voltage.<\/li>\n\n\n\n<li>The error is triggered by the converter control unit, which is part of the Power Electronic Unit.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><img decoding=\"async\" width=\"56\" height=\"56\" class=\"wp-image-2536\" style=\"width: 56px;\" alt=\"\" src=\"https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2019\/10\/information_sbu_transparent_52px.png\"><br>The power converter is the power electronics unit that converts the generator voltage into the voltage required by the user system (e.g. inverter, rectifier or DC\/DC converter).<br>The DC link voltage is the voltage on high voltage electrolytic or polymer DC capacitors.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Error view<\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"128\" height=\"64\" src=\"https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2023\/01\/event-174-symbolic.jpg\" alt=\"\" class=\"wp-image-6274\"\/><figcaption class=\"wp-element-caption\"><em>Symbolic view<\/em><\/figcaption><\/figure>\n\n\n\n<h4 class=\"clear wp-block-heading\">Elements of the Event page<\/h4>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"857\" height=\"154\" src=\"https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2019\/05\/elements-of-an-error-page.png\" alt=\"Elements of an Event page: Event type, QR-Code, event number and event symbol or text.\" class=\"wp-image-776\" srcset=\"https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2019\/05\/elements-of-an-error-page.png 857w, https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2019\/05\/elements-of-an-error-page-300x54.png 300w, https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2019\/05\/elements-of-an-error-page-768x138.png 768w\" sizes=\"(max-width: 857px) 100vw, 857px\" \/><figcaption class=\"wp-element-caption\"><em>Elements of an Event page: Event type, QR-Code, event number and event symbol or text<\/em><\/figcaption><\/figure>\n\n\n\n<table class=\"wp-block-table\"><tbody><tr><td><strong>Event symbol<\/strong><\/td><td><strong>Consequences of the event<\/strong><\/td><\/tr><tr><td><img decoding=\"async\" width=\"18\" height=\"17\" class=\"wp-image-66\" style=\"width: 18px;\" alt=\"Error symbol\" src=\"https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2019\/04\/shutdown-symbol.jpg\"> <strong>Error event<\/strong><\/td><td>When an <strong>error event<\/strong> occurs, the monitored value has reached its error limit. Error events <strong>shutdown the generator<\/strong><\/td><\/tr><tr><td><img decoding=\"async\" width=\"19\" height=\"18\" class=\"wp-image-67\" style=\"width: 19px;\" alt=\"Warning symbol\" src=\"https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2019\/04\/warning-symbol.jpg\"> <strong>Warning event<\/strong><\/td><td>When a <strong>warning event<\/strong> occurs, the monitored value has reached its warning limit. Warning Events <strong>don&#8217;t shutdown the generator<\/strong><\/td><\/tr><tr><td><img decoding=\"async\" width=\"17\" height=\"17\" class=\"wp-image-69\" style=\"width: 17px;\" alt=\"Information symbol\" src=\"https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2019\/04\/info-symbol.jpg\"> <strong>Information event<\/strong><\/td><td>An <strong>Information event<\/strong> is for information purpose only and has <strong>no effect on the generator operation<\/strong><\/td><\/tr><\/tbody><\/table>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-dots\"\/>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Device that triggers this event:<\/strong><\/td><td><strong>Converter Control Unit <\/strong>(part of the Power Electronic Unit)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-dots\"\/>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Warning<\/td><td>No<\/td><\/tr><tr><td><strong>Error<\/strong><\/td><td><strong>Yes<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-dots\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">Safety instructions<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">These symbols are used to warn of the possibility of personal injury of lethal danger during certain maintenance work or operations. See Users Manual for Safety Information and complete operating information. Read these instructions carefully. For further information click on the corresponding symbol. Each link opens a new tab. <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft is-resized\"><a href=\"https:\/\/knowledgebase.fischerpanda.de\/?attachment_id=1652\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" src=\"https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2019\/08\/read-manual_wei\u00df_klein.jpg\" alt=\"Observe the instructions in the manual\" class=\"wp-image-1652\" width=\"78\" height=\"78\"\/><\/a><figcaption class=\"wp-element-caption\">MANDATORY INSTRUCTION: Observe the instructions in the manual<\/figcaption><\/figure>\n<\/div>\n\n\n<figure class=\"wp-block-image is-resized\"><a href=\"https:\/\/knowledgebase.fischerpanda.de\/?attachment_id=491\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" src=\"https:\/\/knowledgebase.fischerpanda.de\/wp-content\/uploads\/2019\/04\/warning_r_general.gif\" alt=\"General warning\" class=\"wp-image-491\" width=\"81\" height=\"70\"\/><\/a><figcaption class=\"wp-element-caption\">General warning<\/figcaption><\/figure>\n\n\n\n<h4 class=\"clear wp-block-heading\">Causes and solutions<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Common causes<\/strong><\/td><td><strong>Possible solutions<\/strong><\/td><\/tr><tr><td>Measurement lines in the power electronics are not connected, mixed up or defective.<\/td><td>Check the measurement lines for correct connection and for defects.<\/td><\/tr><tr><td>A negative voltage was applied to the DC connections (reverse polarity). Note: In case of electrolytic capacitors, this can destroy the power electronics.<\/td><td>Pay attention to correct polarity.<\/td><\/tr><tr><td>The voltage breaks down caused by a short circuit or high load.<\/td><td>Check for short circuits and fix them if necessary. <br>In case of high load reduce the load.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity clear is-style-dots\"\/>\n\n\n\n<h4 class=\"clear wp-block-heading\">Distributors and Services<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">For any service or maintenance questions, please contact Fischer Panda or our <a rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\" href=\"https:\/\/www.fischerpanda.de\/distributors-and-services.htm\" target=\"_blank\">worldwide partners<\/a>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-dots\"\/>\n","protected":false},"excerpt":{"rendered":"<p>The measured DC link voltage on the power converter is too low or negative (reverse polarity).<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[26],"tags":[],"class_list":["post-5508","post","type-post","status-publish","format-standard","hentry","category-event-codes","entry"],"acf":[],"_links":{"self":[{"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=\/wp\/v2\/posts\/5508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5508"}],"version-history":[{"count":6,"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=\/wp\/v2\/posts\/5508\/revisions"}],"predecessor-version":[{"id":6275,"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=\/wp\/v2\/posts\/5508\/revisions\/6275"}],"wp:attachment":[{"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}