{"id":5528,"date":"2021-10-15T12:38:19","date_gmt":"2021-10-15T10:38:19","guid":{"rendered":"https:\/\/knowledgebase.fischerpanda.de\/?p=5528"},"modified":"2023-01-27T11:46:05","modified_gmt":"2023-01-27T10:46:05","slug":"event-176-converter-dc-precharge-voltage-low","status":"publish","type":"post","link":"https:\/\/knowledgebase.fischerpanda.de\/?p=5528","title":{"rendered":"Event 176 \u2013 Converter DC Precharge Voltage Low"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">Event Description<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The measured DC precharge voltage (DC bus voltage) is below the expected or set precharge voltage. The converter may not be able to connecting to such a low voltage.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>This event is usually tiggered after a timeout, which is determined by the application and the mode of the application.<\/li>\n\n\n\n<li>To avoid high inrush currents, the application prevents the switching of the DC Link to the DC bus, if this error occurs.<\/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<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-176-symbolic.jpg\" alt=\"\" class=\"wp-image-6279\"\/><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 (or reverse polarity battery) was connected to the converter DC connectors.<\/td><td> Pay attention to correct polarity. <\/td><\/tr><tr><td>The DC bus voltage breaks down caused by a short circuit or high load in the DC bus system or by a defective battery. Or the DC bus has been disconnected by another system.<\/td><td>Check the DC bus system for short circuits and fix them if necessary. <br>Check the battery.<br>Check, if the DC bus could have been disconnected by another system.<br><\/td><\/tr><tr><td>A wrong DC voltage parameter is set in the user settings.<\/td><td>Check the DC voltage parameters in the user settings for correct values.<\/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 precharge voltage (DC bus voltage) is below the expected or set precharge voltage. The converter may not be able to connecting to such a low voltage.<\/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-5528","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\/5528","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=5528"}],"version-history":[{"count":3,"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=\/wp\/v2\/posts\/5528\/revisions"}],"predecessor-version":[{"id":6286,"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=\/wp\/v2\/posts\/5528\/revisions\/6286"}],"wp:attachment":[{"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/knowledgebase.fischerpanda.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}