{"id":5169,"date":"2022-10-14T02:17:28","date_gmt":"2022-10-14T02:17:28","guid":{"rendered":"https:\/\/cnmegatech.com\/Axial-Fan\/?p=5169"},"modified":"2026-04-05T10:38:57","modified_gmt":"2026-04-05T10:38:57","slug":"how-to-choose-fan-function","status":"publish","type":"post","link":"https:\/\/cnmegatech.com\/Axial-Fan\/how-to-choose-fan-function\/","title":{"rendered":"How to choose Fan Function?"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-to-choose-fan-function\/#Rotation_Detective_Alarm_or_Tachometer_Function\" >Rotation Detective Alarm or Tachometer Function<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-to-choose-fan-function\/#Rotation_Detective_Alarm_for_AC_Cooling_Fans_EC_Cooling_Fans\" >Rotation Detective Alarm for AC Cooling Fans, EC Cooling Fans<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-to-choose-fan-function\/#Tachometer_Function_for_AC_Cooling_Fans_EC_Cooling_Fans\" >Tachometer Function for AC Cooling Fans, EC Cooling Fans<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-to-choose-fan-function\/#We_can_also_customize_the_speed_setting_to_better_fit_your_design\" >We can also customize the speed setting to better fit your design.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-to-choose-fan-function\/#Advantages\" >Advantages<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-to-choose-fan-function\/#Articles_you_may_also_like\" >Articles you may also like:<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-rotation-detective-alarm-or-tachometer-function\"><span class=\"ez-toc-section\" id=\"Rotation_Detective_Alarm_or_Tachometer_Function\"><\/span>Rotation Detective Alarm or Tachometer Function<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>If your equipment, such as server cabinets or nuclear power equipment, fails to cool and shuts down with the overheat\uff0cit will cause your significant losses,<\/p>\n\n\n\n<p>However, if your cooling fans are embedded with an alarm or signal function, then this risk can potentially be avoided\uff0cand ensure that the cooling fans operate properly. And Mega Tech can design your fan with RD and FG functions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Rotation_Detective_Alarm_for_AC_Cooling_Fans_EC_Cooling_Fans\"><\/span>Rotation Detective Alarm for AC Cooling Fans, EC Cooling Fans<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>It is designed for fans and can be directly connected to a buzzer or alarm flashing light. When the fan speed falls below 70%, the alarm will alert to the operator.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"565\" src=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/alarm-output-1024x565.png\" alt=\"alarm-output function for fan\" class=\"wp-image-5171\" srcset=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/alarm-output-1024x565.png 1024w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/alarm-output-300x166.png 300w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/alarm-output-768x424.png 768w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/alarm-output-1536x848.png 1536w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/alarm-output-600x331.png 600w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/alarm-output.png 1898w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>alarm-output function for fan<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tachometer_Function_for_AC_Cooling_Fans_EC_Cooling_Fans\"><\/span>Tachometer Function for AC Cooling Fans, EC Cooling Fans<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The Tachometer Function (Supplementary) (RDb) control is a collector opener with hardware similar to the Frequency Generator (Tachometer) (FG) control . The output signal goes high when the fan is spinning, but is set low when the fan is stopped or when the power is turned off. This output can be connected in parallel with the RDb of a series of fans that terminate in an alarm device that warns if any of the fans stop working.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"736\" height=\"233\" src=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/FREQUENCY-GENERATOR-WAVEFORM.jpg\" alt=\"FREQUENCY-GENERATOR-WAVEFORM for fan\" class=\"wp-image-5170\" srcset=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/FREQUENCY-GENERATOR-WAVEFORM.jpg 736w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/FREQUENCY-GENERATOR-WAVEFORM-300x95.jpg 300w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2022\/10\/FREQUENCY-GENERATOR-WAVEFORM-600x190.jpg 600w\" sizes=\"(max-width: 736px) 100vw, 736px\" \/><figcaption>FREQUENCY-GENERATOR-WAVEFORM for fan<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"We_can_also_customize_the_speed_setting_to_better_fit_your_design\"><\/span>We can also customize the speed setting to better fit your design.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>As mentioned above, the 2 alarm functions are different, one is based on rotation detection and the other is based on a tachometer with a signal output. The way it warns the operator and the visible signal output is different. This depends mainly on the available equipment and also on the user&#8217;s product application.<\/p>\n\n\n\n<p>For example, rotation is detected, so when the speed falls below the set value, the alarm goes off. So, if there is any condition such as high operating temperature; damaged fan or unstable power input that causes abnormal rotation speed, the alarm will go off to alert the operator. In other words, if you have higher requirements for thermal management of your equipment, but you also want to have as little cost as possible, then a cooling fan with Rotation Detective Alarm feature should be your choice.<\/p>\n\n\n\n<p>And the tachometer function, which is great for users who already have their own equipment and detection software. Users are free to set the signal output to suit their needs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Advantages\"><\/span>Advantages<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The advantage of a fan with Rotation Detective or Tachometer function is to know immediately if there is any discrepancy in the fan. It also helps to save on repair costs because it does not require physical inspection, especially if your equipment is installed with many cooling fans with Rotation Detective or Tachometer function feature, you can quickly find the fan with the discrepancy, which will save you a lot of repair time and labor and avoid possible greater damage.<\/p>\n\n\n\n<p><strong>Besides, we also have PWM function fan, you can check <a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-pwm-dc-axial-fan-works\/\">here<\/a>.<\/strong><\/p>\n\n\n\n<p><strong>Also <a href=\"https:\/\/www.ebmpapst.com\/\">EBM PAPST<\/a> REPLACEMENT fan, please check <a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/why-mega-fan-is-best-alternative-to-ebm-papst-fan\/\">here<\/a><\/strong>.<\/p>\n\n\n\n<p><strong><a href=\"http:\/\/www.cnmegatech.com\/\">Mega Tech<\/a>&nbsp;can customize your choice to meet even the most demanding restrictions. If you have any questions or wish to learn more about Axial fans, contact&nbsp;<a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/contact\/\">Mega team<\/a>&nbsp;today.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-articles-you-may-also-like\"><span class=\"ez-toc-section\" id=\"Articles_you_may_also_like\"><\/span>Articles you may also like:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/why-mega-fan-is-best-alternative-to-ebm-papst-fan\/\">Why Mega Fan is the best alternative to EBM Papst fan<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/ball-bearing-fans-vs-sleeve-bearing-fans\/\">Ball Bearing Fans VS Sleeve Bearing Fans<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/ec-fan-ec-cooling-fan-features-and-advantages\/\">EC fan | EC cooling fan features and advantages<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rotation Detective Alarm or Tachometer Function If your equipment, such as server cabinets or nuclear power equipment, fails to cool and shuts down with the overheat\uff0cit will cause your significant losses, However, if your cooling fans are embedded with an alarm or signal function, then this risk can potentially be avoided\uff0cand ensure that the cooling [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5170,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_joinchat":{"telephone":"+8613570567086"},"footnotes":""},"categories":[319,315],"tags":[893,497,564,512],"class_list":["post-5169","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application","category-purchase-guide","tag-fancontrol","tag-axial-fan","tag-axial-fans","tag-cooling-fans"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/posts\/5169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/comments?post=5169"}],"version-history":[{"count":2,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/posts\/5169\/revisions"}],"predecessor-version":[{"id":5175,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/posts\/5169\/revisions\/5175"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/media\/5170"}],"wp:attachment":[{"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/media?parent=5169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/categories?post=5169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/tags?post=5169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}