描述

本功能為保護(hù)電動機(jī)過熱而設(shè)置，它是變頻器內(nèi)cpu根據(jù)運(yùn)轉(zhuǎn)電流值和頻率計(jì)算出電動機(jī)的溫升，從而進(jìn)行過熱保護(hù)。本功能只適用于“一拖一”場合，而在“一拖多”時(shí)，則應(yīng)在各臺電動機(jī)上加裝熱繼電器。
電子熱保護(hù)設(shè)定值(%)=[電動機(jī)額定電流(a)/變頻器額定輸出電流(a)]×100%。

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