描述
PFEA112-20
再生處置不動(dòng)作(用制動(dòng)電阻時(shí))把減速中防速度功用設(shè)置為無(wú)效。把自動(dòng)加減速功用設(shè)定為無(wú)效。制動(dòng)選件布線異常(用制動(dòng)電阻時(shí)),變頻器輸出部損壞。確認(rèn)制動(dòng)單元、制動(dòng)電阻裝置能否正確。檢查變頻器供電電壓能否超越額定電壓。制動(dòng)電阻選擇的太大(用制動(dòng)電阻時(shí))改換適宜阻值和功率的制動(dòng)電阻。變頻器內(nèi)部制動(dòng)晶體管損壞,需求改換變頻器。伺服驅(qū)動(dòng)器操作時(shí)須安裝于遮敝式的控制箱內(nèi),保持良好通風(fēng)與散熱,并且空氣中沒(méi)有水汽、可燃性與腐蝕性氣體。保持控制箱內(nèi)整潔,沒(méi)有銅絲、鐵屑等易導(dǎo)電細(xì)物,以免造成驅(qū)動(dòng)器內(nèi)電路板短路。由于沒(méi)有滑環(huán)或整流器之類的轉(zhuǎn)動(dòng)電氣接觸點(diǎn),伺服電機(jī)維護(hù)主要是外部清潔和軸承替換工作。應(yīng)該定期進(jìn)行外部清潔,以除去影響散熱的污染物。清潔周期取決于具體環(huán)境條件和污染物堆積程度。如果電機(jī)或外殼采用風(fēng)冷,也要檢查和定期清理風(fēng)機(jī)。軸承壽命一般為1萬(wàn)小時(shí)到2萬(wàn)小時(shí),電機(jī)在低于額定轉(zhuǎn)速、推力和徑向軸承負(fù)載極限條件下運(yùn)行,軸承壽命會(huì)更長(zhǎng)。每隔2500小時(shí)應(yīng)該檢查軸承有無(wú)明顯或異常噪音。如果聽(tīng)到這種噪音,應(yīng)立即把電機(jī)送到中達(dá)電通相關(guān)維修點(diǎn)替換軸承。
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