描述
PFEA112-20
再生處置不動作(用制動電阻時)把減速中防速度功用設(shè)置為無效。把自動加減速功用設(shè)定為無效。制動選件布線異常(用制動電阻時),變頻器輸出部損壞。確認制動單元、制動電阻裝置能否正確。檢查變頻器供電電壓能否超越額定電壓。制動電阻選擇的太大(用制動電阻時)改換適宜阻值和功率的制動電阻。變頻器內(nèi)部制動晶體管損壞,需求改換變頻器。伺服驅(qū)動器操作時須安裝于遮敝式的控制箱內(nèi),保持良好通風(fēng)與散熱,并且空氣中沒有水汽、可燃性與腐蝕性氣體。保持控制箱內(nèi)整潔,沒有銅絲、鐵屑等易導(dǎo)電細物,以免造成驅(qū)動器內(nèi)電路板短路。由于沒有滑環(huán)或整流器之類的轉(zhuǎn)動電氣接觸點,伺服電機維護主要是外部清潔和軸承替換工作。應(yīng)該定期進行外部清潔,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。如果電機或外殼采用風(fēng)冷,也要檢查和定期清理風(fēng)機。軸承壽命一般為1萬小時到2萬小時,電機在低于額定轉(zhuǎn)速、推力和徑向軸承負載極限條件下運行,軸承壽命會更長。每隔2500小時應(yīng)該檢查軸承有無明顯或異常噪音。如果聽到這種噪音,應(yīng)立即把電機送到中達電通相關(guān)維修點替換軸承。
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