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HDS02.2-W040N-HS32-01-FW
HDS02.2-W040N-HS09-01-FW?
HDS02.2-W040N-HS45-01-FW?
CACR-02-MM2A?
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CACR-02-TE2K7?
CACR-02-MM1P?
CACR-02-SU23GC2?
CACR-02-SU3CY1
CACR-02-SU23GC?
CACR-PR02AA4AH
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1FK7060-5AF71-1EH2
張小姐
T:0592-5682282 ?
F:0592-5680772 ??
?
伺服電機(jī)相比步進(jìn)電機(jī)優(yōu)點(diǎn)
一、 低頻特性
步進(jìn)電機(jī)在低速運(yùn)行時(shí)會(huì)出現(xiàn)低頻振動(dòng)現(xiàn)象,電機(jī)運(yùn)行平穩(wěn)性略于伺服電機(jī)。
交流伺服電機(jī)運(yùn)轉(zhuǎn)非常平穩(wěn),即使在低速時(shí)也不會(huì)出現(xiàn)振動(dòng)現(xiàn)象。
二、矩頻特性
步進(jìn)電機(jī)的輸出力矩會(huì)隨轉(zhuǎn)速升高而下降,且在較高轉(zhuǎn)速時(shí)會(huì)急劇下降,步進(jìn)電機(jī)在高速時(shí)力矩會(huì)很小?
交流伺服電機(jī)為恒力矩輸出,在其額定轉(zhuǎn)速內(nèi)能保持力矩不變,都能輸出額定轉(zhuǎn)矩。
三、控制精度
步進(jìn)電機(jī)的控制為開環(huán)控制,啟動(dòng)頻率過高或負(fù)載過大易出現(xiàn)丟步或堵轉(zhuǎn)的現(xiàn)象,停止時(shí)轉(zhuǎn)速過高易出現(xiàn)過沖的現(xiàn)象,所以為保證其控制精度,選型時(shí)電機(jī)出力要有充分余量,應(yīng)處理好起、降速問題。?
伺服電機(jī)驅(qū)動(dòng)系統(tǒng)為閉環(huán)控制,驅(qū)動(dòng)器可直接對(duì)電機(jī)編碼器反饋信號(hào)進(jìn)行采樣,電機(jī)和驅(qū)動(dòng)器內(nèi)部構(gòu)成閉環(huán)控制,在其額定力矩內(nèi)不會(huì)出現(xiàn)步進(jìn)電機(jī)的丟步情況,出現(xiàn)過沖情況能補(bǔ)回來,控制性精度能更為可靠。
1FK6080-6AF71-1TH0?
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1FK6083-6AF71-1AB0
2108I/al/gn/vh/fh/fl/eng/fo472
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