西門子主軸電機維修作為一種數(shù)字式執(zhí)行元件，在運動控制系統(tǒng)中得到廣泛的應用。在使用西門子電機的時候，感覺電機工作時有較大的發(fā)熱。實際上發(fā)熱是電機的一個普遍現(xiàn)象，但怎樣的發(fā)熱程度才算正常，以及如何盡量減小步進電機發(fā)熱呢?

　　1、將西門子電機發(fā)熱控制在合理范圍內、江蘇西門子伺服電機維修
　　電機發(fā)熱允許到什么程度，主要取決于電機內部絕緣等級。內部絕緣性能在高溫下(130度以上)才會被破壞。低于130度，電機不會損壞，表面溫度會在90度以下。表面溫度在70-80度都是正常的。滴幾滴水迅速氣化，則90度以上了;當然也可以用測溫槍來檢測。
　　2、西門子電機發(fā)熱隨速度變化的情況
　　采用恒流驅動技術時，電機在靜態(tài)和低速下，電流會維持相對恒定，以保持恒力矩輸出。速度高到一定程度，電機內部反電勢升高，電流將逐步下降，力矩也會下降。
　　3、發(fā)熱帶來的影響
　　電機發(fā)熱雖然一般不會影響電機的壽命，對大多數(shù)客戶來說沒必要理會。嚴重的發(fā)熱會帶來一些負面影響。如電機內部各部分熱膨脹系數(shù)不同導致結構應力的變化和內部氣隙的微小變化，會影響電機的動態(tài)響應，高速會容易失步。
　　4、減少電機的發(fā)熱
　　減少發(fā)熱，就是減少銅損和鐵損。 減少銅損有兩個方向，減少電阻和電流，這就要求在選型時盡量選擇電阻小和額定電流小的電機，對兩相電機，能用串聯(lián)的電機就不用并聯(lián)電機。細分驅動器由于電流波形接近正弦，諧波少，電機發(fā)熱也會較少。 減少鐵損的辦法不多，電壓等級與之有關，高壓驅動的電機雖然會帶來高速特性的提升，但也帶來發(fā)熱的增加。

西門子編碼器壞維修,西門子編碼器故障維修,西門子伺服電機維修,西門子伺服馬達維修,1FT5伺服電機維修,1FK6伺服馬達維修,1FT6電機維修,1FK7伺服電機維修,伺服電機1PH維修,西門子伺服電機離合器壞維修,西門子伺服電機剎車壞維修,西門子伺服電機軸承壞維修,西門子伺服電機電流高維修,西門子伺服電機電壓高維修

西門子主軸電機維修,西門子定制特制的非標電機,低壓電機維修,直流電機維修,西門子2KG電機維修,伺服電機維修,主軸電機維修,電機零部件(風扇,編碼器):

1PH系列維修 1FT5系列維修 1FT6系列維修 1FK6系列維修 1K7系列維修

ERN系列維修 EWN系列維修 ROD系列維修 2CW系列維修

1PA6105-4HF02-0BB3維修 1PA61054HF020BB3

1PA6133-4NF00-0BA3維修 1PA61334NF000BA3

1PA6163-4HF03-0BA3維修 1PA61634HF030BA3

1PA6163-4NF00-0BA3維修 1PA61634NF000BA3

1PH7101-2HF00-0BA3維修 1PH71012HF000BA3

1PH7101-2HF00-0BB3維修 1PH71012HF000BB3

1PH7101-2HF02-0BA3維修 1PH71012HF020BA3

1PH7101-2HF22-0BB3維修 1PH71012HF220BB3

1PH7101-2HF30-0BA0維修 1PH71012HF300BA0

1PH7101-2MF00-0BA3維修 1PH71012MF000BA3

1PH7101-2MF22-0BB3維修 1PH71012MF220BB3

1PH7101-2NF03-0BA0維修 1PH71012NF030BA0

1PH7103-2AD02-0BB3維修 1PH71032AD020BB3

1PH7103-2AD03-0BC3維修 1PH71032AD030BC3

1PH7103-2AF20-0BJ3維修 1PH71032AF200BJ3

1PH7103-2AG20-0BJ3維修 1PH71032AG200BJ3

1PH7103-2HD02-0BA0維修 1PH71032HD020BA0

1PH7103-2HD02-0BB3維修 1PH71032HD020BB3

1PH7103-2HD03-0BC3維修 1PH71032HD030BC3

1PH7103-2HF32-1KA3維修 1PH71032HF321KA3

1PH7103-2HG00-0BB3維修 1PH71032HG000BB3

1PH7103-2HG22-0BC3維修 1PH71032HG220BC3

1PH7103-2HG22-0BD3維修 1PH71032HG220BD3

1PH7103-2JF00-0BA3維修 1PH71032JF000BA3

1PH7103-2NF00-0BJ0維修 1PH71032NF000BJ0

1PH7103-2NF02-0BC0維修 1PH71032NF020BC0

1PH7103-2NF02-0BJ0維修 1PH71032NF020BJ0

1PH7103-2NF03-0BJ0維修 1PH71032NF030BJ0

1PH7103-2NF22-0BA0維修 1PH71032NF220BA0

1FE1051-6WN10-1BA0維修 1FE10516WN101BA0

1FE1052-6WN10-1BC2維修 1FE10526WN101BC2

1FE1082-4WN11-1BA2維修 1FE10824WN111BA2

1FE1092-6WN10-1BB0維修 1FE10926WN101BB0

1FE1092-6WN10-1BB2維修 1FE10926WN101BB2

1FE1116-6WR11-1BC2維修 1FE11166WR111BC2

1FK6032-6AK71-1SG0維修 1FK60326AK711SG0

1FK6032-6AK71-1SH0維修 1FK60326AK711SH0

1FK6032-6AK71-1TA2維修 1FK60326AK711TA2

1FK6032-6AK71-1TG0維修 1FK60326AK711TG0

1FK6040-6AK71-1AG0維修 1FK60406AK711AG0

1FK6040-6AK71-1AG2維修 1FK60406AK711AG2

1FK6040-6AK71-1AH0維修 1FK60406AK711AH0

1FK6040-6AK71-1TA0維修 1FK60406AK711TA0

1FK6042-6AF71-1AA2維修 1FK60426AF711AA2

1FK6042-6AF71-1AB0維修 1FK60426AF711AB0

1FK6042-6AF71-1AG0維修 1FK60426AF711AG0

1FK6042-6AF71-1AH0維修 1FK60426AF711AH0

1FK6042-6AF71-1EA0維修 1FK60426AF711EA0

1FK6042-6AF71-1EG0維修 1FK60426AF711EG0

1FK6042-6AF71-1EG2維修 1FK60426AF711EG2

1FK6042-6AF71-1EH0維修 1FK60426AF711EH0

1FK6042-6AF71-1GB2維修 1FK60426AF711GB2

1FK6042-6AF71-1GG0維修 1FK60426AF711GG0

1FK6042-6AF71-1GH2維修 1FK60426AF711GH2

1FK6042-6AF71-1SA0維修 1FK60426AF711SA0

1FK6042-6AF71-1SG0維修 1FK60426AF711SG0

1FK6042-6AF71-1SG2維修 1FK60426AF711SG2

1FK6042-6AF71-1SH0維修 1FK60426AF711SH0

1FK6042-6AF71-1TA0維修 1FK60426AF711TA0

1FK6042-6AF71-1TB0維修 1FK60426AF711TB0

1FK6042-6AF71-1TG0維修 1FK60426AF711TG0

1FK6042-6AF71-1TH0維修 1FK60426AF711TH0

1FK6060-6AF71-1AA2維修 1FK60606AF711AA2

1FK6060-6AF71-1AB0維修 1FK60606AF711AB0

1FK6060-6AF71-1AG0維修 1FK60606AF711AG0

1FK6060-6AF71-1AH0維修 1FK60606AF711AH0

1FK6060-6AF71-1EA0維修 1FK60606AF711EA0

1FK6060-6AF71-1EG0維修 1FK60606AF711EG0

1FK6060-6AF71-1EH0維修 1FK60606AF711EH0

1FK6060-6AF71-1TG0維修 1FK60606AF711TG0

1FK6063-6AF71-1AA2維修 1FK60636AF711AA2

1FK6063-6AF71-1AB0維修 1FK60636AF711AB0

1FK6063-6AF71-1AB2維修 1FK60636AF711AB2

1FK6063-6AF71-1AG0維修 1FK60636AF711AG0

1FK6063-6AF71-1AG2維修 1FK60636AF711AG2

1FK6063-6AF71-1AH0維修 1FK60636AF711AH0

1FK6063-6AF71-1AH2維修 1FK60636AF711AH2

1FK6063-6AF71-1EG0維修 1FK60636AF711EG0

1FK6063-6AF71-1EH0維修 1FK60636AF711EH0

1FK6063-6AF71-1GH2維修 1FK60636AF711GH2

1FK6063-6AF71-1SA0維修 1FK60636AF711SA0

1FK6063-6AF71-1TB0維修 1FK60636AF711TB0

1FK6063-6AF71-1TG0維修 1FK60636AF711TG0

1FK6063-6AF71-1TH0維修 1FK60636AF711TH0

1FK6080-6AF71-1AG0維修 1FK60806AF711AG0

1FK6080-6AF71-1TH0維修 1FK60806AF711TH0

1FK6083-6AF71-1AB0維修 1FK60836AF711AB0

1FK6083-6AF71-1AG0維修 1FK60836AF711AG0

1FK6083-6AF71-1AG2維修 1FK60836AF711AG2

1FK6083-6AF71-1AH0維修 1FK60836AF711AH0

1FK6083-6AF71-1EA0維修 1FK60836AF711EA0

1FK6083-6AF71-1EB0維修 1FK60836AF711EB0

1FK6083-6AF71-1EG0維修 1FK60836AF711EG0

1FK6083-6AF71-1EH0維修 1FK60836AF711EH0

1FK6083-6AF71-1TB0維修 1FK60836AF711TB0

1FK6083-6AF71-1TH0維修 1FK60836AF711TH0

1FK6100-8AF71-1AH0維修 1FK61008AF711AH0

1FK6100-8AF71-1SA0維修 1FK61008AF711SA0

1FK6100-8AF71-1TA0維修 1FK61008AF711TA0

1FK6101-8AF71-1AA0維修 1FK61018AF711AA0

1FK6101-8AF71-1AG0維修 1FK61018AF711AG0

1FK6103-8AF71-1AB2維修 1FK61038AF711AB2

1FK6103-8AF71-1AH0維修 1FK61038AF711AH0

1FK6103-8AF71-1EH2維修 1FK61038AF711EH2

1FK7015-5AK71-1AB0維修 1FK70155AK711AB0

1FK7022-5AK21-1DA0維修 1FK70225AK211DA0

1FK7022-5AK21-1DA3維修 1FK70225AK211DA3

1FK7022-5AK21-1DB0維修 1FK70225AK211DB0

1FK7022-5AK21-1DB3維修 1FK70225AK211DB3

1FK7022-5AK21-1DG0維修 1FK70225AK211DG0

1FK7022-5AK21-1DG3維修 1FK70225AK211DG3

1FK7022-5AK21-1DH0維修 1FK70225AK211DH0

1FK7022-5AK21-1DH3維修 1FK70225AK211DH3

1FK7022-5AK21-1LA0維修 1FK70225AK211LA0

1FK7022-5AK21-1LA3維修 1FK70225AK211LA3

1FK7022-5AK21-1LB0維修 1FK70225AK211LB0

1FK7022-5AK21-1LG0維修 1FK70225AK211LG0

1FK7022-5AK21-1LG3維修 1FK70225AK211LG3

1FK7022-5AK21-1LH0維修 1FK70225AK211LH0

1FK7022-5AK21-1LH3維修 1FK70225AK211LH3

1FK7022-5AK21-1PA0維修 1FK70225AK211PA0

1FK7022-5AK21-1PA3維修 1FK70225AK211PA3

1FK7022-5AK21-1PB0維修 1FK70225AK211PB0

1FK7022-5AK21-1PB3維修 1FK70225AK211PB3

1FK7022-5AK21-1PG0維修 1FK70225AK211PG0

1FK7022-5AK21-1PG3維修 1FK70225AK211PG3

1FK7022-5AK21-1PH0維修 1FK70225AK211PH0

1FK7022-5AK21-1PH3維修 1FK70225AK211PH3

1FK7022-5AK21-1SA0維修 1FK70225AK211SA0

1FK7022-5AK21-1SA3維修 1FK70225AK211SA3

1FK7022-5AK21-1SB0維修 1FK70225AK211SB0

1FK7022-5AK21-1SB3維修 1FK70225AK211SB3

1FK7022-5AK21-1SG0維修 1FK70225AK211SG0

1FK7022-5AK21-1SG3維修 1FK70225AK211SG3

1FK7022-5AK21-1SH0維修 1FK70225AK211SH0

1FK7022-5AK21-1SH3維修 1FK70225AK211SH3

1FK7022-5AK21-1TA0維修 1FK70225AK211TA0

1FK7022-5AK21-1TA3維修 1FK70225AK211TA3

1FK7022-5AK21-1TB0維修 1FK70225AK211TB0

1FK7022-5AK21-1TB3維修 1FK70225AK211TB3

1FK7022-5AK21-1TG0維修 1FK70225AK211TG0

1FK7022-5AK21-1TG3維修 1FK70225AK211TG3

1FK7022-5AK21-1TH0維修 1FK70225AK211TH0

1FK7022-5AK21-1TH3維修 1FK70225AK211TH3

1FK7022-5AK21-1UA0維修 1FK70225AK211UA0

1FK7022-5AK21-1UA3維修 1FK70225AK211UA3

1FK7022-5AK21-1UB0維修 1FK70225AK211UB0

1FK7022-5AK21-1UB3維修 1FK70225AK211UB3

1FK7022-5AK21-1UG0維修 1FK70225AK211UG0

1FK7022-5AK21-1UG3維修 1FK70225AK211UG3

1FK7022-5AK21-1UH0維修 1FK70225AK211UH0

1FK7022-5AK21-1UH3維修 1FK70225AK211UH3

1FK7022-5AK71-1AA0維修 1FK70225AK711AA0

1FK7022-5AK71-1AA5維修 1FK70225AK711AA5

1FK7022-5AK71-1AB0維修 1FK70225AK711AB0

1FK7022-5AK71-1AG2維修 1FK70225AK711AG2

1FK7022-5AK71-1DA0維修 1FK70225AK711DA0

1FK7022-5AK71-1DG0維修 1FK70225AK711DG0

1FK7022-5AK71-1HG0維修 1FK70225AK711HG0

1FK7022-5AK71-1HH0維修 1FK70225AK711HH0

1FK7022-5AK71-1HH3維修 1FK70225AK711HH3

1FK7022-5AK71-1LA3維修 1FK70225AK711LA3

1FK7022-5AK71-1LG0維修 1FK70225AK711LG0

1FK7022-5AK71-1LG3維修 1FK70225AK711LG3

1FK7022-5AK71-1PA0維修 1FK70225AK711PA0

1FK7022-5AK71-1PA3維修 1FK70225AK711PA3

1FK7022-5AK71-1PG3維修 1FK70225AK711PG3

1FK7022-5AK71-1SG0維修 1FK70225AK711SG0

1FK7022-5AK71-1SG3維修 1FK70225AK711SG3

1FK7022-5AK71-1TA0維修 1FK70225AK711TA0

1FK7022-5AK71-1TG0維修 1FK70225AK711TG0

1FK7022-5AK71-1TH0維修 1FK70225AK711TH0

1FK7032-5AK71-1AB0維修 1FK70325AK711AB0

1FK7032-5AK71-1AG0維修 1FK70325AK711AG0

1FK7032-5AK71-1AG2維修 1FK70325AK711AG2

1FK7032-5AK71-1AG3維修 1FK70325AK711AG3

1FK7032-5AK71-1AH0維修 1FK70325AK711AH0

1FK7032-5AK71-1DA0維修 1FK70325AK711DA0

1FK7032-5AK71-1DA5維修 1FK70325AK711DA5

1FK7032-5AK71-1DG3維修 1FK70325AK711DG3

1FK7032-5AK71-1HA2維修 1FK70325AK711HA2

1FK7032-5AK71-1HG0維修 1FK70325AK711HG0

1FK7032-5AK71-1HH0維修 1FK70325AK711HH0

1FK7032-5AK71-1LG3維修 1FK70325AK711LG3

1FK7032-5AK71-1LH3維修 1FK70325AK711LH3

1FK7032-5AK71-1PA0維修 1FK70325AK711PA0

1FK7032-5AK71-1PA3維修 1FK70325AK711PA3

1FK7032-5AK71-1PG0維修 1FK70325AK711PG0

1FK7032-5AK71-1PG3維修 1FK70325AK711PG3

1FK7032-5AK71-1SA0維修 1FK70325AK711SA0

1FK7032-5AK71-1SG0維修 1FK70325AK711SG0

1FK7032-5AK71-1SH0維修 1FK70325AK711SH0

1FK7032-5AK71-1TA0維修 1FK70325AK711TA0

1FK7032-5AK71-1TG0維修 1FK70325AK711TG0

1FK7032-5AK71-1TG2維修 1FK70325AK711TG2

1FK7032-5AK71-1TH0維修 1FK70325AK711TH0

1FK7033-7AF21-1PA3維修 1FK70337AF211PA3

1FK7033-7AF21-1PB3維修 1FK70337AF211PB3

1FK7033-7AF21-1PG0維修 1FK70337AF211PG0

1FK7033-7AF21-1PG3維修 1FK70337AF211PG3

1FK7033-7AK71-1AA0維修 1FK70337AK711AA0

1FK7033-7AK71-1HG0維修 1FK70337AK711HG0

1FK7033-7AK71-1HH3維修 1FK70337AK711HH3

1FK7033-7AK71-1PG3維修 1FK70337AK711PG3

1FK7033-7AK71-1TA0維修 1FK70337AK711TA0

1FK7033-7AK71-1TG0維修 1FK70337AK711TG0

1FK7033-7AK71-1TH0維修 1FK70337AK711TH0

1FK7034-5AK71-1AG3維修 1FK70345AK711AG3

1FK7034-5AK71-1AH0維修 1FK70345AK711AH0

1FK7034-5AK71-1DG0維修 1FK70345AK711DG0

1FK7034-5AK71-1PA0維修 1FK70345AK711PA0

1FK7034-5AK71-1PG0維修 1FK70345AK711PG0

1FK7034-5AK71-1TH0維修 1FK70345AK711TH0

1FK7040-5AK71-1AG0維修 1FK70405AK711AG0

1FK7040-5AK71-1AG8維修 1FK70405AK711AG8

1FK7040-5AK71-1DA5維修 1FK70405AK711DA5

1FK7040-5AK71-1DB2維修 1FK70405AK711DB2

1FK7040-5AK71-1EA0維修 1FK70405AK711EA0

1FK7040-5AK71-1EG0維修 1FK70405AK711EG0

1FK7040-5AK71-1EH0維修 1FK70405AK711EH0

1FK7040-5AK71-1SA2維修 1FK70405AK711SA2

1FK7040-5AK71-1SH0維修 1FK70405AK711SH0

1FK7040-5AK71-1TA0維修 1FK70405AK711TA0

1FK7040-5AK71-1TA2維修 1FK70405AK711TA2

1FK7040-5AK71-1TA3維修 1FK70405AK711TA3

1FK7040-5AK71-1TG0維修 1FK70405AK711TG0

1FK7040-5AK71-1TH2維修 1FK70405AK711TH2

1FK7042-5AF21-1PA3維修 1FK70425AF211PA3

1FK7042-5AF21-1PB3維修 1FK70425AF211PB3

1FK7042-5AF21-1PG3維修 1FK70425AF211PG3

1FK7042-5AF21-1SG3維修 1FK70425AF211SG3

1FK7042-5AF71-1AA0維修 1FK70425AF711AA0

1FK7042-5AF71-1AA2維修 1FK70425AF711AA2

1FK7042-5AF71-1AB0維修 1FK70425AF711AB0

1FK7042-5AF71-1AG0維修 1FK70425AF711AG0

1FK7042-5AF71-1AG2維修 1FK70425AF711AG2

1FK7042-5AF71-1AG5維修 1FK70425AF711AG5

1FK7042-5AF71-1AH0維修 1FK70425AF711AH0

1FK7042-5AF71-1AH2維修 1FK70425AF711AH2

1FK7042-5AF71-1DG3維修 1FK70425AF711DG3

1FK7042-5AF71-1EA0維修 1FK70425AF711EA0

1FK7042-5AF71-1EA2維修 1FK70425AF711EA2

1FK7042-5AF71-1EA3維修 1FK70425AF711EA3

1FK7042-5AF71-1EA5維修 1FK70425AF711EA5

1FK7042-5AF71-1EB2維修 1FK70425AF711EB2

1FK7042-5AF71-1EG0維修 1FK70425AF711EG0

1FK7042-5AF71-1EG2維修 1FK70425AF711EG2

1FK7042-5AF71-1EG3維修 1FK70425AF711EG3

1FK7042-5AF71-1EH0維修 1FK70425AF711EH0

1FK7042-5AF71-1EH2維修 1FK70425AF711EH2

1FK7042-5AF71-1FA5維修 1FK70425AF711FA5

1FK7042-5AF71-1FB0維修 1FK70425AF711FB0

1FK7042-5AF71-1FG5維修 1FK70425AF711FG5

1FK7042-5AF71-1FH3維修 1FK70425AF711FH3

1FK7042-5AF71-1GA5維修 1FK70425AF711GA5

1FK7042-5AF71-1GB0維修 1FK70425AF711GB0

1FK7042-5AF71-1GB2維修 1FK70425AF711GB2

1FK7042-5AF71-1GG0維修 1FK70425AF711GG0

1FK7042-5AF71-1GG3維修 1FK70425AF711GG3

1FK7042-5AF71-1GH2維修 1FK70425AF711GH2

1FK7042-5AF71-1GH5維修 1FK70425AF711GH5

1FK7042-5AF71-1KA3維修 1FK70425AF711KA3

1FK7042-5AF71-1KA5維修 1FK70425AF711KA5

1FK7042-5AF71-1KB0維修 1FK70425AF711KB0

1FK7042-5AF71-1KG0維修 1FK70425AF711KG0

1FK7042-5AF71-1KG3維修 1FK70425AF711KG3

1FK7042-5AF71-1PA0維修 1FK70425AF711PA0

1FK7042-5AF71-1PA3維修 1FK70425AF711PA3

1FK7042-5AF71-1PB3維修 1FK70425AF711PB3

1FK7042-5AF71-1PG0維修 1FK70425AF711PG0

1FK7042-5AF71-1PG3維修 1FK70425AF711PG3

1FK7042-5AF71-1TG2維修 1FK70425AF711TG2

1FK7042-5AF71-1TH0維修 1FK70425AF711TH0

1FK7042-5AF71-1TH2維修 1FK70425AF711TH2

1FK7042-5AF71-1UA0維修 1FK70425AF711UA0

1FK7042-5AF71-1UA3維修 1FK70425AF711UA3

1FK7042-5AF71-1UB0維修 1FK70425AF711UB0

1FK7042-5AF71-1UG0維修 1FK70425AF711UG0

1FK7042-5AK71-1AB2維修 1FK70425AK711AB2

1FK7042-5AK71-1AB5維修 1FK70425AK711AB5

1FK7042-5AK71-1AH5維修 1FK70425AK711AH5

1FK7042-5AK71-1EB5維修 1FK70425AK711EB5

1FK7042-5AK71-1EG0維修 1FK70425AK711EG0

1FK7042-5AK71-1EH0維修 1FK70425AK711EH0

1FK7042-5AK71-1EH2維修 1FK70425AK711EH2

1FK7042-5AK71-1EH5維修 1FK70425AK711EH5

1FK7042-5AK71-1FA0維修 1FK70425AK711FA0

1FK7042-5AK71-1FG0維修 1FK70425AK711FG0

1FK7042-5AK71-1FH0維修 1FK70425AK711FH0

1FK7042-5AK71-1GB2維修 1FK70425AK711GB2

1FK7042-5AK71-1KB0維修 1FK70425AK711KB0

1FK7042-5AK71-1PA0維修 1FK70425AK711PA0

1FK7042-5AK71-1PG3維修 1FK70425AK711PG3

1FK7042-5AK71-1SA0維修 1FK70425AK711SA0

1FK7042-5AK71-1TA0維修 1FK70425AK711TA0

1FK7042-5AK71-1TA2維修 1FK70425AK711TA2

1FK7042-5AK71-1TA3維修 1FK70425AK711TA3

1FK7042-5AK71-1TG0維修 1FK70425AK711TG0

1FK7042-5AK71-1TG2維修 1FK70425AK711TG2

1FK7043-7AF21-1PA0維修 1FK70437AF211PA0

1FK7043-7AF21-1PG3維修 1FK70437AF211PG3

1FK7043-7AF21-1PH3維修 1FK70437AF211PH3/