西門子變頻器選型時的注意事項(xiàng)： 1、負(fù)載類型和變頻器的選擇：電動機(jī)所帶動的負(fù)載不一樣，對變頻器的要求也不一樣。 A：是普通的負(fù)載：對變頻器的要求為簡單，只要變頻器容量等于電動機(jī)容量即可（空壓機(jī)、深水泵、泥沙泵、快速變化的音樂噴泉需加大容量）。 B：起重機(jī)類負(fù)載：這類負(fù)載的特點(diǎn)是啟動時沖擊很大，因此要求變頻器有一定余量。同時，在重物下放時，會有能量回饋，因此要使用制動單元或采用共用母線方式。 C：不均行負(fù)載：有的負(fù)載有時輕，有時重，此時應(yīng)按照重負(fù)載的情況來選擇變頻器容量，例如軋鋼機(jī)機(jī)械、粉碎機(jī)械、攪拌機(jī)等。 D：大慣性負(fù)載：如離心機(jī)、沖床、水泥廠的旋轉(zhuǎn)窯，此類負(fù)載慣性很大，因此啟動時可能會振蕩，電動機(jī)減速時有能量回饋。應(yīng)該用容量稍大的變頻器來加快啟動，避免振蕩。配合制動單元回饋電能。 2、長期低速動轉(zhuǎn)，由于電機(jī)發(fā)熱量較高，風(fēng)扇冷卻能力降低，因此必須采用加大減速比的方式或改用6級電機(jī)，使電機(jī)運(yùn)轉(zhuǎn)在較高頻率附近。 3、變頻器安裝地點(diǎn)必需符合標(biāo)準(zhǔn)環(huán)境的要求，否則易引起故障或縮短使用壽命；與驅(qū)動馬達(dá)之間的距離一般不超過50米，若需更長的距離則需降低載波頻率或增加輸出電抗器選件才能正常運(yùn)轉(zhuǎn)。
NEW YASKAWA AC SERVO PACK SGDK-20AEA
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Yaskawa Servopack Model SGDK-3030AEA 200V
From Germany
Yaskawa SGDK-15AEA Servopack "repair fix price"
From Germany
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REULAND 0AEA-B76Z20-01 MAGNETIC BRAKE *USED*
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From United Kingdom
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From Philippines
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Yaskawa SGDK-3030AEA Servopack Service
From Germany
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From Hong Kong
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FUJI Auto Breaker EA32 BB2AEA-020 220VAC 20AMP *NEW*
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Fuji Autobreaker EA32 BB2AEA-020 460VAC 20AMP NEW IN BOX
1991 RCM CANADA $20 SILVER 24K AVIATION MEDAL AEA SILVER DART CASEY BALDWIN
Customs services and international tracking provided
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From Canada
NEW YASKAWA AC SERVO PACK SGDK-75AEA
92391 New In Box, Fuji BB3AEA-020 Circuit Breaker, 20 Amp, 3 Phase EA33
FUJI ELECTRIC EA33 NEW 20A AUTO BREAKER BB3AEA-020 EA33
Fuji Electric EA33 BB3AEA-020 20AMP Auto Breaker AC 220VAC 2.5KA
From United Kingdom
FUJI Auto Breaker EA32 BB2AEA-020 220VAC 20AMP SHIPSAMEDAY #1548L
OEM ENGINE COMPUTER FORD TRUCK BRONCO F2TF-12A650-AEA 5.0L M2U EFI-SD20B 1992
NEW YASKAWA AC SERVO PACK SGDK-3030AEA
Epson Aghi C11C560171 PLQ-20 24 94COL PRL/USB/SER STAMPANTI Aea1
From Italy
Lot of 2: Fuji Electric Breaker EA33 BB3AEA-020 20 Amp, 220 Volt, 2.5kA, 3 POLE
1991 $20 1 of 3 (AEA SILVER DART) mint in original casing and box
From Canada
NELSON# 90869A 2IN ALUMINIZED ACCUSEAL CLAMP (TORCA P/N A20AEA)
Customs services and international tracking provided
OEM ENGINE COMPUTER FORD TRUCK BRONCO F2TF-12A650-AEA 5.0L M2U EFI-SD20B 1993
Customs services and international tracking provided
350-20 WARRANTY OEM 2004 Ford Mustang 3.9 Engine Control Computer Brain ECM ECU
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FORD CAPRI TAUNUS TRANSIT ECJ 41F 51F V 20M,20M XL,Kasten ? CONTI KEILRIEMEN
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From Germany
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From China
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From Germany
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From Germany
Yaskawa Servopack SGDK-15AEA 200V
From Germany
NEW YASKAWA AC SERVO PACK SGDK-20AEA
Yaskawa SGDK-3030AEA Servopack Service
From Germany
Yaskawa Servopack SGDK-15AEA 133704-3-17
From Germany
Yaskawa servo driver SGDK-50AEA good in condition for industry use
From Hong Kong
NEW YASKAWA AC SERVO PACK SGDK-75AEA
Yaskawa servo driver SGDK-75AEA good in condition for industry use
From Hong Kong
NEW YASKAWA AC SERVO PACK SGDK-3030AEA
OEM ENGINE COMPUTER PROGRAMMED 2005 LINCOLN TOWN CAR 5W1A-12A650-AEA CVC0
Customs services and international tracking provided
ENGINE COMPUTER PROGRAMMED WITH KEYS 2005 LINCOLN TOWN CAR 5W1A-12A650-AEA CVC0
Customs services and international tracking provided
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From France
Kramer FC-7402 SDI to Analog Multibat Converter
