YASKAWA SGMM-A3S312伺服驅(qū)動電機現(xiàn)貨

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型號：SGMM-A3S312
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YASKAWA SGMM-A3S312伺服驅(qū)動電機現(xiàn)貨

為了使本章中的描述簡潔易懂盡可能可讀，表格1、2…中的交叉引用習(xí)慣于一般轉(zhuǎn)換器和設(shè)備的主要部分，構(gòu)成直流驅(qū)動器不能獨立滿足EMC要求另外必須由熟練人員安裝和連接
根據(jù)本手冊中規(guī)定的指南。這一限制與EN 61800-3的簡短描述中的“受限分布”相關(guān)，該描述是EMC產(chǎn)品標(biāo)準(zhǔn)動力驅(qū)動系統(tǒng)。接地線中的濾波器（TN或TT網(wǎng)絡(luò)）過濾器僅適用于接地線，例如在公共場所歐洲400V線路。根據(jù)EN 61800-3，過濾器不在絕緣工業(yè)線路中與自己的電源變壓器兼容
由于它們在這種浮動線路（IT網(wǎng)絡(luò)）中的安全風(fēng)險。接地故障檢測
濾波器（帶內(nèi)部放電電阻器）、電纜、轉(zhuǎn)換器并且電動機一起具有相當(dāng)大的對地電容，這會導(dǎo)致電容性接地電流增加。絆倒測量該電流的接地故障檢測器的閾值必須：以適應(yīng)該較高值。高壓試驗由于線路濾波器的電容器，高壓測試具有：用直流電壓來保護(hù)組件。
警告線路濾波器包含電容器，可保持危險電壓在電源電壓斷開后的端子處。內(nèi)部電阻器的放電需要幾秒鐘。因此，之前必須至少等待10秒并進(jìn)行電壓檢查你從設(shè)備開始工作。如果轉(zhuǎn)換器應(yīng)：在公共低壓線路上運行，例如在歐洲，400 V
在相位之間。此類線路具有接地中性導(dǎo)線。ABB提供適用于400V和25伏的三相濾波器
A、 ..600 A和500 V濾波器，用于歐洲以外的440 V線路（見附錄A）。
500V至1000V的線路不公開。它們是工廠內(nèi)部的本地線路，不提供敏感電子產(chǎn)品。因此，如果轉(zhuǎn)換器在500 V下運行，則不需要EMC濾波器以及更多（另見6）。
3個現(xiàn)場單相濾波器供給許多現(xiàn)場電源裝置為單相轉(zhuǎn)換器，高可達(dá)50 A勵磁電流。它們可以由三個輸入中的兩個提供
電樞電源轉(zhuǎn)換器的相位。然后是現(xiàn)場供電裝置
不需要自己的過濾器，如連接示例所示(24).
如果中性導(dǎo)線的相電壓應(yīng)為（230 V在400V線路中），則需要一個單獨的濾波器，如下所示。ABB為250V和6…55A提供此類濾波器（見附錄A）。In order to make the description in this chapter as short and easily
readable as possible, cross references in the form 1 , 2 … are
used.
General Converters and the major part of the devices, which constitute a DC
Drive, cannot fulfil the EMC requirements independently from each
other. They must be installed and connected by skilled personnel
according to the guidelines laid down in this manual. This restriction
is related to the expression “restricted distribution” in the short description of EN 61800-3, which is the EMC product standard for a
Power Drive System.Filter in an earthed line (TN or TT Network)
The filters are suitable for earthed lines only, for example in public
European 400 V lines. According to EN 61800-3, filters are not
compatible in insulated industrial lines with own supply transformers
due to their safety risks in such floating lines (IT networks).
Earth fault detection
Filters (with internal discharging resistors), cables, the converter
and the motor have together a considerable capacitance to ground,
which can cause an increased capacitive earth current. The tripping
threshold of an earth fault detector that measures this current must
be adapted to this higher value.
High voltage test
Because of the capacitors of the line filter the high voltage test has
to be done with dc voltage to protect the components.
Warning
Line filters contain capacitors, which can keep dangerous voltages
at the terminals after the switch off of the mains voltage. The discharge by internal resistors takes some seconds. Therefore a waiting time of at least 10 s and a voltage check are obligatory before
you begin your work at the equipment.EMC filters are necessary to fulfil EN 50081 if a converter shall be
run at a public low voltage line, in Europe for example with 400 V
between the phases. Such lines have an earthed neutral conductor. ABB offers suitable three - phase filters for 400 V and 25
A...600 A and 500 V filters for 440 V lines outside Europe (see Appendix A).
Lines with 500 V to 1000 V are not public. They are local lines inside factories, and they do not supply sensitive electronics. Therefore converters do not need EMC filters if they shall run with 500 V
and more (see also 6).
3 Single-phase filters for field
supply
Many field supply units are single - phase converters for up to 50 A
excitation current. They can be supplied by two of the three input
phases of the armature supply converter. Then a field supply unit
does not need an own filter as shown at the connection example
(24).
If the phase voltage to the neutral conductor shall be taken (230 V
in a 400 V line) then a separate filter is necessary as shown below.
ABB offers such filters for 250 V and 6...55 A (see Appendix A).

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