89AR30 日就月将

发布时间:2019-11-12

89AR30

89AR30

89AR30


2、参数设置类故障的处理

    一旦发生了参数设置类故障后,变频器都不能正常运行,一般可根据说明书进行修改参数。如果以上不行,*是能够把所有参数恢复出厂值,然后按上述步骤重新设置,对于每一个公司的变频器其参数恢复方式也不相同。

89AR30 日就月将


    二、过压类故障
    变频器的过电压集中表现在直流母线的支流电压上。正常情况下,变频器直流电为三相全波整流后的平均值。若以380V线电压计算,则平均直流电压Ud=1.35U线=513V。在过电压发生时,直流母线的储能电容将被充电,当电压上至760V左右时,变频器过电压保护动作。因此,变频器来说,都有一个正常的工作电压范围,当电压过这个范围时很可能损坏变频器,常见的过电压有两类。
    1、输入交流电源过压
    这种情况是指输入电压过正常范围,一般发生在节假日负载较轻,电压升高或降低而线路出现故障,此时*断开电源,检查、处理。

A73251 Kodak Image Station 4000MM Pro Imaging System

G70686 Multiline Technology Optiline Post X-Ray Machine

C59242 Electroglas 3001X 8" Wafer Prober Probe Station

C74218 PE Sciex API QStar Pulsar 1 Mass Spectrometer

A51532 Asymtek Millennium Series Dispensing System, 600

C56237 Zevatech CT-3000 Pick and Place Machine

G54212 Asymtek A-618C Millennium Dispensing System

G66395 Hitachi S-2300 Scanning Electron Microscope

G54295 Asymtek Dispensing System

G75521 TA Inst. TGA2050 Thermogravimetr?ic Analyzer

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AN43004 Alessi 6" Prober XYZ w/ Microscope, Extras

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C69531 Rudolph AutoEL III 2B 4A Automatic Ellipsometer

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C71085 Gaertner Scientific Corp. L115 S Ellipsometer

C70347 Solid State Measurements CV Test Analysis System

C69865 K&S 4124 Gold Ball Wire Bonder w/ LWD Microscope

C69864 K&S 4124 Gold Ball Wire Bonder w/Negative E.F.O.

C69692 K&S 4124 Thermosonic Gold Ball Wire Bonder

C28990 Orthodyne 20R Wire Bonder w/Nikon SMZ-1 Scope

C62291 Rucker & Kolls R&K 691 Automatic Wafer Prober

CT71086 Karl Suss Wafer Prober Probe Station w/Wild M3Z

K74410 GE LUNAR Prodigy 8743 Bone Densitometer Density

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