GE进口备件IC693ALG390LT

GE进口备件IC693ALG390LT

IC693ALG390LT为什么步进电机的力矩会随转速的升高而下降？

当步进电机转动时，电机各相绕组的电感将形成一个反向电动势；频率越高，反电动势越大，在它的作用下，电机相电流随频率(或速度)的增大而减小，从而导致力矩下降。

空载启动频率

空载启动频率，即步进电机在空载情况下能够正常启动的脉冲频率。如果脉冲频率高于该值，电机不能正常启动，可能发生丢步或堵转。

在有负载的情况下，启动频率应更低。如果要使电机达到高速转动，脉冲频率应该有加速过程，即启动频率较低，然后按加速度升到所希望的高频(电机转速从低速升到高速)。

IC693ALG390LT  

APPLIED MATERIALS (AMAT)FOCUS TRANSDUCER ASSEMBLY,EXCAL

ULTRATECH ASSY, 300MM RETICLE FINGER 01-18-00954

TEL (TOKYO ELECTRON) CT2980-194837-11 MOTOR

APPLIED MATERIALS (AMAT) ACTUATOR KIT P/N 3870-05023

AMAT XGEN REMOTE CH AC PALLET, 300MM 0190-05613

APPLIED MATERIALS (AMAT) PC BASE UNIT-SPEC 0190-10794

AMAT PC BASE UNIT-SPEC 0190-10794 9090-00638ITL

NANOMETRICS PCB, H-AXIS STAGE 9200 9407-015976

TEL (TOKYO ELECTRON) MB3M87-041723-14 VALVE ASSEMBLY

NOVELLUS MC2 SYSTEM CONTROLLER P/N 02-127164-00 - NEW

TEL (TOKYO ELECTRON) CT2985-413486-15 CUP, 12" DEVELOP

APPLIED MATERIALS (AMAT) HDPCVD APPLICATOR 0010-02146

VERTEQ TRANSDUCER, MEG QDR (PVDF-SC) 0220-00-0216-15B

GENERATOR, FREQ DUAL OUTPUT FAB C-REP 1020122.022

VERTEQ GENERATOR, FREQ DUAL OUT FAB C -REP 1020151.001

VAT VALVE, VAT DRM 65044-PH52-0003

LEP STAGE, 8X8 MOTOR FIXED CHUCK 99-S006 99-S006-R

TEL KIT, RPL MAGNETRON YJ1600-NT3 MBM12-012890-22

DNS BACKPLANE 01090-80009 REV A

TEL (TOKYO ELECTRON) MB3M10-313747-11 PEDESTAL, WAFER

VARIAN CHAMBER, PROFILER E17099710

APPLIED MATERIALS (AMAT) ENDURA INDEXER P/N 0010-27175

ACCRETECH JDS UNIPHASE LASER, ASSY S/N FL55 FL10A

NSK CONTROLLER, DUAL AXIS EXC20A310T00-04

APPLIED MATERIALS (AMAT) ASSY FAST COOLED VAPRSR, QII

APPLIED MATERIALS (AMAT) WAFER COMB P/N 0040-22026

LAM RESEARCH OUTER ELECTRODE ASSY P/N 839-020965-006

SIEMENS CONTROLLER, CPU SIMATIC 555-1105

AMAT ROBOT ELECTRONICS MODULE 772032-01(DAS 0190-a0029

TEL BASE, SHOWER 300TIN MB3M10-202605-15

APPLIED MATERIALS (AMAT) FOCUS FEEDTHROUGH 9090-01335

MYKROLIS CONTROLLER, PHOTO 250 PUMP EN ENC0M2CN0

6SE6430-2UD27-5CA0 6SE6430-2UD31-1CA0  6SE6430-2UD31-5CA0  6SE6430-2UD31-8DA0  6SE6430-2UD31-8DB0 6SE6430-2UD32-2DA0  6SE6430-2UD32-2DB0  6SE6430-2UD33-0DA0  6SE6430-2UD33-0DB0  

6SE6430-2UD33-7EA0  6SE6430-2UD33-7EB0 6SE6430-2UD34-5EA0  6SE6430-2UD34-5EB0  6SE6430-2UD35-5FA0 6SE6430-2UD35-5FB0  6SE6430-2UD37-5FA0  6SE6430-2UD37-5FB0  6SE6430-2UD38-8FA0  

6SE6430-2UD38-8FB0  6SE6430-2UD41-1FA0 6SE6430-2UD41-1FB0  6SE6430-2UD41-3FA0  6SE6430-2UD41-3FB0  6SE6430-2UD41-6GA0  6SE6430-2UD41-6GB0  6SE6430-2UD42-0GA0  6SE6430-2UD42-0GB0  

6SE6430-2UD42-5GA0 6SE6430-2UD42-5GB0 6SE6430-2AD27-5CA0  6SE6430-2AD31-1CA0  6SE6430-2AD31-5CA0  6SE6430-2AD31-8DA0  6SE6430-2AD32-2DA0  6SE6430-2AD33-0DA0 6SE6430-2AD33-7EA0 

6SE6430-2AD34-5EA0  6SE6430-2AD35-5FA0  6SE6430-2AD37-5FA0  6SE6430-2AD38-8FA0 

FBM242端子 P0916JY

FBM242电缆P0916FJ

FBM230卡件P0926GU

FBM224端子P0926GH 

FBM224电缆P0926GJ 

FBM224卡件P0926GG 

FBM205卡件P0914XG

FCP270卡件P0917YZ  

FBM241C卡件P0914WM

FBM241C端子P0916AW 

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FCM2F2,P0914YZ

FBM215,P0922VU

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FCM2F2卡件,P0914YZ

P0926MX

AD908AA 一体化端子

P0916DC 标准

P0500SR  FBM07      端子

P0902YU   FBM41C    端子

西门子变频器MM420通用型变频器

6SE6420-2UC11-2AA1  6SE6420-2UC12-5AA1  6SE6420-2UC13-7AA1  6SE6420-2UC15-5AA1  6SE6420-2UC17-5AA1 6SE6420-2UC21-1BA1  6SE6420-2UC21-5BA1 6SE6420-2UC22-2BA1  6SE6420-2UC23-0CA1  

6SE6420-2UC24-0CA1 6SE6420-2UC25-5CA1  6SE6420-2UD13-7AA1  6SE6420-2UD15-5AA1  6SE6420-2UD17-5AA1  6SE6420-2UD21-1AA1 6SE6420-2UD21-5AA1 6SE6420-2UD22-2BA1  6SE6420-2UD23-0BA1  

6SE6420-2UD24-0BA1 6SE6420-2UD25-5CA1 6SE6420-2UD27-5CA1  6SE6420-2UD31-1CA1 6SE6420-2AB11-2AA1 6SE6420-2AB12-5AA1 6SE6420-2AB13-7AA1

6SE6420-2AB15-5AA1 6SE6420-2AB17-5AA1 6SE6420-2AB21-1BA1  6SE6420-2AB21-5BA1  6SE6420-2AB22-2BA1 

6SE6420-2AB23-0CA1  6SE6420-2AC23-0CA1  6SE6420-2AC24-0CA1