7DI435.7晋中市
低压通用变频输出电压为380～650V，输出功率为0.75～400kW，工作频率为0～400Hz，它的主电路都采用交—直—交电路。其控制方式经历了以下四代。
正弦脉宽调制(SPWM)控制方式
其特点是控制电路结构简单、成本较低，机械特性硬度也较好，能够满足一般传动的平滑调速要求，已在产业的各个领域得到广泛应用。但是，这种控制方式在低频时，由于输出电压较低，转矩受定子电阻压降的影响比较显著，使输出大转矩减小。另外，其机械特性终究没有直流电动机硬，动态转矩能力和静态调速性能都还不尽如人意，且系统性能不高、控制曲线会随负载的变化而变化，转矩响应慢、电机转矩利用率不高，低速时因定子电阻和逆变器死区效应的存在而性能下降，稳定性变差等。因此人们又研究出矢量控制变频调速。
电压空间矢量(SVPWM)控制方式
它是以三相波形整体生成效果为前提，以逼近电机气隙的理想圆形旋转磁场轨迹为目的，一次生成三相调制波形，以内切多边形逼近圆的方式进行控制的。经实践使用后又有所改进，即引入频率补偿，能消除速度控制的误差；通过反馈估算磁链幅值，消除低速时定子电阻的影响；将输出电压、电流闭环，以动态的精度和稳定度。但控制电路环节较多，且没有引入转矩的调节，所以系统性能没有得到根本改善
1370-01025 AMAT RECEIVER LED ASSY (PACK OF 10)
1370-01608 AMAT SW PREE DIFF 2-12MM H2O SPDT MANOSTAR
1370-90071 AMAT TRANSISTOR PNP BC 327
1380-01002 AMAT TUBE RF GENERATOR 2K & 3k HENRY
1380-01003 AMAT Magnetron + C745
1380-01003 AMAT Magnetron + C745
1381-645026-14 AMAT PCB
13-8800-252 AMAT GEARROLLER ASSY
1390-00370 AMAT CABLE SHLD 24AWG 4COND 300V 80C PVC
1390-01035 AMAT WIRE STRD 24 GA RED TEF
1390-01063 AMAT WIRE
1390-01078 AMAT Ground Cable
1390-01078 AMAT GROUNDING STRAP 7AWG 3/4W BRAID
1390-01221 AMAT WIRE 14 AWG GY/Y TR
1390-01226 AMAT Cable
1390-01297 AMAT CABLE ASSY
1390-01320 AMAT Wire
1390-01370 AMAT WIRE STRD 24GA
1390-01466 AMAT WIRE STRD 16 AWG 4.5'
1390-01503 AMAT CABLE STEEL 15" LONG
1390-01554 AMAT WIRE BRAID 7AWG 1"FLAT TINNED
1390-01653 AMAT
1390-02343 AMAT CABLE TC K-TYPE RETRACTABLE 5FT M/M SMP
1390-02479 AMAT CABLE SNSR EXT 26"L (SPARE FOR 3920-0154
1390-02666 AMAT CABLE SHLD 24AWG 25COND 7X32 300V 80C PV
1390-1078 AMAT
1390-90312 AMAT ALUMINIUM BRAID 6.5 WIDE
13BS-09-X121 AMAT EJECTOR NZHI13BS-0
1400-00036 AMAT SNSR MICROPHOTO SLOT K TYPE NPN-OUTPUT W
1400-00037 AMAT SNSR THRU BEAM 600MM NPN LIGHT OPERATE O
1400-00077 AMAT CELL LEVEL SENSOR CONDUCTIVITY PROBE FOR
1400-00086 AMAT LIGHT CURTAIN MICRO SCREEN CONTROLLER W/
1400-00127 AMAT SINGLE CHANNEL ELECTRONIC CONTROL MODULE
1400-00129 AMAT SNSR PROX MODULAR 1-CHANNEL NC/NO 10-30V
1400-00132 AMAT SNSR OPT LEVEL N-CHANNEL 12-36VDC 8' CBL
1400-00135 AMAT SNSR PHOTOELECTRIC 5-24VDC NPN OPEN-COLL
1400-00165 AMAT SNSR PHOTOELECTRIC THRU-BEAM 15M-RANGE N
1400-00172 AMAT link WAFER GRIPPER SENSOR 24V
1400-00177 AMAT LIGHT CURTAIN EMITTER 24" PIGTAIL QD
1400-00211 AMAT SNSR MICRO-PHOTO L-TYPE U-SHAPED 5MM RAN
1400-00251 AMAT SENSOR FBR-OPTIC THRU-BEAM TEFLON COAT
1400-00260 AMAT SNSR INDUCTIVE 10-30 VDC RECT 3WIRE 26W
1400-00286 AMAT SNSR INDUCTIVE PROX 12MM RNG NPN-SINKING
1400-00356 AMAT SNSR CYL POSITION PNP INTEGRA
1400-00419 AMAT SNSR DIST RANGE 20MM MIDRANGE 40MM
1400-00424 AMAT SNSR TEMP IR 3.43U 300-1300DEGC 16-40VD
1400-00451 AMAT SENSOR ULTRASONIC ANA OUT 18MM 0-10VDC
1400-01011 AMAT SENSOR REFLECTIVE
1400-01013 AMAT SNSR INFRARED DET SHORT BLK 3/8 DIA THD
1400-01023 AMAT SENSOR DIGITAL DISPLAY 12 TO 24VDC
1400-01044 AMAT SNRS OPTICAL
1400-01046 AMAT SMOKE/WATER DETECTOR
1400-01049 AMAT Sensor
1400-01049 AMAT SNSR FBR-OPT VSBL-RED 650NM 10-30VDC 15
1400-01054 AMAT W REED RLY 24VDC 5-22MA 1.2MS 30G
1400-01072 AMAT SNSR LIMIT WITH RESISTER
1400-01074 AMAT Sensor
1400-01074 AMAT SNSR RECEIVER INFRARED 10-30VDC LESS
1400-01081 AMAT Sensor
1400-01081 AMAT SNSR PHOTOELECTRIC CONVERGENT MODE
1400-01092 AMAT SNSR CNTRL 2-CHAN ELCT- TYP 120VAC 50/60
1400-01097 AMAT WPSSENSORHEAD
1400-01097 AMAT WPSSENSORHEAD
1400-01108 AMAT Tool Gap
1400-01109 AMAT Calibration Head
1400-01135 AMAT SNSR AMPL OPT 12-24VDC NPN-OC .5MS MULT
1400-01150 AMAT SENSOR
1400-01156 AMAT ROBOT SHOULDER HOME
1400-01162 AMAT TSTR UV/IR SENSOR 180-240NM OUT ENGY 180DEG RADN
1400-01168 AMAT SNSR INDUCTIVE PROXIMITY
1400-01169 AMAT SNSR OPTICAL LEVEL SWITCH 10-28VDC DRY-O
1400-01186 AMAT SNSR FBR-OPTIC THRU-BEAM M14 SCREW
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1400-01197 AMAT Sensor
1400-01237 AMAT SNSR ASSY AIR CYL POS (SPARE FOR 3920-01
1400-01237 AMAT ASSYSENSORSAIRCYLPOS
1400-01241 AMAT SNSR HALL EFFECT PNP 9/16 (SPARE FOR 392
1400-01241 AMAT SENSORHALLEFFCTPNP9/16
1400-01241 AMAT SENSORHALLEFFCTPNP9/16
1400-01242 AMAT SNSR HALL EFFECT PNP 1-1/16 (SPARE FOR 3
1400-01242 AMAT SNSRHALLEFFCTPNP1-1/16
