描述
如果给定的加速时间过短,变频器的输出频率变化远远超过转速(电角频率)的变化,变频器将因流过过电流而跳闸,运转停止,这就叫作失速。为了防止失速使电机继续运转,就要检出电流的大小进行频率控制。当加速电流过大时适当放慢加速速率。减速时也是如此。两者结合起来就是失速功能。
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主营:世界知名品牌的PLC、DCS系统备件模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)
顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数
据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余(TMR)
结构的zui现代化的容错控制器。
⑨Siemens(西门子):Siemens MOORE,Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
Xycom XVME-530 XVME530 Analog Output Module VME Board
Polaroid IDenticard 4-Shot ID Camera and Cutter
Primera Technology Bravo II CD/DVD Disc Publisher New
Acromag 932X AVME932X 12-bit A/D Analog I/O VME
Acromag 9475 AVME9475 Industrial Digital I/O 40 channel
AFC Cable Liquid-Tuff Conduit ?” x 100ft Non-UL
Asahi America Flow Tube V2-M1-A150F100-?E1-X1-LCDT w/ +
Brooks 5085A5A1F1AGAA MAG5000 Magnetic Flowmeter
Canon IPQ-1 Magenta Toner Cartridge Genuine (2)
Compatible HP C4096A Laser Cartridge BRAND NEW!!
Compatible HP CB435A Toner Cartridge BRAND NEW!!
Compatible HP Q6000A Black Laser Cartridge BRAND NEW!!
Compatible HP Q6003A Magenta Laser Cartridge BRAND NEW
CUNO Aqua-Pure AP205 Cold-Water Filters for AP200 (2)
Datel / Murata DVME-601 A/D Co-Processor Board
Duplex Phone Jack VOICE DATA & Wallplate Combo (25)
Elma 32VS-36313-T05J?12-P250C Type 32 Portable 5-Slot
Ericsson SVB13106 VME Telecom Networking Card
Fike Corp. P/N 10-2542 Cheetah Xi Controller Sprinker
Force SYS68K/CPU-33B/?4 VME Board CAT#: 510098
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
Foss Semiconductor Systems Memory I/O Expansion Board
Insite IG Model 3100 Portable Dissolved Oxygen Analyzer
Ironics IV-3272 PIO Parallel Interface DMA High Speed
Ironics VMEbus 5-Slot Chassis Enclosure VME
VMIC VMIVME-1150 64-Bit Optical Couple Digital Input Bd
VMIC VMIVME-3123 16-BIT High Throughput Analog Input Bd
VMIC VMIVME-7592 Single-Slot Pentium / AMD-K6 Processor
Walchem WCT310-1N2 Cooling Tower Controller WCT Series
Xycom XVME-240 XVME240 Digital Input/ Output Module VME
Xycom XVME-530 XVME530 Analog Output Module VME Board
Polaroid IDenticard 4-Shot ID Camera and Cutter
Primera Technology Bravo II CD/DVD Disc Publisher New
Acromag 932X AVME932X 12-bit A/D Analog I/O VME
Acromag 9475 AVME9475 Industrial Digital I/O 40 channel
AFC Cable Liquid-Tuff Conduit ?” x 100ft Non-UL
Asahi America Flow Tube V2-M1-A150F100-?E1-X1-LCDT w/ +
Brooks 5085A5A1F1AGAA MAG5000 Magnetic Flowmeter
Canon IPQ-1 Magenta Toner Cartridge Genuine (2)
Compatible HP C4096A Laser Cartridge BRAND NEW!!
Compatible HP CB435A Toner Cartridge BRAND NEW!!
Compatible HP Q6000A Black Laser Cartridge BRAND NEW!!
Compatible HP Q6003A Magenta Laser Cartridge BRAND NEW
CUNO Aqua-Pure AP205 Cold-Water Filters for AP200 (2)
Datel / Murata DVME-601 A/D Co-Processor Board
Duplex Phone Jack VOICE DATA & Wallplate Combo (25)
Elma 32VS-36313-T05J?12-P250C Type 32 Portable 5-Slot