變頻器是由電力電子器件（ICBT）及集成電路CPU等器件組成的，凡是電子器件都有個致命的弱點，即怕超溫，怕過電流，怕過電壓，怕超過允許的Di／Dt，Du／Dt等，當(dāng)使用不當(dāng)、參數(shù)調(diào)試不當(dāng)及外來干擾時，在靜態(tài)（穩(wěn)速工作時）或動態(tài)（起動或制動）工作過程中都有可能造成器件損壞，以致不能正常工作，造成一定的經(jīng)濟損失，影響生產(chǎn)的正常進行。所以，一方面現(xiàn)在的變頻器具有較*的各種保護電路，盡可能地反映運行時出現(xiàn)的各種不正常的現(xiàn)象，并能及時保護，確保器件的安全，把損失減小到zui低或不發(fā)生，使大家可以放心地使用；另一方面也不能*依賴變頻器的各種保護，不精心調(diào)試，超規(guī)范地運行，這樣做仍是有可能造成事故的，所以要求使用變頻器時應(yīng)“精心調(diào)試，正確使用”，只有這樣才可不發(fā)生意外的損失，造成不良后果?，F(xiàn)在變頻器不但保護齊全，而且故障出現(xiàn)后有LED代碼顯示，或LCD中文提示，還有存儲以備查閱等功能。故障代碼顯示各公司產(chǎn)品不*一 樣，但類同的、基本的保護功能是不能少的。變頻器報警顯示內(nèi)容舉例見表。
表變頻器報警顯示內(nèi)容舉例

續(xù)表

續(xù)表

AC Power Lightning and Surge Protector/Arre?stor Device #LPC2020-3U-6 -
AC ACTIVATOR 2S DEVICE PROGRAMMER NO AC PLUG CHEAP
Ac Silicon Sculptor Device Programmer
AD208BY  10 IN AD208B ANALOG DEVICES IC AMP ISOL 4KHZ PREC 2MA 38SIP
AD22100AT ANALOG DEVICES 54 AD22100 AD ANALOG DEVICE
AD284J AD284 Analog Devices Instrumentatio?n Amplifier - Self-Contained Isolation
AD522BD ANALOG DEVICES  PARTS 14 PIN GOLD LEADS RARE AND 
AD572AD AD572 Analog Devices 12-BIT SUCCESSIVE APPROXIMATION INTEGRATED CIRCUIT 
AD8330ARQ ANALOG DEVICE 25
AD9005AKM  AD9005 ANALOG DEVICES FACTORY BRAND  IC
AD9834BRU ANALOG DEVICE 25
Add Programming Module  RJ-12 to 6PIN  RJ-12 to RJ-12
ADG408BN ANALOG DEVICES 25 WITH FACTORY COFC
ADM3311EARS ADM3311 SSOP28 SSOP-28 ANALOG DEVICE 
ADSP2101TG50 Analog Devices
Advin Systems PILOT-U28 Universal Device Programmer
ADXL50JH  66 ANALOG DEVICES 9613 DC ORIGINAL FACTORY BOX  PRODUCT
AIR REGULATOR 1/4NPT 300PSI 0.5-30PSI OUT FAIRCHILD
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AIR REGULATOR 1/4NPT 300PSI 0.5-30PSI OUT FAIRCHILD
AIR REGULATOR 1/4NPT 300PSI 0-60PSI OUT FAIRCHILD
ALLPRO SOFTWARE DRIVEN DEVICE PROGRAMMER LOGICAL DEVICE
ALTERA # EPM7064AETC100 -10 IC MAX CPLD :30
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Altera Cyclone II FPGA Development Starter Kit - 
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Altera EP3C10F256C7N Cyclone III FPGA 10K 256FBGA 13
Altera EP3C10F256I7N Cyclone III FPGA 10K 256FBGA 50
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altera ep3se260f1152c?3 IC EP3SE260F1152C?3 FBGA1152 Stratix-III SE260 FP
altera EP3SE260F1517C?3 IC EP3SE260F1517C?3 FBGA1517 Stratix-III SE260 FP
altera EP3SL200F1517C?3 IC B5F55285.500?F1517C3 FBGA1517 Stratix-III SL200 FP
altera EP3SL340F1517C?3 IC EP3SL340F1517C?2 FBGA1517 Stratix-III SE340 FP
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Altera EPF10K100EQC24?0-3 Flex 10KE PLD IC
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Altera EPM7192EQC160-?20 
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ALTERA STRATIX EP1S25F672C6 LADK9E0413A ~ 33 TOTAL
ALTERA STRATIX GX II EP2SGX30DF780C?3N FBGA SPD3 
Altera Stratix II High Speed Development Board
Altera USB Blaster Download Cable PL-USB-BLTR-RC?N-OC FPGA UFM EPC APEX ACEX FLEX
AM27C020-255JC  240 AM27C020 AM27C020255JC ADVANCED MICRO DEVICES AMD
AMADA DEGA 304040 FUJITSU FANUC A02B-0027-C116 OPTION UNIT A02B0027C116
Amplificateur de débit
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ANALOG DEVICES 233K FREQUENCY CONVERTER 7-PIN 
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ANALOG DEVICES 460K 8-PIN FREQUENCY CONVERTER  2 
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ANALOG DEVICES 824AR FET-Input Op Amp 56 
ANALOG DEVICES 940 CONVERTER MODULE 
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Analog Devices ADC 14I Dual Slope Integrating Analog to Digital Converter ADC14I
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Analog Devices ADM3307EARU-RE?EL7 RS-232 Transceiver IC's . 895
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AOU24RLQ
Applied Vision Frame Grabber 13518 Board Opteon NxN Altera Cyclone EP1C12F256C6N
AT93C56-10PU-2?.7 DIP-8 AT93C56 93C56 MICROCHIP /Free Registered Mail
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BK Precision 844USB Device Programmer USB PC Interface
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BP Microsystems BP-1400 EPROM Universal Device Programmer w/5 Attachments
BP Microsystems BP-2100 Concurrent Programming System 6-Device Site
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Brand  XILINX Virtex XCV1000E-6FG68?0C 12Lot 
BRIDGEPORT 2ND FUJITSU FANUC A860-0300-T001 ENCODER A8600300T001 ENCODER ONLY
BRIDGEPORT 2ND FUJITSU FANUC A860-0300-T001 ENCODER A8600300T001 ENCODER ONLY B
BRIDGEPORT 2ND FUJITSU FANUC A860-0300-T001 ENCODER A8600300T001 ENCODER ONLY C
BSM100GB120DLC EUPEC INFINEON MODULE
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BSM10GD60DN2 EUPEC INFINEON MODULE
BSM150GB120D EUPEC INFINEON MODULE
BSM150GB120DN2 EUPEC INFINEON
BSM150GB170DLC EUPEC INFINEON
BSM150GB170DN2 EUPEC INFINEON
BSM15GD100D EUPEC INFINEON SIEMENS POWER MODULE
BSM200GA170DN2?E3256 BSM200GA170DN2?_E3256 EUPEC INFINEON
BSM25GD120DE32?24 BSM25GD120D_E3?224 EUPEC INFINEON
BSM300GA120DN1?1 EUPEC INFINEON
BSM300GA120DN2?S EUPEC/ INFINEON MODULE
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BSM400GA120DLC EUPEC INFINEON MODULE
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BSM50GP60G EUPEC INFINEON MODULE
BSM75GAL120DN2 EUPEC INFINEON MODULE
BSM75GAR120DN2 EUPEC INFINEON MODULE
BSM75GB120DN1 EUPEC INFINEON MODULE
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Buy It Now or Best Offer
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C84730 Fairchild T-5100B-99 Electric to Pneumatic Transducer 1-9VDC 3-15PSIG
Cash Drawer
Cash Drawer
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Celoxica RC300 V2.0 1000-1090 FPGA evaluation Prototyping DK Xilinx Virtex II
CLEI: SNC1GP02AA
CLEI: SNPQADE5AD
CLEI: SNPQADH5AB
CLEI: SNPQBSW5AA
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CPU F68A00P Fairchild 40-Pin Rare Vintage 1979 Last One
Cyclone NIOS II Altera FPGA Development Board EP2C8T144  LCD1602  USB BLASTER
D3720ACY Manu:ALTERA Encapsulation:?QFP-2402700 PIXELS x 3 COLOR CCD LINEAR
Dallas Maxim DS1245Y-100 1M Nonvolatile Static RAM IC 128K X 8   40 
DATA I/Q 3980xpi device programming system 
DD104N12K EUPEC INFINEON MODULE
DD104N16K EUPEC INFINEON MODULE
DD171N12K EUPEC INFINEON MODULE
Development Board for Cyclone II EP2C5 ALTERA FPGA
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DIP IC H11A1 Optoisolator Photocouple FAIRCHILD
DM7407N 7407N FAIRCHILD SEMICONDUCTOR 7407 SN7407N DM7407N DIP NSC FSC  PARTS
DM74ALS244A Fairchild Octal 3-STATE Bus Driver 250
DM74AS373WM FAIRCHILD IC OCTAL T/R 190874AS373
DS1302 DIP-8 Dallas Maxim 3-Wire Real-Time Clock
DUS505  1 0008 DC IPD INTERNATIONAL POWER DEVICES DC/DC CONVERTER  RARE
DZ600N16K EUPEC INFINEON MODULE
E16B-3003-R280 E16B 3003 R280 Fujitsu 9600 B8NCCA BL Circuit Card  Working
E18B-3001-R812 E18B 3001 R812 E320 Fujitsu 9600 B16SLJ Circuit Card  Working
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Eaton PTE160-3Y101 Surge Suppressor Device Innovative Technology IT  in Box
EATON SEMICONDUCTOR DEVICE PART # 192R1 NSN 5961-00-386-90?79
EE-TOOLS CHIPMAX 2 Econo Device programmer 48 pin ZIF socket for PC USB int.
EE-TOOLS TOPMAXII Universal device programmer and IC Tester
ELECTRO-CHEMIC?AL DEVICES R30 RECEIVER /CONTROLLER REFUR
EP1280F1020C6 FPGA STRATIX 79040 CELLS 1.5V 1020-FC-FBGA ALTERA NEEDS REBALLING
EP1810JC-45 EP1810 ALTERA UV-Erasable Programmable Logic Device EPLD
EP1810JC-45 EP1810 ALTERA UV-Erasable Programmable Logic Device EPLD
EP20K200RC240-?3 EP20K200 Altera Programmable Logic Device Family
EP20K200RC240-?3 EP20K200 Altera Programmable Logic Device Family
EP2A15F672C7 Manu:ALTERA Encapsulation:?BGA-672
EP2C8Q208C8N Development Board kit FPGA/CPLD Altera CycloneNIOS II  2.4 " LCD
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EP2S60F672C4 [Altera] IC STRATIX II FPGA 60K 672-FBGA
EP320PC EP320 Altera One-Time-Progr?ammable Logic Device-Prgambl Security Bit
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EP3C16 ALTERA Cyclone III FPGA Development Evaluation Board  12 Accessory Kits
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EPC2TI32 ALTERA  250 SEALED PKG ALTERA EPC2TI32 FACT SEALED BAG 
EPF10K100EBC35?6-2 ALTERA  EPF10K100EBC-3?56-2  IC 
EPF10K30RC240-?3 AlteraEPF10K30?RC240-3 ALTERA 
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EPM5032DC-15 ALTERA  EPM5032 - IC 
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EPM7096LI68-15  18 ALTERA EPM7096LI6815 EPM7096 RARE PARTS  PRODUCT ALTERA
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EUPEC INFINEON T1330N20TOF VT THYRISTOR T1330N20TOFVT
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