變頻器在停止一段時(shí)間未使用后，再次啟動(dòng)時(shí)，很多用戶反應(yīng)變頻器一上電會(huì)出現(xiàn)變頻器燒主板或者變頻器爆模塊的情況。變頻器維修中這種情況發(fā)生的可能原因： 1、電機(jī)因慣性運(yùn)轉(zhuǎn)產(chǎn)生回電，變頻器主輸出電路與控制線路未及時(shí)或者完全隔絕開來，導(dǎo)致變頻器主板或者模塊燒壞，這是在成套電氣設(shè)備設(shè)計(jì)之初未能完全考慮變頻器的工作環(huán)境導(dǎo)致的結(jié)果。 解決辦法是：電機(jī)停止時(shí)斷開變頻器后的接觸器，如果有可能增加電機(jī)剎車抱閘機(jī)構(gòu)。從而解決電機(jī)慣性運(yùn)轉(zhuǎn)產(chǎn)生的方向空載電壓。 2、強(qiáng)電的干擾導(dǎo)致電路板和模塊燒壞，具體原因是主電路與控制電路相隔較近，因?yàn)殡娏鞯闹C同作用，主電路中一旦有瞬間的高電壓出現(xiàn)，會(huì)使控制電路電壓或者電流過載，從而燒壞電氣元件。 解決辦法是：變頻器在設(shè)計(jì)時(shí)充分考慮主電路對(duì)控制電路的干擾作用，盡量避免或降至，輸入主電路采用保護(hù)措施，避免大電流對(duì)變頻器的沖擊。 3、陰雨天氣被雷擊也有可能導(dǎo)致變頻器損壞，原因也是過高的輸入電壓導(dǎo)致的。
Varian Servo Motor Drive CM-MO2620-BCYAN PN: 19002300
From Israel
Melec D-2801 PM Driver
From United States
Melec H-541 Stepping Motor Driver Card Board w/ STK672-050 IC, H541, SP1569
From United States
Melec D-450 PM Driver
Customs services and international tracking provided
From United States
Melec PM Driver MD-5501 Stepper Motor Drive Driver - Great Shape!
From United States
Melec KP1198-1 C-863 211661 Servo Controller
From Thailand
Melec D-551A PM Driver,110Vac,Used, Japan
From Singapore
Melec C-871 KP1261 Board W/Cable
From Korea, South
Melec D-5500
Customs services and international tracking provided
From United States
MELEC D-5410 DRIVER
From Singapore
Melec PM Driver D-600
From United States
SANYO DENKI MELEC 5M69A STEP-SYN STEPPING MOTOR
From Korea, South
Melec C-780SA Controller
From Korea, South
Melec C-780SA Controller
From Korea, South
Cnc Japan 5 Phase Step Motor Drive AC 110v 2.8A for NEMA34 Stepper Driver
From Hong Kong
MELEC C-560S
From Korea, South
MELEC PM DRIVER D-240
From Korea, South
MELEC / ADVANCED DRIVER / AD-2701
From Korea, South
Melec KP1229-2 Circuit Board C-822 Hitachi S-9380 working
From United States
SANYO DENKI STEPPING MOTOR MELEC 5M69A LOT OF 2
From Korea, South
MELEC C-551SA-C01 USPP C551SAC01
FREE 2 YR WARRANTY FREE US SHIPPING ON ORDERS OVER $100
From United States
MELEC C-551S CONTROLLER
From Korea, South
MELEC D-551A PM DRIVER
From Singapore
MELEC C-865 V1 BOARD KP1256,CABLE WORKING
From Korea, South
MELEC PM DRIVER D-551A
From Korea, South
Melec Advanced driver AD-2601 (free shipping)
From Korea, South
MELEC CD-2500S IPM DRIVER
From Malaysia
SASH// MELEC MD-5400 DRIVER USED
From Korea, South
Leadshine motor 2 phase 0.065NM 39HS02 + M415B stepper drive 18-40DCV 0.21-1.5A
From China
MELEC C-781S SERVO SYSTEM CONTROLLER , USED
From Korea, South
Melec C-864 KP1218-2 KP1218-3 Stepping Servo Motor Controller isa card
From China
MELEC D-5500 DRIVER
From Malaysia
Melec C-781S Controller
From United States
SASH// MELEC MD-5501 DRIVER USED
From Korea, South
Melec PM Driver MD-5501
Customs services and international tracking provided
From United States
Leadshine motor 2 phase 0.07NM 35HS01 + M415B stepper drive 18-40DCV 0.21-1.5A
From China
SADH// MELEC AD-5410 DRIVER USED
From Korea, South
Rockwell Samsung CSD3-01BX2 & CSMT-01BQ1ANT3 - AC Servo Drive & Motor 100W
From Korea, South
Melec C-11S Pulse Motor Control
From United States
Delta 2000W 2KW AB Servo System (Drive + Motor) ASD-A2023-AB + ECMA-E31820PS
From China
Delta 2000W 2KW AB Servo System (Drive + Motor) ASD-A2023-AB + ECMA-E31320PS
From China
Delta 2000W 2KW AB Servo System (Drive + Motor) ASD-A2023-AB + ECMA-C31020PS
From China
Motion Pro Revolver Variable Rate Throttle Kit 01-2620
Brand New from Motorcycle Market, Fast FREE Shipping
From United States
Melec KP1175-2 DB-5410 DRIVER
From United States
Delta 2000W 2KW AB Servo System (Drive + Motor) ASD-A2023-AB + ECMA-E31320RS
From China
MELEC C-823 BOARD KP1229-2
From Korea, South
Melec SP1018-7 SP10187 Circuit Board EAUA-087703 #577
Customs services and international tracking provided
From United States
MELEC C-811A BOARD
From Korea, South
1-72 GH2 HSS 2 FLUTE PLUG TAP ***Made in USA***
From United States
Melec C-820A Stepping and Servo Motor Controller ASM Epsilon 3000 Used
From United States
Yaskawa SGDM-01ADA & SGMAH-01AAA21 - AC Servo Drive& Servo Motor 100W
From Korea, South
(New) Melec C-820A Board
From United States
SIEMENS SIMOREG DRIVE D500/35, 6RA2620-6GV57-1A-Z
Yaskawa SGDS-02A01A & SGMAS-01ACA2C - AC Servo Drive 200W & Servo Motor 100W
From Korea, South
Yaskawa Servo Drive & Motor SGDH-01AE SGMAH-01AAA2C 100W
From Korea, South
