變頻器在停止一段時間未使用后，再次啟動時，很多用戶反應(yīng)變頻器一上電會出現(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)時充分考慮主電路對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。
Okuma E4809-045-140 or 1006-1105 VACII - Drive Unit Board "Repair fix price2
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Siemens Sirius Leistungsschalter 3WL1225-4EB32-Z 2500A GEB
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Automatic Transmission Filter Set for BMW 3 E36, 5 E34, Z3 E36 - 24111218899
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BMW Z3,E36,E39,E38,E53,Z4 FUEL EVAPORATOR EXPANSION VALVE @ Beemr Bits EB19
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BMW REAR BRAKE CALIPER BOLTS SET e36,e46,z3,z4,e38,e34 etc @ Beemer Bits EB12
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BMW AUDI E30 E36 Z3 E46 E85 E86 Z4 Rear Trailing Arm Wheel Bearing (SOLD AS 1)
Lichtmaschine ABS Ahlmann Atlas Bobcat Demag Dynapac Eder Gehl Holder Hydrema
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BMW E46,E36,Z3,Z4 etc 320D,318D COMPLETE CLUTCH BOLT SET KIT @ Beemer Bits EB15
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Lichtmaschine Liebherr Lissmac O&K Paus Schaeff Svedala Demag Terex Terexlift
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TECNOCAR ?LFILTER OP211 BMW E36 E46 E34 Z3 Z4
TECNOCAR-FILTER DER FILTRAUTO-GRUPPE - ERSTAUSRüSTER
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Lichtmaschine Thomas Volvo Weidemann Weimar Zetbmeyer 14V 60A
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Siemens Sirius Leistungsschalter 3WL1225-4EB32-Z 2500A GEB
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1 NIB SIEMENS 3WL3216-4AS35-1AA0 AIR CIRCUIT BREAKER WLS2A316QDGCXLCCN 1600 AMP
3/8" x 35' WRECKER TOW TRUCK WINCH CABLE W/ SWIVEL HOOK
3/8" x 35' WRECKER TOW TRUCK WINCH CABLE - fiber core
Z14-35 1960 Childrens Hosp EB 3 1/2 yo shot himself Oakland Orig 2 1/4" Neg Film
NOS NIB new vacuum tubes type 19 35/51 38 56 Radiotron UX-281 485 25Z5 485 5U4G
Pairs & singles of Loktal Tubes - FM-1000, 50X6, 35Z3, 35Y4, 35A5, 14B6, 7X7 etc
Lichtmaschine ABS Ahlmann Atlas Bobcat Demag Dynapac Eder Gehl Holder Hydrema
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Generator KHD Deutz-Fahr Volvo L30B L35B Manitou As90 A13N255 F3L1011 BF4L1011FT
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VOLVO C30 S40 2 S80 2 V50 V70 3 MS AS MW ? HELLA TEMPERATUR SENSOR
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Lichtmaschine Thomas Volvo Weidemann Weimar Zetbmeyer 14V 60A
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VOLVO C30 S40 2 S80 2 V50 V70 3 MS AS MW ? HELLA TEMPERATUR SENSOR
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2EB4B2 Gigabyte GA-Z87X-OC FORCE -LGA1150 Inb Z87 Chipset DDR3 32GB ATX Mother
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Tung Sol Tung-Sol NOS 12BQ6GT, 7h7, 5v4g, 25bq6ga, 6ac7, 6k6gt, 35z3, 6sc7,3be6
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1 x Spurstangenkopf MOOG MD-ES-0621
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Lichtmaschine Thomas Volvo Weidemann Weimar Zetbmeyer 14V 60A
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National Instruments NI PCI-7334 Card
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100% test PCI-7334 (by DHL or EMS)
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National Instruments NI PCI-7334 186307C-06 Stepper/Servo Motion Controller Card
MSI MS-7334 Ver 1.0 MS 7334 MS7334 Sockel 775 PCI-X IDE SATA +Zub. NEU
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Microstar PCI Riser Card MS-6351
MSI MS-6351 MS6351 MS 6351 B6351 PCI Riser Card 2xPCI
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Microstar PCI Riser Card MS-6351
MSI MS-6351 MS6351 MS 6351 B6351 PCI Riser Card Risercard 2x PCI NEU
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MSI MS-6351 Ver.1 MS6351 MS 6351 Sockel 370 VGA USB SD RAM PCI
Matrox Computer Video I/O Board Y7174-02 XMIO/12/8000L M086440 p/n 63039621311
Matrox Corona2 7030_02 REV A
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Matrox Corona2 7030_02 REV A 63039620193 W/DB G4-MOD/PLDVI Frame Grabber
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Matrox 16029-02 LFH-60 to Dual DVI Dongle 1ft Y-Splitter Adapter Cable
Matrox RTX100 Board Video Editing PCI Card ver 200 63039621222 y7098-02 D
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Matrox Solios XA Y7190-02 REV.A SOL6M1A free ship
From Korea, South
Lot of 5*Matrox DMS-60 to Dual DVI Y Splitter Cables 16029-02
Lot of 7 Matrox 16029-02 LFH-60 to Dual DVI Dongle 1ft Y-Splitter Adapter Cables
Matrox Odyssey PCI-X Backplane Back Plane 2 OLPIC* OLPIC Y7172-02
Lot of 10*Matrox DMS-60 to Dual DVI Y Splitter Cables 16029-02
Lot of 4 Matrox Y7158-02 REV A OG12ML0DDVI0 P/N 63039621296
SAJF// ALPHA SP075S-MF1-10 GEAR REDUCTION DRIVE USED
From Korea, South
Alpha Gear Head, SP075-MF1-10-131-000 Used
Alpha SP 075S-MF1-10 - 1E1-2S / 10 :1 Gearhead Gear Reducer
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SAJF// ALPHA SP075-MF1-10-131-000 USED
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ALPHA GEAR SP 075S-MF1-10 24MM 22MM 10:1 PLANETARY GEARHEAD GEAR REDUCER B385531
Alpha SP075S-MF1-10-1E1-2S 1-Stage Gearhead 10:1 Ratio Keyed Shaft Used
SAJF// APEX AB090-S1-P1 10:1 GEAR REDUCTION DRIVE USED
From Korea, South
Yaskawa SGML-08AF14 SGML08AF14 AC Servo Motor
Yaskawa CPCR-SWA6B CPCRSWA6B Servo Driver
Yaskawa SGM-01A312 SGM01A312 AC Servo Motor
Yaskawa SGLGW-60A140CHD SGLGW60A140CHD Servo Linear
Yaskawa CACR-02-MM2A CACR02MM2A Servopack
Yaskawa UGRMEM-02SSW21 UGRMEM02SSW21 Motor
Yaskawa Electric DR2-04AC DR204AC Servopack
Yaskawa SGDA-02AS SGDA02AS SGDA 02AS 1 Phase 4.0 amps Servopack
