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多数变频器厂家内部的印制板、金属结构件均未进行防潮湿霉变的特殊处理，如果变频器长期处于这种状态，金属结构件容易产生锈蚀，对于导电铜排在高温运行情况下，更加剧了锈蚀的过程。对于微机控制板和驱动电源板上的细小铜质导线，由于锈蚀将造成损坏，因此，对于应用于潮湿和和含有腐蚀性气体的场合，必须对于使用变频器的内部设计有基本要求，例如印刷电路板必须采用三防漆喷涂处理，对于结构件必须采用镀镍铬等处理工艺。除此之外，还需要采取其它积极、有效、合理的防潮湿、防腐蚀气体的措施。
(1)控制柜可以安装在单独的、密闭的采用空调的机房，此方法适用控制设备较多，建立机房的成本低于柜体单独密闭处理的场合，此时控制柜可以采用如上防尘或者一般环境设计即可。
(2)采用独立进风口。单独的进风口可以设在控制柜的底部，通过独立密闭地沟与外部干净环境连接，此方法需要在进风口处安装一个防尘网，如果地沟超过5m以上时，可以考虑加装鼓风机。
(3)密闭控制柜内可以加装吸湿的干燥剂或者吸附毒性气体的活性材料，并近期更换。
3干扰问题
3.1变频器对微机控制板的干扰
在注塑机、电梯等的控制系统中，多采用微机或者PLC进行控制，在系统设计或者改造过程中，一定要注意变频器对微机控制板的干扰问题。由于用户自己设计的微机控制板一般工艺水平差，不符合EMC国际标准，在采用变频器后，产生的传导和辐射干扰，往往导致控制系统工作异常，因此需要采取必要措施。
HP E5970A Optical Power Meter
Agilent / HP 11713A Attenuator/Swit?ch
Agilent 8494G 10MHZ-18GHZ POWER SENSOR W OPT 001
HP 8483A / Agilent 8483A Power Sensor 100 kHz to 2 GHz
ILX Lightwave LDT-5910 Temperature Controller
HP 37722A Digital Telecom Analyzer
Newport 835
Telecom Solutions DCD-519 Digital Clock Distributor
APCON INTELLAPATH 32 SWITCH ACI-2050-C32
FUJIKURA ALCOA CT-04B HIGH PRECISION FIBER CLEAVER
LUCENT BARE SINGLE MODE FIBER 25km Compatible with SMF-28
Tektronix OCP5002 2GHz Optical Converter/Power Meter
TEKTRONIX ST2400 TRANSMITER SDH/SONET SET WITH OPTION
TTC T-BERD 310 Communications Analyzer with Options
Adtech 400301 OC-3C/STM-1 Single Mode Interface
EFD Model 1500XL Adhesive Dispenser
Herz DT-Z Air suspended vibration isolator
JDS SA8MTA200 1x4 switch plug-in for MTA Mainframe
Sumiofcas HP-5 Protection Heater
Tektronix OTS91L1 / MOS42AM
WWG Acterna OLA-15B optical Attenuator
WILCOM T207 LONGITUDINAL BALANCE TEST SET
TEKTRONIX 012-1568-00 SAMPLING MODULE EXTENDER CABLE 1M
Corning Leaf (R) Optical Bare Fiber10.5km
HP 8082A 250 MHz Pulse Generator
Xantrex HPD 15-20 Programmable DC Power Supply
Tektronix TFC200 FiberChamp Handheld Optical Power meter
STOCKER YALE PMF-488-B1 POLARZATION MAINTANING FIBER 165 M
LUCENT BARE SINGLE MODE FIBER 20Km Compatible with SMF-28
HP/Agilent E1406A VXI COMMAND MODULE
HP 83480A Digital Communications Analyzer
MTP / LC LOOPBACK STRATOS P/N 776-0070-00
HP 3478A Multimeter, 5.5 Digit
Spirent NetCom Smartbits SX-7410B Spirent SX7410B
Alpha tft 250 24 Teflon Tubing Natural Reel 1000ft
Powe Ten Inc 3300D-2050 3300D2050 Control
Spirent SX-7410B Communication Analyzer Module
ANRISTU OPTICAL POWER METER ML93A / MA98A
EXFO 20A Fiber-Optic LOT OF 2
LUCENT BARE SINGLE MODE FIBER 15Km Compatible with SMF-28
HP/Agilent E3617A DC Power Supply, 0 to 60 Vdc, 0 to 1 A, 60W
Tektronix P6217 4 GHz Active Probe
Lambda LK-343A-FM regulated power supply
Agilent 10462A TTL Clock Pod for Agilent logic analyzer
Agilent (HP) 10460A TTL CLOCK POD TTL CLOCK POD
Agilent/HP 10466A 3-State TTL/3.3V Data Pod for 16522A
Mitutoyo Digimatic Micrometer Head 350 Series New
Corning Leaf (R)Optical Bare Fiber 8.8 km
853-016517-300 Lam Research Cable NEW
NEW LAM RESEARCH 857-020295-104 EZ WAFER PLUNGER CLAMP
Power Supply Lam Research Input 120V Output 65 DC
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NEW LAM RESEARCH 1000687228 DC MOTOR DISTRIBUTION PANEL
Lam Research LON-RS485/RS232 810-80299-010 REV A PCB
lam Research 714-010657-001, 21" I.D. FXTR, SHIP, LINER
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Lam Research 65VDC Unregistered Power Supply, 660-09823-001
LAM Research 839-800327-226, 200mm ESC Electrostatic Chuck Electrode
Lam Research 772-095677-001-A SMC NAW2000-N01-C
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Lam Research Weldement 839-06940-001 REV B
Lam Research Weldement 839-006940-001 REV B
Lam Research Weldement 839-024496-701 REV S1
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Lam Research 853-330432-003-E1-2319 Pressure Valve
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IP Opto Interrupter S98041 Lam Research 220695600
Lam Research 715-052134-001, 18" Outside Diameter Vent Plate
Lam Research CVR, HSG, ELCTD, ESC, Ceramic Converter Housing, 715-440008-003
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Lam Research 3003421 0050-49522 Rev E1 Swagelok Micro-fit
Lam Research VAT, V, HD ANDZ MonoVAT, G, 796-900847-001
Eprom VAT 102611-R1 64PM.3G.10 Lam Research 631-092514-710
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515-097368-001 Lube Gun - Lam Research
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716-011624-001 Lam Research Insulator Ring Lower Electrode
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LAM RESEARCH 853-010409-007 CPU EPROM
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853-015762-001 Lam Research Shuttle Vacuum Switch Assembly
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LAM Research Weldment Vacuum Manifold 839-013513-001 REV B
LAM Research 839-019090-304A 300mm ESC Electrostatic Chuck Electrode for 2300
LAM Research 839-800327-245A 200mm 8" ESC Electrostatic Chuck Electrode for 2300
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1 Rail, total 2 Blocks/ THK SSR30 1,495mm /LINEAR BEARINGS &RAIL CNC Routers
Fuji Inverter FRN0.1C1S-2J
LS Touch Screen PMU-330ST(V2.3)
SMC Vacuum Ejector ZX1101-K15LZ-EC w/ VJ114-5LOZ
Mitsubishi HC-MFS23B AC Servo Motor 200W
Mitsubishi MR-J2-10B & HC-MF13B - AC Servo Drive & Servo Motor 100W
Mitsubishi PLC CPU A2USHCPU-S1
4 units// SMC Digital Pressure Switch ISE5B-02-26L
SHARP ZW-322MH I/O Link Input/Output Module
YASKAWA SGDS-02A05A AC Servo Drive 200W
Yaskawa SGMPS-01ACA21 AC Servo Motor 100W
Yaskawa SGM-02B512 AC Servo Motor 200W
SMC Vacuum Ejector ZX1071-K15LZB-F
YASKAWA SGMAS-04ACA2C AC Servo Motor 400W
Mitsubishi MR-J2M-20DU-QU Servo Drive 200W
Mitsubishi HF-KP13 AC Servo Motor 100W
Sony Corporation MD20B Detector
THK Motor Driver LX-S
Harmonic Drive HA-655-2-200 Servo Drive
PRO-FACE GP577R-TC41-24VP Touch Screen
Rockwell Samsung CSMT-01BR1ABT3 AC Servo Motor 100W
Panasonic Servo Motor AMKB200B20LAK 200W
Yaskawa SGM-A8B314 AC Servo Motor 80W
Panasonic MSM011A3E 100W AC Servo Motor
Omron PLC CUP Unit C200HE-CPU32-Z
Omron PLC C200HE-CPU32-Z, PA204, ID212, OD212, ID217
ANELVA Corporation Vacuum Gauge QIG-066
Cosel PMC50-4 Power Supply
Yaskawa SGMAS-A5A2A2C AC Servo Motor 50W
Yaskawa SGMAH-01AAA41 AC Servo Motor 100W
Yaskawa SGMDH-22A2A-YR13 AC Servo Motor 2200W 2.2kW
Digital Electronics DRP-9303DU Regulated DC Power Supply
MAGNETEK DS314 AC Drive
Yaskawa SGDS-04A01AY519 Servo Drive 400W servopack
Mitsubishi PLC A1SJ71QLP21 Datalink Unit
Omron Cam Positioner 3F88L-160 & 3F88L-RS17 Resolver (fee shipping)
Pro-face GP2501-SC11 Touch Screen/HMI proface
Panasonic MSMA082A1B AC Servo Motor 750W
3 Sets// Yaskawa SGDS-01A01A & SGMAS-01ACA21 -AC Servo Drive & Motor 100W
Yaskawa SGDS-04A12A & SGMAS-04ACA21 - AC Servo Drive & Servo Motor 400W
Pro-face GP2501-SC11 Touch Screen/HMI proface
Yaskawa SGDH-02AE & SGMPH-02AAA21 -AC Servo Drive & Servo Motor 200W (free ship)
NSD Program Module VS-20TP-1 & VS-20TC2-26
Omron CJ1M-CPU22 PLC CPU Unit
Mitsubishi PLC A2UCPU-S1
Mitsubishi PLC CPU A2ACPU-R21 & A63P& AJ71UC24 & AX41(3ea) & AY41(3ea) & AY13
Omron PLC CS1G-CPU42H, C200HW-PA204, CS1W-SCB41-V1, C200H-OD219(2ae), ID217(2ea)
Mitsubishi MR-J2S-10B & HC-KFS053BG2 - AC Servo Drive 100W & Servo Motor 50W
Mitsubishi PLC A68ADN I/O Analog Input
796-097494-001 Lam Research Panel Check Valve
Lam research 810-17031-2
Lam Research Temperature Calibration Source, 518-025348-001
LAM Research, Quad Micro Stepper Board, 28-8875-014 Rev. G
NEW Lam Research PN: 716-021879-001 Electrode Cooling Duct ISO
Lam Research 715-028626-001, 6" Upper Baffle Plate
754-092082-002 Lam Research VAT Leaf Spring with Bearings NEW!
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LAM RESEARCH 853-390104-001 CABLE ASSEMBLY W/ CONDUIT BODY
853-190074-001, Assy Harness Helium Backside Valve Cont. Lam Research Etcher
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766-009594-001 Lam Research Panel Mount Needle Valve
LAM RESEARCH 715-008763-001 BAFFLE LARGE
715-330161-002 Lam Research 9600 BAC Shield. Brand NEW
LAM Research 810-17078-002 PCB CHILLER RES. CERT.
LAM Research 710-17032-1 PCB. RF SENSE LAM 44xx/45xx ETCHER
LAM RESEARCH 551363280 ELECTRODE UPPER (POLY) ** RE-ANODIZE** A LAM 44xx/45xx E
LAM Research (LAM) 551363757 LAM 44xx/45xx Etcher Holder Wafer 6 Enter Arm
LAM RESEARCH 716-001700-001 QUARTZ WINDOW CHAMBER FRONT
LAM RESEARCH (LAM) 716-021717-002 QUARTZ JAR BELL SLEEVE
Lam Research EIA RF Connectors, 853-800749-007
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LAM RESEARCH 713-031390-001 RING, UPR GAS DUAL FEED 200MM
LAM RESEARCH LINER,MTG PC,ESC 300MM 714-801511
LAM Research Upper Baffle 715-140124-001
LAM RESEARCH (LAM) FILTER BODY TEFLON 775-009929-001
LAM RESEARCH 796-093055-001 BONNET SEAL KIT (NEW)
Lam Research 715-140124-001 Upper Seal Baffle Plate
715-140126-001 Lam Research Upper Baffle
Lam Research Stepper Motor Driver PCB 810-017016-001
Lam Research (LAM) 715-028686-002 Plate, Gap Parallelism
810-001489-003 Lam Research Dual Valve Control Board
810-001489-002 Lam Research Dual Valve Control Board
LAM RESEARCH 839-042575-002 - NEW
Lam Research Middle Baffle 715-140126-001
Lam Research 715-028627-001
715-011912-083 LAM Research Lower Baffle
4002-013-0027 Lam Research Ceramic Insulator
LAM RESEARCH 853-190126-002 CABLE KEYBOARD/TRACKBALL PYLON SMIF
LAM RESEARCH 853-190224-001 CABLE DEBUG, PYLON, SMIF
Lam Research Valve Assembly 05-3011 Rev. A
Lam Research Communication Box 853-017620-001 Tri-Convectron Assembly
Lam Research Lower Electrode Base Assembly, 312-020-004
Lam Research 810-057016-003 PCB Assembly PLTN HTR PWR Board
Lam Research 714-031338-002 B CMP 41/05 Cover
NEW Lam Research PN: 857-441568-101 SP PC,RGLTR/XCR/V,10 RA Weldment Line Kit
LAM RESEARCH RAINBOW 4600 PLASMA ETCHING SYSTEM OPERATIONS MANUAL VOLUME 1 2 3 c
Lam Research Lower Electrode Base Assembly, 9.5", 718-092326-081
Lam Research Lower Electrode Base Assembly, 9.5", 718-094523-282
