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福建光沃自動化設備有限公司
聯系人 ：歐工（銷售經理）
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信用=財富 誠信=財富 共贏=財富
通常MCU電路及其外圍電路需要與充電電源進行隔離，減少高頻干擾對MCU電路造成影響。此處推薦3000V隔離的超寬電壓輸入穩壓電源URF2405LP-20WR3，從充電電源的輸出端取電，為MCU及其外圍電路提供穩定的5V電壓，并且能夠解決共模浪涌對MCU的干擾。
遙信單元的供電電源推薦URF2424P-6WR3寬壓輸入DC-DC電源進行隔離，避免共模浪涌從遙信端口對系統造成沖擊。該沖擊輕則引起系統死機重啟，嚴重時還會引起系統損壞。
當給運放供電需要正負電源時，可以選擇A0512D-2WR2定壓輸入 DC-DC電源，提供±12V電壓輸出。485通信可選擇TD501D485H進行隔離，避免通信端口的干擾影響系統可靠性。
配網自動化系統設計要點解析：選用高隔離電源模塊、進行旁路處理。
由于終端面臨著嚴酷的EMC環境，系統存在多個地方接地，共模干擾對系統影響很大。對于電源的應用，首先，應盡量采用高隔離的電源模塊（如金升陽提供的3000V隔離URF系列的模塊）或者在敏感端口進行旁路處理（如在單片機復位端口上加1nF電容旁路），以解決共模浪涌/脈沖群等共模類干擾對系統的影響，造成系統死機或者重啟。其次，應在敏感的信號輸入輸出端口進行旁路處理。
那么，通常如何進行敏感端口的旁路處理呢？以下舉一個簡單但非常經典的案例。如圖5所示：正常工作時，按照左圖進行設計，電路可以按照預定程序運行。當測試4KV脈沖群性能時，則容易出現三極管不受控、誤動作的情況。在系統中表現出來的現象就是繼電器誤跳動，一些指示燈或者一些裝置閃爍跳動等。這實際上是I/O口的走線較長或者控制回路較大時，容易耦合高頻信號，從而產生誤動作。添加旁路電容，可以減少高頻信號的耦合，減小對端口的干擾，提高產品的一致性和可靠性。當然，這只是提供一種解決方法，實際上可以用優化布局等方法去解決。
圖5 典型端口處理案例原理圖
EMC的測試大部分屬于高頻干擾，容易通過地線和器件的寄生參數直接干擾后端的用電電路，因此，脈沖群影響繼電器誤動作，共模浪涌引起系統重啟等現象多有發生，只有恰當的電源選型加上優質的系統設計，才能實質性的提高配電終端的可靠性。
WESTINGHOUSE A201K2BA MOTOR CONTROL NEW A201K2BA 45A
GENERAL ELECTRIC RT1L RELAY NEW RT1L
EFECTOR PROXIMITY SWITCH IFA2002-ABOW NEW IF0303
GENERAL ELECTRIC KM5EJ MODULE NEW KM5EJ
EFECTOR PROXIMITY SWITCH IGA2005-BB0A NEW IG0327
OMRON E3MC-X41 PHOTOELECTRIC SWITCH E3MCX41
PRO-FACE 3580801 DEVICE NET INTERFACE UNIT NEW 3580801
EFECTOR IFM PROXIMITY SWITCH IEB3001-BPOG NEW IE5072
SQUARE D 9007-C62B2 SWITCH NEW 9007C62B2
SQUARE D 9007-C52B SWITCH NEW 9007C52B
EFECTOR IFM PROXIMITY SWITCH OGT-HBOA NEW 0G0034
SQUARE D 9007-C52F SWITCH NEW 9007C52F
CUTLER HAMMER 10316H-10 SWITCH NEW 10316H10
CUTLER HAMMER 10250H-5200 PUSHBUTTON NEW 10250H5200
EFECTOR IFM IDC2050BARKA/SL?/LS?-300BL NEW ID0038
EFECTOR IFM PN4222 NEW PN-100-SBN14-HF?BOW/LS/ /V
EFECTOR IFM PN2220 NEW PN-400-SBN14-MF?RKG/US/ /V
ATC PHOTO SENSOR 7652A D04 F22 SX NEW 7652AD04F22SX
FIREYE E1R1 INFRARED AUTO CHECK AMPLIFIER MODULE NEW
EFECTOR IFM IG5822 NEW
SPECTRA BOARD 3500-101 REV A 3500101
ASCO RED HAT SOLENOID VALVE 8215G33 NEW
ASCO RED HAT SOLENOID VALVE EF8210G002 NEW 8210G002
ASCO RED HAT SOLENOID VALVE 8210G001 NEW
ASCO RED HAT SOLENOID VALVE 8210G002 NEW
ASCO RED HAT SOLENOID VALVE 8215G30B NEW
REXROTH RMA12.2-32-DC024-050 NEW OUTPUT MODULE RMA12
ASCO RED HAT SOLENOID VALVE 8320G3 NEW
HONEYWELL BURNER CONTROL S7820A 1007 USED S7820A1007
ASCO RED HAT SOLENOID VALVE 8321G3 NEW
ASCO RED HAT SOLENOID VALVE 8215C63 NEW
ASCO RED HAT SOLENOID VALVE 8342B NEW
ALLEN BRADLEY 1771-P2 SER. B 1771P2 POWER SUPPLY USED
HONEYWELL INTERVAL MOUNT TRANSFORMER 198162EA NEW
GAMMAFLUX MODEL 9152
TORK PHOTOCONTROL 2008 480 VAC NEW
FURNAS ELECTRIC CO 42CE35AJ106 NEW 42CE35AJ106
MICRO SWITCH PHOTOCELL MODEL PC1LX NEW
EAGLE SIGNAL CONTROLS DA-1010A3-03 NEW DA1010A303
MASSTRON M1500 SCALE INDICATOR
ISSC 1010-1-G-2-B NEW 10101G2B
ISSC MOTION DETECTOR 1260-1-K-C NEW 12601KC
HEDLAND FLOWMETER H800-100 10-100 GPM, OIL NEW
BOSCH REXROTH TRANSFORMER DRIVE R911282013 INDRADRIVE
JAN FAN JF-MMS-HE MODULAR MOTOR END DOME NIB
SUNX CX-M10 SENSOR SYSTEM NIB
SIEMENS 60A 3P COIL CLMD3C120 NIB
ASCO TRI POINT PB11A PRESSURE SWITCH NIB
ALLEN BRADLEY 800EP-P73DL3 NEW 800EPP73DL3
ALLEN BRADLEY 800A-L2GR24 NEW 800AL2GR24
ALLEN BRADLEY 800A-T2GG24 NEW 800AT2GG24
ALLEN BRADLEY 1745-E105 USED 1745E105
ALLEN BRADLEY 800T-N297B SER. U NEW 800TN297B
ALLEN BRADLEY 800E-ALR1 NEW 800EALR1
ALLEN BRADLEY 800A-N60 SER. A NEW 800AN60
ALLEN BRADLEY 700-ZBR520AZ1 SERIES A 700ZBR520AZ1
ALLEN BRADLEY 800EP-P33DL3 NEW 800EPP33DL3
ALLEN BRADLEY 802T-W1A ROLLER LEVER NEW 802TW1A
ALLEN BRADLEY 1794-ASB SER. D 1794ASB
HUBBELL HBL2320 TWIST LOCK RECEPTACLE 20A NIB
HUBBELL HBL2310 TWIST LOCK RECEPTACLE 20A NIB
HUBBELL HBL5366C 20A 125V PLUG NIB
ALLEN BRADLEY 2755-LS7-IB1 SER. A 2755LS7IB1
SOLA SDN 2.5-24-100 POWER SUPPLY
PASS & SEYMOUR L520-R 20A TURNLOK RECEPTACLE NIB
BARKSDALE PRESSURE SWITCH E1H-H500-P6-T NEW E1HH500P6T
INTERNATIONAL POWER DC POWER SUPPLY IHD24-4.8 NIB
POWER-ONE INTERNATIONAL SERIES HAA512-A POWER SUPPLY
BUSS KRP-C-700SP LOW PEAK TIME DELAY FUSE NIB
SCHRADER BELLOWS (PARKER) 3WAY 2POS LEV/MAN RET VALVE
HONEYWELL LIMIT CONTROL L4069A 1078 TRADELINE HVAC NIB
ASCO TRI POINT PRESSURE SWITCH HC20A214 NIB
ASCO TRI POINT PRESSURE SWITCH HB40A214 NIB
DATAMYTE 2003-00 PENDANT USED 200300
SKF 6307 ZJEM BEARING NEW 6307ZJEM
MRC 5206CF BEARING NEW
CSI 330080-02 BOARD USED 33008002
TREX-ONICS 63308 NEW DC 3 POLE FEM. 63308
SMC CA1N100A-PS PACKING KIT NEW CA1N100APS
BRAD HARRISON 43321 NEW SAFETY PLUG 43321
FANUC A20B-3300-0220 NEW A20B33000220
COLONIAL V17273N 1-1/2'' TRUE UNION BALL CHECK VALVE
AERO MS3470-L-20-16S NEW RECEPTACLE MS3470L2016S
GE MOTORS 5PY59JY23 TACHOMETER GENERATOR USED
SANYO DENKI FAN 9WF0624H4D03 NEW
ALLEN BRADLEY 1326AB-RPA30-11 PRECISION GEARHEAD USED
RELIANCE ELECTRIC 45C92 MEMORY MODULE 45C92
HOFFMAN A-404LP ELCLOSURE NEW A404LP
SQUARE D 8903SQ02 USED LIGHTING CONTACTOR 8903SQ02
ATC 331B357Q10XX TIMER NEW 331B357Q10XX
PARKER P8S-SPTHXD SWH KIT NEW P8SSPTHXD
JOHNSON CONTROLS G775-RJD-14 CONTROL NEW G775RJD14
WHITE RODGERS F145-1328 INDOOR SENSOR NEW F1451328
COLONIAL FULL BLOCK V07104N TRUE UNION BALL VALVE
WHITE RODGERS 5059-134 PILOT RELITE CONTROL NEW 5059134
HONEYWELL 203422C ADAPTER BOARD NEW 203422C
MARS 32397 SS TIMER NEW 32397
2 BANNER ENGINEERING BR-2 NEW RELAYS BR2
BANNER ENGINEERING BTR-1A RELAY NEW BTR1A
YORK INTERNATIONAL 031-00880-001 NEW 03100880001
EFECTOR PRESSURE SENSOR PB7022 USED PB7022
SIEMENS P220 NEW CIRCUIT BREAKER P220
ALLEN BRADLEY 872C-A2N8-A2 CABLE SER. A NEW 872CA2N8A2
ALLEN BRADLEY 889D-F4AC-5 SER. B NEW 889D-F4AC-5
3 ALLEN BRADLEY 889P-F3AB-5 SER. A NEW 889PF3AB5
TURCK ELEKTRONIK RKM30-2M CABLE NEW RKM302M
IFM EFFECTOR IE5287 SENSOR NEW IE5287
POTTER & BRUMFIELD CHB-38-30011 USED CHB3830011
USON MEMORY MODULE 409-X300 REV.A REMAN 409X300REVA
ALLEN BRADLEY 802T-APJ9 LIMIT SWITCH 802TAPJ9 NEW
HUBBELL HBL5269C NEW CONNECTOR HBL5269C
THOMAS & BETTS EVER-LOK PLUG 8015 NEW
ALLEN BRADLEY 1401-N46 NEW SER.A 1401N46
PHD 19080-2-0041 GRIPPER USED 03571423-01
WHITE RODGERS 1C30-302 THERMOSTAT NEW 1C30302
MICRO SWITCH BZE6-2RQ2 NEW BZE62RQ2
TELEMECANIQUE LC1-D09G7 CONTACTOR NEW LC1D09G7
ALLEN BRADLEY 1401-N45 NEW SER.A 1401N45
MAGNECRAFT W250ACPX-9 NEW RELAY W250ACPX9
EAGLE SIGNAL DA1010A3 COUNTER NEW DA1010A3
IFM IGA2005-BBOA NEW PROXIMITY SWITCH IGA2005BBOA
ALLEN BRADLEY 700-HA33Z24 NEW RELAY 700HA33Z24
ALLEN BRADLEY 800T-XD4 NEW 800TXD4
SLOAN H710A CP STOP ASSEMBLY NEW CHROME PLATED
ALLEN BRADLEY F-20408 NEW YOKE RETAINER F20408
NORDSON 273378 10' HOSE USED
NORDSON 273378E 10' HOSE USED
IFM EFFECTOR OU5003 SENSOR NEW OU5003
ALLEN BRADLEY 872C-A1N8-A2 CABLE SER. A NEW 872CA1N8A2
IFM EFFECTOR E20053 NEW E20053
MODICON AS-E908-131 NEW ASE908131
LOT OF 6 BUSS FUSES FNM-4 NEW FNM4
MAC VALVE 163B-111AA NEW 163B111AA
MAC VALVE 163B-111AAAA NEW 163B111AAAA
MAC VALVE B11C-PM-591DA-162 NEW B11CPM591DA162
GOULD SHAWMUT FUSE TR150R
MAC VALVE 6221C-000-PM-111DA NEW 6221C000PM111DA
MAC VALVE 6321D-511-PM-111DA NEW 6321D511PM111DA
PARKER SCHRADER BELLOWS 316050110 NEW 316050110
ALNOR COMPUFLOW MODEL 8575
MAC VALVE 6541B-213-PM-11?1DA NEW 6541B213PM111DA
HOFFMAN 55390 ELCLOSURE NEW
BK PRECISION 100Mz FREQUENCY COUNTER 1803C NEW
ALLEN BRADLEY 800H-3HZ4Y SER. A ENCLOSURE NEW 800H3HZ4Y
CATERPILLAR 975680 PRESTOLITE HB60MJ360BA CONTACTOR
CROUSE HINDS AR624 RECEPTACLE NEW AR624
MICROTEK STEP505-T REMAN STEP505T
NUMATICS 2FC2 NEW CONTROL VALVE 2FC2
GRUNDFOS CR/I/N 1S/1/3/5 HQQV KIT NEW CRIN1S135
TRERICE 91400 SELF OPERATING TEMP. REGULATOR NEW 1 1/4"
TRERICE 910 SELF OPERATING TEMP. REGULATOR NEW 3/4"
NUMATICS 122BB5Z2KL00030 NEW
Johnson Controls 1 1/2 " Penn V47AR-1 G9823 WATER VALVE
CAT 97-4711 LIGHT NEW 974711
HUMPHREY 31P NEW PUSHBUTTON VALVE 31P
SICK OPTIC 7021817 NEW RELAY ASSEMBLY 7021817
ALLEN BRADLEY 77135-166-55 NEW MOUNTING CLIP 7713516655
TELEMECANIQUE ZB2-BA2 NEW ZB2BA2
ENERPAC WFM-71 NEW WFM71
ALLEN BRADLEY 40266-583-02 NEW JUMPER KIT 4026658302
ENERPAC WSM-71 NEW WSM71
HENNELLS CYLINDERS NC9-MF1-NC NEW NC9MF1NC
FESTO SWIVEL FLANGE SNCS-32 NEW SNCS32
CLIPPARD "THE CILINDER" SDD-10-3 NEW SDD103
PARKER VALVE 9C600B NEW
BIMBA FLAT-1 FO-170.125 NEW FO170125
PHOENIX CONTACT MALE 17 71 74 9 NEW 1771749
PHOENIX CONTACT FEMALE 17 71 72 3 NEW 1771723
PARKER CYLINDER CD522465 A NEW CD522465A
PHD 15903-90-12 CORDSET NEW 159039012
PAMOTOR MODEL 8550D FAN NEW 8550D
TEXAS INSTRUMENTS 5TI-3201 COUNTER BOX 5TI3201
LAMBDA LSS-39-12 POWER SUPPLY NEW LSS3912
BALLUFF BES 516-325-S4-C COMPLETE SWITCH AND CORDSET
BALLUFF BES 12,0-KH-1 ACCESSORIES NEW BES120KH1
BALLUFF BKS-S 20-4-PU-05 CORDSET NEW BKSS204PU05
OHMITE L100J5R0 NEW RESISTOR L100J5RO
CONDOR GPC80-5 POWER SUPPLY 5V 16A NIB
PARKER M09844699 VALVE NEW M09844699
PHD 16002-2-2021 GRIPPER NEW 1600222021
CUNO 13018-26-500080 NEW FILTER 1301826500080
PARKER CJ13701 VALVE NEW CJ13701
ASCO 8210B20 NEW SOLENOID VALVE 8210B20
PARKER H42VXLGA53A VALVE NEW H42VXLGA53A
WATTS 3/4 800M4QT SH PRESSURE VACUUM BREAKER NEW
YASKAWA 73600-A0102 NEW 73600A0102
ALLEN BRADLEY 802B-PSARBSX NEW 802BPSARBSX
ALLEN BRADLEY 800P-NBG NEW SER. D 800PNBG
GEMS SENSORS 43765 FLUID SENSOR NEW 43765
ALLEN BRADLEY 1746-BAS USED 1746BAS SERIES C
HONEYWELL R7247C 1001 REMAN. U.V. AMPLIFIER R7247C1001
BANNER IT23S FIBER OPTIC CABLE IT23S
BANNER IT23SM900 FIBER OPTIC CABLE IT23SM900
REXROTH INDRAMAT 109-0785-3B21-0?8 BOARD 10907853B2108
VIKING PUMP MODEL HL125 NEW ITEM
REXROTH INDRAMAT VT5007-17 BOARD NEW VT500717
REXROTH INDRAMAT VT5007-17A BOARD NEW VT500717A
TRERICE 91400 SELF OPERATING TEMP. REGULATOR NEW 1"
HONEYWELL UDC2000 MINI-PRO REMAN DC200H-0-000-100000-0
REXROTH INDRAMAT 109-0942-4B45-02 BOARD NEW
HONEYWELL UDC2300 REMAN DC230L-E0-10-0A00000-00-0
REXROTH INDRAMAT 109-0942-4B5-09 BOARD NEW 10909424B509
HONEYWELL MINI-PRO UDC2000 REMAN DC200H-0-000-1F0000-0
REXROTH INDRAMAT 109-0852-4B01-07 BOARD
CAT 097-5710 CABLE NEW 0975710
REXROTH INDRAMAT 109-0785-3B17-09 BOARD
REXROTH INDRAMAT 109-0785-3B17-04 BOARD
CAT 978148E SCANNER RIBBON
CAT 978148E SCANNER RIBBON USED
IFM EFECTOR E10215 CORDSET NEW E10215
CAT 092-9690-E-00 BRAKE NEW 0929690E00
CAT 090-7344 KIT NEW 0907344
RED CROWN MARPOSS F10 PENCIL PROBE NEW F10
CAT 092-5791 CAPACITATOR NEW 0925791
LEGEND VALVE T/S-603 NEW TS603
LUBER-FINER FF745 FUEL FILTER NEW G6367
ALLEN BRADLEY 1764-24AWA USED 176424AWA
CAT 092-9715 VALVE NEW 0929715
ALLEN BRADLEY 1746-IO12 MODULE SER. B NEW 1746IO12
CAT 057035 FILTER NEW
ALLEN BRADLEY 1746-OV16 MODULE SER. C 1746OV16
CAT 092-3066 BEARING NEW 0923066
MINARIK ADJUSTABLE SPEED DRIVE MM03-PCM NEW MM10-PCM
ALLEN-BRADLEY 1746-0W16 USED SERIES C 17460W16
RIDGID 1/8'' 47755 HIGH SPEED PIPE DIES NEW
BRAY 90-1180-21330-532 USED 90118021330532
ALLEN-BRADLEY 1746-1V16 USED 17461V16 SERIES C
HONEYWELL M640A1147 ACTIONATOR MOTOR NEW M640A1147
IAI ROBO CYLINDER RCS-C-SM-I-100-1-P NEW RCSCSMI1001P
PARKER M09844699 VALVE NEW M09844699
AIR SENTRY D-100 BREATHER CONTROL NEW D100
COLE HERSEE 90030-01 SWITCH NEW 90030-01
AMETEX 161964 GAUGE 1/4 NPT
COMAIR 031075 FAN NEW 031075 MODEL GL24B4
ASHCROFT D424B-XFS NEW PRESSURE CONTROL D424XFS
CONBRACO 18C400 TEMPERATURE AND PRESSURE RELIEF VALVE
STRATAFLOW 1" NO. 300 CHECK VALVE
MODICON A120 NEW 6728-042.278925
ACTION INSTRUMENTS 1000-6034 RELAY NEW 10006034
REXNORD ZCS5400 NEW
ROSS 3643A2001 VALVE NEW 3643A2001
ROSS W3643A2001 VALVE NEW W3643A2001
RELIANCE ELECTRIC 612180-902R FAN NEW 612180902R
ROSS 3623A2003 VALVE NEW 3623A2003
ROSS 3646A2002 VALVE NEW 3646A2002
ROSS 3626A2004 VALVE NEW 3626A2004
TUTHILL CC1201513-CV PUMP NEW CC1201513CV
ALLEN-BRADLEY 802T-AMT NEW LIMIT SWITCH 802TAMT
HITACHI DCM-05A 03 PERMANENT MAGNET MOTOR NEW DCM05A03
ALLEN BRADLEY 802T-DPU SWITCH NEW 802TDPU
5 ALLEN BRADLEY 1492-SM6X12 MARKERS SER. B 1492SM6X12
OHMITE DOSX7T NEW RELAY DOSX7T
ERNI BOARD 533 601 USED 533601
ASCO RED-HAT MPS8262C2 VALVE NEW MPS8262C2
ABB 3HAB 6197-1 NEW 3HAB61971
BROWNING 02920424700 MOUNTED BEARING NEW 02920424700
ABB 3HAB 6133-1 NEW 3HAB61331
2 HEIDENHAIN 291698-26 NEW 29169826
ALLEN BRADLEY OVERLOAD RELAY X-42184 NEW X42184
KIRA SPINDLE KSP-6015 USED KSP6015
2 ALLEN BRADLEY 1492-CB3 BREAKERS USED 1492CB3
ABB 3HAB 8737-1 NEW 3HAB87371
DELTROL CONTROLS 165 SPDT 21596-70 NEW 165SPDT 2159670
MARS GE MOTOR RUN CAPACITOR 12005 5MFD 370VAC NEW
DELTROL CONTROLS 165 DPDT 21475-70 NEW 165DPDT 2147570
MARS MOTOR RUN CAPACITOR 12004 NEW 4MFD 370VAC
HUBBELL HBL5352 NEW PLUG HBL5352
HONEYWELL BURNER CONTROL RM7800 G 1018 USED RM7800G1018
HUBBELL HBL4760 NEW RECEPTACLE HBL4760
HUBBELL HBL5461NEW RECEPTACLE HBL5461
LOT OF 5 FEDERAL MOGUL OIL SEALS 412027
POTTER & BRUMFIELD 38595 IAC-24 NEW IAC24
GENERAL ELECTRIC TC2228S NEW TYPE "RB" TC2228S
TURCK MULTI SAFE MS 13-22 ExO-R AMPLIFIER RELAY
HUBBELL HBL2623
HUBBELL 2720A
HUBBELL HBL4729C CONNECTOR
HUBBELL HBL7101C
PASS & SEYMOUR L615-P NEW L615P
INA LINEAR BEARING RUS 19069 2 PER BOX NEW RUS19069
RED DOT APEF-1 NEW APEF1
GENERAL ELECTRIC CR215GFK NEW LIMIT SWITCH
NTE R12-17A5-120N NEW R1217A5120N
AMPERITE 115N060 NEW DELAY RELAY 115N060
NTE R12-17A3-120 NEW R1217A3120
POTTER & BRUMFIELD KR45391 NEW KR-4539-1
HUBBELL 7593 NEW MIDGET TWIST LOCK 7593
INGERSOL RAND NEW 1/2" DIAPHRAM PUMP 660053-244
JOHNSON CONTROLS TEMPERATURE CONTROL A70HA-1 NIB
NEW BINKS AIR & FLUID BALL VALVE 172-31611
MODICON AS-B827-032 MODULE USED ASB827032
MODICON AM-SA85-000 MODULE REPAIRED AMSA85000
MODICON AS-B872-200 MODULE REPAIRED ASB872200
MODICON AS-B805-016 MODULE REPAIRED ASB805016
MODICON AS-B824-016 MODULE REPAIRED ASB824016
MODICON PC-0984-685 CONTROLLER USED PC0984685
MODICON 140CPU11303 CONTROLLER USED 140CPU11303