品牌:GE | 规格:DS3800HCVA1J1H | 材质:DS3800HCVA1J1H |
产地:美国 |
GE DS3800HCVA1J1H
4、正确选择接地点,完善接地系统
接地的目的通常有两个,其一为了,其二是为了抑制干扰。完善的接地系统是PLC控制系统抗电磁干扰的重要措施之一。
系统接地方式有:浮地方式、直接接地方式和电容接地三种方式。对PLC控制系统而言,它属高速低电平控制装置,应采用直接接地方式。由于信号电缆分布电容和输入装置滤波等的影响,装置之间的信号交换频率一般都低于1MHz,所以PLC控制系统接地线采用一点接地和串联一点接地方式。
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集中布置的PLC系统适于并联一点接地方式,各装置的柜体中心接地点以单独的接地线引向接地极。如果装置间距较大,应采用串联一点接地方式。用一根大截面铜母线(或绝缘电缆)连接各装置的柜体中心接地点,然后将接地母线直接连接接地极。接地线采用截面大于22 mm2的铜导线,总母线使用截面大于60mm2的铜排。接地极的接地电阻小于2Ω,接地埋在距建筑物10 ~ 15m远处(或与控制器间不大于50m),而且PLC系统接地点与强电设备接地点相距10m以上。
信号源接地时,屏蔽层应在信号侧接地;不接地时,应在PLC侧接地;信号线中间有接头时,屏蔽层应牢固连接并进行绝缘处理,要避免多点接地;多个测点信号的屏蔽双绞线与多芯对绞总屏电缆连接时,各屏蔽层应相互连接好,并经绝缘处理。选择适当的接地处单点接点。
SANKYO SC3000 ROBOT,SC3000-300
SEIWA MICRO SPOT WELDER DC MSW-412r-0002
YASKAWA CACR-UP130AAB,PCB JASP-WRCA01B,O/N R10215-992-1
GENESIS VACUUM TECHNOLOGIES 2.1,323-0081
EBARA CRYOCOMPRESSORUNIT 3.1,HA3.1
PFEIFFER TURBO PUMPTMH 071-010-005 P 3P + CONTROLLER TC600+ TVF 005
FANUC HANDY FILE A13B-0159-B101
NOR-CAL PENDULUM VALVE NC-95-PP,PRODUCTS0190-17435
OMRON PA205 CJ1H -CPU65H,CJ1W IC101 ETN21 MCH71 NC433 AD041-V1 DA041 ID262
OD2
BOSCH PEP-DS 3843 991 625
JASCO AS-1559
OSAKA VACUUM COMPOUND MORECULAR PUMP TG1100FCAB-60
SCAPACS FIBER LASERHEAD 1064NM KM0001-002-AC, KM0029-001-AA, KM0005-018-BA
NEC FACTORY COMPUTERFC-9801A
NEC PC-9801BX3 PERSONAL COMPUTER 32 BITCPU UNIT,PC-9801BX3/U2
OMRON F350 VISION ,F350-C40
NEC FACTORY COMPUTERFC-9801A
NSK DD SERVO DRIVE,MOTOR ESA-Y5120AF4-21.1,YS5120FN001
DITTEL-SYSTEM MODULEAE6000 ARTL NR. F62001
NIHON MARUKO KEYTRAN-II-UL
FANUC SERVO AMPLIFIER MODULE A06B-6114-H211D
DITTEL-SYSTEM MODULEH6000 ARTL NR. F64001
ESI 123460 & BEI KIMCO LA28-13-003Z
NEC FC-9801V
BOC EDWARDS STD EXCHEXT250 DN100CF
ABB 5761789-6H SNAT609 TAI, SNAT603CNT,5761861-2B
LISA LASER BODY-VERT
TOSOH SC-8010
SMC THERMO GALDEN HRZ002-L-X001 AC200/-208V 3PHASE
YASKAWA CACR-UP130AAB,PCB JASP-WRCA01,O/N RA7694-163A-18
DENSO ROBOT RC5-MBA
NEW MITSUBISHI RFZ-140B
FLUKE PM6306 AUTOMATIC RCL 1KHZ
Leybold Inficon H200M
BOC EDWARDS TURBOMOLECULAR PUMP EXT250DN100CF
NEC FC-S34Y/SY2Z3Z [FC-S34Y/SY2Z3ZD]
VOLTECH PM 3000 PM3000
VARIAN TURBO-V 250 TV 250 PUMP TURBO.V 250 9699523S021
KYOSAN AUTO BOX EHK30-TW1 LOT NO. WB4822
NEW MITSUBISHI RFZ-560A
RELIANCE ELECTRIC VCIB-22 VECTRIVE AC-SERVO
FANUC A16B-3200-0330, A20B-3900-0074, A17B-3300-0201, A20B-3300-0084/03B
NEC FACTORY COMPUTERFC-9801A
SAMSUNG FARA SRC+ ROBOT SRC-S21A06
VARIAN TURBO-V 250 TV250PUMP 9699007 TMP, TV250 EX9699523S012 CONTROLLER
+CABLE
VARIAN TURBO-V 250 TV 250 PUMP CONTROLLER TURBO.V 250 9699423S023
VARIAN TURBO-V 250 TV 250 PUMP TURBO.V 250 C.U. EX9699423
TECHNOS 5000K PC
NEC FACTORY COMPUTER FC-9821X
MULTILIN SR750-CASE 750-P1-G1-S1-HI-A20-R-T-H
NIKKI DENSO ULSTA-300
GE MULTILIN SR 469-P1-HI-A20 TH SR469
FUJITSU DENSO BH5-3544
EBARA CRYOCOMPRESSOR 2.1,323-0014
SSD DRIVES DC INTEGRATOR 590+SERIES 590P/0165/500/0011/UK/ARM/0/0/0
TOA DK TURN TABLE TTT-510
CHRIST ELEKTRONIK PLC SET, SN42 CP40 PP40 E16S 8EA A163 7EA
NEC FC-9813
EQUIPE TECHNOLOGIES ATM204-1-S
#0004 ADAPTRONIC KT2000 TEST
TECHNOS 5000K PC
LISA LASER BODY f:120mm
RELIANCE AUTOMAX 7010 PROCESSOR 57C435A,0-57435-1,J-3650-6
VARIAN PROCESS UTILITY BOX,ASSY 04-709086-01 REV AD,SCHEM 04-705991-03
RELIANCE HR2000 Controller 3RA2015
NEC FACTORY COMPUTER FC-9821X
FANUC BOARD A20B-0008-0960/04A & A20B-0009-0070/01A
OLYPUS SZ61 MICROSCOPE WITH CCD IMC-147FT
NEW GE MULTILIN SR 469-P1-HI-A20-T-H SR469
NC NOR-CAL INTELLISYS SOFT SHUT TSS-IQA-250-ISO-63-K910
ULVAC CRYOGENICS CRYO-T 8 SUPER TRAP,CRYOPUMP CRYO-T8S,RS10
INDUSTRIAL COMPUTERGE FAUC IPC 1062IR-24 IC752SPL106B
NEC FACTORY COMPUTER FC98-NX FC-D21A SY4Z5Z
YOKOGAWA DD ACTUATORS - MOTOR DM1050A00& DRIVER SD1050A02
BOSCH D-64711 ERBACH1070083278-117 IMGCPS21-3(CM) CPU MMX266
OMRON PLC PS000 NM010 UV-250 C-820A M2010 CS010 IP000
OMRON NT620C-ST142B
LISA LASER LENS 2.5-5mm
NEC PERSONAL COMPUTER PC-9801BX4/U2
FANUC AC SERVO MOTORA06B-0212-B100,PULSECODER A860-2000-T301
BRANSON/ IPC 31172 HUNTWOOD AVE P/N 12390-01 PM732
SHIMADZU TMP POWER CONTROLLER EI-D4203M(T1)
ORBOTECH 0382396B CPU 3.20GHz
ETEL DSA2 DIGITAL SERVO DSA2P1540A
GASONICS/ IPC 2730 JUNCTION AVE P/N 12390-02 PM732
GASONICS/ IPC 31172HUNTWOOD AVE MATCHING BOX P/N 16801-01 PM 732
SANYO DENKI ABS AMPLIFIER 65AA030TXR02
DIRECT DRIVE MOTOR 62890-001 64196-007
AE ADVANCED ENERGY PDX-1250 3156024-111A
YUASA CORPORATION 60V15A UNIT,SWU 6015T2 D1
ILLUNIS XMV-11002M 11MEGAPIXEL
SANYO DENKI SERVO MOTOR 64BM180UXS5B,09511280D OPTICAL F681000DD41
ELECTROCRAFT BLDC MOTOR WITH HARMONIC DRIVE AND INERTIA 24VBRAKE
EUROTHERM D 6250 ANALOGUE 664-123-123
NEC FACTORY COMPUTER FC-9801B
MULTILIN SR750-CASE750-P1-G1-S1-HI-A20-R-T-H
NEW ABB REF630 LMIO11KHL160003R0001C
XYCOM 3515KPMT
YASKAWA SERVO USAFED-20C32T 15A 1500
ETEL DSA2 DIGITAL DSA2P174ZA-033A
KLA FFA MUSTANG RANDOM BOARD 710-611867-000/AD
EUROTHERM D 6250 POWER SUPPLY 661-02-00
EUROTHERM D 6250 ANALOGUE ACQUISITION 663100100
EUROTHERM D 6250 RELAY OUTPUT 659-00
ABB DRIVES 61061134YPP110A REV H, YPK 112A, YPK 113A
SUTRON KALLFASS BT20/002149
A-B Allen-Bradley MPL 240V AC MOTOR MPL-A560F-SJ74AA
NEW MITSUBISHI E32P4-A BU148A336G51
PI PHYSIK P-275.30 CONTROLLER,PIEZO CONTROL E112.1.HIGH AMPE-107,E-102,E-
111
TEL TOKYO ELECTRON LTD. E2B023-11/ECUM E2B024-11/ECUD E2B023/ECU
KAWASAKI SANYO MOTOR 27BM065BBX20,60490-1001RB2
YASKAWA ROBOT CONTROLLER BOARD JASRC-BCP01,DF9203858-B0
RELIANCE ELECTRIC BLDC MOTOR WITH HARMONIC DRIVE GEARHEAD AND
AMAT APPLIED MATERIALS 0100-A0019 BOARD 0110-A0014 REV:A
Radisys corporationEPC-5 CPU
MECS ROBOT CONTROLLER UTW1010HG
ADVANCED ENERGY PE-1000 AC PLASMA 3157501-000D
XYCOM VMEBUS 70978-001 70655-099 BIOS V2.4 CPU 133MHz
FANUC BOARD A16B-2203-0754/04A,A20B-3300-0393/02A,A20B-3300-0310/08F
TEL TOKYO ELECTRON LTD. E2B023-11/ECUM E2B024-11/ECUD E2B023/ECU
FANUC BOARD A20B-0008-0911.07A
TEL TOKYO ELECTRON TOHOKU TS-4000Z-16 REV 1A MC-31062 MC-31063
WAFER TRANS M/C WAFER AM0907-W/T-50T
LINX 7300 MAIN CONTROL PCB
ULVAC CRYOGENICS RS5REFRIGERATOR UNITRS5
GE MULTILIN SR 745-W2-P1-G1-HI-P-H SR745
PFEIFFER VACUUM TURBO MOLECULAR DCU150
ESI KLA INSTRUMENTSP8 SHIVA BRIDGE NO. 740-806130-00 FOR 9250
WAFER TRANS M/C TESTED WORKING FREE
HP PROLIANT DL380 GEN9,HSINS-2145 COMPUTER CPU E5-2650,2.30GHz
ABB BOARD WE-EN-01-155 6642396B1
SANYO DENKI ABS SUPER 65AA008TXR01
FANUC BOARD A20B-2100-0423 04D,A350-2100-T426/05
MECS ROBOT CONTROLLER UTW1010HG
SHINKKO SS-SERVO TYPE SSD-2220 2.2KW
YASKAWA VISION CONTROLLER MYVIS JEVSA-YV250
HTA HT 300 SERIES AUTOMATIC LIQUID AUTOSAMPLER TESTED
DIRECT DRIVE MOTOR 65271-003 62196-003,OIH TAMAGAWA 35-2000C/T-L3-5V
GE MULTILIN SR 745-W2-P1-G1-HI-P-H SR745
HD -65-160-180556