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6SE7041-8HK85-1HA0
6SE7041-8HK85-1HA0
6SE7041-8HK85-1HA0
37、接地螺丝因机柜本体与底座间有胶皮形成绝缘,屏蔽地汇流排与底座间绝缘,现场控制站按规定做好接地处理。即分别接至现场控制站接地汇流排上。I/O柜的电源地与UPS的电源地接至同一个地,保证等电位。2.各个硬件设备操作员站、工程师站、网络交换机、服务器主机、系统显示器等采用外壳接地或直接将电源地线连接至电气接地网。3.I/O组件模拟量模件的40端即直流24伏的负端接至逻辑地汇流排上,逻辑地汇流排接至屏蔽地,再接入总接地汇流排。4.屏蔽地现场控制站的保护地应从机柜下方的接地螺钉接至接地分干线,现场控制站的屏蔽地应从接地汇流排接至公共连接板。5.接地电阻测试接地系统的电阻进行测试,以保证接地能满足控制系统制造商的要求。1用电仪表的外壳、仪表盘、柜、箱、盒和电缆槽 、保护管、支架、底座等正常不带电的金属部分,由于绝缘破坏而有可能带危险电压者,均应做保护接地。对于供电电压不高于36V的就地仪表、开关等,当设计文件无特殊要求时,可不做保护接地。
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BLC382TCPUC1S LX800 1
Pt100 TO92 B,订货号32209210 100
20F11NC022JA0NNNNN 1 面价15259
150-C85NBR 1 面12346
787-1668/0000-0004 1
cacr-ju102a2a 1
5AP1130.156C-000 1
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AMP-1674320-1 40
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欧姆龙*C200HW-PRM21 5
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ALLEN BRADLEY 6170-EDCD1A1EBZZA USPP 6170EDCD1A1EBZZA
ALLEN BRADLEY 6170-EDCD1Z1EBZZ/A USPP 6170EDCD1Z1EBZZA
ALLEN BRADLEY 6170-EDD1A1EBZZ/A USPP 6170EDD1A1EBZZA
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ALLEN BRADLEY 6170-FCCF1Z1EBZZ B T70 PLANT FLOOR WORKSTATION 6170FCCF1Z1EBZZB
ALLEN BRADLEY 6170-FDCF-1A1ECZZ USPP 6170FDCF1A1ECZZ
ALLEN BRADLEY 6171-IDH NSFP 6171IDH
ALLEN BRADLEY 6171-SFB4 USPP 6171SFB4
ALLEN BRADLEY 6177R-M3PXP Series B Industrial Computer
ALLEN BRADLEY 6180-ABCBDEACAZZ USPP 6180ABCBDEACAZZ
ALLEN BRADLEY 6180-ABDBDDAZAZZ USPP 6180ABDBDDAZAZZ
Allen Bradley 6180-ABEBCBAZABZ Ind Comp 6180-ABE NIB
ALLEN BRADLEY 6180-ABEBDBACAZZ USPP 6180ABEBDBACAZZZ
ALLEN BRADLEY 6180ADADELACCZZ USPP 6180ADADELACCZZ
ALLEN BRADLEY 6180-ADDDEDAZCZZ USPP 6180ADDDEDAZCZZ
ALLEN BRADLEY 6180-ADHDELACCDZ USPP 6180ADHDELACCDZ
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ALLEN BRADLEY 6180-AEFBECACABZ SERIES A OPERATOR INTERFACE
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Allen Bradley 6180-CGIDGGDIECZ /B 6180 VersaView Touch/Keypad Color 15" Screen
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Allen Bradley 6180-CS-NV Series 1, Operator Interface Industrial Computer
ALLEN BRADLEY 6180CS-NV USPP 6180CSNV
ALLEN BRADLEY 6180-CSNV2 USPP 6180CSNV2
Allen Bradley 6180-CSNV2, Series B, Operator Interface Industrial Computer -
ALLEN BRADLEY 6180-DGCEFGAHEBZ USPP 6180DGCEFGAHEBZ
ALLEN BRADLEY 6180DHAEFGACECZ USPP 6180DHAEFGACECZ
ALLEN BRADLEY 6180-DHCEFGABEZZ B INDUSTRIAL COMPUTER WORKSTATION 6180DHCEFGABEZZ