型號
:葫蘆島2098-DSD-HV030 AB伺服驅(qū)動器 羅克韋爾生產(chǎn)廠家
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV220X-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV220-SE
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV150
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV100-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV050X-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV050X
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV050-SE
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV030X-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV030X
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV030-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-HV030
Allen Bradley 伺服驅(qū)動器 2098-DSD-150-SE
Allen Bradley 伺服驅(qū)動器 2098-DSD-075X
Allen Bradley 伺服驅(qū)動器 2098-DSD-075-SE
Allen Bradley 伺服驅(qū)動器 2098-DSD-075
Allen Bradley 伺服驅(qū)動器 2098-DSD-030X-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-030X
Allen Bradley 伺服驅(qū)動器 2098-DSD-030-SE
Allen Bradley 伺服驅(qū)動器 2098-DSD-030
Allen Bradley 伺服驅(qū)動器 2098-DSD-020X-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-020-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-020
Allen Bradley 伺服驅(qū)動器 2098-DSD-010X
Allen Bradley 伺服驅(qū)動器 2098-DSD-010
Allen Bradley 伺服驅(qū)動器 2098-DSD-005X-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-005X
Allen Bradley 伺服驅(qū)動器 2098-DSD-005-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-005
ALLEN BRADLEY 伺服驅(qū)動器 2098-DSD-010X-DN
Allen Bradley 伺服驅(qū)動器 2098-DSD-020X
ALLEN BRADLEY 伺服驅(qū)動器 2098-DSD-HV150-SE
ALLEN BRADLEY 伺服驅(qū)動器 2098-DSD-HV100-SE
ALLEN BRADLEY 伺服驅(qū)動器 2098-DSD-005-SE
ALLEN BRADLEY 伺服驅(qū)動器 2098-DSD-HV030-SE
ALLEN BRADLEY 伺服驅(qū)動器 2098-DSD-020-SE
ALLEN BRADLEY 伺服驅(qū)動器 2098-DSD-010-SE
:葫蘆島2098-DSD-HV030 AB伺服驅(qū)動器 羅克韋爾生產(chǎn)廠家兩線制與四線制互改從上述可知各種線制變送器都能存在,那總是有存在的理由,否則就不會有那么多的線制了,由用戶來改動線制是很困難的,再者實際意義也不大。如果要把傳輸信號為0-10mA.DC的四線制變送器改為兩線制,首先遇到的,就是其起始電流為零,在電流為零狀態(tài)下,變送器的電子放大器是無法建立工作點的,因此將難于正常工作。如果用直流電源,并保證儀表原來的恒流特性,當變送器在負載電阻為0-1.5KΩ時,與其串聯(lián)的反饋動圈電阻2KΩ左右,當輸出為10mA時,這兩部分的電壓降將大于24V,也就是說用24V.DC供電,負載為0-1.5KΩ時,要保證恒流特性是不可能的,也就談不上用兩線制傳輸了。
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