1788-CNC AB 半导体电路

SAIA PCD2W410
TOSHIBA DI334
SCHNEIDER 140ACI04000
A-B 1747-ASB
GE MWB90-2
ABB SDCS-PIN-51
Emerson UNI1405
ABB SDCS-PIN-51
PHOENIX MCR-PSP-DC
AB 1756-OF8
A-B 1756-CNB/E
A-B 1756-L61
MKS 839-13521-1
schneider AS-P810-000

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Description

由于电器控制系统使用了大量的机械触点,其存在机械磨损、电弧烧伤等,寿命短,系统的连线多,所以可靠性和可维护性较差。而PLC大量的开关动作由无触点的半导体电路来完成,其寿命长、可靠性高,PLC还具有自诊断功能,能查出自身的故障

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