EI803F由山西润盛进出口有限责任公司销售
如果负载发生短路,很容易烧坏PLC,因此与继电器控制线路一样,在负载回路中要装熔断器。
2)感性输入/输出的处理
I/O端口接有感性元件时:
a)对直流电路,应在两端并联续流二极管,如图(a);
通常续流二极管可选择1A的管子,额定电压应大于电源电压的3倍
b)对交流电路,应并联阻容电路,以抑制电路断开时产生的电弧对PLC的影响,如图(b)。
电阻可取50~120Ω,电容取0.1~0.47μF,电容的额定电压应大于电源峰值电压。
MBI 2Y000923-1 27-2A W-OM0753901
DSBD 2Y000460-3
5 WIEDEMANN OVAL/OBROUND PUNCH & DIE SETS .472X2.362 THRU 1.250X2.312

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