PW302 YOKOGAWA

Avtron M6-4S1HX51ZTZ00
EMERSON 1C31233G04
EMERSON 1C31238H01
EME9361-EFS21002-05-07
EUROTHERM G448-0002

分类: 标签:

Description

接地系统混乱对PLC系统的干扰主要是各个接地点电位分布不均,不同接地点间存在地电位差,引起地环路电流,影响系统正常工作。例如电缆屏蔽层必须一点接地,如果电缆屏蔽层两端A、B都接地,就存在地电位差,有电流流过屏蔽层,当发生异常状态如雷击时,地线电流将更大。

Cisco IGX-UFM-8C Universal Frame relay Mo 8port Chan
90 Day Warranty – Free Overnight Shipping!

Cisco 15454-OC48IR131​0 1310NM OC48 15454-OC48-IR13​10
90 Day Warranty – Free Shipping!

Redstone (Unisphere Juniper) ERX 1400 RX1400 T3 ATM OC3
90 Day Hardware Warranty – Free Shipping