YOKOGAWA AAI143-S00
该红色LED灯亮时,说明PLC内的锂电池寿命已经快结束了,则需要尽快更换新的锂电池,以免PLC内的程序自动消失。如果更换新的锂电池后,该LED灯仍然亮着,则可能是CPU板存在故障。
POWER灯呈闪烁状态
如果POWER灯呈闪烁状态,则可能是24+端子与COM端子短路。这时,需要将24+端子的配线拔出。如果指示灯正常,则需要检查线路。如果指示灯依然闪烁,则可能需要检查PLC内的电源板。
PROG•EED灯闪烁
该红色LED灯闪时,可能是程序回路不合理的情况、参数设定出错、存在干扰导等。可以使用掌上型书写器FX-20P-E检查D8004,然后根据D8004的内容检查D8060~D8069。
面板上POWER灯不亮
1)主机、I/O扩充机座、I/O扩充模组、特殊模组正面均有POWERLED指示灯。
2)主机通上电源时,LED的绿色灯亮。如果主机通上电源后,该指示灯不亮,这时,需要将24+端子的配线拔出。如果指示灯正常亮起,表示FX2的DC负载过大,则不要使用FX2的24+端子的DC电源,而要采用另行的DC24V电源供应器。如果将24+端子的配线拔出后,指示灯仍然不亮,则可能是PLC内部熔丝烧断,则需要更换熔丝并检查熔丝熔断的原因。
FX1N-60MR-001通电后ERR灯闪烁,输入X0灯常亮
ERR灯闪烁可能是用户程序丢失导致,于是联机三菱plc编程软件发现程序紊乱。执行内部清除命令,并重新传送程序。再把PLC通电,结果POWER灯亮、RUN灯亮、ERR灯不亮、X0输入亮。于是检查X0线路,发现X0对应的光耦后级连接点的PCB走线与大面积覆铜地线间存在脏污,再经过清洗后通电试机,一切正常。
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1SAP250300R0001 AI523 AI523B4 ABB Advant
1SBP260001R1001 86AR230 ABB Advant
1SBP260010R1001 07KR51 07KR51-U3.6 ABB Advant
1SBP260011R1001 07 KR 51-P30; 07 KR 51-F12 ABB Advant
1SBP260012R1001 07KT51 07KT51-U3.6 ABB Advant
1SBP260014R1001 07KR51-A3.6 ABB Advant
1SBP260021R1001 07CR41-c12 ABB Advant
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