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3G5A2-OC221-PE 参数 Datasheet PDF下载

3G5A2-OC221-PE图片预览
型号: 3G5A2-OC221-PE
PDF下载: 下载PDF文件 查看货源
内容描述: 可编程控制器 [Programmable Controllers]
分类和应用: 控制器
文件页数/大小: 182 页 / 1513 K
品牌: OMRON [ OMRON ELECTRONICS LLC ]
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Error Processing and Correction  
Section 5-3  
5-3 Error Processing and Correction  
CPU Rack/Expansion CPU Rack/Expansion I/O Rack  
Symptom  
Cause  
Remedy  
POWER indicator is unlit.  
RUN indicator is unlit.  
PCB short-circuited or damaged by heat.  
(1) START input terminals are OFF.  
(2) Error in program.  
Replace Power Supply Unit or Backplane.  
Short-circuit START input terminals.  
Correct program  
(3) Power line is faulty.  
Replace Power Supply Unit.  
Replace Power Supply Unit.  
RUN output does not  
turn ON.  
Internal circuitry of  
Power Supply Unit is faulty.  
RUN indicator lit.  
Link Unit or CPU Bus Unit  
does not operate or malfunc-  
tions.  
(1) CPU cable is faulty.  
(2) CPU bus is faulty.  
(3) Expansion CPU Rack is faulty.  
I/O bus faulty.  
Replace CPU cable.  
Replace Backplane.  
Replace I/O Control or I/O Interface Unit.  
Replace Backplane.  
Bit does not operate.  
Error occurs in units of 8  
points.  
(1) I/O cable is faulty.  
(2) I/O bus is faulty.  
Replace I/O cable.  
Replace Backplane.  
(3) Expansion I/O Rack is faulty.  
I/O bus is faulty.  
Replace I/O Control or I/O Interface Unit.  
Replace Backplane.  
I/O bit turns ON  
All bits for one Unit do not  
turn ON.  
I/O bus is faulty.  
Replace Backplane.  
92  
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