GE IS220PDIIH1B MARK VIE控制器欧美工业设备

GE IS220PDIIH1B MARK VIE控制器欧美工业设备

（1） 直接判断法：IS220PDIIH1B 控制器根据故障现象，范围、特点以及故障发生的记录直接分析判断产生的原因和故障部位，查出故障。

（2） 外部检查法：对一些明显的有外部特征的故障，通过外部检查，判断故障部位，如插头松动、断线、碰线、短路、元件发热烧坏、虚焊、脱焊等。有的故障，特别是暂时性故障，可以通过人为摇动，敲击来发现故障。

（3） 替换对比法：对有怀疑的故障部件，用备件或同样的插卡或模块进行替换，或相互比较，但要注意，替换前，要先分析排除一些危害性故障，如电源异常、负载短路等引起元件损坏的故障，若不先排除，则替换上的插件或模块会继续损坏。

（4） 分段查找法：当故障范围及原因不明时，可对故障相关的部件、线路进行分段，逐段分析检查、测试和替换。

（5） 隔离法：可以分段查找法相配合，将某些部位或线路暂时断开，观察故障现象变化情况，逐步缩小怀疑对象，终查出故障部位，进行处理或更换。

(1) Direct judgment method: The IS220PDIIH1B controller directly analyzes and determines the cause and fault location according to the fault phenomenon, scope, characteristics and fault occurrence records, and detects the fault.

(2) External inspection method: For some obvious faults with external characteristics, through external inspection, determine the fault location, such as loose plug, broken wire, wire collision, short circuit, component heating and burning, virtual welding, de-welding, etc. Some faults, especially temporary faults, can be found by artificial shaking and knocking.

(3) Replacement comparison method: For suspected faulty parts, replace them with spare parts or the same card or module, or compare them with each other, but it should be noted that before replacement, analyze and eliminate some harmful faults, such as abnormal power supply, load short circuit and other failures that cause component damage, if not eliminated first, the plug-in or module on the replacement will continue to be damaged.

(4) Segment search method: When the fault scope and cause are unknown, the fault-related components and lines can be segmented, analyzed, tested and replaced segment by segment.

(5) Isolation method: you can cooperate with the segmented search method, temporarily disconnect some parts or lines, observe the changes in the fault phenomenon, gradually reduce the suspected object, and finally find out the fault part for processing or replacement.