出售机的告警铃响了,引起告警的原因很多,不易马上区别。为迅速排除故障,需抓住各种告警的不同特点,在观察分析各种现象的基础上,区别告警原因,并加以处理。我们以邮票出售机为例,介绍几种由较简单的原因引起告警的现象。 Sale machine alarm rang, causing a lot of reasons for the alarm, not easy to distinguish immediately. In order to quickly eliminate the fault, it is necessary to seize the different characteristics of various alarms and to distinguish the cause of the alarm and deal with it on the basis of observing and analyzing various phenomena. We take the stamp vending machine as an example, introducing several phenomena that are caused by simpler reasons.