电动门按电机类型分为直流门和交流门，在我们的日常生活中起着决定性的作用，在使用过程中难免也会发生故障，下面就为大家介绍一下电动门常见的一些故障： According to the type of motor electric door into DC and AC door door, plays a decisive role in our daily life, in the use of the process will inevitably fails, the following is to introduce some common faults of electric door: 1、电动门不能操作：首先在操作时看DCS上是否有红色的箭头，如没有，则是DCS没有发出开关指令，发不出开关指令的原因有两个，一是状态不对，二是联锁条件不满足。如DCS上有红色的箭头而阀门不动，可到就地操作，如能操作，则DCS上指令没有到MCC柜；如MCC柜也不能操作，则检查热偶。关于过力矩：电动头的过力矩是不能自保持的，能在就地能复位，但实际上经常遇见不能复位的情况，这主要是因为过力矩太大引起的。 1, electric door can not operate in operation: first to see if there is a red arrow on the DCS, if not, it is not a DCS switch command no two switching instruction, a state is wrong, is the two interlocking condition is not satisfied. If there is a red arrow on the DCS, and the valve does not move, it can be operated locally. If it can operate, the instructions on the DCS do not go to the MCC cabinet. If the MCC cabinet is not operational, the thermocouple is checked. Over torque: the torque of the electric head can not be maintained, and it can be reset on the spot, but it often happens that it can not be reset. This is mainly due to excessive torque. 2、阀门状态不对：DCS状态与就地MCC柜状态是取自不同的微动开关，调整时，这一对微动开是同时动作的。如出现这种故障，先到MCC柜查看状态是否对，如MCC状态对，则有两方面的原因：一是热工信号不对，如热工保险坏，接线松等，二是微动开关、计数器坏等。如MCC状态也不对，则有两方面的原因：一是微动开关、计数器坏；二是阀门确实没到位，阀门没到位有两方面的原因，一是过力矩，二是热偶动作，复位后再试。 2, valve status is wrong: DCS state and in place MCC cabinet state is taken from different micro switch, when adjustment, this pair of micro opening is simultaneous action. As a result of this failure, the first to view the status of the MCC cabinet, such as MCC on, there are two reasons: one is the thermal signal is wrong, such as thermal insurance bad, loose connection, micro switch, counter two is bad. If MCC is not right, there are two reasons: one is the micro switch, counter two is bad; the valve does not in place, the valve is not in place there are two reasons, one is the torque is two thermocouple action, reset and try again. 3、过力矩：大多是因为阀门机械太沉引起，首选到就地MCC柜上复位过力矩灯，如能复位，可打到就地电动把阀门操作到位，如在操作时再次过力矩，则要到阀门处用手动操作，看看是否太沉；如过力矩不能复位，同样要到阀门处用手动操作，看看是否太沉。如手动操作过沉，则是机械故障。 3, mostly because of mechanical valve torque is too heavy, preferred to local MCC cabinet reset torque lamp, such as reset, can be put in local electric valve operation in place, such as the moment again in the operation, to the valve with manual operation, see if too heavy; if a moment cannot reset, also to the valve with manual operation, see if too heavy. If manual operation is excessive, it is mechanical failure.