防火卷帘门，是消防维保的朋友们经常需要测试的设备之一，遇到各种各样的故障是很正常的。下面根据我十多年的经验，给大家做以下内容的总结。

　　Fireproof rolling shutter doors are one of the equipment that fire maintenance friends often need to test, and it is normal to encounter various malfunctions. Based on my over ten years of experience, I would like to summarize the following content for everyone.

　　一、卷帘门常遇到哪些故障

　　1、 What are the common faults encountered by rolling shutter doors

　　卷帘门控制器故障指示灯亮

　　The fault indicator light of the rolling shutter door controller is on

　　卷帘门的故障指示灯亮起，是控制主板检测到了非正常的情况。现在的主板功能都在不断完善。遇到这种情况，可以分析以下几种情况：

　　The malfunction indicator light of the rolling shutter door is on, indicating that the control motherboard has detected an abnormal situation. Nowadays, the functions of motherboards are constantly improving. In this situation, the following situations can be analyzed:

　　a：卷帘门主电源故障，比如说，缺相／错相／欠压／过压，可以使用万用表测量一下电源信号即可；

　　a: The main power supply of the rolling shutter door is faulty, such as phase loss/wrong phase/undervoltage/overvoltage. You can use a multimeter to measure the power signal;

　　b：备用电池故障，常见的就是电池无法充电导致欠压。

　　b: Backup battery failure is commonly caused by undervoltage due to the inability to charge the battery.

　　c：主板供电电源故障，这种情况是因为控制箱内的变压器损坏，无法提供正常的电源信号（通常电压在15V左右，因主板不同，有所差异）。

　　c: The power supply failure of the motherboard is due to the damage of the transformer inside the control box, which cannot provide normal power signals (usually the voltage is around 15V, which varies depending on the motherboard brand).

　　d：卷帘门检测不到限位信号。在主板上会有06个LED灯，显示卷帘门处于上限或是下限。

　　d: The rolling shutter door cannot detect the limit signal. There will be 2 LED lights on the motherboard, indicating whether the rolling shutter door is at the upper or lower limit.

　　遇到故障指示灯亮起，大家可以参考上面的几种情况逐一排查即可。

　　When the fault indicator light comes on, you can refer to the above situations to troubleshoot one by one.

　　2、卷帘门远程控制按钮无法提升卷帘（只能下降）

　　2. The remote control button of the rolling shutter door cannot lift the rolling shutter (it can only be lowered)

　　这种情况，通常是因为没有主电源引起的，而且卷帘下降速度会很快（凭自重降落）。备用电池的作用就是在没有主电源的情况下，接收到远程控制盒的信号（任意按钮都可以），打开电磁抱闸（就像汽车的手刹），卷帘在自身重力下下降。

　　This situation is usually caused by the lack of a main power source, and the rolling shutter descends quickly (by its own weight). The function of the backup battery is to receive a signal from the remote control box (any button can be pressed) in the absence of a main power source, open the electromagnetic brake (like a car handbrake), and the roller blind will descend under its own gravity.

　　3、远程控制按钮无法操作卷帘（注意不同于上个问题）

　　3. The remote control button cannot operate the roller blind (note different from the previous issue)

　　这种情况，可能的原因是按钮损坏或是卷帘检测不到正确的限位开关。可以通过主板上限位指示灯来判断一下。

　　The possible reason for this situation is that the button is damaged or the roller blind cannot detect the correct limit switch. You can judge it by the upper limit indicator light on the motherboard.

　　大家也可以关注我的《消防工作笔记》，更详细的了解这方面内容。

　　You can also follow my 'Fire Work Notes' to learn more about this aspect in detail.

　　二、维保人员更换卷帘门控制主板／控制器，需要怎么操作。

　　2、 How do maintenance personnel replace the control board/controller of the rolling shutter door.

　　有两方面内容是需要注意的，一是远程控制按钮是否匹配，二是电机的安装方向设置（左安装还是右安装）。

　　There are two aspects to pay attention to, one is whether the remote control button matches, and the other is the installation direction setting of the motor (left or right installation).

　　更换步骤如下：

　　The replacement steps are as follows:

　　1、将卷帘门下降半米左右（可以使用温控释放装置，或者拉链来使卷帘下降）。

　　1. Lower the roller shutter door by about half a meter (you can use a temperature controlled release device or a zipper to lower the roller shutter).

　　2、更换完成主板，送电，打开控制器，点动卷帘下降的按钮，观察卷帘运行方向。若卷帘下降，则说明电机安装方向设置正确，反之，则调整主板的拨码开关。（选择左安装或是右安装）

　　2. Replace the motherboard, power on, turn on the controller, press the button to lower the roller shutter, and observe the direction of the roller shutter operation. If the roller blind descends, it indicates that the motor installation direction is set correctly. Otherwise, adjust the dip switch on the motherboard. (Choose left or right installation)

　　3、根据主板的调试说明，设置卷帘是一步降落或是二步降落（有些卷帘不需要进行此操作）。

　　3. According to the debugging instructions of the motherboard, setting the roller shutter is either a one-step descent or a two-step descent (some roller shutters do not require this operation).

　　4、远程控制按钮的更换。卷帘的远程控制按钮，目前有两种：多线形式和模拟量形式。多线形式，很好理解，就是线多，每个按钮都对应一根线（有公共线）。模拟量形式，通常是3根线。注意，这两种按钮是不可以替换，必须与主板对应。

　　4. Replacement of remote control buttons. There are currently two types of remote control buttons for roller blinds: multi line form and analog form. Multi line form, easy to understand, means there are multiple lines, and each button corresponds to a line (with a common line). Analog form, usually consisting of 3 wires. Note that these two buttons cannot be replaced and must correspond to the motherboard.

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