防火卷帘门常见故障要注意什么？

1. The fireproof rolling shutter door does not work: first check the power supply to see whether the power supply air switch of the fireproof rolling shutter door is powered on. If there is no power supply, check the power part of the wire. If there is power, the power indicator of the roller shutter control box shall be green and always on. If the indicator light is not on, check whether the transformer in the control box (transformer resistance is 270 ohms) is burnt out. If the power indicator flashes green, it indicates that the phase of the power supply may be missing. If the power supply is not lost, the standby power board of the control box may be burned out; It may also be that both the live power board and the standby power board are burned out.

2、 电源空气开关不能推动：当开关发送时，空气开关不能推动。，检查备用板是否有问题。备用板输出线的电阻约为300欧姆。断路或短路时，检查电机制动点是否烧坏，或检查备用板是否烧坏。

2. Power supply air switch cannot be pushed: when the switch is sent, the air switch cannot be pushed. First, check whether there is a problem with the spare board. The resistance of the spare board output line is approximately 300 ohms. In case of open circuit or short circuit, check whether the motor braking point is burnt out, or check whether the spare board is burnt out.

3、 操作按钮不正常：先按停止键，再按复位键，再按上下键。

3. The operation button is abnormal: first press the stop key, then press the reset key, and then press the up and down keys.

4、 电源控制箱或按钮面板上的指示灯全部亮起：此时，检查按钮线路是否短路或按钮是否被压坏。如果不存在上述现象，则可能是电源主板上的芯片损坏。此时，更换芯片。注意反向修整(即从开口到开口)。

4. All indicators on the power control box or button panel are on: at this time, check whether the button circuit is short circuited or whether the button is crushed. If the above phenomenon does not exist, the chip on the power supply motherboard may be damaged. At this time, replace the chip. Pay attention to reverse trimming (i.e. from opening to opening).

5、按钮操作只有向上或向下：此时，检查限位线是否下降。否则，主电源板可能会损坏。

5. Button operation is only up or down: at this time, check whether the limit line drops. Otherwise, the main power board may be damaged.

6、 操作按钮不易使用或按下任何按钮都向下：检查主板与备用板之间的连接电缆是否松动。

6. The operation button is not easy to use or press any button downward: first check whether the connecting cable between the main board and the standby board is loose.

7、 增加锁定控制：只需将大约1K的电阻串联在扁平线第5和第12的空气上即可。

7. Add locking control: just connect a resistance of about 1K in series to the air of the 5th and 12th flat lines.

8、 判断电机好坏：电机三相电阻47-70欧姆，三相平衡。三相不平衡可能是由电机故障引起的。

8. Judge whether the motor is good or bad: the three-phase resistance of the motor is 47-70 ohms and the three-phase is balanced. The three-phase imbalance may be caused by motor failure.

9、 防火卷帘门报警时，防火卷帘门应先自动降到底，途中不要按任何按钮，然后再上升。

9. When the fire rolling shutter door gives an alarm, the fire rolling shutter door shall automatically lower to the bottom first, and do not press any button on the way, and then rise again.

10、 防火卷帘门安装调试：安装调试前，检查控制器、按钮盒、卷帘机、行程开关、电刹车等连接线是否正常，确认无误后进行调试。

10. Installation and commissioning of fireproof rolling shutter door: before installation and commissioning, check whether the connecting wires such as controller, button box, rolling shutter machine, travel switch and electric brake are normal, and conduct commissioning after confirmation.

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