1.卷帘可以顺畅地运行;普通卷帘门窗运行速度应小于0.5m/s;快速门的运行速度不小于0.5m/s，开门速度不小于0.8m/s，关门速度不小于0.5m/s。过快或过慢都会影响卷帘门的正常使用，同时也有一定的风险。
1. The rolling shutter can run smoothly; The running speed of ordinary rolling shutter doors and windows shall be less than 0.5m/s; The running speed of the fast door shall not be less than 0.5m/s, the opening speed shall not be less than 0.8m/s, and the closing speed shall not be less than 0.5m/s. Too fast or too slow will affect the normal use of the rolling shutter door, but also have a certain risk.
2.制动装置灵敏：分、合闸时可在任何位置停车;灵敏制动能及时停车，操作相对简单。
2. The braking device is sensitive: it can stop at any position during opening and closing; Sensitive braking can stop in time, and the operation is relatively simple.
3.限位装置灵敏：上、下限开关时自动停止，重复精度不大于10mm。
3. The limit device is sensitive: it stops automatically when the upper and lower limit switches, and the repetition accuracy is no more than 10mm.
4.开门器应具有过热保护功能;当电源电压在额定电压±10%范围内波动时，卷帘门窗能正常开启和关闭;因此，卷帘门在电压不稳定时也能正常工作。

4. The door opener shall have overheating protection function; When the power supply voltage fluctuates within ± 10% of the rated voltage, the rolling shutter doors and windows can be opened and closed normally; Therefore, the rolling shutter door can work normally when the voltage is unstable.
5.济南电动卷帘门控制箱应配备紧急停止按钮控制开关。如有危险，操作急停按钮控制开关，切断开门器电源。
5. Jinan electric rolling shutter door control box shall be equipped with emergency stop button control switch. In case of danger, operate the emergency stop button control switch to cut off the power supply of the door opener.
6.对于装有红外线保护装置的卷帘门，当红外线被阻挡或切断时，卷帘门应立即停止运行或反向运行;这也可以很好地保护卷帘门下的人员免受伤害。
6. For the rolling shutter door equipped with infrared protection device, when the infrared is blocked or cut off, the rolling shutter door shall immediately stop running or reverse running; This can also well protect the personnel under the rolling shutter door from injury.
7.快速卷帘门应配备橡胶条回弹系统，普通卷帘门可配备阻力挡块或回弹系统;对于装有阻力停止或回弹系统的卷帘门，当门体下落时，座杆上的停止或回弹系统遇到障碍物时，卷帘门应立即停止或向上运行。
7. The quick rolling shutter door shall be equipped with rubber strip rebound system, and the ordinary rolling shutter door can be equipped with resistance stop or rebound system; For the rolling shutter door equipped with resistance stop or rebound system, when the door body falls and the stop or rebound system on the seat rod encounters obstacles, the rolling shutter door shall stop or run upward immediately.
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