Two methods to solve the problem that the fast door can only go up but not down

     1. Reason: Infrared photoelectricity is too sensitive, and the door starts to rise before it stops falling, which causes excessive current and leads to failure.

     Solution: Enter the manufacturer's parameters, increase the commutation delay parameter appropriately, and then increase the acceleration time to solve the problem.

     2. Reason: When the door runs to the bottom, the output torque of the motor is lower, resulting in the door not closing properly

     Solution: Enter the manufacturer's parameters, reduce, and lower the buffer distance

      The safety system of the fast door is the protector of daily use. Timely detection can avoid accidents. If the enterprise encounters a problem that cannot be solved by itself, it needs to find the original manufacturer to apply for after-sales treatment. It is not recommended to continue to use it within this period, and the door should be completely disconnected. Put a warning sign in front of the door, and wait until normal conditions are restored before using it again.