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How to deal with when the high speed door broken?

2019-05-22

How to deal with when the High Speed Door broken?


1. Problem: Press the quick door Control Box to run the button or remote control button, the motor does not work and does not rotate.

The cause and solution of the problem:

(1) The operation mode setting is incorrect, check if P102 is set to 1;

(2) The frequency command is not given or the frequency is given less than the starting frequency;

(3) The peripheral wiring is wrong, check the peripheral wiring;

(4) The input terminal of the inverter is incorrectly defined and does not correspond to the peripheral wiring. Check the parameters of P315-P322.

(5) The start button is faulty, the control line is broken, and the control line and button are checked;

(6) The inverter is in the protection state, there is no reset, reset first, then start;

(7) The motor line is not connected or missing, check the motor connection;

(8) Motor failure, check if the motor is faulty;

(9) The inverter is faulty and it is checked whether the inverter is faulty.

Cold storage dedicated fast door

2. Problem: The fast door servo motor is overheated

The cause and solution of the problem:

(1) The ambient temperature is high, please improve the ambient ventilation conditions and reduce the ambient temperature;

(2) If the load is too large, the actual load has exceeded the rated torque of the motor, and the motor power or capacity should be increased;

(3) The motor insulation is lowered and the motor is replaced;

(4) The distance between the inverter and the motor is long. Please reduce the distance and install an AC reactor.

(5) Insufficient voltage between the phases of the motor, the switching action of the inverter will cause a surge voltage between the winding coils of the motor group. Usually, the maximum surge voltage will reach 3 times the input power supply voltage of the inverter. It is recommended to use a special motor;

(6) The motor runs at a low speed state, and the reduction ratio is improved to make the motor run at a higher speed;

Fast door servo sej motor

3. Problem: The fast rolling door machinery has vibration or abnormal noise.

The cause and solution of the problem:

(1) The machine is stuck or poorly lubricated, and the mechanical load is checked;

(2) The machine has resonance phenomenon, adjust the carrier, change the reduction ratio, avoid the resonance frequency, and install the vibration damping pad;


Pvc High Speed Green


4. Problem: The motor cannot run in reverse

The cause and solution of the problem:

(1) The reversal is prohibited, and the reversal is prohibited.

5. Problem: The motor runs in the opposite direction

The cause and solution of the problem:

(1) Relatively adjust the inverter output terminal U/V/W;

(2) The operation control signal is reversed. If the original setting is forward, it can be set to reverse;

6, the problem: the inverter starts, interfere with other devices

The cause and solution of the problem:

(1) reducing the carrier frequency;

(2) Add a load filter to the power input of the inverter;

(3) Add a load filter to the power output side of the inverter;

(4) The inverter and motor are properly grounded;

(5) The main return line is separated from other signal lines;

(6) The control line is shielded and the cable is covered with a metal tube;

(7) On the line side, the outlet system is equipped with a magnetic ring.
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