Reasons and solutions for the failure of the whole electric single-beam crane to start

The failure of the electric single-girder crane to start is a failure that may be encountered in production. Through analysis by technicians, the cause may be caused by power supply problems. The editor of our factory has sorted out several possible causes and solutions for you:

1.  The power supply is not closed or the power supply lacks phase
2.  Poor contact of current collector
3.  The phase continuous relay works, making the mechanism unable to operate normally
4.  Poor contact of emergency stop switch
5.  The contactor cannot complete self-locking
6.  There is a break in the control circuit

Phương pháp khắc phục sự cố:

1.  Check whether the power supply is closed and there are few phases
2.  Check or replace the current collector
3.  Exchange any two phases in the power supply
4.  Check whether the emergency stop switch is in good condition and the wireless head is loose
5.  Check whether the self-locking circuit is normal
6.  Replace the control line

Trouble problem: The electric single-beam crane cannot start the cart and the trolley, and the cart still runs in the limit direction after the limit.

Cause of issue:

1.  There is a problem with the control circuit of the big car and the small car
2.  The cart control limit line is connected reversely

Giải pháp

1.  Check the control circuit of the cart and the cart
2.  Exchange the limit control line of the cart

When the electric single-girder crane encounters a failure, it is necessary to find the correct solution according to the reason, eliminate the failure in time, and reduce the impact on the production of the enterprise.