Crane circuit safety requirements

1) Control circuit. The crane control circuit should ensure that the control performance meets the requirements of the mechanical and electrical system, and there should be no wrong circuits, parasitic circuits and false circuits.

2) Remote control circuit and automatic control circuit. Any mechanism controlled by the remote control circuit and the automatic control circuit should automatically stop working once the control fails.

3) Lifting electromagnet circuit.

On AC cranes, the lifting electromagnet should be equipped with a dedicated DC power supply system, and there should be a backup power supply when necessary.