Construction lifts are also called construction elevators. They are indispensable equipment for vertical lifting and carrying people and goods in modern buildings. The electrical system of construction lifts is very important to the equipment itself. Today I will give you a summary of how to manage construction lifts well. The electrical system method, I hope it will be helpful to you. The electrical system of the lift must be managed by professional electrical staff. Commonly used tools are available, such as multimeters, clamp ammeters, etc.
When an electrical fault occurs, you should first consult the electrical schematic diagram, which reflects the structure and function of the electrical equipment.
Check whether the voltage of the power supply is normal.
After the isolating switch and limit switch are turned on, check whether the incoming voltage of the electrical control box cable is normal. If the indicator light of the phase failure and phase sequence protector does not light up, it means that the power phase sequence is connected incorrectly. You can change the phase of the power cord and the indicator light will light up.
When the elevator is not running, ensure that the thermal relay, safety device micro switch, cage door limit switch, control circuit air switch, etc. are closed, the emergency stop button is not pressed, and the main contactor should be closed.
Check whether the switch signal that controls the up and down movement of the cage can smoothly reach the upper electrical control box and whether the upper and lower stroke limit switch signals can smoothly reach the upper electrical control box and whether it can automatically reset after being moved by hand.
When the lift is tested for up and down operation, make sure the motor brake is fully open.
Common faults and analysis of electrical systems, and more exciting construction lift knowledge, please pay attention. Beijing Jiuhong Heavy Industry specializes in the production of construction lifts and construction elevators. We look forward to your visit and guidance
News