The function of crane relay

Crane relay is an electronic control device that has a control system and a controlled system, typically used to control and protect electric motors or electrical equipment. As a commonly used crane accessory, the crane relay plays a role in safety protection, automatic control, logic control, and measurement inspection in the circuit. Let's give a detailed introduction below.
1. Security protection function
During the operation of the crane, overload, short circuit, undervoltage, overvoltage and other situations may occur, which can pose a threat to the equipment and operators. And the crane relay can act in a timely manner when these situations occur, cutting off the circuit or generating alarm signals to protect equipment and personnel safety.

2. Automatic control function
Cranes need to perform various actions during operation, such as lifting, moving, rotating, etc. And these actions require a certain sequence and timing control, and relays can achieve automatic control of these actions. For example, by using crane relays, the lifting and lowering speed of the crane can be automatically controlled, thereby achieving more accurate operation.

3. Logical control function
Crane relays can achieve logical control, which means they can perform different operational functions based on different combinations of input signals. For example, multiple relays can be used to achieve multi gear control of the crane, thereby controlling parameters such as different lifting weights and heights.

4. Measurement and inspection function
Crane relays can measure and check parameters such as voltage and current in the circuit. For example, by using crane relays, faults in the circuit can be detected and timely alarms or actions can be issued to protect equipment and personnel safety.