First, the iron core may not be able to suction power
Causes: The power supply voltage is too low or fluctuates too much, the power supply capacity of the operating circuit is lacking or the wire is broken and the control contact is poor, the technical parameters of the coil are inconsistent with the application conditions, and the product itself is damaged.
Solution: Increase the power supply voltage, add power supply capacity, replace the line, repair the auxiliary contact, replace the contactor coil or contactor, and sweep away the stuck problem.
Second, the contact of the AC contactor may be slow to release
Causes: The contactor contacts are burned, the mechanical suction part is stuck, and there is oil or dust on the pole surface of the core.
Solution: Check whether the contactor contact is burned, if the contact is burned, replace the contact, and check whether there is a foreign object on the pole surface of the core.
3. The AC contactor coil may be burned if it is overheated
Causes: The contactor contacts are burned, the mechanical suction part is stuck, and there is oil or dust on the pole surface of the core.
Solution: Check whether the contactor contact is burned, if the contact is burned, replace the contact, and check whether there is a foreign object on the pole surface of the core.
Fourth, the electromagnet of the contactor is noisy (AC voltage)
Delixi AC contactor CDC10 iron core polar surface
Causes: The power supply voltage is too low, the magnetic system is skewed or the mechanical part is stuck, so that the core can not be flattened, the core is rusty or has foreign matter, the short-circuit ring is cracked or the core is worn.
Solution: Improve the operating circuit voltage, adjust the magnetic system, check whether there is a foreign body in the core, and replace the core if there is a foreign body.
5. Contactor contact melting
Reason: The operating frequency is too high or the product is overloaded, and the load line is short-circuited.
Solution: Replace the AC contactor with higher power to eliminate the short circuit problem.
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Normal conditions of operation, installation, and transportation
1 Normal operating conditions
Appliances that meet the rules of this code should be able to operate under the following conditions.
Note: See Appendix B for the requirements of non-standard application conditions.
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