What does overcurrent mean? What are the phenomena of overcurrent in the melting machine?
Gold melting machine, have you seen it! Have you ever encountered the overcurrent situation of the gold melting machine when using the gold melting machine? What does overcurrent mean? What are the phenomena of overcurrent in the melting machine? The following is the introduction to you by Kehua. 1. What does overcurrent mean? Overcurrent means overcurrent. Many electronic devices have a rated current, which is not allowed to exceed the rated current, otherwise it will burn out the device. Therefore, some devices have made a current protection module. When the current exceeds the set current, the device will automatically power off to protect the device. The overcurrent of the melting machine is because the current flowing through the melting machine is too large and exceeds the rated current. Gold melting machine 2. What are the phenomena of overcurrent of the gold melting machine? (1) When restarting, it will trip as soon as the speed rises. This is a very serious phenomenon of overcurrent of the gold melting machine. It is mainly caused by the phenomenon of load short circuit, stuck mechanical parts, damaged inverter module, and too small torque of the motor; (2) It jumps when power is on, and this phenomenon generally cannot be reset. The main reasons are: the module is broken, The drive circuit is broken, and the current detection circuit is broken; (3) When restarting, it does not trip immediately but during acceleration. The main reasons are: the acceleration time setting is too short, the current upper limit setting is too small, and the torque compensation (V/F) setting is too short. Set higher. In order to protect the gold melting machine from being burned in the case of overcurrent, the circuit of the gold melting machine is equipped with an overcurrent protection device. The overcurrent protection of the gold melting machine includes short circuit protection, overload protection (overload protection) and phase failure protection. Overcurrent protection is mainly used to protect the inverter. Therefore, once the overcurrent occurs in the melting machine, the inverter alarm becomes frequent. In order to make the overcurrent protection device of the melting machine play its due protective role, the rated current of the fuse should be reasonably selected, and the action value of the relay should be selected and adjusted. Gold melting machine What does overcurrent mean? After reading the content brought by Kehua above, I believe everyone understands it. The phenomenon and treatment method of overcurrent of the gold melting machine have been told to everyone. If you encounter these situations during the operation in the future, you can deal with them well.