Signal isolator

The signal isolator belongs to a speed regulating drive system, which uses the frequency conversion drive technology to change the amplitude and frequency of the operating voltage of the AC motor, so as to control the speed and torque of the AC motor smoothly. Daily maintenance and repair work is more important. So what are the requirements of the signal isolator for the use environment? Follow the signal isolator manufacturers to understand it.

The operator should be familiar with the basic working principle and functional characteristics of the signal isolator, and have the basic knowledge of electrical operation. Before checking and maintaining the signal isolator, be sure to cut off the main power supply of the equipment and wait for the signal isolator light to be completely extinguished.

Before the signal isolator is powered on, check the humidity and temperature of the surrounding environment, if the temperature is high, it will cause the signal isolator to overheat alarm. Serious will directly cause the inverter power supply device damage and short circuit. Too wet air will lead to a direct short circuit inside the signal isolator. When the signal isolator is running, pay attention to whether the cooling system is normal, such as whether the air duct exhaust is smooth and whether the fan is abnormal. Generally, inverters with higher protection levels, such as inverters above IP20, can be directly installed in the open air, and inverters below IP20 should be installed in the cabinet, so the heat dissipation effect of the inverter cabinet will directly affect the normal operation of the inverter, the exhaust system of the signal isolator, such as whether the fan rotates smoothly, whether the air inlet has dust and blockage, which are in our daily inspection Are not to be ignored, motor reactors and transformers are overheated, there is no odor; Whether the signal isolator and the motor have abnormal noise; Whether the current display of the signal isolator panel is large or the current changes are large, and whether the output UVW three-phase voltage and current are balanced.

This is the introduction of the signal isolator manufacturers here, I hope to help you. If you have any questions, you can contact us directly.