Now is the era of industry, we often around Dongguan CNC processing, so when Xiaobian said, I feel very familiar. CNC machining center in the process of work, if there is a power failure to solve the situation, CNC machining center unit power supply has two lights, one is the power indicator, is green; the other is the power alarm light, is red, the power unit here, including power input unit and power control part.
First of all, we should know that if the power supply of CNC machining center cannot be connected, if the power indicator (green) is not on. The fuses F1 and F2 of the power supply unit have been blown. This is due to high input voltage, or the components of the power supply unit itself have been damaged.
The input voltage of CNC machining center is low. Please check the voltage entering the power supply unit. The allowable voltage value is AC 200V + 10%, 50 Hz ± 1Hz. The power supply unit is not good, there is element damage in it. The power indicator light is on, and the alarm light is also gone, but the power supply cannot be connected. This is because the power on condition is not satisfied. By the following switching circuit, the power supply conditions are as follows:
CNC machining center power supply has three conditions: the first point, the source on button closed. Second, the power off button is closed. Third, the external alarm contact is opened.
The alarm light of power supply unit of CNC machining center is on: the fuse of 24 V output voltage is fused, and + 24 V voltage is used on 1.9 “display screen. Check whether + 24 V is short circuited to the ground. 2. The display / manual data input board is poor.
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