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CON2各个端口参考数据见表9所示表9CON2各端口数据参考值。②由于各个保护是独立的,故对于维修时区分故障部位很有利,因为24V、12V有电压输出,表明负载没有明显的短路故障,所以将RS55断开,检查机器是否还是保护状态。开机测试QS2的基极电压为0V,24V、12V输出正常,可以判断保护性关机是由于保
CON2 each port reference data shown in Table 9 Table 9CON2 each port data reference value. ② Since each protection is independent, it is very beneficial to distinguish the faulty parts for maintenance. Because the voltage is 24V and 12V, it indicates that there is no obvious short-circuit fault in the load. Therefore, disconnect the RS55 and check whether the machine is still protected. Power-on test QS2 base voltage is 0V, 24V, 12V output is normal, you can determine the protective shutdown is due to Paul