主传动电机稳定运行的研究与应用

Research and Application of Stable Operation of Main Drive Motor

因热轧主电机发生的轴瓦磨损事故而对压力信号进行改进,避免同类事故的发生。保持原轴瓦压力信号不变,报警方式不变,在机旁的ET200站增加压力信号至PLC的主电机转车连锁程序,使主电机的轴瓦受两路压力信号保护。通过对轴瓦压力信号的改进,可以有效避免单信号回路故障失效导致主电机重大事故的发生,保证轧线的正常生产。

Due to the bushing accident of the hot rolling main motor,we improve the pressure signal to avoid similar accidents.The original bushing pressure signal and the alarm mode are unchanged,and the pressure signal to the PLC's main motor transfer chain program at the ET200 station next to the machine is added,so that the bushing of the main motor is protected by two pressure signals.Through the improvement of the bushing pressure signal,the failure of the single signal loop that can result in major accidents of the main motor can be effectively avoided,and the normal production of the rolling line can be guaranteed.