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1.故障现象1台HDD6000型600t水平定向钻机钻进施工时,其控制器的显示器突然显示故障,动力头推拉、钻杆旋转及履带行走等均无动作。控制器所有脉宽调制信号(PWM信号)均无输出。除动力头顶进与回拉的高速Ⅲ挡动作输出信号异常外,控制器其他开关量(DC信号)输出信号均正常。2.控制原理及功能(1)原理该水平定向钻机动力头的推拉、钻杆旋转及钻机的前后行走等由电控系统控制,其原理如附
1. Symptom 1 HDD6000 600t horizontal directional drilling machine drilling construction, the controller’s display suddenly shows fault, power head sliding, drill pipe rotation and crawler walking and so no action. No pulse width modulation signal (PWM signal) of the controller is output. In addition to the power head and pull back the high-speed block Ⅲ action output signal abnormalities, the other switch controller (DC signal) output signals are normal. 2. Control principle and function (1) Principle The horizontal directional drilling machine power head push and pull, drill pipe rotation and drilling rig before and after walking by the electronic control system, the principle as attached