京哈线沈哈段ZPW-2000A闭环电码化开通初期,多次发生由于邻线电码化信息干扰影响机车信号正常工作的故障。经过深入分析,找到故障原因及处理方法。1故障现象如图1所示,在邻线3G停有车辆时,由ⅠG正线通过的列车从咽喉区进入股道后,机车信号由绿灯突变为红黄灯,造成列车紧急制动, Beijing-Harbin line Shen Ha paragraph ZPW-2000A closed-loop coding of the early opening of many occurred due to the adjacent code information interference locomotive signal failure of the normal work. After in-depth analysis to find the cause of the malfunction and treatment. 1 fault phenomenon As shown in Figure 1, 3G vehicles parked in the adjacent line, by Ⅰ G line passing train into the stock from the throat area, the locomotive signal from the green light into a red and yellow light, causing the train emergency braking,