接触器联锁的正反转控制线路案例分析.ppt

* * 瑞安市职业中专 主讲教师： 高安乐 张再益 M 3~ L1 L2 L3 QS FU KM1 FR SB3 SB1 KM1 KM1 FR 正转控制线路 正转 M 3~ L1 L2 L3 QS FU KM2 FR 反转控制线路 KM2 SB3 SB2 KM2 FR M 3~ L1 L2 L3 QS FU KM2 FR SB3 SB2 KM2 KM2 FR 反转控制线路 M 3~ L1 L2 L3 QS FU KM1 FR SB3 SB1 KM1 KM1 FR 正转 KM1 KM2 联锁(互锁) 接触器联锁的 短路 L1 L2 电源开关 热 继 电 器 M 3~ 正转接触器 反向起动按钮 正向起动按钮 停止 按钮 KM2 L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 FR 接触器联锁的正反转控制线路 电动机 熔断器 反转接触器 KM2 M 3~ L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 FR 接触器联锁的正反转控制线路 主电路 控制电路 L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 接触器联锁的正反转控制线路 L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 接触器联锁的正反转控制线路 合上开关 L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 按正转起动按钮SB1 KM1线圈获电 L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 正转 KM1主触头闭合 电动机M正转运行 KM1辅助常闭触头断开 实现联锁 KM1辅助常开触头闭合 自锁 正转控制 按正转起动按钮SB1 KM1线圈获电 L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 正转 按停止按钮SB3 L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR KM1线圈断电 按停止按钮SB3 L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR KM1主触头断开 电动机M停转 KM1辅助常闭触头闭合 KM1辅助常开触头断开 自锁消失 停转 联锁消失 按停止按钮SB3 KM1线圈断电 按停止按钮SB3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 停转 停转 L1 L2 L3 电动机M停转 KM1辅助常闭触头闭合 KM1辅助常开触头断开 自锁消失 联锁消失 KM1线圈断电 KM1主触头断开 接触器联锁的正反转控制线路 L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 接触器联锁的正反转控制线路 L1 L2 L3 QS FU KM1 KM2 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 反转 接触器联锁的正反转控制线路 KM2 L1 L2 L3 QS FU KM1 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 接触器联锁的正反转控制线路 KM2 L1 L2 L3 QS FU KM1 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 接触器联锁的正反转控制线路 KM2 L1 L2 L3 QS FU KM1 FR SB3 SB1 SB2 KM1 KM1 KM1 KM2 KM2 KM2 FR 停转 *