接触器联锁的正反转控制线路.ppt

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1、欢迎各位专家、老师莅临指导瑞安市职业中专课题：接触器联锁正反转控制线路瑞安市职业中专电子组电工技能与训练主讲教师：高安乐张再益M3~L1L2L3QSFUKM1FRSB3SB1KM1KM1FR正转控制线路正转M3~L1L2L3QSFUKM2FR反转控制线路KM2SB3SB2KM2FRM3~L1L2L3QSFUKM2FRSB3SB2KM2KM2FR反转控制线路M3~L1L2L3QSFUKM1FRSB3SB1KM1KM1FR正转KM1KM2联锁(互锁)接触器联锁的短路L1L2电源开关热继电器M3~正转接

2、触器反向起动按钮正向起动按钮停止按钮KM2L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2FR接触器联锁的正反转控制线路电动机熔断器反转接触器KM2M3~L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2FR接触器联锁的正反转控制线路主电路控制电路L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR接触器联锁的正反转控制线路L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM

3、1KM1KM2KM2KM2FR接触器联锁的正反转控制线路合上开关L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR按正转起动按钮SB1KM1线圈获电L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR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SB1KM1线圈获电L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM

4、2KM2FR正转按停止按钮SB3L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FRKM1线圈断电按停止按钮SB3L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FRKM1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SB3KM1线圈断电按停止按钮SB3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR停转停转L1L2L3电动机M停转

5、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L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR接触器联锁的正反转控制线路L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR反转接触器联锁的正反转控制线路KM2L1L2L3QSFUKM1FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR接触器联锁的正反转控制线路KM2L1L2L3QS

6、FUKM1FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR接触器联锁的正反转控制线路KM2L1L2L3QSFUKM1FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR停转接触器联锁的正反转控制线路KM2L1L2L3QSFUKM1FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR停转L1L2L3QSFUKM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2KM2FR停转接触器联锁的正反转控制线路L1L2L3KM2M3~KM1KM2FRSB3SB1SB2

7、KM1KM1KM1KM2KM2FR实验线路图V2KM1KM2SB3SB2SB1FR电动机U1W2U2W1V1V2接电源插头接电动机实物布局图L1L2L3KM2M3~KM1KM2FRSB3SB1SB2KM1KM1KM1KM2KM2FR测试电阻(参考值)RL1L2RL2L3RL3L1①直接测∞∞∞②按下SB1或SB2约1800Ω③SB1、SB2同时按下约900Ω④人为使KM1动作约320Ω约270Ω约320Ω⑤人为使KM2动作约320Ω约270Ω约320Ω