电工学 作者 行小帅 主编 第7章 电气自动控制.ppt

KM2 KM1 KM2 KM2 SB3 KM2 SB2 KM1 KM1 SB1 QF L1 L2 L3 M 3 ~ FR 反转起动：按SB3 反转结束：按SB1 FR KM2 KM1 KM2 KM2 SB3 KM2 SB2 KM1 KM1 SB1 QF L1 L2 L3 M 3 ~ FR 反转起动：按SB3 FR KM2 KM1 KM2 KM2 SB3 KM2 SB2 KM1 KM1 SB1 QF L1 L2 L3 M 3 ~ FR 反转起动：按SB3 FR KM2 KM1 KM2 KM2 SB3 KM2 SB2 KM1 KM1 SB1 QF L1 L2 L3 KM1 M 3 ~ FR 反转结束：按SB1 FR KM2 KM1 KM2 KM2 SB3 KM2 SB2 KM1 KM1 SB1 QF L1 L2 L3 KM1 M 3 ~ FR 正转起动：按SB2 反转起动：按SB3 SB3 SB2 FR KM2 KM1 KM2 KM2 SB3 KM2 SB2 KM1 KM1 SB1 QF L1 L2 L3 KM1 M 3 ~ FR 正转起动：按SB2 SB3 SB2 FR KM2 KM1 KM2 KM2 SB3 KM2 SB2 KM1 KM1 SB1 QF L1 L2 L3 KM1 M 3 ~ FR 正转起动：按SB2 SB3 SB2 FR KM2 KM1 KM2 KM2 SB3 KM2 SB2 KM1 KM1 SB1 QF L1 L2 L3 KM1 M 3 ~ FR 反转起动：按SB3 SB3 SB2 FR KM2 KM1 KM2 KM2 SB3 KM2 SB2 KM1 KM1 SB1 QF L1 L2 L3 M 3 ~ FR 反转起动：按SB3 SB3 SB2 FR 本节思考题 1、自锁和互锁的区别？ 2、三种控制电路，分别利用自锁互锁解决什么问题？ 3、控制电路Ⅲ的优点有哪些？ 7.3 顺序联锁控制 例如：皮带运输 要求两台电动机的顺序起停： (1) M1 起动以后 M2 才能起动 (2) M2 停止以后 M1 才能停止 M1 M2 KM2 KM1 QF L1 L2 L3 SB2 KM1 KM1 SB1 SB3 KM2 KM2 SB4 KM1 M1 3 ~ FR1 KM2 M2 3 ~ FR2 只能先起动M1：按SB2 FR1 FR2 KM2 KM1 QF L1 L2 L3 SB2 KM1 KM1 SB1 SB3 KM2 KM2 SB4 KM1 M1 3 ~ FR1 KM2 M2 3 ~ FR2 只能先起动M1：按SB2 FR1 FR2 KM2 KM1 QF L1 L2 L3 SB2 KM1 KM1 SB1 SB3 KM2 KM2 SB4 KM1 M1 3 ~ FR1 KM2 M2 3 ~ FR2 只能先起动M1：按SB2 FR1 FR2 KM2 KM1 QF L1 L2 L3 SB2 KM1 KM1 SB1 SB3 KM2 KM2 SB4 M1 3 ~ FR1 KM2 M2 3 ~ FR2 再起动M2：按SB3 FR1 FR2 KM1 KM2 KM1 QF L1 L2 L3 SB2 KM1 KM1 SB1 SB3 KM2 KM2 SB4 M1 3 ~ FR1 KM2 M2 3 ~ FR2 再起动M2：按SB3 FR1 FR2 KM1 KM2 KM1 QF L1 L2 L3 SB2 KM1 KM1 SB1 SB3 KM2 KM2 SB4 M1 3 ~ FR1 KM2 M2 3 ~ FR2 只能先停止M2：按SB4 FR1 FR2 KM1 KM2 KM1 QF L1 L2 L3 SB2 KM1 SB1 SB3 KM2 KM2 SB4 M1 3 ~ FR1 KM2 M2 3 ~ FR2 再停止M2：按SB3 KM1 FR1 FR2 KM1 本节思考题 1、只能M1先起动和只能M2先停止分别是由哪个触头控制