NI PCI-1422 配件

DDS03.2-W030-B
80026-044-06-R
6SM27LL-4.500
6ES7151-7AA20-0AB0
HW9280729-B
77-964-2300
6SE7090-0XX85-1DA0
6SE7038-6GL84-1JA1
6SE7041-2WL84-1JC0
6SE7038-6GL84-1BG2
AKD-B00606-NAAN-0000
6DD1683-0BC5
1FK7063-5AF71-1FH0

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描述

在电动机运行时按停止按钮SB2,它的常闭触点断开,使KM的线圈失电,KM的主触点断开,异步电动机的三相电源被切断,电动机停止运行i同时控制电路中KM的辅助常开触点断开。当停止按钮SB2被放开,其常闭触点闭合后,KM的线圈仍然失电,电动机继续保持停止运行状态。图1.3给出了有关信号的波形图,图中用高电平表示1状态(线圈通电、按钮被按下),用低电平表示0状态(线圈断电、按钮被放开)。

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