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【简答题】
利用状态显示可以检测数控系统(数控侧)是否已将信号输出到机床侧,机床侧的开关量等信号是否输入到数控系统。设有PLC输出信号A8.3=“1”,令电磁换向阀YV61得电,释放刀库。但刀库仍旧处于被锁定的状态,如诊断发现A8.3为(),则说明故障在()侧;如诊断发现A8.3为(),则说明故障在()侧。
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