DS200TURCF1ACB GE 高品质 低成本 短交期

1785-L60B/E
00-130-547
1788-CNCHKR
Tektronix-PWS4305
CE58MART-NR5802-0013
00-168-334
IC695CPE330
AZKA56L-4T
RES420
CR06660-JW

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描述

控制负载的接触不能可靠动作,PLC发出了动作指令,但执行机构并没按要求动作;

控制变频器起动,由于变频器自身故障,变频器所带电机并没按要求工作;

各种电动阀、电磁阀该开的没能打开,该关的没能关到位,由于执行机构没能按PLC的控制要求动作,使系统无法正常工作,降低了系统可靠性。要提高整个控制系统的可靠性,必须提高输入信号的可靠性和执行机构动作的准确性,否则PLC应能及时发现问题,用声光等报警办法提示给操作人员,尽快排除故障,让系统安全、可靠、正确地工作。

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