描述
抗干扰与外部互锁当PLC输出带感性负载,负载断电时会对PLC的输出造成浪涌电流的冲击,为此,对直流感性负载应在其旁边并接续流二极管,对交流感性负载应并接浪涌吸收电路,可有效保护PLC。当两个物理量的输出在PLC内部已进行软件互锁后,在PLC的外部也应进行互锁,以加强系统的可靠性。
1391B-ESAA22-AQB ALLEN BRADLEY *1 YR. WARRANTY*
ALLEN BRADLEY AC SERVO CONTROLLER 1391B-ESAA22-AQB
ALLEN BRADLEY 1391B-ESAA22-AQB USPP 1391BESAA22AQB
1391B-AA45-A06 ALLEN BRADLEY AC SERVO CONTROLLER
1391B-AA45 ALLEN BRADLEY AC SERVO CONTROLLER **1YR WRTY
ALLEN BRADLEY 1391B-ESAA45-AQB USPP 1391BESAA45AQB
1391B-AA22 ALLEN BRADLEY AC SERVO CONTROLLER **1YR WRTY
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ALLEN BRADLEY 1391B-ESAA15-AQB AC SERVO DRIVE**NIB**
ALLEN BRADLEY 1391B-AA45N AC SERVO CONTROLLER **XLNT**