PLC 545-1103
PLC 545-1103
PLC 545-1103
数字量信号连接应注意的问题
变频器的输入信号中包括对运行/ 停止、正转/ 反转、点动等运行状态进行操作的数字量输入信号(开关型指令信号),这些信号常来自PLC 的数字量输出信号。PLC 通常利用其内部的继电器接点(继电器输出型P L C )或具有开关特性的元器件(晶体管输出型PLC)与变频器相连,得到运行状态指令,如图1 和图2 所示。在进行数字量信号的连接时应注意:
(1)使用继电器输出型P L C 与变频器相连时,应注意接触不良常带来变频器误动作,因此在实际接线中要注意连接可靠。
(2)使用晶体管输出型P L C 与变频器相连时,应注意晶体管本身的电压的高低、电流的大小等限制条件在其范围内,保证系统的可靠性。
(3)设计变频器的输入信号电路时,应尽量避免采用继电器等感性负载,因继电器开闭产生的浪涌电流可能引起变频器的误动作。
(4)当P L C 输出的开关信号进入变频器时,有时会发生外部电源和变频器控制电源之间的串扰,应注意对P L C和变频器分开接地,避免两者使用共同的接地线。
NDR-120-12 各3
6SL3040-0PA01-0AA0 2
1440-VST02-01RA 数量1 AB
A06B-6140-H030 数量1---------------------
A06B-6140-H030数量1--------------------
A06B-6140-H030数量1------------------
A06B-6079-H401数量1---------------------
A06B-6079-H403数量2-------------------
A06B-6132-H003数量2------------------
A06B-6140-H037数量1------------------
A06B-6117-H106数量2----------------
A06B-6117-H207数量1------------------
A06B-6117-H103数量1------------------
A06B-6140-H055数量1-----------------
A06B-6142-H045数量1------------------
A06B-6144-H045数量1-----------------
A02B-0307-B824数量1--------------
A02B-0307-B822数量1------------------
A16B-3200-0521数量1--------------------
A20B-8101-0030数量1------------------
6SL3120-1TE24-5AC0 1 保内
6SL3120-1TE28-5AA3 1 保内
6SL3120-1TE32-0AA4 2 保内
abb电源3BHB031013R0001 0.48KVA DC24V/AC24V 一个
6ES7322-8BH10-0AB0,数量1---------------
6SL3100-0BE23-6AB0 1
6ES7648-3AK10-0PA0 1个--------------
P242218D1M0410K---------------------
P143218F1M0468J-------------------
6SL3246-0BA22-1FA0 9
CIMR-AB4A0023FAA 数量:1
A06B-6140-H026 数量1---------------
A06B-6117-H109 数量1---------------
A06B-6144-H045数量1--------------
A06B-6091-H175数量1--------------------
BMXNOC0401 1---------------------
6ES7515-2FM02-0AB0 4
6AV2125-2AE23-0AX0 4
6AV2181-5AF25-0AX0 4
6AV2181-5AG80-0AX0 4
6SL3210-1KE11-8UF1 28
6SL3210-1KE12-3UF2 4
6SL3210-1KE11-8UF2 28
ACS880-01-017A-3
ACS880-01-045A-3
ACS880-01-04A0-3 各一
6EP1334-2BA10 2
336-2BA10
1764-28BXB 2 19面价7064
1769-ECR 2 面价404
1769-IF4 2 面价5765
1769-IQ16 2 面价2833
1769-OB16 2 面价3726
6DD1660-0BF0 1个------------------
6DD1660-0BG0 1个------------------
E82EV751K2C 1
6AV6643-0CB01-1AX1 1----------------
2711-NM13 1 6366
2711-NM232 1 7628
6AV7241-5RB30-0FA0 1个
6RY1703-0EA01 2-----------------
型号:4762079-5 25-1500A规格:3AFE10013216 DCA0013216P0001*ABB 1
型号:63514-903M010703-05CODE:DCA0014387P0001规格:电流102A,电压500V电感:0.09mH*TRANSFORMATIK 1
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