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HMIGXU6512
- 更新时间:2025-03-19
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HMIGXU6512
HMIGXU6512
HMIGXU6512
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。
440C-CR30-22BBB 1 面价7186.8
ABB ES2000-975 12只
6GK5108-0BA00-2AC2 1
6GK1901-1BB30-0AA0 1
6GK1901-1BB20-2AA0 2
6ES7392-1BM01-0AA0 1
6ES7193-4CC30-0AA0 2
6ES7135-4GB01-0AB0 2
6EP3337-8SB00-0AY0 4
6ES7390-1AE80-0AA0 1
6ES7315-2EH14-0AB0 1
6ES7 407-0KA02-0AA0 1
6ES7 414-3EM07-0AB0 1
6ES7 492-1AL00-0AA0 4
6ES7 432-1HF00-0AB0 1
转换器CP8551 1 SIEBE 1
130-7TE23-6AA3 1
6FC5203-0AF05-0AB0数量:1件---------------
6ES7194-4AJ00-0AA0 1
6AV2124-1DC01-0AX0 1
ML3-125 1
6ES7215-1AG40-0XB0 3
1756-L82EK ? 1 92434
1756-EN2TRXT? 8 50963
2711P-T7C22D9P 5 19097
AX410/100010/STD 1
266DSH.H.S.S.A.1.A.7 LSB1C1 1
266DSHFSSA1A7V1LSB1C1 1
266DSHHSSA1A7V1LSB1C1 1
266DSHHSSA1A1V1L1B1C1 1
3BSE018315R1 1
DS1051 8----------------
DS1053 8---------------
SPS601R-230A-48-12P 7
SPS101R-230A-24 8
BRC400 5
IMASI23 6 -------------
IMASO11 6--------------
IMICV01 3----------------
IMTSA01 3---------------
PC INCT13A 3
INNIS21 4-----------------
INNPM11 4---------------
SA06L0507-V for KVM EXTENDER C5 PRO 300 2
E4001/SM9 4001.015.00 4
10.000HR S/N480 10
NHM9 3
AP1528 3
HD2-FBPS-1500 30
MB-FB-4R 10
PIN2212 15
DDI 6402K 3
DDO6402K 3
DRA1605 3
AMO0210 3
P342020 5
CPS3020 5
AH259B3 3
6GK5788-1GD00-0AA0 1
6GK5748-1FC00-0AA0 1
6ES7136-6BA00-0CA0 3
6SL3220-3YH50-0CF0 1
6ES7531-7PF00-0AB0 5
6ES7221-1BF32-0XB0 2
6ES7222-1HH32-0XB0 2
6ES7522-1BF00-0AB0 4
6ES7155-6AU01-0BN0 10
6ES7513-1AL02-0AB0 2
6GK1503-2CB00 2
6GK1901-1BB30-0AA0 30
6GK5008-0BA10-1AB2 2
6ED1052-1FB08-0BA1 3
6ES7972-0BA12-0XA0 30
193-EC2DD电流9-45A:带底座,数量1套 8436 17年面价
ATV312HD11N4 1
2198-S086-ERS3 2 面价28702
2198-DCBUSCOND-RP312 2 面价18532
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