409-1030-001

409-1030-001

409-1030-001

409-1030-001

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。

伊顿T60030-3SR数量14

LC1D40008D7数量4

BMXDDI3202K   1

BMXFCW503(5M)   2

BMXFTB2820   1

PCI-e6320   1-----------

PCIE-6320---------------

TU841       5-------------

HMIG5U2   15

SACE PR122/P-LSI   1

ACS880-01-206A-3+P974   1

20F11NC060JA0NNNNN       34117

20-HIM-B1     748      1

ACS880-04-820A-3     1

6GK5204-2BC10-2AA3      1-----------

6AV3617-1JC20-0AX1  1

6ES7322-1BH10 0AA0  1------------

6ES7 332-5HF00-0AB0  1------------

6AV6 642-0BA01-1AX1，1台---------------

ACS150-01E-02A4-2 0.37KW

ACS355-03E-02A4-4 0.75KW

ACS355-03E-01A2-4 0.37KW

1MRK008514-AC    1

A5E31392126    1

VX5A1HC2540     1

VX5A1206     3

VZ3DM2200M5471    3

VZ3TM2200M4371   3

VZ3IM1502M1771    6

ATS48C25Q-----------------

BMXEAE0300--------------

CIMR-HB4A0031FBC---------------

6ES7516-3AN02-0AB0-------------

VY1ADC1117   20

VZ3V1212     4

VX5A1400     1

6ES7591-1BA02-0AA0   1                  6GK5108-0BA00-2AC2   1

6GK5116-0BA00-2AC2   1

ACS880-01-169A-3  75KW +D150 ----------------- 

FS500R17OE4DP/BGAD-21C-------------

BCU-12----------------

6ES7517-3AP00-0AB0--------------

6ES7410-5HX08-0AB0-------------

ACS880-01-145A-3    +J425

ACS880-01-032A-3  11KW +E200

ACS880-01-072A-3 30KW +D150  各1

6AR1302-0AB00-0AA0    1-----------------

6SL3040-0JA00-0AA0   1

6SL3210-1SE12-2UA0  1

100-D180D00数量27 面价19年的11600

siemens  SKD60  数量一个

SQM56.687A1G3    1

BRC300   1

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