6ES7120-2TE21-0AA4电机模块详报

6ES7120-2TE21-0AA4电机模块详报

6ES7120-2TE21-0AA4电机模块详报

6ES7120-2TE21-0AA4电机模块详报

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。

SE07-18W              1

6ES7675-1CK30-0AA0    1

6FC9301-0EC20      5

151-8AB01-0AB0数量1

953-8LJ31-0AA0数量1

138-4CA01-0AA0数量2

132-4BF00-0AA0数量5

134-4GD00-0AB0数量2

134-4GB01-0AB0数量2

193-4CC20-0AA0数量2

193-4CA40-0AA0（5片包装）数量3

193-4JA00-0AA0数量1

HVG-521   1

光口转DP/NSKNS2104MT   1

AF580-30   1

5SNA 1800E170100    2个    ABB

3AFP67471482

3AFP67471491     各1

20BC170A0AYNANC0    面价：129046    2

20BC30A0AYNANC0    查不到面价    2

20BC125A0AYNANC0     面价：116842    2

20BC8P7A0AYNANC0    面价：17967    2

1756-OE16I   查不到面价    2

20-750-ENETR    面价：3711    1

1765-BA2   查不到面价   10

1756-CNB  面价： 22939    1

2711P-T10C21D8S   1  面价23711

MINI MCR-SL-I-I-SP                 ABB    1

6SE6420-2AB13-7AA1 2

FRD.WJA2.302  1

FRN0.75H11S-2F0   1

FRN2.2H11S-2   1

RYS201S3-VVS   1

MD-CX522-0.75K   1

72-0-00005-80-A3 

18-0-00005-80-A2  

YASKAWA CIMR-VT2A0020BAA  数量1

73-551-0005/5VDC   1

QD62   2个

REF601BD446BB1NH

GLBS200516R5103

rm7838b1013

V4055D1035

SGMCS-05B3C-YA21

ATS22D88Q

6SE7021-3TB71-Z D99+F01

6GK1503-2CC00

6SE7 033-7TG60-ZG93+K80

6SE7 033-2TG60-Z-G93+K80+L30

6SE7 023-4TC61-ZG93

6SN1145-1BB00-0FA1

AXIOMTEX AX60400WB-X180P   1

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