DCS800-S01-1500-05
DCS800-S01-1500-05
DCS800-S01-1500-05
2、 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。
9-28
品牌:KROM SCHRODER PFU760LT 品牌,2个
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NT255
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MPC240-128
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DIO216
PTAI216
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EM203
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AIO288/1
CNT204/H
LM201
MX213
AIC212
DIO16-C
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RASP-512AI1SL-C320V1 12台
霍尼韦尔51403422-150 2--------
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DCS800 5
6BK1700-2BA00-0AA0 10
650-8PC00-0AA0 4
650-8PB00-0AA0 1
6FX8002-5CA61-1FA0
6FX8002-2EQ10-1HF0
6FX5002-5DA61-1FA0
6FX5002-2CA31-1CA0
6FX8002-5CG01-1BA0
6FX8002-5CA61-1HA0
6FX8002-2EQ10-1HA0
6FX8002-2EQ10-1FA0
6FX5002-5CS21-1BA0
6FX5002-2DC10-1BA0
6FX3002-5CL12-1BA0
6FX3002-5CK01-1CA0
6FX3002-5BL03-1BA0
6FX3002-2DB20-1CA0
6FX3002-2CT12-1BA0
6FX8002-2CA31-1FA0
6FX8002-2CA34-1BA0
6FX8002-2EQ10-1EA0
6FX8002-2EQ10-1EA0
6FX8002-2EQ14-1BA0
6FX8002-5DA01-1BF0
6FX8002-5DA11-1BA0
6SL3060-4AF00-0AA0
DSCA114
DSCA121
DSDI130
DSDO130
DSDX110
DSDXB001
DSMB124
DSMB125
DSMB127
DSMC110
DSPA110
DSPC153
DSPC157
DSQC101
DSQC103
DSQC105
DSQC107
DSQC115
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DSQC122
DSQC123B
DSQC129
DSQC142
DSTD160
DSQC200
DSQC202
DSQC204
DSQC208
DSQC208A
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DSQC210
DSQC211
DSQC215
DSQC223
DSQC224
DSQC227
DSQC228
DSQC229
DSQC230
DSQC233
DSQC235A
DSQC235B
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DSQC236B
DSQC236C
DSQC236D
DSQC236G
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DSQC236P
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DSQC238
DSQC239
DSQC241
DSQC243
DSQC248
DSQC249A
DSQC249B
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DSQC253
DSQC254
DSQC255
DSQC256A
DSQC257
DSQC258
DSQC259
DSQC266A
DSQC266B
DSQC266C
DSQC266G
DSQC266H
DSQC266T
DSQC300
DSQC301
DSQC302
DSQC306
DSQC307
DSQC313
DSQC314A
DSQC314B
DSQC315
DSQC316
DSQC317
DSQC318
DSQC320
DSQC321
DSQC322
DSQC323
DSQC324
DSQC325
DSQC326
DSQC327
DSQC327A
DSQC328
DSQC328A
DSQC331
DSQC332
DSQC334
DSQC335
DSQC336
DSQC344
DSQC345A
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DSQC345D
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DSQC346C
DSQC346E
DSQC346G
DSQC346U
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DSQC352A
DSQC354
DSQC355
DSQC358C
DSQC358E
DSQC358F
DSQC358G
DSQC361
DSQC363
DSQC365
DSQC373
DSQC374
DSQC377B
DSQC385
DSQC500
DSQC501
DSQC503
DSQC504
DSQC505
DSQC506
DSQC508
DSQC509
DSQC518A
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DSQC522
DSQC539
DSQC546A
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