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TC562

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。

10-8

MDX61B0040-5A3-4-0T

1SBN020301R1000 10

XKDF-13440000数量18

1SD536F2-CM1200E4C-34N 10

1SD536F2-CM2400HCB-34N 10

EBE-46-535-3

EBE-46-495-3 各五

E5ZE-CBL200 40

MTL7760AC 1

Memory 1GB ECC Expansion, MZ-PCEM1 5

FCCD143ADC 20

FCCD143AEDC 20

FRN132G1S-4C 1

E5CN-R2T 2个

EVM58N-011PNROBN-1213数量1

6ES7132-4BB31-0AB0 5

6ES7158-0AD01-0XA0 1

SKH G1 1/2 40 31231数量1

CP1L-L14DT-D 1个

K7M-DR60U-24VDC 1

SM250-22110423 1

F-20MR-E 3

FX2N-1PG 2个

HMD8-4C1

HV300-A04T01850 1

PIS843UH-1CS21-42DA/CE 2台

CEXSPUCZXSPMZZ 1

70BA01C-S 2

HESG447260R2

6ES7231-7PB22-0XA8 数量1

20G11NC085JA0NNNNN 一台面价66670--------

编码器 ID749147-02 西门子 1

ERN1387.035-2048

6SL3210-1SE21-8UA0? – 1?рс

PCI-GPIB 20片

6SL3352-3AE33-8AA0 西门子的这个数量2个

SCHNEIDER

HARS700/200 (LHE1411053060-001)，2个

7ME4100-1CL10-2AA1 数量: 1

7ME4100-2CN10-1AA1 数量: 1

HME0200D 1

HME0300D 1

SGMAV-C2AAK-NS12 1个

1SDA013877R1 1

6ES7972-0BA12-0XA0，数量4件

Bosch 0-811-405-126 1

0811405126

VT-MSPA1-508-10/V0

6SL3210-5FB10-1UF2 1

6SL3260-4MA00-1VB0 1

1LE0001-1DA33-3FA4 1

6ES7553-1AA00-0AB0 2

6ES7526-2BF00-0AB0 3

6SL3210-5HB10-8UF0 2

6FX8002-8QN04-1AH0 2

6SL3210-5FE10-8UF0 2

6FX3002-5CL02-1BA0 2

6FX3002-2DB10-1BA0 1

6FX3002-5BL03-1BA0 1

6SL3210-5FE11-0UF0 2

6FX3002-5CL02-1BA0 2

6FX3002-2DB10-1BA0 1

6FX3002-5BL03-1BA0 1

6ES7511-1AK02-0AB0 1

6ES7521-1BL10-0AA0 1

6ES7531-7QD00-0AB0 1

6AV2124-0GC01-0AX0 1

6ES7954-8LC03-0AA0 1

6ES7590-1AC40-0AA0 1

6ES7521-1BH10-0AA0 1

6ES7223-1PL32-0XB0 8

6ES7193-6BP20-0DA0 2

6ES7193-6BP20-0DA0 辅助端子 13

METSEEM6400NGRSCL1 1

K2E225-RB92-09 1

6ES7517-3HP00-0AB0 1

6ES7960-1CB00-0AA5 1

CPU 1756-L7SP 1 个面价13334

智能电表 1420-V2A-ENT 1 个面价11413

PLC电源 1756-PB75 1 个面价13673

CPU 1756-L73S 1 个面价148482

6AV7200-0BB00-2FA0 1

VAT N-5100-157 FE-VAT, O-RING, FEEDTHRU

VAT N-5100-225 O-RING

VAT N-5100-319 O-RING

VAT N-5111-329 PENDULUM VALVE DRIVER SEA O-RING

VAT VAT-64246-PE52-1109 VALVE, VAT S64 DN200 VALVE

VAT VT- P10292102 VALVE GATE 35X336MM CHEMRAZ SEAL(3870-02

VAT VT-N5111-383 BONNET SEAL

VAT VT-P10292102 VALVE GATE 35X336MM CHEMRA Z SEAL FOR 38

VAT VT-P7704002 VITON SEAL

VAT VT-P8092912 PLATE,GATE VALVE FOR DPS

VAT VT-P9523202 LOCKING BALL

VAT VT-P9587302 LOCKING BALL

VAT VT-V17543-12632-2352/0060 GATE VALVE

VAT VT-V92659-17632-2112/0452 GATE VALVE

VERIFLO 43100580 VALVE, GAS, VCR

VERIFLO 43700326 REGULATOR

VERIFLO 43700875 VALVE DIAPHRAM

VERIFLO 43900827EX VALVE

VERIFLO 45100132 VALVE ASSY

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VERTEQ 1081190 ROTOR SPIN RINSER DRYER VERTEQ

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VERTEQ 1083941-21 CABLE ASSY,8201,N2-TEMP

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VERTEQ 1083941-24 CABLE ASSY,8201, DOOR HEATER

VERTEQ 1083941-25 CABLE ASSY,8201, BOWL HEATER

VERTEQ 1083941-26 CABLE ASSY, 8201, N2 HEATER

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