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模拟量信号连接应注意的问题变频器中的模拟量输入信号，通常指0～10V/5V 的电压信号或0/4～20 ｍＡ的电流信号；这些模拟量输入信号可通过接线端子由外部给定，当变频器与P L C 连接时，这些模拟量输入信号也可来自PLC 的模拟量输出信号，如图3 所示。在进行模拟量的连接时应注意：

（1）阻抗匹配。根据变频器的输入阻抗选择P L C 的输出模块，实现两者的阻抗匹配。

（2）电压范围。当变频器和P L C 的电压信号范围不同时（如变频器的输入信号为0～10V，而PLC 的输出电压信号范围为0～5V 时；或PLC 的一侧的输出信号电压范围为0～10V而变频器的输入电压信号范围为0～5V时），需采用串联电阻的方式进行分压，以保证两者在正常电压范围内

工作，避免电压过限可能损坏器件。

（3）采用屏蔽电缆或绞合电缆。对于变频器和P L C 而言，弱电控制信号（电压0～5V/10V、电流0/4～20ｍＡ等）易受到外界强信号的干扰，对控制信号采取适当的屏蔽措施。常用的方式就是采用屏蔽电缆进行屏蔽；对于长距离的控制回路宜采用绞合电缆，绞合电缆的绞合间距尽可能小。

（4）主、控电缆分开布线。实际连线时，注意主、控电缆分开布线，且相隔的距离。以保证主电路侧的干扰及噪音影响不到控制电路。

VFD2A7MS43ANSAA 台达 个 8

NDR-240-24 明纬 个 4

GS2107-WTBD 三菱 个 4

FX3U-128M 三菱 个 4

FX2N-16EX 三菱 个 4

GT01-C30R4-8P 三菱 个 4

FX3U-1PG 三菱 个 8

FX3U-16CCL-M 三菱 个 4

FX3U-ENET-L 三菱 个 4

SPT-11 DAIWADENGYO 个 8

HNG-1640-LA-N 安协科技 个 4

LY2N-D2 DC24V 欧姆龙 个 28

PTF08-A 欧姆龙 个 28

TL-SF1005 TP-LINK 个 4

"MR-J3-CN1 SCSI-50芯  控制信号线 1米长

（包含插头和线缆）" 三菱 套 20

GAE75-10    5

MKS 氧气传感器OXYGEN SENSOR FOR GAS DETECTION,56-4007-SP RENA:113265

开关电源 WS-G150:WS4.702.010，JWAK-21S5S16NI   5

XBD120B-L   3

524110??pilz? 10

514110??Pilz?

滤波模块冷却风扇ALCL-1X-X 230V FAN UNI(要带外壳）2

F3SJ-B1505P25   2

FR-BU2-3.7k  2

CC-PCNT01

X-AM2000

polytron 2ir

LIQUILINE M CM42

vegaflex 61 

品牌：HONEYWELL     规格型号：SPM FLEX      数量：1

MPC270   3

M2QA132M8-SDA   3

ASD-A2-1021-L    1

ASD-A2-3043-M    2

VFD110B43A    1

VFD075V43A-2    1

CJ1W-OD231        3

F3SP-B1P   5

ADAM-5510М 2

V6GP6C

V6GP6S

JUMO 404304   1

OMRON门锁 D4NL-1CFG-B  1

WDG40A-1800-AB-H24-K1   2

VLPSX-012P2-ARM   1

MCS 06C41-RSOBO-B11N-ST6S00N-R0SU    1

SRB-NA-R-C.21-24V数量2

Square D 9012 GAW-26 9012GAW26 Machine Tool Pressure Switch Series B

Square D KH36225-LG1 Circuit Breakers, 225 Amp, I-Line, Used

REFURBISHED SQUARE D 250 AMP CIRCUIT BREAKER KAL36250 

Square D 225 Amp 208Y/120/240Volt NQOD442L225 Panelboard (LOA1162)

Square D #MAL36600 Breaker, GREY Face, Used but tested and guaranteed, 

Square D KA36125-LG4 Breaker, 125 Amp, I-Line, Used

Square D transformer 9070T3000D1 480/240-120v 3000VA

Square D KA36125-LG1 Breaker, 125 Amp, I-Line, Used

22751 used, Square D FHP36060TF Circuit Breaker, 600V, 60Amps, 60 Hz

Fuji (BU-JSA3175) 175 Amp Circuit Breaker w/ 24 VDC Shunt Trip, New Surplus

Square D 8536-SD01 8536SD01 Contactor Series A Form S - Used

SQUARE D XGP-B574230 READ/WRITE TAG XGPB574230 TYPE F

Square D HJA36060YP Circuit Breaker, 60 Amp, I-Line NEW

SQUARE D POWER LOGIC 3020 CM-2250 CIRCUIT MONITOR

Square D 8903LXG30V02 Lighting Contactor 30A 600V N1

SQUARE D REACTIVAR POWER CORRECTION CAPACITOR 20KVAR 20 KVAR 480V 3PH PFCD4020F

Square D HJL36050 Breakers, 50 Amp, 65kAIR, New!

Square D (KA36225M) Motor Circuit Protector Circuit Breaker Used/Cleaned/Tested

Square D (KAL36150) 150 Amp Circuit Breaker, Used/Cleaned/Tested

Square D I-Line Circuit Breaker Cat# KH36225 225-AMP

NEW SQUARE D 225 AMP CIRCUIT BREAKER LAL34225 MC1380

Square D KA 36225 225 Amp Circuit Breaker

Square D Pressure Switch 9012 GCW-22 9012GCW-22 9012 GCW22 Ser C NEW

Square D PowerLogic Circuit Monitor 3020/CM2250 Power Logic 3020/IOM-44

Square D/Symax 8030-ROM-441

square d ejb34100 egb ejb edb 100 amp 3 pole breaker

Square d SyMax Programmable Controller Class 8030 NIB

Type DIM-141 Series A 6-48 Vac Delux Input Module

Square D Enclosed Circuit Breaker Cat LA400-AWK Enclousre with 250 Amp Breaker

Square D NQOD PANEL 100 AMP BUS 60 AMP MAIN Plus QO115

Square D HLA36060 (HLA 36060) Circuit Breaker

Square D Heavy Duty Safety Switch, HU362AWK, 60A, 600V, 50/60HZ, Type 3R - NEW

Square D Thermal Magnetic Circuit Breaker 300 Amp 3 Pole 240/480/600 Used

KAL26200WB Breaker, 2 pole, 200 amp, 600 vac

Square D HJA36080 80A 3P Breaker

Square D Size 0 Stainless Steel Fused Combo Starter Box SS 30 Amp 30A Type 3R 4x

Square D and Schnieder 9422TF2 200A Fuseable disconnect switch

Square D I Line Circuit Breaker LA36400 400 AMP

PROGRAMABLE CONTROLLER SQUARE D TYPE COM-271 SERIES B CLASS 8030 MADE BY SYMAX

Square D 8903SPO11 Mechanically Held Contactor *NEW*

Square D Mod 4 40A 12" Feeder Bucket Breaker Style

Square D Mod 4 50A 12" Feeder Bucket Breaker Style

PROGRAMABLE CONTROLLER SQUARE D TYPE HIM-151 SERIES B CLASS 8030 MADE BY SYMAX

ASI DATAMYTE DATA MYTE LSU-N300AC LIGHTSTAR SERIES B TORQUE WRENCH 1/2" SQUARE D

SQUARE D QMB-361-T 30A 30 A AMP FUSED BRANCH SWITCH NEW

CUTLER HAMMER CIRCUIT BREAKER ENCLOSURE 225 AMP 600V RFDN225 NEMA 3R ED3225W

LOT OF 3 SQUARE D STARTERS TYPE SBG2, NEMA SIZE 0, 5 HP

SQUARE D CIRCUIT BREAKER 3P 80 AMP 480V FC340801024

Square D Seriplex Isolated Output Module SPX2A2A2AV2

SQUARE D MHP36800MT 800 AMP CIRCUIT BREAKER ,USED

Square D 100 Amp Circuit Breaker FAL361008041 Control Tap Wire Lugs 

Square D HJA 260702 2 Pole I Line Circuit Breaker 

Square D HGA 36030 3 Pole I Line Circuit Breaker

Square D 1000 Amp 600 Volt 3 pole Switch Breaker

SQUARE D QMB364W SERIES E1 200 AMP 600V QMB PANELBOARD SWITCH USED

Square D HJA36030 600V 30A 3P 3 Pole Bolt-on Circuit Breaker

Peter Struyken, Broken Square, n.d., silkscreen, ed.190

SQUARE D COMPANY 8030 CIM-131 12-24V INPUT MODULE PLC

SQUARE D COMPANY 8030 CIM-101 120V INPUT MODULE PLC

SQUARE D COMPANY 8030 COM-221 120V OUTPUT MODULE PLC

Square D 9007 SGSIDK Limit Switch

SQUARE D COMBINATION CONTROLLER

SQUARE D TRANSFORMER 9070T1500D51 *NEW*

Square D Electrical Distribution Panel 750 Amp 

Square D NQO-204M 100 amp main breaker 3 phase Panelboard 20 Space QO-115 QO-120

Five (5) Square D 15 A 1P Circuit Breakers EGB14015 NIB

square d breaker kal36150 shop new

NEW SQUARE D PQ PQ4203 30 AMP 240V FUSIBLE BUSS BUS PLUG

SQUARE D QMB QMB364 200 AMP 600V FUSIBLE PANELBOARD SWITCH

square D circuit breaker 225A 

SQUARE D SCG3V81 STARTER FORM# CFF4P1TX11 SIZE 0 AND 1 BRAND NEW IN BOX 

Cook Square Centrifugal Inline Blower SQND 7CSQN15D 

SQUARE D ELECTRICAL OPERATOR MAM02120ACSC OR MAM02120ACR

SQUARE D CIRCUIT BREAKER 3P 125 AMP 240V QOB3125VH

SQUARE D 400 AMP 3POLE BREAKER LA36400 SERIES 3 600 VOLTS

SQUARE D EXPLOSION PROOF CONTROL STATION 900-R123 SERIES 4 LB NEW

200 Amp Square D Safety Disconnect Switch DU324RB 240 VAC Series E3 60 HP

Square D 8030-CRM-210 SY/MAX Local Interface 512 REG.

SQUARE D 9998-FA-82 NSFP 9998FA82

SQUARE D WS382 USPP WS382

SQUARE D ACF43EC NSFP ACF43EC

SQUARE D EGB24080 NEW BREAKER 80 AMP 2 POLE 277/480 VAC 35K AIC

Square D I-line I Line busway bus take off box with 225A breaker 36KA

SQUARE D CIRCUIT BREAKER QOM60VH *NEW* 60AMP

Square D Class 9012 Pressure Switch GGW-4

SQUARE D 9012-AEW-1 USPP 9012AEW1

SQUARE D PS3203 NSPP PS3203

SQUARE D 60A 60 A AMP H 362 AWK SER. D4 600V FUSIBLE SAFETY DISCONNECT SWITCH

SQUARE D 8536-SBW21-V08 NSPP 8536SBW21V08

SQUARE D 8536-SAG12-V02CS USPP 8536SAG12V02CS

SQUARE D 8536-SDO6-V02 NSFP 8536SDO6V02

1840 1d Black Plate 2 (PB) Re-cut letter squares

Returns: Accepted

SQUARE D 9070-T750D5 NSFP 9070T750D5

Square D 2510MBW11 Manual Motor Starter ZX

Square D SMC Circuit Breaker Box FAF36030J new

Square D Mod 6 Size Sz 1 Fused MCC Bucket 30A 10HP 12"

SQUARE D KA26125BC 125 AMP I LINE CIRCUIT BREAKER (A6)

SQUARE D IF340201021 20 AMP I LINE CIRCUIT BREAKER (A6)

Square D LAP36400MB Circuit Breaker, 400 Amp, 600 Volt, 30 kAIR, Used-Guaranteed