171CCC96030

171CCC96030

171CCC96030

171CCC96030

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。

CJ1W-OD212数量8

CIMR-VA2A0004BAA数量6

PM150RSE120   1

8922-RB-IS    1

6SL3040-0MA00-0AA1

NERCAR-SIS-SIS-LED-520数量2

AO05 3

DI03 3

HBS01-CJC 3

HBS01-EPD 8

HBX01K02 2

SPK800-01 10

SPK800-04 5

ERCR-NS01-B004-E1   1个

PST105-600-70   1个

VPL-B1153F-PJ14AA   1 面价22980

6SE6440-2UD35-5FA1 数量1

6AV7241-3BB04-0FA0   1----------------

526-2BF00-0AB0  1

6ES7656-6CL30-1CF0   4

FC-302N132KT5E54H2BGCXXXSXXXXA0BXCXXXXD0 1

DI524??- 1 pc

DC523 – 1 pc

PM571-ETH-V14X – 1 pc

TM3AI2H  2

1FK7063-5AH71-1TC5-Z   Z=J09      1

BMEH582040C--------------

6AV6645-0AB01-0AX0-------------

CJ1W-ID232数量15

CIMR-AB4A0007FBA    数量：1

645-0AB01-0AX0  1

6AV2124-0QC02-0AX0 1个------------------

JAPMC-MC2300（SVA-01）40多个

UC4000-30GM-IUR2-V15   2

RVI78N-10CK2A31N-01000   2

RHI58N-011K1R61N-00500  2

RHI58N-0AAK1R61N-01024  4

RVI78N-10CK2A31N-02000  2

DR-4524    3

6ES7 322-1BH01-0AA0     1------------

6ES7 321-1BH02-0AA0      1----------

RDCU-12C NUIM-62C-----------

AFIN-01C----------

APOW-01C-------------

FS450R17KE3/AGDR-71C ----------

NAMU-01C--------------

ALCL-1X-X----------

AFPS-11C-----------

ACBU-A1-------------------

NTAC-02----------

AINT-14C---------

NDCU-33C-------------

No.: 8819630000  1个

Square D C3600 Data Panel # C-3600 Operator Interface

Square D 112T3H 112.5 KVA 480 X 120/208 Transformer - T80

New Square D 8903PBW11BV02 Lighting Contactor 225Amp / 120Vac / 3 Pole

Square D NA NA361000 3 pole 600v 1000 amp Circuit Breaker

SQUARE D SY/MAX 8030-CRM275 *FACTORY SEALED*

Square D I line panel board 800a 600v 480/277 48 circuit main breaker 3 phase 

Breaker box with 5 - 3 pole breakers Main breaker

NEW Square D I-Line Panelboard HCM50912N 225A 600v E1

Square D HU461DS (HU 461 DS) Heavy Duty Safety Switch- Lot of 3

SQUARE D LHL LHL363501291 LHL36350 AUX SHUNT BREAKER LHL36350-1291

Square D LI36600 (LI 36600) Circuit Breaker- TAKEOUT

SQUARE D SYMAX 8030-RIM-127 12 POINT RTD/DIRECT SER B

SQUARE D JDA 36175 175 AMP BREAKER

NEW SQUARE D MH MH26400 2 POLE 600V 400 AMP BREAKER

Square D 8903SXO13 Mechanically Held Contactor in NEMA 1 Enclosure *NEW*

Square D HCP14506 600 Amp 600 Volt I LINE Panelboard # E159

Square D 600 Amp MLO NF Panelboard With (2) 150 Amp Sub - E102

SQUARE D LHP36400MB 3P-400A-600V BREAKER

*SQUARE D POWERLOGIC SYSTEM MANAGER ONE TO ONE

Square D I-Line Panelboard 400 AMP CAT# HCN2354-4M

SQD Square D KC34150 150 Amp, 3 Pole I-Line Circuit Breaker

Square D MA3800F Circuit Breaker 600 Amp 600 V 3 Pole

Expedited shipping available

SEALED SQUARE D KHL36150 CIRCUIT BREAKER 

SQUARE D AC VACUUM CONTACTOR 8110 TYPE E 360A 5000V 

SQUARE D CIRCUIT BREAKER 3P 100 AMP 600V LXL36100 NEW

MAL36800 Circuit Breaker 800 amps

Square D LAL363501212 W/ AUX Switch Telemecanique 350 Amp 3 Pole 600 Volt 

Square D LAL363501212 W/ AUX Switch Telemecanique 350 Amp 3 Pole 600 Volt 

Square D 1000 Amp I-Line Circuit Breaker NA361000 600 VAC

1 NEW SQUARE D H324N 200AMP SAFETY SWITCH NNB

Schneider Square D TBX7 SOC.8L+8OS 0.5A WFD

SQUARE D HLL36150 NSPP HLL36150

Square D JJA36250 PowerPact Circuit Breaker 3 Pole, 250 AMP, 600 Volt

SQUARE D SYMAX SY/NET NETWORK INTERFACE 8030 CRM-560 8030CRM-560 8030 CRM560

SQUARE D SYMAX NETWORK INTERFACE 8030 CRM-560X 8030 CRM 560X 8030CRM560X

Square D Sorgel 75T6H-CT 75 kva Transformer

SQUARE D NFHL36200-AB-BD NSFP NFHL36200ABBD

Square D 8020 SCP-312

SQUARE D TELEMECANIQUE 208V/125HP, 230V/150HP, 460V/300HP SOFT STARTER ATS46C41N

MHP36600 Square D Circuit Breaker 3P 600V 600A TESTED & CLEANED

PAF361600DC1680 SQUARE D CIRCUIT BREAKER - DC Only 

Square D LI36400 I-Limiter Circuit Breaker *XLT COND*

Square D LC36400-LG5 Circuit Breaker, 400 Amp, 600 Volt, 65 kAIR, I-Line, NEW!

SQUARE D PA362000F 2000 AMP BREAKER

Expedited shipping available

MAL36300 Square D Circuit Breaker 3P 600V 300A MAL TESTED

Square D MHP36800 Breaker, 800 Amp, 65 kAIR, NEW!

Square D LC36400-LG1 Circuit Breaker, 400 Amp, 600 Volt, 65 kAIR, I-Line, NEW!

Square D motor starter

Square D LI36300 Circuit Breaker, 300 Amp, 600 V, 200 kAIR, I-Line, New Take Out

SQUARE D KAF3625021M1212 USPP KAF3625021M1212

SQUARE D MHL360008M USPP MHL360008M

SQUARE D H322DS NSPP H322DS

Square D LC36400-DG2 Circuit Breaker, 400 Amp, 65 kAIR, I-Line, NEW!

SQD Square D KH36125G I-Line Circuit Breaker Grey Label

SQD Square D KH36225G I-Line Circuit Breaker Grey Label

SQUARE D 8536-SFO1-V02-S USPP 8536SFO1V02S

MAL36350 Square D Circuit Breaker 600V 350A MAL TESTED

Square D Saflex SD78418 Busway Plug-In Unit 150 Amp Bus

Square D I Line HCP Panel Series E1 400 Amp LC 36400 Main Breaker 3R Enclosure 

Square D Mh Mh36700 3 pole 700 amp circuit Breaker 

NEW Square D MA MA36700 3 pole 700 amp circuit breaker

Square D NQOB8453041M NQOB Panelboard Series E2

NIB Square D ATV58NU41N4KU AC Drive 460/480V 3hp 3 HP 

SQUARE D TCSESM043F2CU0 NSFP TCSESM043F2CU0

Square D 8020 SCP-121

SQUARE D 3S1FIS NSFP 3S1FIS

NEW IN ORIGINAL BOX JJA36250

SQUARE D ECC21 NSPP ECC21

SQUARE D 8538SEA23V02S USPP 8538SEA23V02S

Square D MH36500 MH 500 Amp I-Line Circuit Breaker 500Amp 500 A 500A ILine

Square D Transformer 80KVA 575V Primary 290/230V Secondary 3phase

Square D Mh Mh36700 3 pole 700 amp Circuit Breaker with Chipped Crown

Square D 225Amp I-Line Panel Board HCN 3274-2N

QMJ364H SQUARE D Fusible Panel Mount Switch 200A 600V

Square D 24147 Multi 9 C60 Circuit Breaker

SQUARE D 312122007 NSFP 312122007

OHAUS Defender 5000 Square Scale D51P100QL2 D51P10QR1

OHAUS Defender 5000 Low Profile Square Scale D51P100QL5 D51P10QR5 D51P250QX5

SQUARE D PFCD4030F NSFP PFCD4030F

SQUARE D 8538-SDG16-V02CS NSFP 8538SDG16V02CS

SQUARE D HU661AWK NSFP HU661AWK

SQUARE D KAL361501021 NSFP KAL361501021

SQUARE D KHL36000M1590 NSFP KHL36000M1590

NEW SQUARE D S-48377 COMMUNICATION MODULE S48377

Square D MHL3612001426 Breaker, 1200 Amp, 65 kAIR, Shunt Tr, 2 Aux Sw, 

Square D MHL3612001380 Breaker, 1200 Amp, 65 kAIR, Shunt Tr, Aux Sw, 

Square D MHL3612001380-LG Breaker, 1200 Amp, 65 kAIR, Shunt Tr, Aux Sw, 

SQUARE D ME ME36800LI 3 POLE 800 TRIP AMP CIRCUIT BREAKER 100% rated

SQUARE D I-LINE PANELBOARD MLO 600 AMP 600V 3P HCN23656 NEW 

24 NEW SQUARE D 9422ARP11 CIRCUIT BREAKER MECHANISMS

SQUARE D DSL-206 DSL206 800A 800 A AMP AMPTECTOR 1-A MODEL LIG AIR BREAKER

Square D I-line 2 1000A 3P4W Busway AP2510G10ST AP2510G8 AP2510G6 Busbar

Square D 75 KVA 240/240 3 Phase Transformer

SQUARE D CIRCUIT BREAKER (MHL36100) ""

SQUARE D CIRCUIT BREAKER (MHL36800) ""

SQUARE D CIRCUIT BREAKER (MAL36600) " CONDITION"

SQUARE D CIRCUIT BREAKER (KCP34225G) W/GROUND FAULT SHUNT TRIP, 

Square D Breaker In Model 6 Bucket (MCC1050)

NEW SQUARE D 400AMP outdoor rated 600 Volt HU365R Disconnect Switch 3 phase 400

square d mal mal36600 shunt trip aux 600 amp breaker MAL366001380