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由于PLC的安裝地點是在橋式起重機的電氣控制箱上，處在強電電路和強電設備所形成的惡劣電磁環境中。要提高PLC控制系統可靠性，一方面要求PLC生 產廠家提高設備的抗干擾能力;另一方面，要求工程設計、安裝施工和使用維護中引起高度重視，多方配合才能完善解決問題，有效地增強系統的抗干擾性能。

ALLEN BRADLEY 2711-TC1X

ALLEN BRADLEY 7300-AVPT1

ABB 1N0948

GE FANUC IC693CHS391L

RELIANCE 0-51874

KEYENCE OP-5148

ALLEN BRADLEY 20BD077A3ANNAND0

OMRON C200H-0D212

ALLEN BRADLEY 1395-A66-D1-P11-P50

ALLEN BRADLEY MPL-B980C-MJ22AA

CROUZET GNR 25DCZ

ALLEN BRADLEY SLC 500 1747-L511

MITSUBISHI MR-J4-10B-RJ

CORTEC 405GS.10A

OMRON 3G2A3-IA221

CUTLER-HAMMER HLA3600F

BOSCH SM 5/10-TA

DANFOSS AKS 3000 060G5606

REXROTH 5460027132

GENERAL DS3800HLND1C1C

SMC SY3140-5LZ-01T

SIEMENS SIMODRIVE 6SN1145-1BB00-0EA1/6SN1162-0BA02-0AA1

GE FANUC IC660BBD101

CROUZET GNR 25DCZ

1021199-100

ALLEN BRADLEY 1336F-BF75VAA-DS-HNS1C

HOFFMAN A36SA3210LPPL

DYNAC D2V018NF1006

FESTO MSFG-24/42-50/60

SOCAPEL 024.7719

SIEMENS MD63F800

HEIDENHAIN 296434LN

FESTO DMM-16-10PA

ALLEN BRADLEY 1336S-B040-AA-EN4-GM1-HA2-L6E

GE 4117J79G1

GALVO 10MM CL-APERTURE

BN-04MHFCC61BN

BRINKMANN 022663429

ALLEN BRADLEY 1394-SJT10-D

HOLOPHONE CK15AHP27A

TEKNIC M-2321P-LN-16D

ALLEN BRADLEY 1336F-B060-AN-EN-HCSP-L6

EFECTOR OM0010

GUARDIAN A430-056563

INDRAMAT RAC3.5-150-460-A01-W1

DANFOSS 042N7520

BALLUFF BES-M08EG1-PSC15A-S04G-W

KEP MC2A3

ABB 3HAB8413-1

FANUC A02B-0120-C122/TAR 鍵盤

WHITNEY SS-45S12

ALLEN BRADLEY SLC 500 1747-L511

HONEYWELL X101570-SDS

SICK 6010075

ALLEN BRADLEY 2300-SPE04A

ALLEN BRADLEY 2711EK14C6X

SIEMENS MD63F800

SIEMENS 1FK7105-5AF71-1KH3

APD-192G088-6

ALLEN BRADLEY 2711E-T10C15X

STI MS4312B-2

PERCEPTRON S0600-X0108-Y0147-Z0310

UBD2U08D25DUNNZ49

ABB RS485

FANUC A06B-6053-H100

FANUC A16B-3200-0210 CPU

MAC PME-871DABE

XYCOM XVME-230

GE DS200PCCAG8ACB

MODICON AS-P120-000

ASI DATAMYTE 953-ENSUS

LEUZE RK-72/2-200

ALLEN BRADLEY 1771-IND

SYNTRON SD-2637-13B

ABB 3BSE016600R1

HAUG 01.7810.000

SNAPLATROLL 14.115.12.1.0

ABB RS485

PENBERTHY 64803-520

MARKEM ENR0828252

OMEGA PROBE PHE-5460

KEP MC2A3

CROUZET GNR 25DCZ

ALLEN BRADLEY 1489-A3D080

INDRAMAT TBM1.2-040-W1

RELIANCE 57401-1B

EATON V201K6CJZ1

ALLEN BRADLEY 20A D 052 C3

RELIANCE 705315002R

QUAD TECH 57018

KOLLMORGEN SERVOSTAR606

GENERAL DS3815PFXA1E1A

INDRAMAT MDD112C-N-020-N2L-130PB0

INGERSOLL 39853783

GAST K247

PERSKE KRSR 35.7-2

ALLEN BRADLEY 2711E-T10C15X

REXROTH 4WE6W60/EG24N

ROSEMOUNT 1151DP5S22B1

ALLEN BRADLEY 1794-AND

IEE 36533-01

SIEMENS SIMOVERT 6SE7028-6EV85-1AA0

ISHIDA LOAD CELL TLC-6L

TURCK C3-A-39-X

DS3800NMEC1J1J PC

ALLEN BRADLEY 20AE022A0AYNNNC0

ALLEN BRADLEY 2122EB-L994531/7

BALDOR CDP3575

RELIANCE 0-60002-5

EMERSON DXM-490CB

INDRAMAT CCD01.1-KE01-01-FW

SEW MDX61B0110-5A3-4-00

KFD2-UT2-EX2

476-0253-644

ALLEN BRADLEY 1734-AND

P3PUH10CA1

EMERSON SP4401-LED

ITT LINEAR HYDRAMOTOR NH95T4673X0P193

MAC 42A-AMA-000-GEDA-1HA

OMRON 3F88L-CG003S

6ES5921-3WB14

GENERAL IS200IVSHG1ABB

FWA-ECODR3-FGP-03VRS-MS

BINKS 102-2410

ALLEN BRADLEY 1336S-BX060-AN-EN

PARKER MPM1902CSJ7G3N

TB WOODS XF2001-0C

LEYBOLD TM21

FANUC A20B-2002-0520/07A

SIEMENS 6EP1333-3BA00

GENERAL 193X379ADG01 36B605245AB-A

FANUC A06B-6087-H145

GENERAL DS3800NOAB1C1B

SICK DME3000-111P01 LASER

ALLEN BRADLEY 20BE052A0AYNAND0

SCHNEIDER TSXP57353LAM

SIEMENS TM-E30C46-A1

FANUC A02B-0281-C081

BAILEYIMMFC04

HONEYWELL X101570-SDS

FESTO ADVU-20-10-AP-A

GE FANUC IC660BBS103L

ALLEN BRADLEY 1764-LSP

ABB 3HAC 022286-001/05

LIQUID CONTROLS M-5-3 0788700-062

ALLEN BRADLEY 2711-T10G8

BENTLY 16699-20-01-02

EGS SOLA 23-28-275-6

ALLEN BRADLEY 1336T-B040-AA-GT1EN

ELAU C600/10/1/1/1/00

KEYENCE CZ-41

DATALOGIC PMC80

ALLEN BRADLEY 1397-B040R

SIEMENS SINAMICS 6SL3130-7TE23-6AA3

ALLEN BRADLEY 8520-3S5A-BAT-EX4-S-1-2-3-5-7

EATON 032.583

REXROTH INDRAMAT HVE 03.2-W030N

INDRAMAT RAC2.2-200-460-A00-W1

ABB CI670* 3K 3BHT300017R1/4

REXROTH 4WE6W60/EG24N

HONEYWELL S7800A1001

BODINE 48R6BFCI

GEMS 2200BG6F00223DA

GM EDS ST/2000 99-3010-1021

TOSHIBA VFS9-4055PL-WN

MEASUREX 05292600

AB 960364

IC3600AOAJ1A 板卡

MICRO DS025S119SU

LENZE D-32696

PARKER D51VP071C

SIEMENS 6ES7361-3CA01-0AA0

AIRPAX UPL11-5-62-502

FANUC A06B-6088-H001

McCROMETER VS02-36

HONEYWELL K3P02B6

ALLEN BRADLEY 1772-LP3

DICKSON TH803

ALLEN BRADLEY 2711-K5A15L1

ABB S271- K10A

INDRAMAT CCD01.1-KE01-01-FW

ALLEN BRADLEY 1333-YAB

M356-L1A

ALLEN BRADLEY 2090-XXNPMF-16S07

5382-170-002

FANUC A06B-0314-B142#7075

ATLAS COPCO 4240-5009-00

HR 27B50F-7G05G-995

KEP MC2A3

ZOOK DX461-1-34-33

FISHER 289H-43

HONEYWELL R8845U

SIEMENS 6EP1436-1SL11

1746sc-INO4vi

ALLEN BRADLEY 1734-OW4

VERSA CSG-4222-043-HC-A120

SIEMENS 6SE7032-7EB87-2DA0

M356-L1A

MITSUBISHI MELSEC-Q QY81P

LENZE 433 PLC PCB

HONEYWELL 51401288-100

ALLEN BRADLEY 700-C200-A1

CUTLER HAMMER SVX050A1-4A1N1

K TRON PCM23401A-SPEC 0223

HONEYWELL T822K1034

ALLEN BRADLEY 2711-KC1

SQUARE D FH36060

STRAHMAN M75

CCI VT25-181-10/XX

SIEMENS 6ES7658-5AA17-0YA5

SEW MAS51A030-503-50

LES3600LS 600 AMP

ROSEMOUNT 8732EST1A1N0M4 W/

SWAGELOK SS-400-1-4 (25 PCS)

INDARMAT MAC112C-0-HD-3-C/130-A-0/S005

RODIX VF-39 121-200-0764

LEESON C4D17FK3E

INDRAMAT TVD 13-08-0

GENERAL ELECTRIC DS3815PCBA1C1A

HONEYWELL C7061A 1012

WATLOW VN408A04XA

3-531-4066A

ALLEN BRADLEY 20-750-2263C-1R2T

FANUC A06B-6089-H106

SIEMENS 3TF4211-0A

YASKAWA CACR-IR30SFB

GENERAL ELECTRIC DS3820MAUC1A1A

ALLEN BRADLEY 1752-L24BBB

KEYENCE CZ-41

DAGE 4000PA

SIEMENS 6RA2418-2FV62

INDRAMAT MAC115B-2-GS-4-C/130-A-0/WI519LV/S001

LITHONIA TWH 400M

PARKER/EUROTHERM 690+0040/500/1BN

ALLEN BRADLEY 1771-P7

ALLEN BRADLEY 705X-T0D

SMC D-M9N

BALDOR VS1MD40P5

ALLEN BRADLEY 1336S-B030-AN-EN3-L5E

OLYMPUS SZX-ZB9

GE IC600CB526R

HONEYWELL UDC2500-EE-0L00-200-10000-E0-0

YOKOGAWA SC42-SP34 CD-2

MILLTRONICS CW-02

EMERSON 810721-15

FANUC A06B-0571-B074/7008

PARTLOW CONTROLLER 2211101

SIEMENS 6ES7 953-8LM20-0AA0

MARATHON X70410464010

FANUC A06B-6059-H215#H582

變頻器的輸入信號中包括對運行/停止、正轉/反轉、微動等運行狀態進行操作的開關型指令信號。變頻器通常利用繼電器接點或具有繼電器接點開關特性的元器 件（如晶體管）與PLC）相連，得到運行狀態指令，如圖1所示。 在使用繼電器接點時，常常因為接觸不良而帶來誤動作；使用晶體管進行連接時，則需考慮晶體管本身的電壓、電流容量等因素，保證系統的可*性。在設計變頻器 的輸入信號電路時還應該注意，當輸入信號電路連接不當時有時也會造成變頻器的誤動作。例如，當輸入信號電路采用繼電器等感性負載時，繼電器開閉產生的浪涌 電流帶來的噪音有可能引起變頻器的誤動作，應盡量避免。圖2與圖3給出了正確與錯誤的接線例子。 當輸入開關信號進入變頻器時，有時會發生外部電源和變頻器控制電源（DC24V）之間的串擾。正確的連接是利用PLC電源，將外部晶體管的集電極經過二極 管接到PLC。如圖4所示。

BRANSON 947MA

GE FANUC IC660BBD101

SIEMENS 6ES5244-3AB31

ELAU AG PACDRIVE C400/10/1/1/1/00 13130261

AMACOIL 3RG30/35MCRFX

UNIVER DB-0502