描述

2、PLC控制系統(tǒng)的輸出電路設計

依據牛產工藝要求，各種指示燈、變頻器/數字直流調速器的啟動/停止應采用晶體管輸出，它適應高頻動作，并且響應時間短；如果PLC系統(tǒng)輸出頻率為每分鐘6次以下，應首選繼電器輸出，采用這種方法，輸出電路的設計簡單，抗干擾和帶負載能力強。

3、PLC控制系統(tǒng)的抗干擾設計

一般采用以下幾種方式。

(1)隔離：由于電網中的高頻干擾主要是原、副邊繞組之間的分布電容耦合而成，所以建議采用1：1超隔離變壓器，并將中性點經電容接地。

(2)布線：強電動力線路、弱電信號線分開走線，并日．要有一定的間隔：模擬信號傳輸線采用雙絞線屏蔽電纜。

(3)屏蔽：一般采用金屬外殼屏蔽，將PLC系統(tǒng)內置于金屬柜之內。金屬柜外殼可靠接地，能起到良好的靜電、磁場屏蔽作用，防止空間輻射干擾。

歐美品牌停產的，常用的“PLC”備品備件

我司產品應用于以下領域：

1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》

2,《智能平鋼化爐系統(tǒng)制造》

3,《PLC可編程輸送控制系統(tǒng)》

4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》

6,《化工廠藥液恒流量計算機控制系統(tǒng)》

7,《電氣控制系統(tǒng)》造紙,印染生產線,變電站綜合自動化控制系列

本特利，英維思，伍德沃德，?？怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂，ACSO，力士樂等各大品牌的DCS系統(tǒng)配件，機器人系統(tǒng)配件，大型伺服系統(tǒng)備件。

CONVUM VACUUM GENERATOR,TYPE CV-20LSCK

Convum MPS-V2R-G Vacuum Sensor

PARKER/CONVUM VACUUM AIR GENERATOR CV-30AHSN

Lot/4 Convum PS-50-F Vacuum Suction Pads

1 NIB CONVUM MPS-V3RC-GHA VACUUM SENSOR MPSV3RCGHA

PARKER CONVUM VACUUM SOLENOID VALVE MC2S10HSZM24B5N

Convum Vacuum Solenoid CVA-15HS

CKD CONVUM 3/8″PORT VACUUM FILTERS VF-6

CKD CONVUM 1/4″PORT VACUUM FILTERS VF-5

Convum PF-50 Vacuum Suction Pad

CONVUM VF-5 VACCUM GENERATOR FILTER CV-15,MCA-10/13

CONVUM FILTER VF-5 MYOTOHU COMPRESSOR FILTER 1/4 NPT

Parker Convum TYS-20B-30 Bulkhead Level Compensator

Myotohu Convum CVA-15QS Vacuum Actuator

CONVUM CVK-15HRZD PRESSURE SOLENOID VALVE CONVUM

Parker Convum CV-25HSN

CONVUM CVA-15HS35GDN NSFP CVA15HS35GDN

CONVUM MYOTOHU CVT05HS

PARKER CONVUM VACUUM SOLENOID VALVE MC2S07HSZM24B5N

CONVUM CV-15HS NSFP CV15HS

Convum Pneumatic Valve Manifold CVK-15HRZD Lot of 2

CONVUM CVA-15OS USPP CVA15OS

CONVUM CVA-15QS USPP CVA15QS

DNS CONVUM SENSOR,DIGITAL 2-AE-J0043 D4M5-GHA-D4

CONVUM CV-10HSCK NSFP CV10HSCK

CONVUM VF-3 VACUUM FILTER 1/8″

Convum APS030-PNP-SA2 Vacuum Sensor

CONVUM VACUUM FILTERS VF-6

CONVUM CV-10LS USPP CV10LS

Convum Manifold Solenoid Valve CVK-15HRZD 24V MVS SMC

CONVUM CVA-10LSB NSPP CVA10LSB

PARKER CONVUM PF-120D VACUUM CUP PAD

PARKER CV15HSN CONVUM VALVE CV-15HSN 1/4 INCH 1/4″

Convum Myotoku CVK-15HRZD 24BD Pneumatic Solenoid(794)

CONVUM PRESSURE DISPLAY SWITCH MPS-71E-G-D5

Convum Parker PFYK-25-U Vacuum Suction Cups

MYOTOKY LDT.CVA-15HSA CONVUM VALVE

Parker Convum CEK27HSZC24PBLN Vacuum Pump Generator

Convum Vacuum Generator Pump CV10HSC

Convum Vacuum Generator Pump CCV10HSCK NEW

2 Convum Parker PFYK-25-SI Vacuum Suction Cups

PARKER generator CONVUM VACUUM PUMP PA244-RV3.5

MYOTOKU/CONVUM CV-10LS GENERATOR 10MM LOW VACUUM

MYOTOKU/CONVUM CV-10LS GENERATOR 10MM LOW VACUUM

CONVUM MVS-030-W NSFP MVS030W

CONVUM SENSOR,VACUUM FOR SPIN SD MPS-R3S5-GHA-D

DNS CONVUM?SENSOR,PRESSURE 2-AE-J0076 P3M5-GHA-D

CONVUM CVK-20HSABC-24B?L USPP CVK20HSABC24BL

DNS CONVUM SENSOR,DIGITAL SPI 2-AE-J0012 R3S5-GHA-D

Myotohu Convum MVS-030 Vacuum Switch

MYOTOKU/CONVUM CVF-1-10LS GENERATOR 1MM

CONVUM MPS-V2R-C NSFP MPSV2RC

CONVUM MPS-P1N-PC NSFP MPSP1NPC

DNS CONVUM PRESSURE SENSOR ASSY 2-AE-J0067 R3S5-GHA-D

CONVUM CYLINDER TKY-0-4.5X3

Convum Vacuum Switch CVA-D,CVA-10,CVA-V3B

Myotoky LTD.Model:CVA-10HR-VDN-24?B Convum Valve

4-Convum Vacuum Technology Valves CVK-15HSZC 24 VDC

MYOTOKU/CONVUM CVF-1-10HRAB/MV?S-030-AB VAC SENSOR

MYOTOKU CONVUM CVR Vacuum Switch

CONVUM CVF-2-05HS VACUUM SWITCH SOLENOID VALVE

CONVUM MPS-V2R-PGA NSPP MPSV2RPGA

Parker MPS Convum PRESSURE Switch P6N-PG(11)

Parker Convum CVX-0260-B-E0S-?DN PA244-RV3.5 Vacuum Pump

MYOTOKU/CONVUM VF-3 VACUUM FILTER

CONVUM MPS-V3RC-G-M VACUUM PRESSURE SENSOR

Parker Convum Vacuum LED Switch MPS-V2N-PC

Parker Convum CVX0260BE0SDNNA Vacume Pump PA244-RV3.5