191920-T14

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大量現貨,當天順豐發(fā)貨!
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描述

191920-T14

外部安全電路
為了確保整個系統(tǒng)能在安全狀態(tài)下可靠工作,避免由于外部電源發(fā)生故障、PLC出現異常、誤操作以及誤輸出造成的重大經濟損失和人身傷亡事故,PLC外部應安裝必要的保護電路。
急停電路。對于能使用戶造成傷害的危險負載,除了在控制程序中加以考慮之外,還應設計外部緊急停車電路,使得PLC發(fā)生故障時,能將引起傷害的負載電源可靠切斷。
保護電路。正反向運轉等可逆操作的控制系統(tǒng),要設置外部電器互鎖保護;往復運行及升降移動的控制系統(tǒng),要設置外部限位保護電路。
可編程控制器有監(jiān)視定時器等自檢功能,檢查出異常時,輸出全部關閉。(http://www.diangon.com/版權所有)但當可編程控制器CPU故障時就不能控制輸出,因此,對于能使用戶造成傷害的危險負載,為確保設備在安全狀態(tài)下運行,需設計外電路加以防護。電源過負荷的防護。如果PLC電源發(fā)生故障,中斷時間少于10秒,PLC工作不受影響,若電源中斷超過10秒或電源下降超過允許值,則PLC停止工 作,所有的輸出點均同時斷開;當電源恢復時,若RUN輸入接通,則操作自動進行。因此,對一些易過負載的輸入設備應設置必要的限流保護電路。
重大故障的報警及防護。對于易發(fā)生重大事故的場所,為了確??刂葡到y(tǒng)在重大事故發(fā)生時仍可靠的報警及防護,應將與重大故障有聯(lián)系的信號通過外電路輸出,以使控制系統(tǒng)在安全狀況下運行。

產品承諾:
保?證?全新原裝進口,
保?證?安全準時發(fā)貨,
保?證售后服務質量,
優(yōu)勢價格,大量現貨。

主營DCS系統(tǒng)配件
機器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質保 大量現貨? 國內實力庫存商家

Cisco Starent ST16, Ethernet 1000 SX, EDC 8GB – NEW!
14 day warranty!

TTC Acterna Centest 650-S Wideband Remote Test Unit

Agilent 81110A Pulse-/ Pattern Generator w/ 2 x 81111A

Tenney Ten TTRC Environmental Chamber Micro Tenn
TempGard III

Nortel 8672ATMM 2 Slot MDA 8600 Module DS1304009-GS 05

Westinghouse PB22500F Frame 2 Pole 2500A Max 600 VAC

Agilent N5766A System DC Power Supply LXI 40V/38A,1520W

Kentrox CrossPATH 3G 77750 8-Port T1 Cross-Connect NEW!

MultiRad 860 3.85 OD HiResolve Film Digitizer Model FD

Tenney Jr. Temperature Environmental Chamber w/ wheels!

Cisco ASR5K-PSC-K9 600-00-3025 Packet Service Card 16G!

Sycamore Networks 4xOC-48/ STM-16 SIC-T 500106 NICE!

Sycamore Networks 1xOC-192/ STM-64 WIC-T 501370 NICE!

Motorola CPCI-745 CompactPCI 1 GB RAM, 40 GB HD, 1.6GHz

Telenex AR Interview 7700 Turbo INT-951-6-1 NICE!!

Tekelec TDM-BTI 870-0774-15 REV D DNS320JDAA 36GB

LOT OF 12 TEKLOGIX 7025-ILR Handheld Terminal AS-IS

Marconi Counter Power Meter CPM 20 w/ IFR 6910 Sensor

Rhin-O-Tuff PC-2000 PC-2004 Manual Punch, Coil Inserter

Tekelec EAGLE STP MDAL MOD 870-0773-08 REV D

Tekelec HMUX 870-1965-01 REV H DNS3BB0BAA

Tekelec GPSM-II 870-2360-01 REV J DNS3HN0BAA

Harris Stratex ODU 300, 11GHz Outdoor Microwave Radio

Nortel 8672 ATM DS3 DS-3 MDA Card for Passport 8600

Fowler 54-555-020 Set 5 HDS .78-.236″ Gauges/Transduc?er

Glenayre Versera SMU TIGPR2U 2.4GHz Xeon HP A9862 In

Sun Netra 1280 Server

Juniper RE-600 RE 600 M20 Routing Engine 256MB 40GB HD

HP Hewlett Packard 3561A Dynamic Signal Analyzer NICE!

Black Box ServSwitch Wizard USB Extender P/N ACU5050A

Cisco PWR-C45-1400DC-?P Catalyst 1400W DC-P

Waters Torque Watch Gauge Model 366-2M

Hewlett Packard HP 5370 Universal Time Interval Counter

Nortel 8672ATME 2 Slot MDA 8600 Module DS1304008 05

HP Hewlett Packard 3562A Dynamic Signal Analyzer NICE!

HP Proliant DL585 DL 585 8GB Ram, 4 x 72.8GB Hard Drive

Transition Networks Industrial Switch SISTF1010-180

HP BRSLA-0402-DC LTO Ultrium 3

Sun Microsystems Netra 20 (N28-USF2-4096C?V-IP) Server

HP Hewlett Packard 6634B System DC Power Supply

Starent / Cisco ASR5K-011GE-SX-?K9 Ethernet 1000 SX
P/N: 600-00-5035

Harris Microstar 201-90136-109 IDU 8T1 O/W *UNUSED*

Puregas P550 Air Dehydrator with Humidistat

Telenex AR Interview 8800 Turbo INT-951-4-2 PARTS!

Cisco WS-X6516-GE-TX 16 PORT 1000 BASE-T GE

IBM Proventia G1200-1-PB Intrusion Prevention Appliance

EDC 8GB Network Module Packet Accelerator Service Card

Bryant 113RNA018-A Air Conditioner – NICE! AS-IS

ISCO RF2 07300-150 Filter / LNA Module

LOT of 8 Gateway 200ARC 200 ARC Laptop- PARTS & REPAIR

Cisco WS-C4006 Switch Chassis

Cisco MGX-RJ45-FE Ethernet Back Card

Sun CP1500-440 Blade System Controller CPU

Intel ZT5524A1A w/ VMIPMC-5565 & PL-XPL-S23-12 Gbps

GarrettCom Magnum 6K25 Managed Fiber Switch w/ guide

T-COM 440B/T-ACE w/ 52C STS-1/T3 Sonet Analyzer

Amrel PPS 18-4D Programmable DC Power Supply

D.O. Industries Navitar Zoom 6000 6.5 Zoom

Proxima 2810 LCD Projector w/ cables, case, & manual

T-Berd 211 T-Carrier Analyzer

HP 3314A Function Generator .001 Hz – 20 Mhz NICE!

1U DLTVS160 New out of box!

Keithley 195 Digital Multimeter Option 1950 W/ IEEE 488

Sun 370-1366-01 96 PIN Loopback Terminator Lot of 3

JFW 50F-003 3dB Attenuator N-Male to Female Lot of 25

ARTESYN KATANA 3750 P/N 10003552-04

HP TSU J3401-60003 Telecom Signaling Unit

Radware FireProof Application Switch II 5G+16FE 128M

Nortel NTRX51BL Gateway Controller DMS-100 DMS 100

Nortel NTRX50NB 04 CPU_400MHZ 512MB ENCEL6RAAA

HP 5315B Universal Counter w/ Option 003 & 001

Sun 501-5979-05 Gemini Rear Dual SCSI REF Card

LOT OF 10 Life Source UA-767V Blood Pressure Monitor

Wilcom T308 PCM Channel Access Kit

Siemens JXD22B300 Circuit Breaker
Used, Type JXD, 2 Poles, 300 Amps, 240 Volts

Westinghouse Safety Switch GFN324N 200 AMP
Used, not tested

HP Hewlett Packard 54001A 1GHz 1.5 meters Probe UNUSED

Bird Termaline Coaxial Resistor Model 8141 250 Watts

HP ProLiant DL320 G3 (372710-291) Server 3.4GHz 160GB

Hewllett Packard HP 00428-62101 Current Probe For 428B

Cisco Catalyst 3550 WS-C3550-24PWR-?SMI

Lucent Technologies PDP 1 2C +24VDC, 848849774

HP 8482B Power Sensor – Won’t Calibrate AS-IS

CTC T-STAR 1000 T-Carrier Analyzer/Simula?tor – PARTS

Basler Electric BE1-87G Generator Differential Relay

Fluke 8840A Multimeter

HP Hewlett Packard 3312A Function Generator

Wavetek 4MHz Pulse/Function Generator Model 187

HP Hewlett Packard 5315 Universal Counter

Cisco WS-X6516-GBIC 16 Port Gigabit Ethernet Module

Cisco WS-X4013+ Supervisor Engine II-Plus

HP 775D Dual Directional Coupler 450-940MHz

Sun 540-1558-01 Serial Loopback Tester Lot of 2

Cisco MGX AUSM-8T1 /B

Honeywell Rubicon Instruments 1071 Wheatstone Bridge

HP 156 MTS CERJAC Sonet Maintenance Test Set – PARTS

Cisco MWR 1941-DC Mobile Wireless Edge Router – NEW!

420LTO LTO Ultrium 2 SCSI Internal Tape Drive

Otari DP-405OE-Z3 3-Module Cassette Copy Machine
Used, powers on

Cisco MWR 1941-DC Wireless Router Lot of 2

Kentrox CrossPath 4 Power Supply Module 74020 NIB

Eastern Research DNX-1U

Network Associates Sniffer S4000 Model E548 AS-IS

HP Hewlett Packard StorageWorks MAS 30 359645-B21

Kurz Air Velocity Meter Model 444 – Complete Kit NICE

Advanced Signal Surveillance SIGNAL Pro COMPLETE – NICE

110L Autoloader 270018-1378 New Out of Box!!

Qty 4 Tektronix P6133 10X 1.3M Voltage Probes

Channel Plus model 5445 quad digital modulator pII

Asurent Micro Flex 5704 PMFX5704-002 w/ CXM, QCM, ADM

HP 3478A Multimeter – Passes Self Test

GarrettCom Magnum P62F Hardened Ethernet Switch

Cisco WS-X4306-GB 1000 Base-X Switching Module

Agilent HP POD Logic Analyzer Analysis Probe Lot of 9

SLR5 4/8GB P/N 10138-B02 External Tape Drive

專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊

PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質保 大量現貨? 國內實力庫存商家


選擇深圳長欣,選擇放心,售后無憂大量現貨,當天順豐發(fā)貨!
主營: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。

先介紹幾點經驗。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個大概,以便學習編程時查找);
2、由位控邏輯入手,逐漸增加定時、計數等條件,把或、與、非關系理順;
3、進而練習整數運算、實數運算、類型轉換;
4、量程轉換、PID調節(jié)回路的建立及P、I、D參數的理解(最好是有個物理回路驗證,比如變頻器+電機+測速傳感器);
5、循環(huán)、順序、跳轉等程序控制(盡量避免跳轉,非跳不可時也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅動器系列為主攻。各位電工朋友可根據自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學會一種至于其它的學習起來也就簡單了。