AB1771-AF1厂家直销

AB1771-AF1厂家直销

AB1771-AF1厂家直销

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系统在设计时应使水泵在变频器和工频电网之间的切换过程尽可能快,以保证供水的连续性,水压波动尽可能小,从而提高供水质量。但元件动作过程太快,会有回流损坏变频器。为了防止故障的发生,硬件上必须设置闭锁保护,即1Q与4Q,2Q与5Q,3Q与6Q不能同时闭合。
2 系统软件设计
控制系统软件是指用梯形图语言编制的对3台泵进行控制的程序。它对3台泵的控制,主要解决系统的手动及自动切换、各元件和参数的初始化、信号及通讯数据的预处理、3台泵的启动、切换及停止的条件、顺序、过程等问题。
当变频器输出频率达到频率上限,供水压力未达到预设值时,发出加泵信号,投入下1台泵供水。当供水压力达到预设值,变频器输出频率降到频率下限时,发出减泵信号,切除在工频运行方式中的1台泵。系统刚启动时,情况简单,首先启动一号泵即可。但考虑3台泵联合运行时情况复杂,任1台或2台泵可能正在工频自动方式下运行,而其他泵则可能在变频器控制下运行,因此必须预先设定增减水泵的顺序。即获得加泵信号后,按照1号泵、2号泵、3号泵的顺序优先考虑。获得减泵信号后,按照3号泵、2号泵、1号泵的顺序优先考虑。
为了防止故障的发生,软件上也必须设置保护程序,保证1Q与4Q、2Q与5Q、3Q与6Q不能同时闭合。在加减泵时必须设置元件动作顺序及延时,防止误动作发生。

Danotherm CBH 265C 2R8 10% 400 Résistance de FREIN frein RESISTOR
USED ABB DSQC 256A Sensor Module Board 3HAB 2211-1/1
SIEMENS 1FT5074-0AC01-2 Servomotore 1FT50740AC012
ferrocontrol Servoverst?rker SVC 266 V42 SVC266V42
NIB ROSS Shutoff Sleeve Valve 912K77 _ 3/8"
Sanyo Circuit Board PCB A7-1-20111-1 _ A71201111 _ A7-1-2O111-1 _ A71201111
BALLUFF BIS-C-602-019-650-03-KL2 Radio Fréquence
USED Allen Bradley 1771-DCM/B Direct Communication Module B03
New Cisco AIR-RM3000AC-A-K9 Aironet Access Point 3600 802.11ac Wave 1 Module
OKUMA Opus 5000 E4809-032-452-C Board CN-E0-2
KEARNEY & TRECKER OPERATOR PANEL 1-2127901_12127901_ASSY 1-2128401
Logoswed System AB LX 1124P_LX1124P_Version 1.0_Series 92062_Lev. datum 930823
Endress+Hauser Silo mètres FMX 570 FMX570
Compact Disjoncteurs Compact NS1250N 3002241898 NS1250 NA NSB1250 N
SIEMENS 3RT1046-1AP04 SCHüTZ 3RT10461AP04 45kw
Siemens 6ES5 312-5CA11 6ES5312-5CA11 S5 IM 312-5C Expansion Unit Interface
*NIB*_ Mitsubishi Motor Breaker MB-30-CB_MB30-CB_MB30CB_7.1 Amp_3 Pole_250V
OMRON SAFETY CONTROLLER G9SP-N10S_G9SPN10S
Reo ORIFICE M3Z Transformateur toro?dal variable 156 VA
Siemens 6ES5420-4UA12 6ES5 420-4UA12 SIMATIC S5 420-4 Digital 24V DC Input QTY
Allen Bradley 2094-XL75S-C2 /A Line Interface Module 230/460V 75A
USED Allen Bradley 4100-REC/B Resolver Encoder Recorder
euchner TZ1RE024BHA-C1903 Interrupteurs De Sécurité 082096
USED Bailey Controls IMDSO04 infi 90 Digital Output Slave Module Card
*NEW in Box* IFM Efector SI0508 Flow Sensor SI 0508 _ SID10ABBFPKG/US-100-IPF
Nordac SK10000/3 Inverter Convertitore di frequenza
SIEMENS 6DD1681-0EB3 simadyn 6DD1-681-0EB3 probado
s+b 5310 5310-10-0-111-7-00 Thermostat De Contr?le De Température
Nord 0,37 kw 127 min gearmotor sk 71L-4 Gearbox
New Siemens 6FM1726-3AA00 6FM1 726-3AA00 SIMATIC S5 WF726A POSTTTIONing Module
Showa Motor RGV-50-RA15_RGV50RA15_RGV-5O-RA15_VTFO-K_VTF0-K_3 Phase, 91986
Allen Bradley 1747-SDN /B SLC 500 DeviceNet Scanner FRN 4.001
Siemens 6ES7315-6FF01-0AB0 6ES7 315-6FF01-0AB0 S7-300F DP Controller CPU 315F-2
Siemens 5SY6503-7 5SY6 503-7 SENTRON Miniature Circuit Breaker 1P+N 3A 230V
schiele SRN 241357134 2.413.571.34
ABB ROBOTICS SERVO DRIVE CONTROLLER_3HAB8101-8/16B_3HAB8101816B
Siemens CPU 928B 6ES5928-3UB11 6ES5 928-3UB11
New Sealed Siemens 6ES7432-1HF00-0AB0 6ES7 432-1HF00-0AB0 SIMATIC S7-400 Output
USED Fanuc A16B-1211-0750/02A I/O Board
SIEMENS 1 FT5074-0AF01-0-Z Wattometro 1FT50740AF010Z
siemens simatic 6GK7443-1EX11-0XE0 NET CP ETHERNET 6GK7 443-1EX11-0XE0
USED Banner PProCTL PresencePLUS Pro II Controller Module
New Sealed Cisco HWIC-4T GENUINE 4 Smart Serial Port High-Speed Interface Card
Toshiba 4F Transistor A50L-1-0221_A50L10221_A5OL-1-O221_A5OL1O221_IGBT_150A
Jotron PHONETECH CIS-3101 Commande Intercom Système
Siemens Minuteries 7PU1540-AM20 , 7PU15
New Yaskawa CIMR-VU4A0004BMA V1000 AC Drive 380-480V 3-Ph 4.1A 2HP Qty
Fuji Circuit Board PCB I/O Module_2416N_920101-0
ADDI-DATA PA 3500-8 ISA Digital Output Board 8 Digital Outputs 24V DC
Leister Réchauffeur d'air 3300 état Parfait
New Cisco WS-C3750E-48TD-SD Catalyst 3750E Gigabit Ethernet Switch DC Power
Rexroth Ceram Valve GS-030050-03340 _ GS03005003340 _ GS-O3OO5O-O334O
simatic 6es5 332-0AA11 TEST ADAPTATEUR 6ES5332-0AA11 testmodul
Servomotor Rexroth MAC092B-0-QD-4-C/095-B-1/WI520LV MAC092B0QD4C/095B1/WI520LV
ABB PROCONTIC CS 31 ICSO08R1 I/O Remoto Unit CS31 ICS008R1
Horyu ENG Hi-Pric PI Board CNC 4001K-108AA_4001K108AA_4OO1K-1O8AA_4OO1K1O8AA
Gefeg Neckar 8 vatios 178min motorreductor
NEW Sick WT27L-2S930A01 Sensick Photoelectric Proximity Sensor
Okuma_LC30-2SC_Okuma OPUS 5000 II SVP BOARD II_E4809-436-016-D_1911-1570-44-31
Eurotherm 620 Vector Drive 45KW 60HP 62STD/0750/400/0020/UK/ENW/0000/000/BO/000
Siemens 6EP1437-1SL11 6EP1 437-1SL11 SITOP Power 40 Power Supply 40A/24V DC
AB1771-AF1厂家直销
LOT OF (5) OMRON RELAYS_ G3TA-OA202SZ_G3TAOA202SZ_G3TA-0A202SZ
Fanuc DC Servo Motor Model 0 A06B-0611-B004 volts 94 amps 5.8 A06B0611B004
MITSUBISHI Convertidor de frecuencia E500 FR-E540-1. 5K-EC
New Allen Bradley 802T-ATP /J Limit Switch Plug-In Lever Type NEMA 4/13 CW/CCW
pilz p1k 490250 220v
ifm EVECTOR 100 INDUCTIVO IB5093 IB-3020-BPKG NUEVOSEW PHC21A-A075M1-E21A-00 Movipro ADC Feldumrichter PHC21AA075M1E21A00
Siemens 3RV1901-1A 3RV1 901-1A Auxiliary Contact 1 N.O. 1 N.C. Qty
Allen Bradley Industrial Computer With TouchScreen 6180-DIIEHLDRECZ
Seidel Danaher servomotore 6SM 56-S 3000-A , 6SM56-S3000-A , 6SM 56-S3000-A-BV
USED Fanuc A16B-2200-0853/05B Axis Control Board
Allen Bradley 1762-L24AWA /C FRN 8 MicroLogix 1200 Processor 120/240V AC, Read!
Bendix S5 RTC/FRO Control EM Circuit Board 3728921 S _ 3728921S
Danfoss Bauer EKS 005 A 9 Bremse EKS005A9 für getriebe
Allen Bradley 1756-IB16ISOE /A ControlLogix ISO Sequence of Event Input F/W 2.7
Allen Bradley 20BD3P4A0AYNANB0 /A PowerFlex 700 AC Drive 480V 3.4A 2HP
Abb DSQC 223 , DSQC223
Melsec Programmable Controller AY51 _ AY-51 _ BD625A950G51B _ BD625A95OG51B
siemens simatic 6ES7 340-1CH00-0AE0 6ES7340-1CH00-0AE0
Allen Bradley 2094-BC07-M05-S /B Kinetix 6000 Axis Module 45kW/48A 400/460V
Lot of (2) FANUC A20B-2901-0941/02A Ram Card Circuit BOARD _ A20B2901094102A
Hi-T DRIVE Servo Actuator FH2000 145091 FHA-25B-3015E-BE150 HARMONIC
FireEye Modernisation Adaptateur 25Su3-2100
Marathon Electric 5KC37FNH65HX A-C MOTOR C329 ***NIB***
Parker Valve D1VW020DNJPG 82_D1VWO20DNJPG 82_D1VWO2ODNJPG 82
imtech FC-2000
SICK WT 36-P710 Riflessioni Pulsante illuminato WT36-P710
AB1771-AF1厂家直销
USED Allen Bradley 1746-OB16/D SLC 500 Output Module
USED Cutler Hammer S48D11S10N 10KVA Single Phase Transformer 480 Pri 120/240 Sec
SICK WT 36-P710 Refletions Fotocélula WT36-P710
Siemens Simatic 6EV 3053-0DC 6EV3053-0DC
NEW Barden 118HDL Super Precision Cylindrical Roller Bearing Set
Siemens 6ES7331-1KF01-0AB0 6ES7 331-1KF01-0AB0 SIMATIC S7-300 Input, Read!
Cincinnati Operating Manual Series C 1982 1-TC-8201-1_Acramatic 900 TC Control
Allen Bradley 1771-OBN 10-30 VDC OUTPUT MODULE
Siemens 7LQ2204-1WM CAMPANELLO BELL SUONERIA TIMBRE AC 12V
New Siemens 6ES5095-8MA03 6ES5 095-8MA03 SIMATIC S5-95U Processor
Abb DSQC 223 , DSQC223
Standard Power Inc Power Supply SPS 60-24/28 _ SPS602428 _ 01-302227-00 B1
New Sealed Allen Bradley 1768-L45S /B Pkg 2012 CompactLogix L45S Processor
Siemens Ssc 3RF2350-3AA04 neuf neuf
SEW Movitrac 31C300-503-4-00 , 31C300503400 Fréquence onduleur 42kva g
SIEMENS 3SE3 120-1 R Interruptor de posición 3SE3200-1 R
Schneider TSXSUP1051 _ TSX Sup Power Supply _ II:02A _ IEC 1131-2_TSX-SUP-1051
Bridgeport CNC Mill Circuit Board 1936004 Rev C FMDC Card 1939523 _ 1936OO4
ABB STROMBERG SAMC 5 PRO 57149868QG
NEW Timken 526 Tapered Roller Bearing Cone
Allen Bradley 2711-K5A2 /F FRN 4.10 PanelView 550 Mono/Keypad/DH-485
New Sealed Schneider Electric 140DAI54000 lsolated Input Module 85-132V 11.1mA
Hurco MPU Board Assy Circuit Board_415-0215-001A_4150215001A
Oriental Induction Motor 5IK150A-TT2F_5IK15OA-TT2F_5IK150ATT2F_5IK15OATT2F_150W
siemens 6es7924-0bb00-0aa0
New Siemens 6ES7314-6CF02-0AB0 6ES7 314-6CF02-0AB0 SIMATIC S7-300 CPU 314C-2
ifm efector IA-2010-BB0W Induttivo Sensore sistema a due fili/AC
HAGER Disjoncteur différentiel 40A 0,3A ESC463S Contacteur d'installation
ifm EVECTOR 100 INDUCTIVO IB5093 IB-3020-BPKG NUEVOSEW PHC21A-A075M1-E21A-00 Movipro ADC Feldumrichter PHC21AA075M1E21A00
SICK BARRIèRE LUMINEUSE WL33-01 WL 33-01 Cellule photoélectrique reflex
INDRAMAT Servo Controller CLM01. 3-X-0-2-0-FW CLM01.3X020FW
Siemens 6ES7216-2AD00-0XB0 6ES7 216-2AD00-0XB0 SIMATIC S7-200 CPU 216-2, Read!
New Sealed Allen Bradley 1791DS-IB8XOBV4 /A 2015 DeviceNet Safety CompactBlock
barbour 1110 Digital Regulator
Siemens ASI MODULO 3RK1200-0CE02-0AA2 INTERFACCIA AS NUOVO
BAUMüLLER GSF 45-S.4 Servomotor GSF45S4
Cincinnati Milacron T-20 CNC Parts And Service Manual
Mitsubishi Circuit Board FX702_FX702B_FX-702B_BN624E525H01 REV C_BN624E525HO1
AB1771-AF1厂家直销
Nachi Fujikoshi Corp. Modular Valve OCP-G01-B1-20 _ OCPG01B120
*NIB* KEYENCE PJ-V21T _ PJV21T SAFETY LIGHT CURTAIN TRANSMITTER EXTENSION UNIT
Abb double barrier PTB EX-83 2053X GHG 11 GHG11 49130 V1503
seepex 0,55 kw 190 min réducteur mécanique système à roues dentées RF 50-1
SIEMENS Simatic 6ES5465-5AA12 6ES5 465-5AA12 reconditionnés
SIEMENS SIMATIC S5 6ES5 944-7UA22 115U CPU 944 6ES594347UA22
B&R 3IF771.9 IF771 aPCI Interface Module 1 CAN Bus
Cincinnati Milacron Control Board 3-531-3636A Rev. E/L 35313636A
*NEW* Yasnac Yaskawa Circuit Board JANCD-PW01 _ JANCD-PWO1 _ DF8100616
Baldor BSM63A-275BA servomoteur servomoteur
ASEA Brown Boveri Processor Board YB161102-BU/1 _ YB161102BU1
Fanuc IC677DBO085-AA IC677DBO085 PROFIBUS VERSAMAX IP MODULAR SLAVE WITH 8 24VD