美国GEIC660BCM501厂家直销
美国GEIC660BCM501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。
Siemens D16 5SY65 Circuit breaker 5SY6516-8 16A 230v 1+N
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kieback & peter KSY11 STETIREGLER KSY 11
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Okuma CNC LB10 Lathe Operation Manual 2450-E-R2
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Allen Bradley 2711-K6C20 /C FRN 4.46 PanelView 600 Color Key/EtherNet/RS-232
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Asea Rectifier YB161 101-GL DSQU 223 _ YB161101GLDSQU223
C.E.conE. MTP 600 Bomba de agua centrífuga Oscurecimiento del uno mismo
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K&T KEARNEY & TRECKER FEEDBACK SUBSYSTEM CIRCUIT BOARD 810-21276-02 8102127602
OKUMA OPUS7000 SVP BOARD A911-216_1911-2160-12-62_E4809-045-158-B_E4809045158B
GE Fanuc CNC Products Connection Manual Series 15 150 _ GFZ-61213E/05 Sept 1992
FANUC Model 5 AC Servo Motor W/BELT_A06B-0512-B231_A860-0320-T111_A06B0512B231
BKG PL 620 MICROPROCESSOR MAIN BOARD PL620
Siemens C 32 , 5SJ3532-7WM Disjoncteur, 5SJ35, 32A , C32 230v, 1P
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New Sealed Allen Bradley 20BD8P0A0AYNANC0 /B PowerFlex 700 AC Drive 480V 8A 5HP
Allen Bradley 2711-T10C10 /F PanelView 1000 Color/Touch/DeviceNet/RS-232, Read
FIDIA RTB1.3_RTB13_RTB 1.3_ REV 117 CIRCUIT BOARD
Tamagawa Brushless Resolver TS530N33E9 _ TS53ON33E9 _ 30000 Hz
Honeywell XS 563 , EXCEL 500 DéG?TS DUS AU TRANSPORT
GE FANUC Circuit Board 44A719307-104R03_44A723608-002-R02/2_44A723608002R02/2
Telemecanique Square D Read/Write Antenna XGP-A312D70 _ XGPA312D70 _ Type F
Berger Lahr WDP3-014.0801 0065301401003 WDP3-014 3,6A
Allen Bradley 2711P-T6M5D /D PanelView Plus 600 Touch/RS-232
Charmilles Pilot Vavle Assembly_D1VW1DY50_CPOM2 D_ Robocut 2 CNC EDM
SEW 0,75 kw 46 Min SF42 DT80N4TF Motoriduttore cambio cambio
Siemens 6ES7131-4BD00-0AB0 6ES7 131-4BD00-0AB0 SIMATIC S7 DP Digital Input, Read
bizerba LPB ITE EXPOSTTTION
USED Cutler Hammer EHD2050 Industrial Circuit Breaker 50 Amps 480VAC 2 Pole
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moeller motorschutz leistungsschalter pkz2/zm-1 motor protective circuit breaker
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Trumpf módulo de conexión 087076 087876
9494-70.536.501 Trutzschler Drive 949470536501
Rofin sinar diode laser Dilas M1F2S22-976,2-130 CH. IS29. 2M 3
Siemens Circuit Board 462-807-9000.03 _ 4628079000.03 A/B/C
Hubner HG 16 M D 250 I digital speedometer 1712696 incremental encoderEaton FAZ-B13/3 Circuit breaker B13 278845 15KA Circuit Breaker 13
美国GEIC660BCM501厂家直销
New Sealed Allen Bradley 20-HIM-C3S /C 2014 PowerFlex Remote Small HIM LCD
8 X pièce Abb sigma R 1571 Module de relais GHR 157 4001 R 0002
OMRON CPM2A-30CDR-A Micro Programmable Controller RS-232C 18 Inputs 12 Outputs
Hitachi CNC Fanuc Robot CONTROL w/ Boards for repair
belimo SRC24A-SR-TP STU Mise en route Actionneurs de volet
GLENTEK SERVO DRIVE_TOP BOARD NUMBER: GA4569EPA_"X" DRIVE
SIEMENS 8WD4220-5AD Continuous lighting LED 50mm Yellow 24V
siemens fire safety S.I.A. 303 QES 2000 Ul
USED Eaton / Cutler Hammer MS36080YA Molded Case Switch 800 Amps 600V Auxiliary
Siemens 6ES7340-1CH02-0AE0 6ES7 340-1CH02-0AE0 SIMATIC S7-300 CP 340, Read
*NIB* Control Technology Circuit Board 2201 _ 22O1 _ 32 digital inputs
**NEW** Fanuc I/O Module AID16C
Reliance Electric Resolver Input 0-57411-1 _ 0-574111 _ 0574111 _ VMDD961
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USED Allen Bradley 6185-JCZJAZZ Operator Interface Panel Monitor Series A
Pfannenberg PF22. 000 Armadio di comando del ventilatore 230V PF22000,
*NIB* NSK 5308TNGC3 N Super Precision Bearing 405 __ 5308TNGC3 N
New Cisco AIR-AP1242G-A-K9 Aironet 1240G 1200 802.11g Series Access Point Qty
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Cincinnati Milacron 3 531 3859A _3 533 0049G Rev. D PCB_*For Parts/Repair*
Hubner POG 10 DN 1024 I digital velocímetro encoder FSL,POG10DN1024I incremental
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REXROTH Z2S 6A2-64 00347499 VALVE Z2S6A2-64
GE Fanuc IC693MDR390C Mixed Input/Output Module 90-30 Series
Kl?ckner Moeller SPS rinforzo PS4-201-MM1 ottime condizioni TESTATO
美国GEIC660BCM501厂家直销
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LOT OF (4) __ Klockner Moeller Starter Motor Protector DIL R31
SIEMENS 1FT5066-0AF01-2-Z Servomoteur 1FT50660AF012Z
CEG Motor eléctrico ET63SB2 FPCP 1,5kw 2800 min 230-400 Voltio
festo DNC-32-25-PPV-A 163305 Standard cylinder Pneumatic R108
*NIB* Parker Cylinder 1.25DXPSR03.0 _ 125DXPSR030 _ p max = 250 psi (17 bar) CM
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Rexroth IBS ACOPLADOR DE BUS 335 530 450 2 3355304502
Fanuc Power Supply Unit A14B-0067-B002-01 b/n A20B-1000-0410 03A A14B0067B00201
MTS Capteur Temposonics MK 292 mk292-1001 REV.6 mk292-1001
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Mitsubishi FX0N-8EYT-ESS/UL d'occasion
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s+b digitemp mc 5148 Thermostat De Contr?le De Température
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美国GEIC660BCM501厂家直销
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