AB1757-SRM厂家直销

AB1757-SRM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 überlastrelais 3RB1253-0FM40 Thermistorschutz
USED Fanuc A16B-1211-0042/02A Memory Module Board RH/RJ
New Sealed Allen Bradley 1492-PD3226 /B Power Distribution Block 3-Pole 620A Qty
Siemens 6ES7318-2AJ00-0AB0 SIMATIC S7 6ES7 318-2AJ00-0AB0
New Sealed Eaton 4995D10G01 Mounting Undervoltage Release 120V AC Left Hand
Allen-Bradley slc 500 1747-L542
siemens 1FK6040-6AK71-1TB0 servo motor servo motor
USED Fisher Rosemount CL6826X1-A2 Provox Smart Device Output Card. Rev. K
SIEMENS SCHALTER 3VL9210-6GE30 überstromausl?ser NDGA leistungsschalter
Aviteq D-65795 Hattersheim Vibration Technology GmbH VIB 02-1061c
NACHI UM803A PC BOARD _ UM080 PCB MEC-40V-0 _ MEC40V0 _ UM8O3A
Numatics Pneumatic Valve S32C-06BE S32C06BE
Fanuc Circuit Board A20B-2900-0110/06B _ A20B29000110
Bauser etoiles motoréducteur 0, 37kw 10 min réducteur mécanique sans ventilation
FANUC A20B-0006-0760/02A POWER SUPPLY
GE Fanuc Automation PCP User's Manual 90-30 I/O Link Master Module IC693BEM321
NEW Worthington 232120X1 Air Compressor Inlet Valve Replacement Part
New Sealed Allen Bradley 22A-A9P6N103 /A PowerFlex 4 AC Drive 240 V 9.6A 3HP Qty
Siemens 5SM3314-0 disjoncteur 40A Residual courant 2 Poles RCCB
New Sealed Siemens 6SE7021-6ES87-2DA1 6SE7 021-6ES87-2DA1 Braking Resistor Qty
SMC EX120-SCS1 VALVE TERMINAL VQ1101-5-Q VQ1301-5-Q
IFM oL5022 Barrière photoélectrique reflex 0L5022 OLPLFPKG us-100 photo
Lot of (2) 1/2" Collis / Balas CAT30 End Mill Holder Taper Tool CAT 30
Tamagawa BRX Smartsyn Résolveur TS2620N21EI1
USED Allen Bradley 1771-SDN/B DeviceNet Scanner M01
Gossen Metrawatt Camille Bauer U 3687 Trasformatore di misura USATO
Brother Circuit Board PCB_JCI-D1S_JCID1S_B521084-1_B5210841
New Sealed Spectrum Controls 1746sc-IA8I /B SLC 500 Digital Input 100/120V
Rofin sinar lascon I-O opto-co 120202098 K.3784.06
HI-ELEKTRONIC CONTROL PANEL HI-50034-000_HI50034000_WISMATIC R-665
Fanuc Circuit Board A16B-1211-0170/11E _ A16B1211017011E _ A16B-1211-O17O/11E
Nikon Rotary Optical Shaft Encoder RFH 1024-22-1 A86L-0026-0001 #002
Sugino Selfeeder Mechatric MSPU-R3038SU Inline Drill Drilling Unit Self Feed
GE Fanuc AC Servo Motor Model 10_A06B-0501-B005#7008_A06B0501B005_A860-0315-T102
Sampagod SX48-240/08-P1-B Alphanumeric Digital display Text display
NACHI SOLENOID OPERATED VALVE - SS-G01-E3X-R-C1-31_SSG01E3XRC131
Mazak Relay Circuit Board D65RA002610 _ D65RAOO261O
SIEMENS SINUMERIK 6EV2031 4CC 6EV2031-4DC 6EW100-4AB POWER SUPPLY generalueberho
Fusion 038035 038035 038043 Rev L 455 Controller Board
Production Process MDT-150_MDT150 - SHIPS FROM USA
Coudre Motoréducteur 0.75 Kw 42 Minimum Vis De Disque étiqueté?e Bo?te Vitesse
SIEMENS 6SE3117-3DC40 MICROMASTER 6SE3 117-3DC40
Taylor-Dunn Vehicle Troubleshooting Replacements Parts Manual E0-455-24
Lenze 8600 33.8602_E. Fréquence 00356131 338602E id-nr 00356131
Kingston Storcase Carrier SCSI Drive HDD
E25BC-4H-SB-CCW-8GC-5406M24-LED-SC60-S BEI Motion Systems Industrial Encoder
Siemens Micromaster 6SE9212-1BA40 6SE9 212-1BA40 Frequency converter 0, 37kw
MITSUBISHI CIRCUIT BOARD PCB BN634A451G52A_REV A_QX041A
Fanuc Servo Motor Model 5_A06B-0512-B501/7073 _A06B0512B5017073 _ A860-0304-T111
Allen Bradley 1756-OB16IS /A 1756-0B16IS ControlLogix Scheduled Isolated Output
Cirrus Logic Circuit Board PCB 486-CCV Rev B 486CCV
Allen Bradley 1747-SCNR /A SLC 500 ControlNet Scanner FRN 1.4 Qty
SIEMENS 1 FT5064-0AF01-9-Z F Servomotore 1FT50640AF019ZF
Sew 0,37 kw 200 min motorreductor S31DT71C-2BM Gearbox
New Allen Bradley 440T-MRKSE10MG /A Rotary Switch Enclosure Mounted 4NO 20A
Matsuura-Yasnac-PCB-Operator-Control-Panel_EN4-1400A_EN41400A Matsuu_920509818
LENZe contr?leur contr?le ETC-NCE, 8 axes 8 axes ETCHC008ACB
rexroth Indramat MKD041B-144-KG1-KN servo motore SERVOMOTORE
Bauser star gear motor 0, 37kw 10 min gearmotor without air lid
SIEMENS 3VL3725-2EC46-0AA0 CIRCUIT BREAKER CIRCUIT BREAKER
Allen Bradley 1771-RTP3 NEUF
AB1757-SRM厂家直销
New Allen Bradley 1783-US8T /A 2015 Stratix 2000 Switch Unmanaged 8 Copper Ports
Allen Bradley 1771-IFE /A 1771IFE 17711FE PLC-5 Analog Input Module 12 Bit
EMERSON Control Techniques SP2403 Convertidor de frecuencia 15 kw con módulo
Allen Bradley 2098-DSD-020X /C Ultra 3000i Servo Drive 10A/30A with Indexing
Siemens 3RG9002-0DB00 3RG9 002-0DB00
USED Fanuc A16B-3200-0330/17G Main CPU Board RJ3
New Allen Bradley 1771-IFE /C 1771IFE 17711FE PLC-5 Analog Input Module F/W B
New Allen Bradley 592-A5DA /A SMP-1 Overload Relay 1.0-2.9A Qty
SIEMENS simatic 6ES7405-0KA01-0AA0 6ES7 405-0KA01-0AA0
Siemens 6GK7342-5DA02-0XE0 6GK7 342-5DA02-0XE0 SIMATIC S7-300 CP342-5, Read!
Mann Hummel danni di trasporto
Siemens C 40,5SY3340-7 Interruttore magnetotermico,5SY33,40A,C40 400v,3 POLARE
Kollmorgen seidel 3L 0,5-60 Starter électrique 60A
siemens Feu safety système CS1140 Cerberus cI1145
Cincinnati MMC Circuit Board_3-542-1174A_35421174A_REV B/C
Merlin Gerin NS100N Disyuntor NS 100 N , 80-100A
INDRAMAT CLM01. 3-X-0-2-0-FW Servo Controller CLM01.3X020FW
New Sealed Molex CCDEP-8B4P-D1U-G02 Profinet IO Classic 12 Inputs/4 Outputs Qty
PHILIPS Thermostat 9404-420-62331 940442062331
Air Gage Company / PT & E T.I.R. TIR Module D-1116A _ D1116A
Siemens 5SY6315-7 Miniature circuit Breaker 5SY63 MCB circuit Breaker C 1,6 3P
Beck 8 HSS 1 =50 897 Reibahle Handreibahle Kegelreibahle
SIEMENS SERVOMOTEUR 1FK6040-6AK71-1TG2-Z SERVO MOTEUR
Siemens 6AV6545-0CC10-0AX0 6AV6 545-0CC10-0AX0 SIMATIC Color 10-in Touch Panel
Klingelnberg Oerlikon Geartec AG Daimer Chrysler T50 Mechanical Parts List
Hitachi Circuit Board A87L-0001-0017 09G _ A87L00010017
AB1757-SRM厂家直销
USED Bently Nevada 3300 Series Signal Relay Board 88501-01
Siemens Teleperm M 6DS1326-8AA (6DS 1326-8AA)
USED Allen Bradley 2099-BM09-S Kinetix 700 Drive 75HP
SIEMENS Sinumerik FGB keyboard Anschalter 6FX1125-7AB01
EMCOTURN 342_EMCO Circuit Board_Y1A 853 000_Y1A853000
New GE Fanuc IC220PBI002-DA Profibus Network Interface Unit Module
Red leone PAXP Redlion Indicazione digitale Modello PAXP000B
Martens Elektronik EP9648-1-15-0-00 Economy Panel Meter EP9648115000
AMK DS5-5-6-S00 DS56S00 Servomotor DV524R00 C943AD
Bendix S5 RTC/FRO Control EM Circuit Board 3728921 S _ 3728921S
*REPAIRED* Baladyne Active Balancing System MX-700 _ MX700 _ MX-7OO _ MX7OO
SIEMENS 3VF4211-2BM41-0AA0 Circuit breaker 3VF42112BM410AA0
New Sealed Siemens 6ES7155-6BA00-0CN0 6ES7 155-6BA00-0CN0 IM155-6DP HF Interface
Used 400 Amp GE SPECTRA Electronic Breaker SGLL36BB0400 MVT Plus Trip LSI
OLDHAM MX 52 6451423 Gas warning central MX52
minitiator ROULEMENT à AIGUILLES 5010.01.34 capteurs de proximité
CMC Inc Circuit Board PCB D41-13924E _ D4113924E
Allen Bradley 2711P-B15C4D2 /A PanelView Plus 1500 Key/Touch/Enet/RS232, Read
USED Fanuc EE-4583-050 7th Axis Encoder / Brake Module Rev. F
Okuma Maintenance Manual (1st Ed) for Spindle Servo Unit 4018-E (EES4-001-O1)
USED Fujitsu HS6A-AD1 FLM 600 High Speed Switch Card Issue 3 FC9616AM1
SOINS SZA 400 EX-24 interrupteur de débit flux contr?leur
Rexroth MKD041B-144-GP0-KN servomotor R911261680 SERVOMOTOR
New Allen Bradley 1794-ACN15 /D 2015 ControlNet Flex I/O Adapter Module
Used 400 Amp GE SPECTRA Electronic Breaker SGLL36BB0400 MVT Plus & Shunt Trip
New Allen Bradley 440E-D13120 /B 440E Emergency Stop Device LRS3 2NC 2NO Qty
Autocon CRT/MDI Unit 4202762 A 2342 _ 4201264 _ Monitor DM30-09BO-728-CLA
NEW Timken 3720 200010 Tapered Roller Bearing Race Cup
SIEMENS 1FK6042-6AF71-1TH0 ~ Brushless ServomotorCoudre Motoréducteur 0,37 KW 87 Minimum star prépare uniquement usage unique
HEIDENHAIN ERN 1387 2048 62S14-70 385 488-30 Decodificatore ERN1387204862S14-70
Gould Modicon Analog Input 0-10V _ B573 _ B573 010 _ B573010 _ B573-010
Allen Bradley 1747-L40A /C SLC 500 Processor DH-485 24-In/16-Out 120/240V, Read
Abb doble barrera PTB EX-83 2053X GHG 11 , GHG11 49130
Nachi Modular Valve OG-G01-PC-K-20 _ OGG01PCK20 _ 990
Lacey T91 057-048 0, 16kw 480 min 220 volt moteur électrique
Mennekes 16A DUO meccanica bloccato presa 5100AC 16 A-6h 380-415V
USED Fanuc A16B-1212-0471/01A Power Supply Board
Sodick A7C Wire EDM Circuit Board MDR-001B MDR001B
AB1757-SRM厂家直销
SEW Eurodrive Movitrec 8208913 FRA 11
Fanuc MDI/CRT Unit A02B-0059-C031_A61L-0001-0076_A20B-0007-0030_A20B-1000-0130
Bevi 1,1 KW 2840 min B34 230-400v Electric Motor Three-phase top Quality for E
SIEMENS 1FK7042-5AK71-1EH5-Z SERVOMOTOR SERVO MOTOR
Balluff BES M12MC1-PSC10F-S04G Inductive Sensor Proximity Switch 10-30V DC
USED Fujitsu PW6A FLM 600 Power Supply Card FC9616PW61
USED ABB 40 HP ACH401C03032+A0AE0000 AC Drive w/ Bypass and Disconnect VFD
USED Allen Bradley 1771-DCM/B Direct Communication Module B05
NEW Fafnir 2MM209WI DUL Super Precision Cylindrical Roller Bearing
Galil Motion Control ICM 1460/AMP 1460 Rev B Card Circuit Board Module Autocon
Siemens simodrive 6SC6100-0GE01 6SC6100-OGE01
New Allen Bradley 509-COD /B Full Voltage Non-Reversing Starter Overload Relay