1769-OB16

1769-OB16罗克韦尔
1769-OB16 /allen-bradley
1769-OB16正品AB


　采用变频器实现恒压供水已经算不上是新颖的应用，在自动控制领域这也算不上新课题，但是大多数恒压供水都是采用PLC 逻辑编程，使用变频器控制电机变频调速来实现恒压供水。本文详细介绍PowerFlex 400交流变频器在无需PLC控制器的情况下，完实现恒压供水的应用，将恒压供水这种典型的应用低成本化、益化。
　　二、解决方案说明：
　　在制定方案的选择上，本着节约能源、控制简单、应用方便的原则。该方案以恒压变频供水为控制核心，利用变频器的变频控制实现的恒压变频控制系统。
　　主要优点：
　　1. 无需PLC 控制器，变频器独立完成变频、工频之间的接触器切换;
　　2. 采用AB变频器实现变频调速和PID整定调节;
　　3. 电机的变频控制与工频控制之间可以周期性自动切换;
　　4. 对于电机设备可能出现的异常或是故障，本系统提供较好的备用处理方式：
　　①变频器故障时，可以切换到工频直接启动电机;
　　②电机故障时，可以切换到备用电机(3#电机为备用电机)，继续正常工作。
　　三、解决方案核心设备清单：
变频器介绍:
　　罗克韦尔自动化旗下艾伦-布拉德利PowerFlex400变频器拥有众多内置特性支持变频器与楼宇控制系统之间的无缝连接，大大方便了风机和泵类在商业领域的应用。本系统中主要应用PowerFlex 400变频器的以下功能特点：
　　5.1 PowerFlex 400变频器自带两路模拟量输入，两路模拟量输出;解决方案拓展讨论：
　　7.1 本方案只以2台电机变频、工频自动切换为主，介绍PowerFlex 400在恒压供水应用中的优势。实际上，在配置了辅助继电器卡后，多可以实现4台电机的切换控制;
　　7.2 本方案中变频器在启动2#工频电机时，对管道压力会有一个波动产生，对此可以通过变频器内部的基准值补偿的方法，控制这种波动的影响到;
　　7.3 单独变频器实现恒压供水的控制方案有别于其方案，无须逻辑编程。在方案实施过程中，要注意各个接触器之间的连锁控制，否则可能会造成设备的损坏。
　　八、结束语
　　变频器PowerFlex 400实现的恒压供水控制系统有着低成本、益、简单易用的优势，无需复杂的逻辑编程。
　　本文介绍的PowerFlex 400变频器的这一典型应用更突出了它的水泵应用的灵活性、性。这一特性为它在同行业的应用提供了可靠地实用案例和宝贵经验。


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20BC170A0AYNAND0 PowerFlex 700 170 A 90 kW AC Drive
2364-SPA01A BRIDGE,DIODE ASSENBLY,A-B CURRENT CODES
1494V-DR611-B 100A Variable-Depth Disconnect Kit
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1494C-DR666-A4-B 60A Cable Operated Disconnect Kit
100-3N00 43 A 100-C contactor
100S-3EJ22C 43 A MCS Safety Contactor
1492-MS6X12VR151-200 Wiring System 6mm x 12mm 80 Mkrs/Crd
1492-MUA7-A10-MB4679 Base and Cover Plate
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1336E-AJB2A ENCLOSURE KIT, TYPE 12,240V,10-15HP
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150-C30FBD-3 NEMA 30A 150 Motor Controller
9515-RSMCLT010EN RSMACC CLIENT ACTIVATION 10-PACK
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140M-I8P-C30-PD 140M Circuit Breaker
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190E-AND1-CB63C-F22 4 - 6.3 A 190E Eco Starter with CB
1492-SM5X10 5 mm x 10 mm Snap-In Marker Card
190E-AND2-CB16C-KY 1 - 1.6 A 190E Eco Starter with CB
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1791D-4B0 DNET 24VDC CBLOCK I/O, 4 IN SINK (NOT EXPANDABLE)
140U-M-UD Circuit-Breaker Accessory
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103T-AWD2-QB10D-C1P-F20-KN-V Combination Starter
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20DD011A0NYYAEABE PowerFlex 700S 11 A 7.5 Hp AC Drive
190S-AND2-CC10D 190S Compact Comb Starter w/CB
103S-AWJ2-CB40X-KY 2.5 - 4 A MCS Starter & Circuit Breaker
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100-C12ZS200 12 A 100-C contactor
20DR180A0NYNACANE 180 A 150 Hp AC Drive
103S-ETL3-DC16C-KN-SP-TE 10 - 16 A MCS Starter & Circuit Breaker
190S-GNKD3-F5D-KN 32 - 45 A 190S Compact Comb Starter w/CB
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1796-FLEX21 IDP FLEX I/O DEMO, 120V, (US)
1494GY-CF3N-98 NEMA 60A Enclosed Disconnect
20CF261A0ANNBNA0 PowerFlex 700H 261 A 250 kW AC Drive
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193-CBCT3 E3 Plus Ground Fault Current Sensor
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194E-FA40X-P11-6 Load Switch
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140U-G2C3-D10 100 A Molded Case Circuit-Breaker
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2094-BL10S Kinetix Line Interface Module
1769-CRR3 3.28 FT (1 M) RIGHT-TO-RIGHT BUS EXPANSION CABLE
20BC030A0AYNAED0 PowerFlex 700 30 A 15 kW AC Drive
113-C30FBJE1D-38-3 Combination Starter
1771-QDC PLASTIC MOLDING MODULE
ABB Robotics Circuit Board 2668 165-14/3 2668165143 RAC0401156 RACO4O1156
21VD022A3AYNAHC0CN 21V Fan & Pump Packaged Drive
1485FS-P6N5-C DNET RECEPTACLE THIN, SS
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20DD156A0EYNANASE 156 A 125 Hp AC Drive
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2711-T10C8 ALLEN BRADLEY
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1336-F2-SP5A FUSE LINE 1336STE 450A F FRAME 3/KIT
100-D180EZJ11 NON-REVERSING CONTACTOR
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100S-C85KJ14BC 85 A MCS Safety Contactor
1326AB-B410J-M2K4L MTR SRV 460V 2.7NM 7250RPM MUL BRK IP67
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100-K09ZJ01M IEC 9 A Contactor
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109-C16AJE1P-3-4R-7 Non-Reversing Starter
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