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Start and Stop the pump automatically in MM440 using the Analog setpoint 4-20 ma

12/17/2012 2:55 PM	Rate (0)
Mazen_ Advanced Member Joined: 12/16/2009 Last visit: 12/31/2024 Posts: 17 Rating: (0)	Dear's I need to control my motor with the analog set point 4-20 ma and no PLC the function should be 1- when the pressure is less than or equal 2.5 bar the pump 1, 2 and 3 should run automatically without any buttons. 2- when the pressure is less than or equal 3 bar and greater than 2.5 the pump 1 and 2 only should be run. 3- when the pressure is less than 4 bar and greater than 3 bar only pump 1 should be running . 4- when the pressure is more than 4 bar all pumps should stop. i appreciate your support here....

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12/18/2012 8:16 AM	Rate (0)
Mazen_ Advanced Member Joined: 12/16/2009 Last visit: 12/31/2024 Posts: 17 Rating: (0)	No Reply

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12/19/2012 2:18 AM	Rate (0)
Vithani Platinum Expert Joined: 7/8/2009 Last visit: 6/7/2025 Posts: 1977 Rating: (479)	You can use comparator for this. Compare your Analog feedback with some preset value and generate output which will select how many pump should run
	I dont Like people driving Fast, thats the reason I overtake them ;)
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12/29/2012 7:03 AM	Rate (0)
RicoT Posts: 24 Rating: (0)	Hello, Please see attachment, it might help you. Thanks and Regards, Uldarico Torreda Siemens Limited, Saudi Arabia I CS Attachment F:\Customer\SaudiInternationalCo\BlockDiagram.pdf (407 Downloads)
RicoT Posts: 24 Rating: (0)
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