6/17/2021 7:59 PM | |
Joined: 5/20/2021 Last visit: 4/8/2022 Posts: 55 Rating:
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thanks.i appreciate that. sorry for misunderstand. Regards. |
6/18/2021 5:05 PM | |
Joined: 5/20/2021 Last visit: 4/8/2022 Posts: 55 Rating:
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Hi, concernant my last request for reverse rotation of pump (externally from my logo),i find a solution that i connect an output from the Logo to the Input on the pump to change the state from 0 to 1 or vice-versa. so i wire the terminal (called direction of my pump) to my output Q1 that i use a switch button so i can reverse the rotation. i try to do step 1(file etape1) in this project that i control the level of one drum by pressure transducer and its working.now is there any help or suggestion to do my scenario in this project: -the pump will turn on, till the the first drum will be level low ( valve 1a and 1b are openend; 2a and 2b closed) -after that, the pump reverse rotation and trun on till the second drum will be low level ( valve 2a and 2b are openend; 1a and 1b closed). the drum dimension (34inch*24inch) level low : 4inch valve types: proportionnel valve 2-10V (analog output AQ) thanks Attachmentetape1.zip (330 Downloads) |
6/18/2021 7:42 PM | |
Joined: 10/16/2020 Last visit: 8/20/2024 Posts: 122 Rating:
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Hi, Maybe this Application example could be helpful: https://support.industry.siemens.com/cs/ww/en/view/109755866 Regards. |
If this information has been helpful to you, please don't forget to rate it. |
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6/18/2021 8:38 PM | |
Joined: 5/20/2021 Last visit: 4/8/2022 Posts: 55 Rating:
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thanks for that, iwanna an exemple more simple for control pum with proportionnel valve juste to understand the concept. |
6/22/2021 5:35 PM | |
Joined: 12/18/2014 Last visit: 8/21/2024 Posts: 33603 Rating:
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Here's a example. The AQ1 setting is 4-20 mA. AttachmentSetpoint_for_pump_via_PI_controller_8.3.zip (327 Downloads) |
6/24/2021 5:56 AM | |
Joined: 12/18/2014 Last visit: 8/21/2024 Posts: 33603 Rating:
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I think you became a problem when the value for opening the valves is at the end point of the pressure. The meassure range of the pressure sensor is 0 - 5 psi and you want that the valves are open when the pressure is 5 psi. AttachmentOpen_valves_8.3.zip (343 Downloads) |
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