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50 ESP program features
Automatic process control mode
The pump can be started immediately in Automatic process control mode. However,
due to a relatively slow nature of the artificial lift process, it usually takes some time
before process variable feedback is ready for the closed loop control. To handle this,
you can specify time delay before automatic control is engaged.
The speed reference is controlled automatically based on selected process variable.
For example, pressure, fluid level, flow, motor current.
You can pre-configure two different process control settings in the drive.
1. Each process control parameter set contains:
•
Set point
•
Transition dynamics
•
Feedback signals selection
•
PI controller settings
2. It is possible to switch between process 1, process 2 or manual mode at any time.
In the figure below, the drive starts in manual mode following the user defined pump
speed reference. As delay time elapses, the automatic process control takes over.
Even if auto mode start delay is not in use, the actual automatic procedure is
activated only after the minimum production speed is reached.
Speed reference
Time
Speed reference
controlled
by PI controller
Содержание ACS880-01 Series
Страница 1: ...ABB industrial drives Firmware manual ACS880 ESP control program option N5600 ...
Страница 4: ......
Страница 12: ...12 Table of contents ...
Страница 20: ...20 Introduction to the manual ...
Страница 22: ...22 Using the control panel ...
Страница 28: ...28 Control locations and operating modes ...
Страница 145: ...Application macros 145 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 146: ...146 Application macros ...
Страница 502: ...502 Parameters ...
Страница 606: ...606 Fault tracing ...
Страница 662: ...662 Control chain diagrams ...
Страница 664: ...Contact us www abb com drives www abb com drivespartners 3AXD50000041193 Rev A EN EFFECTIVE 2017 06 30 ...