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102 Application macros
Level control macro
Description and typical application
The level control macro is designed for controlling a station of 1 to 8 pumps that is
used for either emptying or filling a container.
The level control functionality is activated by setting parameter
and selecting external control location EXT2. The start levels for
the pumps (as well as the alarm levels) are set by parameters in group
At any given time, one of the drives acts as master. The master status can be rotated
between the drives using the Autochange function, or one drive can be fixed to
master status. The start/stop level settings of the master are the ones in effect.
The following drawing represents a station with three submersible pumps in emptying
mode. Each pump has a pre-defined start level, and more pumps are started as the
level in the container rises. The level sensor is connected to an analog input that is
selected as the process actual value in parameter group
.
XD2D
DI
DI
XD2D
XD2D
3
3
3
Digital high
level sensor
DI
DI
DI
DI
Digital low level
sensor
High level alarm
Pumps at high speed
Low level alarm
Start level for pump 3
Start level for pump 2
Stop level
AI
AI
AI
Analog level
sensor
Start level for pump 1
Содержание ACQ810
Страница 1: ...ABB industrial drives Firmware manual Standard pump control program for ACQ810 drives ...
Страница 4: ......
Страница 14: ...14 About the manual ...
Страница 56: ...56 Control locations ...
Страница 97: ...Application macros 97 ...
Страница 98: ...98 Application macros ...
Страница 100: ...100 Application macros ...
Страница 101: ...Application macros 101 ...
Страница 106: ...106 Application macros 75 01 Operation mode Multipump 76 01 Enable MF comm Yes ...
Страница 356: ...356 Control through the embedded fieldbus interface ...
Страница 366: ...366 Control through a fieldbus adapter ...
Страница 374: ...374 Control block diagrams ...