270 Parameters
Selects a function between the flow feedback sources
selected by parameters
and
.
The result of the function (for any selection) is multiplied by
parameter
In1
directly as the flow value.
0
In2
directly as the flow value.
1
Reserved
2…7
sqrt(In1)
Flow is calculated as a square root of a differential pressure
measurement:
The differential pressure value is selected with
.
8
sqrt(In1-In2)
Flow is calculated as a square root of two measured absolute
pressure measurements:
The pressure measurement sources are selected with
and
.
9
HQ curve
The HQ curve is used for flow calculation.
You can configure pressure sensor settings with parameter
group
.
The figure below shows the HQ performance curve of the
pump for the flow calculation function.
100
No.
Name/Value
Description
Def/FbEq16
k
Δ
P
k
P
1
P
2
–
(
)
H [m] or H [ft]
Q [m
3
/h] or
Q [gpm]
4
2
1
3
5
Summary of Contents for ACQ580
Page 1: ...ABB drives for water Firmware manual ACQ580 pump control program ...
Page 4: ... 2017 ABB Oy All Rights Reserved 3AXD50000035867 Rev C EN EFFECTIVE 2017 06 21 ...
Page 30: ...26 Start up control with I O and ID run ...
Page 40: ...36 Default configuration ...
Page 304: ...300 Parameters ...
Page 340: ...336 Additional parameter data ...