ABB ACQ810 - Flow Calculation

Parameters 267
79.16 Start stop delay Sets a delay for stopping and starting a pump (or pumps).
Whenever a start or stop level is reached, this delay must
elapse before any action is taken.
0 … 3600 s Start/stop delay. 1 = 1 s
79.17 Random coef Randomizes the start levels (parameters 79.06…79.13) to
avoid caking on the walls of the container. For example, with
this parameter set to 10.0%, the actual start level is
randomized in the range of
(start level - 10%) … (start level + 10%).
0.0 … 10.0% Random coefficient. TBA
79.18 Normal speed In emptying mode, defines the pump speed when the
measured level is below the high level setting (parameter
79.14), and the high switch (parameter 79.15) is not active.
In filling mode, defines the pump speed when the measured
level is above the low level setting (parameter 79.03), and
low switch (parameter 79.04) is not active.
Ideally, this parameter should be set at the optimal operating
point of the pump.
0.0…32767.0 rpm Normal running speed. TBA
79.19 High speed In emptying mode, defines the pump speed when the
measured level exceeds the level defined by parameter
79.14 High level, or when the high limit switch (parameter
79.15) is active.
In filling mode, sets the pump speed when the measured
level falls below the level defined by parameter 79.03 Low
level, or when the low limit switch (parameter 79.04) is
active.
See the diagrams at parameter 79.01 Level mode.
0.0…32767.0 rpm High running speed. TBA
80
80 Flow calculation
Settings for the flow calculation function.
See also section Flow calculation on page 62.
80.01 Flow calc mode Enables the flow calculation function, and determines
whether a PQ (power/flow) curve or HQ (head/flow) curve is
used for the calculation. The curves are defined by
parameters 80.04…80.23.
Not used Flow calculation not used. 0
PQ curve The PQ curve is used for flow calculation. 1
HQ curve The HQ curve is used for flow calculation. 2
Both Both the HQ and PQ curves are used for flow calculation.
The transition point between the curves is set by parameter
80.24 HQ PQ brk point.
3
80.02 Pump inlet sel Selects the analog input (or other signal source) used for
pump inlet pressure measurement.
Zero No input selected (no pressure sensor available). 0
AI1 scaled 02.05 AI1 scaled (see page 113). 1073742341
AI2 scaled 02.07 AI2 scaled (see page 113). 1073742343
AI3 scaled 02.09 AI3 scaled (see page 113). 1073742345
AI4 scaled 02.11 AI4 scaled (see page 114). 1073742347
AI5 scaled 02.13 AI5 scaled (see page 114). 1073742349
No. Name/Value Description FbEq