46 Program features
2. PQ (power/flow) curve based flow calculation
In the PQ curve based flow calculation, the user can define a PQ (power/flow)
performance curve that is used as the basis for the calculation or a differential
pressure based flow feedback. The figure below shows the PQ performance
curve of the pump for the flow calculation function.
Notes:
• The flow calculation function cannot be used for invoicing purposes.
• The flow calculation function cannot be used outside the normal operating
range of the pump.
• Power points in PQ curve are expected to be in ascending order
(P1 < P2 < P3 < P4 < P5).
• Flow points in PQ curve are expected to be in ascending order
(Q1 < Q2 < Q3 < Q4 < Q5).
3. HQ (head/flow) curve based flow calculation
In the HQ curve based flow calculation, the user can define a HQ (head/flow)
performance curve that is used as the basis for the calculation or a differential
pressure based flow feedback.
P [kW] or P [hp]
Q [m
3
/h] or Q [gpm]
2
4
5
3
1
Summary of Contents for ACQ80
Page 1: ... ABB DRIVES FOR WATER ACQ80 standard program control Firmware manual ...
Page 2: ... Related documents are listed on page 13 ...
Page 4: ......
Page 10: ...10 Table of contents ...
Page 32: ...32 Startup control with I O and ID run ...
Page 34: ...34 Using the control panel ...
Page 74: ...74 Program features ...
Page 78: ...78 Control macros ...
Page 380: ...380 Fieldbus control through a fieldbus adapter ...
Page 384: ...384 Parameterization with Drive Composer ...
Page 388: ...388 Parameterization with Automation builder drive manager ...