Pump Inlet And Outlet Protection - ABB ACQ580 Firmware Manual

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.
• Head points in HQ curve are expected to be in descending order (H1 > H2 > H3 >
H4 > H5).
• Power points in PQ curve are expected to be in ascending order (P1 < P2 < P3 <
P4 < P5).
Settings
Parameter group 80 Flow calculation and protection
differential pressure based flow feedback and
pump inlet and outlet selection for HQ calculation.


Pump inlet and outlet protection

The Pump inlet and outlet protection function monitors pump inlet and outlet pressure
and takes the user defined actions in case the pressure is outside the normal range.
The inlet and outlet minimum pressure protection function can first generate a
warning when the pump pressure is below minimum pressure warning level for
pressure check delay time. If the pressure continues to fall below the minimum
pressure fault level, a fault is generated.
The outlet maximum pressure protection function can first generate a warning when
the pump outlet pressure is above maximum pressure warning level for pressure
check delay time. If the pressure continues to rise above the maximum pressure fault
level, a fault is generated.
Settings
Menu -> Primary settings -> Pump features -> Pressure protection
Parameter group 81 Sensor settings
274).
(page 269) defines the HQ/PQ or
81 Sensor settings
(page 273) and 82 Pump protections
Program features 69
(page 273) defines
(page