Model data

Edit field	Description	Used or required by simulations	Field name in data structure
Pump Type	Type of flow variation, constant or based on a capacity curve. “QH Curve” is applicable for archimed Screw, the “QdH Curve” is applicable for all rotodynamic pumps	Yes	CapTypeNo
Start level	Water level in pump sump which triggers the pump to start	Yes	StartLevel
Stop level	Water level in pump sump which triggers the pump to stop	Yes	StopLevel
Acc. time	Pump acceleration time. Used to dampen sudden increase of flow at the pumps START events	Yes	AccTime
Dec. time	Pump decceleration time. Used to dampen sudden decrease of flow at the pumps STOP events	Yes	DecTime
Constant flow	Regards to the pump capacity, flow set for a pump in steady state	Yes	DutyPoint
Capacity curve RPMmax	Capacity curve for the nominal (max) rotation speed	Yes	QMaxSetID
Capacity curve RPMmin	Capacity curve for the minimum speed. Applies only for variable speed pumps	Yes	QMinSetID
Offset	Offset of the capacity curve. Applies to Q-H types, which may be specified relative to different datums	Yes. if Q-H type	Offset1
Offset	Offset of minimum capacity curve. Applies only for variable speed pumps	Yes, if variable speed pump	Offset2
Use regulation	Checkbox enabling the option to regulate the pump operation. Note that this check box is overruled by any rule defined in the 'Control rules' editor: if the control rule should be deactivated, use the 'Apply' check box in the control rule definition. Also note that the regulation is always disabled, when the 'Control rules' module is unselected in the 'Model type' editor.	Yes, if regulation is desired	RegNo
Wetwell WL setpoint	Absolute water level in the pump sump (i.e. wet well) which the pump is supposed to maintain	Yes	WetWellSetPoint
Variable Speed	Allows the option to set variable speed pumps. Only variable speed pumps can be used for PID control	Yes	SpeedNo
Control rules	Activate operation using control rules. Control rules will apply only when both this 'Control rules' check box and the 'Apply' check box in the control rule definition are ticked. “Wet-well set point” is a special control rule, which is accessible also without control add-on module	Yes	ControlTypeNo

Table: Overview of the Pumps editor attributes (Table msm_Pump)