Pump Data Fields (InfoWorks)

US node ID

Type in a node reference or choose an existing node reference from the drop down list. This makes up the first part of the link reference.

us_node_id

Text

64

0

DS node ID

Type in a node reference, or choose an existing node reference from the dropdown list.

ds_node_id

Text

64

0

Link suffix

A single character between A and Z or 0 and 9 which completes the link reference. This allows a node to have up to 36 downstream links. The suffix is automatically allocated by the software.

link_suffix

Text

1

0

1

Link type

The sub-type for this pump. Select from the dropdown list.

link_type

Text

6

0

FIXPMP

Asset ID

For reference only. Designed as a reference to an asset database, but could be used for anything.

asset_id

Text

64

0

Sewer reference

An optional reference to identify the sewer of which this conduit is a part.

sewer_reference

Text

80

0

System type

Choose the system type from the dropdown list. See System Type for more information.

system_type

Text

10

0

Other

Branch ID

Numeric field used to identify to which long section the link is associated.

Can be set manually or automatically (see Defining Branches topic for more information).

branch_id

Long Integer

0

0

US settlement efficiency (%)

Water Quality

This section is relevant only to Water Quality Simulations. If the icon is at the start of a paragraph, then that paragraph is only relevant to water quality simulations. If the icon is at the top of a topic, or a section (underneath a section title), or a row in a table, then the complete topic, section or row is only relevant to water quality simulations.

The settlement efficiency fields allow you to set the effectiveness of an overflow for trapping out sediment. The overflow is a link (normally a pipe) attached to a node acting as a storage tank (storage node or manhole).

Normally the upstream end of the link will be attached to the node and act as the overflow.

The upstream settlement efficiency determines the efficiency for the overflow.

In some circumstances the link may be reversed (storage tank at the downstream end) and the downstream settlement efficiency will be used.

In many cases an overflow will attach to an outfall from the system.

It would be very unusual to have both upstream settlement efficiency and downstream settlement efficiency set to non-zero values.

The valid range is 0-100%. 0% means the overflow acts as a normal continuation link. 100% means that the overflow traps out as much sediment as possible.

us_settlement_eff

Long Integer

0

0

0

100

DS settlement efficiency (%)

Water Quality

This section is relevant only to Water Quality Simulations. If the icon is at the start of a paragraph, then that paragraph is only relevant to water quality simulations. If the icon is at the top of a topic, or a section (underneath a section title), or a row in a table, then the complete topic, section or row is only relevant to water quality simulations.

See US settlement efficiency.

ds_settlement_eff

Long Integer

0

0

0

100

Switch on level

The upstream level at which the pump operates. There is no default value for this field, the valid range is from the Upstream Chamber (wet well) floor to 999.9

switch_on_level

Double

Z

3

-9999

9999

On delay

A run-up time before the pump is operational at its design discharge. The default value is zero and the valid range is 0.0 to 999.9

delay

Long Integer

TS

0

0

Switch off level

The upstream level at which the pump ceases operation. There is no default value for this field. The valid range is from the Switch-on Level to the Upstream Chamber (wet well) floor.

switch_off_level

Double

Z

3

-9999

9999

Off delay

A run-down time representing the time the pump takes to go from full speed to off.

When off delay > 0s:

• Pump flow is multiplied by a factor that reduces linearly from 1 to 0, starting from when the pump first drops below the switch off level until the off delay time is reached.

• If the level in the wet well drops to 1 cm above the wet well floor, pump flow is multiplied by a factor that reduces linearly from 1 to 0 starting from when the wet well drops to 1 cm above the wet well floor until the wet well floor is reached.

off_delay

Long Integer

TS

0

0

Discharge

The pump design discharge. You must enter a value here for fixed pumps and variable speed pumps (this discharge acts as the initial speed for variable speed pumps).

FixPmp and VspPmp only

discharge

Double

Q

3

0

Base level

The base level for the discharge table in metres above datum. This should normally be at or below the switch-off level of the pump. The default is the pump's switch-off level.

ScrPmp only

base_level

Double

Z

3

-9999

9999

Head discharge table

The screw pump uses a standard head discharge table with the zero head level at the Base Level above.

The rotodynamic and variable frequency drive pumps use an inverted head discharge table. As differential head decreases, flow increases. The table must be listed in decreasing order of differential head for the simulation engine to operate correctly

ScrPmp, Vfdpmp and RotPmp only

head_discharge_id

Text

64

0

Nominal speed

Rated speed from manufacturers documentation.

Vfdpmp only

nominal_speed

Double

WN_AV

2

50

5000

0

Nominal flow

Rated flow from manufacturers documentation.

Rotpmp and Vfd pump only

nominal_flow

Double

Q

2

0

Electric mechanical power ratio

Ratio of total electric to mechanical power. A measure of efficiency. Should be > 1.1.

Rotpmp and Vfd pump only

electric_hydraulic_ratio

Double

2

1.25

1

2

Minimum flow

The minimum discharge for the variable speed pump.

minimum_flow

Double

Q

3

0

0

Maximum flow

The maximum discharge for the variable speed pump.

maximum_flow

Double

Q

3

999 m3/s

0

Positive change in flow

The rate at which the discharge for the variable speed pump increases. The value must be greater than zero.

positive_change_in_flow

Double

DQ

5

0.000001

Negative change in flow

The rate at which the discharge for the variable speed pump decreases. The value must be greater than zero.

negative_change_in_flow

Double

DQ

5

0.000001

Flow threshold

The minimum flow step which the regulator will implement. The regulator will ignore any changes below this threshold. This prevents oscillation.

threshold

Double

Q

3

0

0

Maximum speed

The maximum speed for a variable frequency drive pump.

maximum_speed

Double

WN_AV

0

50

5000

0

Minimum speed

The minimum speed for a variable frequency drive pump.

minimum_speed

Double

WN_AV

0

50

5000

0

Positive change in speed

The rate at which the speed for a variable frequency drive pump increases.

positive_change_in_speed

Double

DRPM

5

0.00001

0

Negative change in speed

The rate at which the speed for a variable frequency drive pump decreases.

negative_change_in_speed

Double

DRPM

5

0.00001

0

Speed threshold

The minimum speed step which the regulator will implement. The regulator will ignore any changes below this threshold. This prevents oscillation.

threshold_speed

Double

WN_AV

3

0

0

Points

This field defines the geometry of the link. The underlying data consists of a series of (x,y) pairs defining the vertices of the link. Each link is made up of a series of straight lines between the defined (x,y) points.

This data is not displayed on the grid or property sheet.

Link Vertice Export

Link vertices are included when you export link data to CSV files. There are two options available for exporting link vertices. These are selected on the Select CSV Export Options Dialog using the Coordinate Arrays Format dropdown list. The options are:

• Packed - The data is exported as a series of x,y pairs.



• Separately - the data is appended to the end of the row containing the link data. Each x and y value is in a separate (comma separated) field.

point_array

Array

XY

0

InfoAsset unique ID

Unique ID associated with the corresponding object in an InfoAsset Manager database. When importing from InfoAsset Manager, the InfoAsset ID can be copied from the InfoAsset database in order to maintain links between the two networks.

asset_uid

GUID

0

0

0

0

Used to store the ID of the corresponding InfoAsset object when Importing from a Collection Network.