Function Block Description

Function Block Description - VsPumpCtrl

Pin Diagram

Brief Description

The VsPumpCtrl function block executes the following tasks:

oProviding an operating hour counter for the VS pumps.

oIndicating a detected alarm for a VS pump if the configured response time has expired.

oVerifying whether the respective VS pumps are available before the switch command is mapped from the input to the output. Otherwise the output (command bit) of the not available VS pump is set to FALSE (stop).

oGenerating of an alarm flag for each VSD.

I/O Variables Description

The table describes the input/output variables of the function block:

Input/Output	Data Type	Description
iq_stAlrmCtrl	stAlrmCtrl	Structure used for alarm handling. Refer to the structure data type description.
iq_astMode_VsPump	ARRAY [0..7] of stMode	Array of stMode to control and switch the operating mode of the VS pumps (maximum of 8). Refer to the structure data type description.
iq_audiOpHr	ARRAY [0..7] of UDINT	This array is a table listing the operating hours of the VS pumps (maximum of 8). This input/output variable can be reset or adjusted, including from HMI or SCADA systems.

Input/Output

Data Type

Description

iq_stAlrmCtrl

stAlrmCtrl

Structure used for alarm handling. Refer to the structure data type description.

iq_astMode_VsPump

ARRAY [0..7] of stMode

Array of stMode to control and switch the operating mode of the VS pumps (maximum of 8).

Refer to the structure data type description.

iq_audiOpHr

ARRAY [0..7] of UDINT

This array is a table listing the operating hours of the VS pumps (maximum of 8).

This input/output variable can be reset or adjusted, including from HMI or SCADA systems.

The table describes the input variables to the function block:

Input	Data Type	Description
i_xRes	BOOL	Resets detected VS pump alarm states, if the cause has been corrected.
i_astSta_VsPump_Ex	ARRAY [0..7] of stSta	Array of stSta. Contains the external status information from up to 8 VS pumps. Refer to the structure data type description.
i_astLink_VsPump	ARRAY [0..7] of stLink	Array of stLink to link the VS pumps (maximum of 8) dynamically or constantly to one of the VSDs or directly to the power source (direct online) by using contactors. Refer to the structure data type description.
i_siVsPumpMax	SINT	Contains the number of installed VS pumps.
i_tDelFbck	TIME	Defines the maximum time (in milliseconds) allowed for the VS pump to send a response. Default: i_tDelFbck = T#1 s As soon as the command is not equal to the response message received from the main contactor of the VS pump, a timer is started. If the time defined with this parameter expires without receiving a response equal to the command, then the VsPumpCtrl function block sets the output q_stRespErr.xDev(n)for the respective VS pump to TRUE to indicate that an error has been detected.

The table describes the output variables from the function block:

Output	Data Type	Description
q_stRespErr	stRespErr	Structure that indicates detected response errors in the pumps (maximum of 8). Refer to the structure data type description.
q_astLink_VsPump_Ex	ARRAY [0..7] of stLink	Array of stLink to link the VS pumps (maximum of 8) dynamically or constantly to one of the VSDs or directly to the power source (direct online) by using contactors. Refer to the structure data type description.
q_abyVsdNu_Hmi	ARRAY [0..7] of Byte	Output array of the used VSD numbers. Refer to the structure data type description.

Output

Data Type

Description

q_stRespErr

stRespErr

Structure that indicates detected response errors in the pumps (maximum of 8).

Refer to the structure data type description.

q_astLink_VsPump_Ex

ARRAY [0..7] of stLink

Array of stLink to link the VS pumps (maximum of 8) dynamically or constantly to one of the VSDs or directly to the power source (direct online) by using contactors.

Refer to the structure data type description.

q_abyVsdNu_Hmi

ARRAY [0..7] of Byte

Output array of the used VSD numbers.

Refer to the structure data type description.