Input Description¶
Function Block PUMP_ANTIJAM
Note
The inputs marked with a triangle 
are of the class VAR_IN_OUT (input and output variable). These inputs must be connected to a variable.
EN (enable)
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| BOOL | - | - | - |
In order to enable the function block processing, input EN has to be continuously set to TRUE. The function block is not processed if input EN = FALSE. While input is set to TRUE, the inputs are continuously checked for validity and plausibility. If this is not the case, processing is aborted and an error is displayed.
PUMP_ID (id of pump to be cleaned)
Data type: INT, default value: 1, range: 1-3
Enter ID of the pump which is to be cleaned.
TRIGGER (trigger)
Data type: INT, default value: 0, range: 0-4
Trigger to clean the pump.
| Mode | Short description | Description |
|---|---|---|
| 0 | Not enbaled | Cleaning sequence is disabled. |
| 1 | Master enabled | Cleaning sequence is allowed when the drive is master. |
| 2 | Follower enabled | Cleaning sequence is allowed when the drive is follower. |
| 3 | At start | Cleaning sequence is performed at every start. |
| 4 | Manual mode | Cleaning sequence is performed manually. To operate the ANTIJAM in the manual mode, START_MANUAL has to be made FALSE ®TRUE. |
FWD_REF_SPEED (forward reference speed)
Data type: INT, default value: 1, range: ³ 0, unit: rpm
Speed reference to clean the pump in the forward direction.
BWD_REF_SPEED (backward reference speed)
Data type: INT, default value: 1, range: ³ 0, unit: rpm
Speed reference to clean the pump in the backward direction.
OFF_TIME (off time)
Data type: TIME, default value: 10, range: > 0, unit: s
Time delay between the forward and the reverse movement in Antijam.
FWD_STEP_TIME (forward step time)
Data type: TIME, default value: 10, range: > 0, unit: s
Time duration of one clean-step for which the pump moves in the forward direction.
BWD_STEP_TIME (backward step time)
Data type: TIME, default value: 10, range: > 0, unit: s
Time duration of one clean-step for which the pump moves in the backward direction.
ANTIJAM_STEPS (antijam steps)
Data type: INT, default value: 1, range: 1-5
Number of steps to be performed in an Antijam process. One step of Antijam is shown in the picture above.
ALLOW_REVERSE (allow reverse direction)
Data type: BOOL
True value means the pump can also move in the reverse direction to perform the Antijam.
START_MANUAL (manual mode)
Data type: BOOL
For the TRUE value it runs the Antijam in the manual mode.
STATION_DATA (station data structure)
Data type: PUMP_STATION_TYPE
This structure contains pumping station data. All the Functions Blocks receive some data, process it and write it back to the structure.