2.Inputs
| No. | Name | Initialisation | Description |
|---|---|---|---|
| 1 | Setpoint Temp. (in °C) | 0 | Setpoint (e.g. setpoint temperature in °C) |
| 2 | Actual value (in °C) | 0 | Actual value (e.g. actual temperature in °C) |
| 3 | 100% range | 0 | Information on the size of the control range or 100 percent range in temperature units area (e.g. °C) in which variable control takes place. The range within which control takes place is limited by "setpoint temperature" (lower limit, Input 1) and "setpoint temperature plus input value control range (value of this input)" (upper limit). Note The lower and upper limit do not belong to the range. If the actual temperature lies above this range, the fixed correcting variable = 100%. If the actual temperature lies within this range, the correcting variable is calculated. If the actual temperature lies below this range, the fixed correcting variable = 0%. See also the value table below. |
| 4 | Factor (Initialisation==1) | 1 | Control factor (minimum 1) The control factor influences the slope of the control curve in the control range, i.e., the time until the setpoint temperature is reached. Lower values lead to a flat control curve (longer duration). Higher values lead to a steep control curve (shorter duration). |
| 5 | Cycle (sec.) | 0 | Calculation cycle in seconds. A zero as cycle time deactivates the module (independently of the setting at Input 6). The first calculation carried out by the module takes place after expiry of the first cycle. A change of the cycle value or setting the lock-out (Input 6) to the zero value restarts the timer: The new cycle begins in this moment. |
| 6 | Lock-out (1=blocked) | 0 | Lock-out - 0 = Controller working - 1 = Controller is blocked. If the lock-out is set to zero, this triggers a restart of the timer for the calculation cycle (Input 5): The new cycle begins in this moment. |
3.Outputs
| No. | Name | Initialisation | SBC | Description |
|---|---|---|---|---|
| 1 | Correcting variable | 0 | s | Correcting variable (0 to 100%) |
| 2 | Correcting variable (sbc) | 0 | sbc | Correcting variable (0 to 100%) |
| 3 | Number of cycles | 0 | s | Number of calculation cycles performed. Note This output is for further information. Assignment is not necessary for standard use. |
s = send, sbc = send by change
3.1.Value table as an example
| E1 - Target temp (°C) | E2 - Actual temp (°C) | E3 - Control range 100% (°C) | E4 - Factor | A1 - Correcting variable (%) | Comment |
|---|---|---|---|---|---|
| 28 | 28 | 3 | 1 | 0 | Actual temperature (28) = Setpoint temperature (28) = Lower limit (28): It is not cooled. |
| 28 | 27 | 3 | 1 | 0 | Actual temperature lies below the setpoint temperature: : It is not cooled. |
| 28 | 29 | 3 | 1 | 16.81 | The setpoint temperature being slightly exceeded leads to moderate cooling. |
| 28 | 29 | 3 | 2 | 75.57 | A higher factor leads to a steeper control curve. This means that the setpoint temperature is reached quicker. |
| 28 | 31 | 3 | 1 | 100 | Actual temperature (31) = Setpoint temperature (28) + Input value control range (3) = Upper limit (31): Maximum cooling |
| 28 | 32 | 3 | 1 | 100 | Actual temperature (32) > Setpoint temperature (28) + Input value control range (3) = Upper limit (31): Maximum cooling |
| 28 | 32 | 5 | 1 | 47.01 | Through the enlargement of the control range, 100% cooling is no longer set, even at 32 degrees. |
4.Other
| Recalculation during start: | Yes |
|---|---|
| Module is retentive: | No |
| Internal designation: | 9087 |
| Category: | Controller |