Direct Digital Controller
Direct Digital Controller fw 4.013 – Ed. 01/2013 89
8 - Position the cursor on the differential value to be modified.
9 - Press the knob to allow the change of the selected value.
10 - Turn the knob to modify the value.
11 - Press the knob to confirm the set value.
12 - To exit, select
.
4.4.2.5.4 Regulation parameters
Setting of the regulation parameters
To set, proceed as described below:
1 - Select
from the initial screen to gain access to the main menu.
2 - Select
to gain access to the System installation.
3 - If required, enter the installer password on the numerical keypad that appears on the display.
4 - Select “Plants” from the drop-down menu.
5 - Select the system for which the parameters are to be set:
for two-line cooling/heating plant;
for the hot water production plant;
6 - Turn the knob to scroll the cursor downward until highlighting “Splitt.Plant Part” and press the knob.
7 - Only for two-line hot/cold systems:
8 - The display shows “Carry out semi-automatic configuration?”
9 - If you select “Yes” (normally advised) the display shows “AUTOM. CONFIGURATION enable/disable
integrals”; the DDC automatically calculated for all machine categories the most appropriate values of the
two parameters “enable integral” and “disable integral” according to the values set for the others. The
value is calculated and set when you exit the panel.
10 -
If you select “No” the display shows “MANUAL configuration of enable/disable integrals.”; the DDC
DOES NOT automatically calculate the two parameters “Enable integral” and “Disable integral”. Use this
option if you wish to set the two parameters manually, of to see the values set automatically by the DDC
following previous access to the panel.
11 - Select the category of the machines for which the regulation parameters are to be set using the
and
buttons. Only the categories to which the machines effectively present on the system belong are
proposed.
12 - Choose the page in which the first value to be edited is present, using the buttons
, or , ,
(the number on the left on the button indicates the current page, the one on the right the total number of
pages available).
13 - To modify the values set, position the cursor on the value to be modified.
14 - Press the knob to allow the change of the selected value.
15 - Turn the knob until the desired value is displayed.
16 - Press the knob to confirm the set value.
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