Robur Direct Digital Controller, Инструкция по установке, использованию и программированию

Страница: 98 / 164

Direct Digital Controller
96
Direct Digital Controller fw 4.013 – Ed. 01/2013
The pre-set option is “Default”, which assigns the sum of the powers of all auxiliary boilers as the rated plant
power. This value is usually correct when the auxiliary boilers run in “Complement and substitution” mode,
as in this case the boilers must provide 100% of the power needed in high thermal load conditions
4.4.2.6.4 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 plants,
for hot water production plants, or for chilled water production plants.
6 - Turn the knob to scroll the cursor downward until highlighting “Base 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
NOTE