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

Страница: 94 / 164

Direct Digital Controller
92
Direct Digital Controller fw 4.013 – Ed. 01/2013
4.4.2.5.7 Splitting valve parameters
This parameter shall be set only in case use is made of three-way deviation valves for the separation of the
separable group units provided with auxiliary limit switch contacts.
This parameter indicates the maximum time that the three-way valves can take to switch over from one
position to the other. Shouldn’t the valve reach the preset limit switch within this time, an error is generated (for
further information see error list).
To set above-said value, operate 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 plant: 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 - Turn the knob to scroll the cursor downward until highlighting “Splitting. Vlv Prms” and press the knob.
8 - Place the cursor on the value to be edited; the value is expressed in seconds (from 0 to 600 secs.).
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 .