Display Mode (Display); Programming Mode (Display) - Carel EVD evolution User Manual

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3.3 Display mode (display)

Display mode is used to display the useful variables showing the
operation of the system.
The variables displayed depend on the type of control selected.
1.
press Esc one or more times to switch to the standard display;
2.
press UP/DOWN: the display shows a graph of the superheat, the
percentage of valve opening, the evaporation pressure and
temperature and the suction temperature variables;
3.
press UP/DOWN: the variables are shown on the display, followed by the
screens with the probe and valve motor electrical connections;
4. press Esc to exit display mode.
For the complete list of the variables shown on the display, see the
chapter: "Table of parameters".

3.4 Programming mode (display)

The parameters can be modifi ed using the front keypad. Access diff ers
according to the user level: Service (Installer) and manufacturer.
Modifying the Service parameters
IThe Service parameters, as well as the parameters for commissioning
the driver, also include those for the confi guration of the inputs, the relay
output, the superheat set point or the type of control in general, and the
protection thresholds. See the table of parameters.
Procedure:
5.
press Esc one or more times to switch to the standard display;
6.
press Prg: the display shows a screen with the PASSWORD request;
7. press ENTER and enter the password for the Service level: 22, starting
from the right-most fi gure and confi rming each fi gure with ENTER;
8.
if the value entered is correct, the fi rst modifi able parameter is displayed,
network address;
9.
press UP/DOWN to select the parameter to be set;
10.
press ENTER to move to the value of the parameter;
11.
press UP/DOWN to modify the value;
12. press ENTER to save the new value of the parameter;
13.
repeat steps 5, 6, 7, 8 to modify the other parameters;
14.
press Esc to exit the procedure for modifying the Service parameters.
Note:
•
if when setting a parameter the value entered is out-of-range, this is
not accepted and the parameter soon after returns to the previous
value;
•
if no button is pressed, after 5 min the display automatically returns to
the standard mode;
•
to set a negative value move to the left-most digit and press Up/Down.
"EVD evolution" +0300005EN - rel. 3.1 - 25.07.2011
Fig. 3.d
Fig. 3.e
Modifying the Manufacturer parameters
The Manufacturer level is used to confi gure all the driver parameters,
and consequently, in addition to the Service parameters, the parameters
relating to alarm management, the probes and the confi guration of the
valve. See the table of parameters.
Procedure:
15.
press Esc one or more times to switch to the standard display;
16.
press Prg : the display shows a screen with the PASSWORD request;
17.
press ENTER and enter the Manufacturer level password: 66, starting from
the right-most fi gure and confi rming each fi gure with ENTER;
18.
if the value entered is correct, the list of parameter categories is shown:
-
Confi guration
-
Probes
-
Control
-
Special
-
Alarm confi guration
-
Valve
19.
press the UP/DOWN buttons to select the category and ENTER to access
the fi rst parameter in the category;
20. press UP/DOWN to select the parameter to be set and ENTER to move to
the value of the parameter;
21.
press UP/DOWN to modify the value;
22.
press ENTER to save the new value of the parameter;
23. repeat steps 6, 7, 8 to modify the other parameters;
24.
press Esc to exit the procedure for modifying the Manufacturer
parameters.
Note:
•
all the driver parameters can be modifi ed by entering the Manufacturer
level;
•
if when setting a parameter the value entered is out-of-range, this is
not accepted and the parameter soon after returns to the previous
value;
•
if no button is pressed, after 5 min the display automatically returns to
the standard mode.
14
Fig. 3.f