User Interface; Assembling The Display Board (Accessory); Display And Keypad - Carel EVD evolution User Manual

The user interface consists of 5 LEDs that display the operating status, as
shown in the table:
EVD
evolution
Fig. 3.a
Key:
LED ON OFF
NET Connection available No connection
OPEN Opening valve -
CLOSE Closing valve -
Active alarm -
Driver powered Driver not powered
(*) Awaiting completion of the initial confi guration

3.1 Assembling the display board (accessory)

The display board, once installed, is used to perform all the confi guration
and programming operations on the driver. It displays the operating
status, the signifi cant values for the type of control that the driver
is performing (e.g. superheat control), the alarms, the status of the
digital inputs and the relay output. Finally, it can save the confi guration
parameters for one driver and transfer them to a second driver (see the
procedure for upload and download parameters).
For installation:
•
remove the cover, pressing on the fastening points;
•
fi t the display board, as shown;
•
the display will come on, and if the driver is being commissioned, the
guided confi guration procedure will start.
press
Fig. 3.b
Important: the driver is not activated if the confi guration procedure
has not been completed.
The front panel now holds the display and the keypad, made up of 6
buttons that, pressed alone or in combination, are used to perform all the
confi guration and programming operations on the driver.

3. USER INTERFACE

Flashing
Communication
error
Driver disabled (*)
Driver disabled (*)
-
Wrong power supply
(see chap. Alarms)
Tab. 3.a
press

3.2 Display and keypad

The graphic display shows 2 system variables, the control status of the
driver, the activation of the protectors, any alarms and the status of the
relay output.
1
2
Key:
1 1st variable displayed
2 2nd variable displayed
3 relay status
4 alarm (press "HELP")
5 protector activated
6 control status
7 adaptive control in progress
Display writings
Control status
ON Operation
OFF Standby
POS Positioning
WAIT Wait
CLOSE Closing
INIT Valve motor error reco-
gnition procedure (*)
TUN Tuning in progress
(*) The valve motor error recognition procedure can be disabled. See
paragraph 9.5
Keypad
Button Function
Prg opens the screen for entering the password to access program-
ming mode.
•
if in alarm status, displays the alarm queue;
•
in the "Manufacturer" level, when scrolling the parameters, shows
the explanation screens (Help).
•
Esc exits the Programming (Service/Manufacturer) and Display
modes;
•
after setting a parameter, exits without saving the changes.
•
navigates the display screens;
•
increases/decreases the value.
UP/
DOWN
•
switches from the display to parameter programming mode;
•
confi rms the value and returns to the list of parameters.
Enter
Note: the variables displayed as standard can be selected by
confi guring the parameters "Display main var. 1" and "Display main var. 2"
accordingly. See the list of parameters.
"EVD evolution" +0300005EN - rel. 3.1 - 25.07.2011
13
ENG
7
6
5
4
3
Fig. 3.c
Protection active
LowSH Low superheat
LOP Low evaporation tempe-
rature
MOP High evaporation tempe-
rature
High High condensing tempe-
Tcond rature
Tab. 3.b
Tab. 3.c