THE USER INTERFACE
USE OF THE KEYS
The keys of the instrument permit both
the utilisation of the menu and the direct
activation of a function.
USE OF THE MENUS
ACCESS TO THE MAIN MENU
The programming of the instrument is
organised by menu (see Fig. 2, Menu flow-
chart), which can be accessed by keeping
the key
pressed down for the time set
by H02 parameter.
NAVIGATION OF THE MENUS
In order to access the contents of each
folder, just press the key
once.
If called for, a password will be required.
There are two different passwords. The
first password (PA1) is for access to the
parameters in the PL1 folder. The second
password (PA2) is for access to the para-
meters in the PL2 folder. (see Fig. 2, Menu
flowchart).
At this point in the proceedings it is possi-
ble to scroll through the contents of each
folder & amend them .
If you do not use the keyboard or hit the
key within 15 seconds, the last value
displayed on the screen is confirmed
and you return to the previous screen.
DESCRIPTION OF FOLDERS
PL1 = user parameters (level 1)
This folders contains the parameters
required by the end user in order to make
any minimum amendments to the pro-
gramming parameters (see Table 6 and
Table 7).
PL2 = machine parameters (level 2)
This folders contains the parameters
required by the manufacturer and the
assembler for the optimum configuration
of the controlling machine (see Table 6
and Table 7).
St = machine status
In this folder the status of the input 2 can
be viewed; (see Table 4).
RAPID ACTIVATION
Certain specific functions (Setpoint,
defrost) are associated with keys on the
frontlet (see Table 2, Keys and functions
set directly).
DISPLAY AND DEFINITION OF THE SET-
POINT VALUE
In order to view the Setpoint value, keep
the key
pressed down for the time set
by Pa H02 parameter.
The Setpoint value will appear on the dis-
play and the temperature gauge icon will
begin to flash. In order to vary the
Setpoint value operate, within 15 seconds,
on the keys
and
If the parameter LOC = y is not possible to
modify the Setpoint.
MANUAL ACTIVATION OF THE DEFROST
CYCLE
Manual activation of the defrost cycle is
achieved by keeping the key
pressed
down for “Pa H02” seconds.
KEYPAD LOCK
The instrument anticipates, by means of
appropriately programming the “Loc”
parameter (see Table 6, “Miscellaneous”
parameters), the possibility of disabling the
functioning of the keypad.
In the event the keypad is locked, the user
can always access the programming MENU
by pressing the key
If there is not available to start defrosting,
the defrost LED will blink 5 times
PARAMETERS
The parameters can be viewed in two dif-
ferent tables: the first (see Table 6)
describes the function of the parameter,
while the second (see Table 7) lists the
characteristics of each parameter.
DIAGNOSTICS
The alarm icon indicates an alarm condi-
tion. Breakdowns are indicated on the
screen (see Table 5).
When an alarm status occurs, it is possible
to silence the buzzer and/or relay config-
ured as an alarm, by pressing any key.
The buzzer is optional and is present on
the EWDB 111 B model.
EWDB 111
electronic controller for refrigerating units
KEY
DESCRIPTION
UP key
DOWN key
ESC key
ENTER key
FUNCTION
Scrolls through the menu
items
Increases the values
Scrolls through the menu
items
Decreases the values
Returns to the previous
level
Accesses the menus
Confirms the commands
Table 1
Keys and menu
PARAMETER
Pb2
sensor 2
VALUE
sensor 2 value
Table 4
Machine status table
KEY
DESCRIPTION
UP
ESC
DOWN
ENTER
FUNCTION
Activates manual defrost
function
Accesses the setpoint
Accesses the program-
ming menu
Table 2
Keys and functions set directly
Fig. 1
Frontlet of instrument
ICON
INDICATION
alarm active
temperature
range (°F if
icon turn-off)
defrost active
compressor
DETAILS
Permanently lit up in the
event of an alarm, flash-
ing in the event of a
silenced alarm
Flashing in paramete
programming
Permanently lit up in the
event of defrosting in
progress, flashing in the
event of manual defrost
Permanently lit up in the
event of compressor
valve working, flashing in
the event of delay in
activating
Table 3
Icons
