Eliwell EWDB 111 Manual

THE USER INTERFACE
Fig. 1 Frontlet of instrument
USE OF THE KEYS
The keys of the instrument permit both
the utilisation of the menu and the direct
activation of a function.
Table 1 Keys and menu
DESCRIPTION FUNCTION
KEY
UP key Scrolls through the menu
items
Increases the values
DOWN key Scrolls through the menu
items
Decreases the values
ESC key Returns to the previous
level
ENTER key Accesses the menus
Confirms the commands
Table 2 Keys and functions set directly
KEY DESCRIPTION FUNCTION
UP Activates manual defrost
function
ESC Accesses the setpoint
DOWN
ENTER Accesses the program-
ming menu
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
EWDB 111
electronic controller for refrigerating units
Table 3 Icons
INDICATION
ICON
alarm active
temperature
range (°F if
icon turn-off)
defrost active
compressor
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).
Table 4 Machine status table
PARAMETER
once.
Pb2
sensor 2
RAPID ACTIVATION
Certain specific functions (Setpoint,
DETAILS
defrost) are associated with keys on the
Permanently lit up in the
frontlet (see Table 2, Keys and functions
event of an alarm, flash-
set directly).
ing in the event of a
silenced alarm
Flashing in paramete
DISPLAY AND DEFINITION OF THE SET-
programming
POINT VALUE
In order to view the Setpoint value, keep
Permanently lit up in the
the key
event of defrosting in
progress, flashing in the
by Pa H02 parameter.
event of manual defrost
Permanently lit up in the
The Setpoint value will appear on the dis-
event of compressor
play and the temperature gauge icon will
valve working, flashing in
begin to flash. In order to vary the
the event of delay in
activating
Setpoint value operate, within 15 seconds,
on the keys
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
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.
VALUE
The buzzer is optional and is present on
sensor 2 value
the EWDB 111 B model.
pressed down for the time set
and
pressed