Eliwell EWDR 983/CS Manual

EWDR 983-985/CS (LX)
EWDR 985/CSK (LX)
electronic controllers for ventilated refrigeration units
USER INTERFACE
The user interface has a 6 LED display to
indicate alarm status and five buttons for
controlling instrument status and pro-
gramming.
BUTTONS AND LEDS
UP Increase in value of
parameter Menu scrolling
and activation of defrost
function
(Parameter programmable
H31)
DOWN Decrease in value of
parameter
Menu scrolling and activation
of associated function
(Parameter programmable
H32)
set Access to different levels of
menu Alarm display, set
point, probes and rtc
Access to programming of
parameters
fnc Exit current level of
menu Confirmation of value of
parameter
(Parameter programmable
H33)
aux Activation of associated
function using parameter
H34
LED Description Indication
Reduced set point Lights up when
inserted LED set point is
displayed*, blinking
* EWDR983/985 /CS (LX) only when reduced set
point is inserted
LED 'on' with compressor
LED on. Blinking
for delay, protection
or activation blocked
defrost LED 'on' during defrosting
Blinking when
activated manually
or by digital input
fan LED permanently on when
fans are operating
alarm LED 'on' if alarm is present.
Blinking for silenced
alarm
auxiliary LED 'on' for active output
decimal point 'on' to indicate of
voltage when on
stand-by and display
'off'
SIGNAL LED
The status of the external devices, func-
tions and controllers is described by the
device LEDs.
DISPLAY
This is used to display the inputs, the set
point, the parameters and related values,
alarms, functions and the status of the
device.
DESCRIPTION OF MENU
Access to both menus is controlled by
the 'set' button. If it is pressed and
immediately released, the 'machine sta-
tus menu' is displayed. Hold the same
button down for 5 seconds to access the
'parameter programming menu'.
When one of the two menus has been
accessed, you can navigate between the
level 1 folders using the 'UP' and 'DOWN'
buttons. The folders are opened by
pressing the 'set' button once. You can
now scroll through the contents of each
folder, modify it or use its functions.
You can exit each level of both menus in
three ways: using the 'fnc' button, if a
new value is confirmed by pressing the
'set' button or, when the time-out has
elapsed (15 seconds inactivity on the
device).
MACHINE STATUS MENU
The 'machine status menu' contains the
folders and basic information on the
device:
-AL: alarm folder
-SEt: Set point setting folder
-rtc: Real Time Clock folder(if present)
-Pb1: 'probe 1 value' folder
-Pb2: 'probe 2 value' folder
-Pb3: 'probe 3 value' folder
If no alarms are present, the "SEt" label
is displayed. From here, you can scroll
down the other menu items using the
UP' and 'DOWN' buttons. Each folder
can be accessed by pressing the 'set'
button once.
Values are modified using the 'UP' and
'DOWN' buttons and the 'set' button
that confirms the selected value and
takes you back to the higher level.
Setting the set point
Access the 'machine status menu'. If no
alarms are present, the "SEt" label is dis-
played. By pressing and immediately
releasing the 'set' button, the set point
value can be set using the UP' and
'DOWN' buttons. Press and release the
'set' button again or press the 'fnc' but-
ton to go back to the main menu level.
The set point setting folder is also closed
when the time-out elapses.
Alarm on
If an alarm condition exists when the
Machine Status menu is accessed the
"ALfolder label appears.
Real Time Clock (/C models)
By pressing the "set" button when the
"rtc" label appears, the label d00 (days)
is displayed. Use the "UP" and "DOWN"
buttons to set days. If you do not use
the buttons for over 2 seconds or if you
press "set" you switch to the hours (h00)
and minutes ('00) folders: use the "UP"
and "DOWN" buttons to set the hours
and minutes respectively. If you do not
use the keyboard for over 15 seconds
(time-out) or if you press the "fnc" but-
ton once, the last value shown on the
display is confirmed and you go back to
the previous screen mask.
NOTE: Always use the "set" button to
confirm the hours/minutes/days set-
ting.
NOTE2: We recommend considering
the first day d00 as SUNDAY.
PARAMETER PROGRAMMING MENU
Access the menu by pressing the 'set'
button for at least 5 seconds. The menu
structure enables all parameter folders
to be divided into two levels. All the
level 1 folders can be accessed by enter-
ing the password 'PA1'.
Scroll down the level 1 folders using the
'UP' and 'DOWN' buttons. Press and
release the 'set' button next to the
selected label to access the parameters.
Scroll through the labels in the folder
using the 'UP' and 'DOWN' buttons,
press 'set' to display the current value of
the selected parameter, use the 'UP' and
'DOWN' buttons and set the required
value by pressing 'set'. To access the
level 2 folders in the 'Cnf' folder, select
the 'PA2' label, enter the password 'PA2'
and confirm with the 'set' button. All the
parameters that cannot be changed at
level 1 are in this level.
NOTE: Level 1 parameters will only be
displayed if you quit the 'parameter
programming menu' and repeat the
steps for manipulation of level 1 folders.
The steps to follow for manipulation of
level 2 parameters are the same as those
described for the level 1 structure.
N N O O T T E E : It is strongly recommended
that the instrument is switched off
and on again each time parameter