Page 68
Rev 3 Service Manual MCC Hot / Cold 2021
EWPlus EO LVD
5/12
ACCESSING AND USING THE MENUs
Resources are organised into 2 menus which are accessed as explained below:
• “
Machine Status
” menu: press and release the
set
key.
• “
Programming
” menu: press for at least 5 secs the
set
key.
Either do not press any keys for 15 seconds (time-out) or press the
, key once, to confirm the last value displayed and return to
the previous screen.
"MACHINE STATUS" MENU
Access the Machine Status menu by pressing
set
and releasing the key. If no alarms are active, the “SEt” label appears.
Use the keys
and
to scroll through all the folders in the menu:
set
- AL: alarms folder (
only visible if an alarm is active
);
- SEt: Setpoint setting folder;
- Pb1: probe 1 - Pb1 folder;
- Pb2: probe 1 - Pb2 folder
*
(
EWPlus 971/974 EO LVD models only
);
- Pb3: power supply value folder.
* folder displayed if Pb2 present (H42 = y)
SETPOINT SETTING
:
To display the Setpoint value press the
set
key when the “SEt” label is displayed. The Setpoint value
appears on the display. To change the Setpoint value, press the
and
keys within 15 seconds.
Press
set
to confirm the modification.
set
set
set
LOCK SETPOINT MODIFICATION
: The keypad can be locked by programming the ‘LOC’ parameter.
With the keypad locked you can still access the ‘Machine Status’ menu by pressing
set
to display
the Set point, but you cannot edit them. To disable the keypad lock, repeat the locking procedure.
DISPLAYING THE PROBES
:
When labels Pb1 or Pb2* are present, press the
set
key to view the value measured by the
corresponding probe.
N.B.:
1) Pb2 is only present on EWPlus 971/974 EO LVD models
.
2) the value cannot be modified
.
PROGRAMMING MENU
To access the “Programming” menu, press the
set
key for more than 5 seconds. If specified, an access PASSWORD will be requested:
PA1
for “
User
” parameters and
PA2
for “
Installer
” parameters (see “PASSWORD” paragraph).
“
User
” parameters: When accessed, the display will show the first parameter (e.g. “diF”). Press
and
to scroll through all the
parameters on the current level. Select the desired parameter by pressing
set
. Press
and
to modify it and
set
to save the
changes.
“
Installer
” parameters: When accessed, the display will show the first folder (e.g. “CP”). Press
and
to scroll through the
folders on the current level. Select the desired folder using
set
. Press
and
to scroll through the parameters in the current
folder and select the parameter using
set
. Press
and
to modify it and
set
to save the changes.
N.B.: Make sure you switch the instrument off and on again each time the parameter configuration is changed, in order to
prevent malfunctioning in the configuration and/or timing in progress.
PASSWORD
Password PA1
: used to access “
User
” parameters. The password is not enabled by default (
PS1=0
).
To enable it (
PS1≠0
): press and hold
set
for longer than 5 seconds, scroll through the parameters using
and
until you see
the label
PS1
, press
set
to display the value, modify it using
and
, then save it by pressing
set
or
.
If enabled, it will be required in order to access the User parameters.
Password PA2
: used to access “
Installer
” parameters. The password is enabled by default (
PS2=15
).
To modify it (
PS2≠15
): press and hold
set
for longer than 5 seconds, scroll through the parameters using
and
until you
see the label
PA2
, press
set
, set the value to “15” using
and
, then confirm using
set
. Scroll through the folders until you
find the label
diS
and press
set
to enter. Scroll through the parameters using
and
until you see the label
PS2
, press
set
to
display the value, modify it using
and
, then save it by pressing
set
or
.
The visibility of “
PA2
” is as follows:
1)
PA1 and PA2 ≠ 0
: Press and hold
set
for longer than 5 seconds to display
PA1
and
PA2
. It will then be possible to decide whether
to access the “User“ parameters (
PA1
) or the “Installer“ parameters (
PA2
).
2)
Otherwise
:
The password
PA2
is amongst the level1 parameters. If enabled, it will be required when accessing the Installer
parameters; to enter it, proceed as instructed for password
PA1
.
N.B.: If the password entered is incorrect, the label PA1/PA2 will be displayed again and the procedure will need to be repeated.
MANUAL DEFROST CYCLE ACTIVATION
Hold down the
. key for longer than 5 seconds. It is only activates if the temperature conditions are fulfilled.
Otherwise, the display will flash three times to indicate that the operation will not be performed.
10.1
All Parameters <Cold units>
Summary of Contents for Cold MCC
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