OSAKA
- OF 33 AZ - OPERATING INSTRUCTIONS - Vr. 01 - PAG. 2
1 - Key Set
: Used for setting the Set point and for
programming the function parameters
2 - Key DOWN/Aux
: Used for decreasing the values to be set
and for selecting the parameters. It can also be programmed
via the parameter “Fbd” to carry out other functions such as
activating the Aux output, starting up the continuous cycle,
selecting the active set point or turning on and off (stand-by)
the device (see par. 4.12).
3 - Key UP/DEFROST
: Used for increasing the value to be set,
for selecting the parameters and for activating manual
defrosting.
4 - Key F :
Used for visualising the temperatures taken by the
cell probes and evaporator (Pr1 and Pr2) and the internal clock
(if present). It can also be programmed via the parameter
“USrb” to carry out other functions, just like the key
DOWN/AUX (see par. 4.12).
5 - Led OUT
: Indicates the compressor output status (or the
temperature control device) on (on), off (off) or inhibited
(flashing)
6 - Led DEF :
Indicates defrosting in progress (on) or dripping
(flashing)
.
7 - Led FAN :
Indicates fan output status on (on), off (off) or
delayed after defrosting (flashing)
8 - Led AUX
: Indicates AUX output status on (on), off (off) or
inhibited (flashing)
9 - Led AL
: Indicates the alarm status (on), off (off) and
silenced or memorized (flashing)
10 - Led SET
: Indicates the input in programming mode and
the programming level of the parameters. It also serves to
indicate the Stand-by status.
11 - Led - :
Indicates that a low temperature alarm is in
progress (lit) or that a low temperature alarm has been
memorised (flashing).
12 - Led OK :
Indicates that no alarms are in progress
13 - Led + :
Indicates that a high temperature alarm is in
progress (lit) or that a high temperature alarm has been
memorised (flashing).
2 - PROGRAMMING
2.1 - PROGRAMMING OF THE SET POINT
Press the key Set then release it and the display will show
SP 1
(or
SP 2
if the second set is active at that time) alternating with
the set value (see selection of the active set point).
To change it press the UP key to increase the value or DOWN
to decrease it.
These keys increase or decrease the value one digit at a time,
but if the button is pressed for more than one second the value
increase or decreases rapidly, and after two seconds pressed,
the speed increases even more to all the desired valued to be
reached rapidly.
Exiting the Set mode is achieved by pressing the Set key or
automatically if no key is pressed for 15 seconds. After that
time the display returns to the normal function mode.
2.2 - PARAMETERS PROGRAMMING
To access the instrument’s function parameters, press the key
Set and keep it pressed for about 5 seconds, after which the
SET led will light up, the display will visualised the code that
identifies the first gro
up of parameters (“
]
SP
“) and the group of
parameters that are to be edited are selected by pressing the
UP and DOWN keys.
Once the group of parameters has been selected, press the
Set and the code that identifies the first parameter in the
selected group will be visualised.
Again using the UP and DOWN keys, the desired parameter
can be selected and pressing the Set key, the display will
alternately show the parameter code and its setting that can be
changed with the UP and DOWN keys.
Once the desired value has been set, press the key Set again:
the new value will be memorised and the display will show only
the abbreviation of the selected parameter.
Pressing the UP and DOWN keys, it is possible to select
another parameter (if present) and change it as described.
To return to select another group of parameters, keep the UP
or the DOWN key pressed for about 1 second, after which the
display will return to showing the code of the parameter group.
Release the pressed key and using the UP and DOWN keys it
will be possible to select another group (if present).
To exit the programming mode, do not press any key for about
20 seconds, or keep the UP or DOWN key pressed until it exits
the programming mode.
L o n g e r
H o ld
2 s e c .
H o ld fo r
2 s e c .
H o ld fo r
5 s e c .
H o ld fo r
2.3 - PARAMETER PROTECTION USING THE PASSWORD
The instrument has a parameter protection function using a
password that can be personalised, through the
“PASS”
parameter in the
“
]
PAn”
set
.
If one wishes to have this protection, set the password number
desired in the parameter “PASS”.
When the protection is working, press the Set key to access
the parameters and keep it press for about 5 seconds, after
which the LED SET will flash and the display will show “0” .
At this point, using the UP and DOWN keys, set the password
number programmed and press the key “Set”.
If the password is correct, the display will visualise the code
that identifies the first group of parameters(“
]
SP
“) and it will be
possible to programme the instrument in the same ways
described in the previous section.
Protection using a password can be disabled by setting the
parameter “PASS” = OFF.
2.4 - PARAMETERS PROGRAMMING LEVELS
The instrument has two parameter programming levels.
The first level (“visible” parameters) is accessed according to
the procedure described above (with or without password
request) while the second level (“hidden” password) can be
accessed according to the following procedure.
Remove the power supply to the instrument, press the key Set
and return power to the instrument, keeping the key pressed.
After about 5 sec. the SET led will light up, the display will show
the code that identifies the first group of parameters(“
]
SP
“) and
it will be possible to set the parameters of the instrument using
the same programming procedure described previously.
Once the parameter has been selected and the SET is on, it
means that the parameter can be programmed even on the first
level ("visible”).
If the LED is off it means that the parameter can only be
programmed on this level (i.e. “hidden”).
To change the visibility of the parameter, press the key U: the
led SET will change status, indicating the accessibility level of
the parameter (on = parameter “visible”; off = parameter
“hidden”).
The access procedure for “hidden” parameters allows the
“PASS” parameter to be checked and changed, and is useful
therefore if the password set has been forgotten.
2.5 - ACTIVE SET POINT SELECTION
The instrument allows up to 2 different regulation Set points to
be pre-set (
“SP 1”
and
“SP 2”
) and then to choose which one
to make active.
