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5.2 FU2. UNIVERSAL CONTROL
The appliances are equipped with a precise state-of-the-art
electronic microprocessor control system.
• Comfort control with digital preselection of bottom resp.
food temperature and cooking time,
• Process Comfort control with additional digital preselection
of starting time and automatic steam condensation after
pressure cooking for pressure braising pans.
The control system can also be remotely controlled using a
PC. For control-system operation, please refer to the Operat-
ing Instructions.
The symbol on the operating foil as well as the function of
the key (V) for steam condensation after pressure cooking
is only present on tilting pressure braising pans.
Temperature setting
Cooking
If the nominal temperature set on the display (AT) is equal or
lower than 230°F (110°C), control takes place via the food sen-
sor fitted to the external side wall of the pan. The appliance is
set to the "Cooking" operating mode. The nominal temperature
is reached during heating up and then kept at this value - but
not exceeded - by electronic control and energy is supplied as
and when required. If pressure cooking is not selected, a max-
imum setting of no more than 212°F (100°C) is recommended.
Frying
If the nominal temperature set on the display (AT) is higher
than 230°F (110°C), control takes place via the bottom sensor
fitted underneath the pan. The appliance is set to the "Frying"
operating mode. The nominal temperature is reached during
heating up and then kept at this value - but not exceeded - by
electronic control and energy is supplied as and when
required.
When the appliance is switched on (switch S), the contactor
(K4) is also always energized. The two other contactors (K1
and K2) switch the heating on and off simultaneously as
required, i.e. with a mutual delay of approximately 1 second.
Displays
AT (3 digits) Temperatures (if all 3 digits light up as well as
the point after the third digit, then this means
that 0.5°F must be added on after the point).
Parameter number (PNo.).
Parameter value (if all 3 digits light up as well as
a decimal point, then the numeral must be multi-
plied by 1000. E.g. display = 3.99, value =
3990).
Software version.
AD (3 digits) Cooking time.
AZ (4 digits) Clock time.
Starting time.
Delay time.
5.2.1 PARAMETER PROGRAMMING
General remarks
The same software is used for all appliances which are
equipped with this control system. To ensure that each appli-
ance operates as desired, specific parameters must be
entered. The control systems which are installed in the appli-
ances at the factory or are in stock, are equipped with the
microprocessors fitted including the software. The software
contains a default setting (GS) of the parameters (PNo.). The
default setting is selected in such a way that a minimum of
parameters have to be adjusted for the individual setting of the
different appliances. In principle, the corresponding parame-
ters have to be entered for each appliance.
Software version
The microprocessor (MP) bears an adhesive label stating the
software version and the date. Any change in the software
usually also involves a change in the parameters. Please
always ensure that the version of the parameter list used
matches the software version. The following general rule
applies: if the software version has a different number, the
parameter list with the same version must also be used. If the
software version has a different additional letter in the version
number (e.g. version 2.51A, version 2.51B, etc.), the parame-
ter list does not change. Only the number of the version with-
out the additional letter is important for the parameter list.
Microprocessor (MP)
2 IC insertion sockets are located on the control print. The
large insertion socket for 64 pins accepts the microprocessor.
The software program is located in the ROM (Read Only Mem-
ory) of the microprocessor chip. An OTP version (One Time
Programmable) microprocessor is used. This version can only
be written to once and cannot be erased. This means that any
program change also means the use of a new chip. The old
chip can no longer be used.
EEPROM (EP)
2 IC insertion sockets are located on the control print. The
small insertion socket for 8 pins is for the EEPROM (Electri-
cally Erasable Programmable Read Only Memory). The
parameters are stored in this IC. Once stored, the parameters
remain in this IC even when disconnected from the power sup-
ply until they are changed by reprogramming or erased.
Before the parameters are changed for the first time to suit an
appliance, the values for the default setting must be loaded
into the EEPROM. The parameters can be entered in 2 differ-
ent ways:
Manual input (the more frequent case) and PC input.
5.2.2 MANUAL PARAMETER INPUT
Default setting (GS) of the parameters
The default setting of the parameters is the same for all appli-
ances which are equipped with this control system. Dependent
on the type of appliance, more or fewer parameters are
required with values that differ from each other to some
degree.
3 of the 4 buttons on the membrane keyboard (Q, R, V and P)
are used for the programming of parameters. The buttons are
located in the bottom row on the operating panel. Buttons V
and P are located under the membrane and are not visibly
marked.
TT Button, activation of settings
LT Lamp, cooking temperature
DT Button, cooking time
LD Lamp, cooking time expires
ZT Button, starting time
LZ Lamp, starting time
Q Button, acoustic signal
R Button, soft
LS Lamp, temperature
pre-setting
AT Display, cooking tempera-
ture
T Temperature selection knob
AD Display, remaining cooking
time
D Cooking time knob
AZ Display, time
Z Starting time knob
LV
P
V
S Control switch
H Switch on the power isolator