Ndustrio T Serie Manuel D'instructions page 27

1) Contactor/pressure switch failure (during the start phase, it checks
the integrity of the power and pressure switch contacts)
2) Electrical part compartment temperature: Indicates that threshold
of 55°C has been exceeded (check the operation of the rear
cooling fan, etc.)
When there is a signal, the control unit shows the type of signal on
the screen. Pressing "OK" notifies that the signal has been seen and
heard and the message disappears.
T64E
The following types of ALARM may be displayed on the screen (fig.
29 item D) if problems are detected.
1) ALL1 - General Alarm (baking fan, over-temperature in the motor
compartment, max over-temperature inside the baking chamber)
2) ALL2 - Thermocouple Alarm
3) ALL3- Electric panel overtemperature alarm
Leave the equipment to cool down and send for technical
assistance to remedy the cause of the failure and to make sure
that no part of the equipment is damaged.
In certain working conditions the oven may block and/or switch off,
due to one of the following causes:
- The conveyor belt gear motor is fitted with an electrical guard
system that stops the gear motor in the event of excessive power
absorption.
- The fan motor is fitted with a thermal cut-out that stops the motor in
the event of excessive power absorption. To re-start, after removing
the cause of the problem, the motor must first be allowed to cool
down.
- If the internal temperature exceeds the maximum threshold due to a
malfunction, the safety thermostat triggers automatically to block
operation of the oven; to restore normal operation unscrew the cap
protecting the safety thermostat (fig.14 item P) and press the button
underneath to rearm the thermostat; replace the protective cap to
prevent the thermostat from deteriorating and compromising proper
running of the appliance. TT98E only: The oven has two
independent safety thermostats with manual reset: one for the left
side (fig.14 item P) and one on the right side of the oven (fig.36 item
G).
IMPORTANT! If the appliance is still malfunctioning when it is
turned on again, stop it following the procedure in point 3.3.;
disconnect the power plug from the socket and contact a
specialised service technician.
3.2.17 ICONOGRAPHY (T75E T97E-TT98E only)
ALARMS figure 30:
A Maximum temperature exceeded alarm.
B Fan alarm.(T75E-T97E only).
C Belt alarm.
D Motor compartment alarm (TT98E only: this is triggered in case of
intervention of one of the thermal cut-out devices on the motors or
due to the intervention of a thermal sensor for overtemperature in the
motor compartment)
E Thermocouple failure (TT98E only).
VIEW figure 30
F 4 temperature setting (TT98E only).
TIMER figure 31
G Timer enable or set menu.
H Timer enabled.
OVEN STATUS figure 31
I Oven off.
L Oven on, heating phase.
M Oven on, cooking.
N Economy function enabled.
3.2.18 CEILING-FLOOR SET POINT TEMPERATURE
RESTRICTIONS (T75E-T97E-TT98E only)
For better control and safety, this control unit has been fitted with the
option of restricting the ceiling and floor set point temperatures to
within a certain range of each other.
When the difference between the two temperatures reaches 20° C
(T75E-T97E) or 15°C (TT98E), a parameter that cannot be modified
by the user, a message is displayed on the right, under the baking
time indicator, to indicate that the maximum allowed difference
between the two values has been reached (example T75E-T97E in
Fig.32).
Fig.32 – Warning: max. ceiling-floor difference reached
Fig.33 – Warning: oven outside maximum temperature difference
At this point the user has two options:
1) press "OK" so as to free the temperatures from the restriction;
2) continue to use the arrow keys as normal.
If "OK" is pressed the oven enters free mode, the message disappears
and the oven can be used in a traditional manner.
If "OK" is not pressed and the up arrow and down arrow keys are
used, the message will only disappear if the values are within the
maximum difference allowed, whereas if this difference is exceeded
an increase (decrease) in one value will result in a simultaneous
increase (decrease) in the other.
When "OK" is pressed to free the set point temperature from
restrictions, a message of the type shown in figure 33 is displayed as
a warning.
After pressing the oven start button it will no longer be possible to
insert or remove the temperature restrictions, as this operation is only
possible when the oven is turned off.
Both the warning messages relating to the difference in temperatures
disappear when the oven "Start" button is pressed. When the oven is
turned on no control message will be displayed, and the two set point
temperatures will either be restricted or free, according to the settings
entered when the oven was turned off. When the oven "Stop" button
is pressed it will once again be possible to select whether the
temperatures are to be free or restricted.
The control messages have also be entered in the program call-ups;
The warning messages disappear, when the oven is turned off, if the
baking time is modified; however they will reappear as soon as the
two set point temperatures are modified.
If you press "OK" to free the two temperatures, but they fall within
the preset range of 20°, the message will disappear but it will be
displayed again if the range is exceeded later.
When working in manual and freed using "OK", adjust to outside
range, turn the oven on, cook the food, turn the oven off. If the
temperatures are outside the range they will remain outside the range
and the warning message shown in fig. 32 will be displayed;
The same thing goes when working in manual, outside range, with
the control unit turned off: proceed as above.
Store a program with freed temperatures but with a difference of
20°C (T75E-T97E) or 15°C (TT98E). When the program is called up
and started the two temperatures will remain restricted;
3.2.19 PROGRAM IMPORT/EXPORT FROM/TO USB
(TT98E only)
To the side of the LCD control panel, the appliance has a USB
interface which can be used to connect an external storage device
(pen drive) to import or export programs.
To access these functions, insert the device then press and hold down
the P key. This will open a window to guide the user in the choice of
the following operations
IMPORT (key 1): the programs in the control unit will be
overwritten by the ones in the USB device. The files need to reside in
the main directory (root) of the USB device.
The files need to reside in the main directory (root) of the USB
device.
EXPORT (key 2): the programs in the control unit will be copied to
the USB device.
The copied files will reside in the main directory (root) of the device.
In both cases, the files are named:
PR_xx.T98 with xx from 01 to 20.
NOTE:
Only storage devices with FAT16 or FAT32 formatting will be
supported.
3.3 STOPPING
T64E:
To stop the appliance, press the STOP button (fig.29 item 17); the
fan and movement of the belt will continue for about 30 minutes
to bring down the temperature gradually and safeguard the
duration of the components; only after this time should the
power be disconnected turning the switch to position "0" (fig.29b
item E).
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