grandimpianti C 140/33, Instructions For Installation And Use Manual

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4 - Ironing speed down
5 - VMS: "Machine working" lamp
6 - Machine START button
7 - Machine STOP button
8 - VST : "Machine live" lamp
9 - Preset temperature up
10 -Preset temperature down
11- Preset temperature reading
4.3 MACHINE USE
START UP
To start the machine, press the START but-
ton:
START
- the display will light up and show the
current temperature and preset speed (cf.
chapter “Control of roller rotation”).
- the VMS lamp will light up (VST always
on when the machine is powered)
- the fan will start working
- the roller will start revolving
- after 15 seconds, the heating is authorized
SHUTDOWN PROCEDURE
To stop the machine, press the STOP button.
STOP
The shutdown procedure depends on the
current temperature.
- if the temperature is
≤
automatic shut-
down temperature TA (by default 80
°
C), the
machine switches off.
- if the temperature is > temperature TA,
only the heating is switched off. When the
temperature drops below the temperature
TA, the whole machine will switch off.
Meantime, the temperature reading and the
VMS lamp will blink.
TA can be programmed by the manufacturer
or at the time of installation (see “Parameter
Programming “).
4.4 CONTROL OF ROLLER ROTA-
TION
The roller motor is controlled by a speed
regulator.
You may select 7 different factory preset
speeds, while speed 0 is used for the SMART
SYSTEM option speed adjustment accord-
ing to humidity).
The speed may be adjusted by the user when
the machine is ON by pressing the two arrow
keys « up » and « down ». The result is shown
on the speed display.
(Es.)
The last selected value will be recalled even
after a power break.
When the selected speed is not 0 upon start-
ing the machine, the roller will rotate at
speed 1 while the detected temperature re-
mains below the operating temperature TF
(130
°
C by default); once this temperature is
reached, the programmed speed will be acti-
vated.
If the temperature drops below TF during
operation, the roller speed will be read-
justed.
When the selected speed is 0, the belt will
rotate at speed 0 (i.e. the speed required by
the SMART SYSTEM), regardless of the
temperature.
4.5 HEATING
ELECTRICAL HEATING
Depending on the model, the electrical heat-
ing consists in modifying the current through
one or two groups of heaters, controlled by
the heating switches.
The choice between 1 or 2 heating units is
made by setting a parameter (see “Program-
ming parameters”).
HEATING BY A SINGLE HEATING
UNIT
When the machine is configured to work
with a single heating unit, a special control
function is activated (closing and opening
the heating relay switch around the set point)
in order to achieve and maintain the preset
temperature correctly and to avoid the ther-
mal overshoot associated with this kind of
heating.
It is therefore normal to hear the heating
relay switch switching frequently when you
select this functionality.
To show that the heating is on and working,
the decimal point of the temperature reading
lights up.
HEATING BY TWO HEATING UNITS
When the machine configured to work with
two heating units, the temperature regula-
tion switches the first unit just as if it were
the only controlled unit. The second is oper-
ated continuously when the temperature gets
below the required setting, and switches off
when the setting is attained. The second unit
also goes on when below a preset hysteresis
(see “Programming parameters”).
To show that the heating is activated, the
decimal point of the temperature reading lights
up continuously when both heating units are
on, and blinks when only one unit is.
GAS HEATING
On gas-heated appliances, a special elec-
tronic device controls the ignition and work-
ing of the heater. The microprocessor con-
trols the gas igniter directly when the tem-
perature is lower than the preset temperature.
As for resetting gas devices, reference is
made to the alarm section.
To show that the heating is activated, the
decimal point of the temperature indication
lights up.
The Alarm section also explains what to do
in the event that there is no flame.
INDIRECT STEAM HEATING
When the heating is done using the indirect
steam method, the machine will not perform
any temperature regulation (and the tem-
perature will be directly proportional to the
steam pressure fed to the machine).
The microprocessor simply reads the tem-
perature of the roller but will not affect the
heating itself.
PROGRAMMING THE OPERATING
TEMPERATURE
The operating temperature may be set when
the machine is on, using the following pro-
cedure:
Press the SET button.
The value set last will blink on the display.
SET
Use the + and – keys to change this value.
Hold the key down to change the number
rapidly.
3 seconds after releasing the + or – key, the
displayed value is stored; then the display
again will read the currently detected tem-
perature.
Programmable range: 0...Tmax
°
C
(32...Tmax
°
F)
Resolution: 1
°
C
The maximum value that the user may set
(Tmax) is established by the manufacturer
or at the time of installation by a special
procedure. See “Programming parameters”.
When the selected heating method is electri-