Ascon Tecnologic Srl - X33H
– OPERATING INSTRUCTIONS – MX33HENG00 - PAGE 8
= 2
- Activation by front key (U, UP/F1, DOWN/F2) or by digital
input: the output is activated through the action of a front key
suitably configured for the function (= 2), or by means of the
activation of a digital input, always on condition it is correctly
configured (=12). These commands have bistable operation, which
means, for example, that upon the first action of the key or the
digital input, the output is activated, while upon the second, it is
deactivated. In this mode, the AUS output can also be switched off
automatically after a certain time, which can be set in the "tuA"
parameter. With "tuA" = OFF, the output is activated and
deactivated only manually; inversely, once it has been activated, the
output is switched off automatically after the time set. This function
can be used, for example, as a command for lights, for anti-fogging
resistances, or for other utilities.
4.13 - ALARM FUNCTIONS
All the parameters regarding the alarm functions are contained in
the
“
]
AL”
group
.
Le alarm functions of the appliance act on the internal buzzer, if one
is present and configured by means of the “buF” par., and on the
desired output, if it is configured by means of the “Out1”, “Out2”,
“Out3” or “Out4” parameters, in accordance with that which is set in
the aforementioned parameters.
The possible selections of these parameters for the functioning of
signalling alarms are:
= ALt
- when it is wished that the buzzer or the output be activated
under an alarm condition and that they can be manually deactivated
(alarm silencing) by pressing any key on the appliance (typical
application for an acoustic signal).
= AL
- when it is wished that the buzzer or the output be activated
under an alarm condition but that they cannot be manually
deactivated and are hence deactivated only at the cessation of the
alarm condition (typical application for a luminous signal).
= ALL
- when it is wished that the buzzer or the output be activated
under an alarm condition and that they remain activated also after
the cessation of the alarm condition (see alarm memory). The
deactivation (recognition of the alarm memorized) may then occur
manually by pressing any key only after the alarm has terminated
(typical application for a luminous signal).
= -ALt
- when it is wished to have the operation described as ALt
but with inverse operating logic (buzzer or output activated under
normal condition and deactivated under an alarm condition).
= -AL
- when it is wished to have the operation described as AL but
with inverse operating logic (buzzer or output activated under
normal condition and deactivated under an alarm condition).
= -ALL
- when it is wished to have the operation described as ALL
but with inverse operating logic (buzzer or output activated under
normal condition and deactivated under an alarm condition).
Any active alarm condition is signalled on the display of the
appliance by switching on the ALARM LED.
Any silenced or memorized alarm condition is signalled by the
ALARM LED flashing.
The alarm conditions of the appliance are:
- Errors in Sensors
“E1”, “-E1”, “E2, “-E2”, “E3”, “-E3”, “E4”, “-
E4”
- Temperature alarms
“HI 1”, “LO 1”, “HI 2”, “LO 2”, “HI 3”, “LO
3”, “HI 4”, “LO 4”
- External alarm
“AL”
- Door open alarm
“AdoP”
4.13.1 - TEMPERATURE AND HUMIDITY ALARMS
The temperature and humidity alarms act on the basis of the
measurement of the Pr1, Pr3 (temperature) and Pr4 (humidity)
sensors, of the type of alarm set in the
“Aty1”
,
“Aty2”,
and
“Aty4”
parameters
,
of the alarm thresholds set in the
“HAL1”
,
“HAL3”,
and
“HAL4”
parameters (maximum alarms),
“LAL1”, “LAL3”,
and
“LAL4”
parameters (minimum alarms), and of the related
intervention differentials
“dAL1”, “dAL3”,
and
“dAL4”.
Using the “Aty ” parameters, it is possible to establish whether the
“HAL” and “LAL” alarm thresholds should be considered as absolute
(“Aty”=Ab) or relative to the active Set Point (“Aty”=dE).
In the event of relative alarms referring to the Pr1 and Pr3 inputs,
the relative Set point will be the active temperature Set point “SPt”,
while for the Pr4 input, it will be the active humidity Set point “SPh”.
Some parameters may also be used to delay the enabling and the
intervention of these alarms.
These parameters are:
“PAL1”, “PAL3”,
and
“PAL4
- are the exclusion times for the
temperature (1,3) and humidity (4) alarms from the switching on of
the appliance whenever the appliance is under alarm conditions
when switching on.
“ALd1”, “ALd3”,
and
“ALd4”
- are the times of the delays in
actuating the temperature (1,3) and humidity (4) alarms
“dAd1”, “dAd3”,
and
“dAd4”
- are the exclusion times of the
temperature (1,3) and humidity (4) alarms from the opening of the
door.
“dALd”
- is the exclusion time of the temperature alarms referring
to the Pr1 input after the end of a defrosting cycle (and, if
programmed, also of the dripping cycle).
The alarms are enabled upon the expiry of the exclusion times and
activate after the “ALd” time when the temperature or humidity
measured by the related sensor rises above or falls below the
respective maximum and minimum alarm thresholds.
The alarm thresholds will be the same as those set in the “HAL” and
LAL” parameters if the alarms are absolute (“Aty”=Ab),
dAL1
dAL1
tim e
AL
off
O N
LAL1
HI 1
HAL1
Tem p.
Pr1
LO 1
off
off
O N
Example with absolute alarms of Pr1
or they will be the [”SP”+”HAL”] and [”SP”+”LAL”] values if the
alarms are relative (“Aty”=dE).
time
dAL1
dAL1
AL
off
ON
HI 1
LAL1
SPt
HAL1
Temp.
Pr1
LO 1
off
off
ON
Example with relative alarms of Pr1
The maximum and minimum alarms can be disabled by setting the
related "HAL" and "LAL" parameters = OFF.
At the same time as the alarm signal configured (buzzer and/or
output), the appliance signals the alarm by switching on the ALARM
LED, and showing on the display:
-
HI 1
in the case of maximum Pr1 temperature alarm
-
LO 1
in the case of minimum Pr1 temperature alarm
-
HI 3
in the case of maximum Pr3 temperature alarm
-
LO 3
in the case of minimum Pr3 temperature alarm
-
HI 4
in the case of maximum Pr4 humidity alarm
-
LO 4
in the case of minimum Pr4 humidity alarm
The error message will be displayed alternatively on the display
which normally shows the variable that the alarm refers to.
If the display does not normally show the variable that the alarm
refers to, the alarm message will be shown on the upper display
alternating with the variable established in the “diSU” par..
