ASCON TECNOLOGIC - Y39E
- OPERATING INSTRUCTIONS - Vr. Mondial Group - 10/10 - ISTR-MY39EENGmondial - PAG. 5
Please remember that visualisation of the Pr1 probe can be
changed by the defrosting display lock function, by using the
parameter
“d.dL”
(see defrost function).
4.4 - DIGITAL INPUT
The digital input present on the instrument (at pin 12 or at pin 11 if
“i.P2” = 3) accepts free voltage contacts, the function carried out is
defined by the parameter
“i.Fi”
and the action can be delayed for
the time set in parameter
“i.ti”.
The parameter “i.Fi” can be configured for the following functions:
= 0
- No function
= 1
-Cell door opening by contact normally open: on closing the
digital input (and after the “i.ti” time) the instrument visualises
oP
and the variable set in parameter “i.dS” alternately on the display.
With this function mode, the action of the digital input also activates
the time that can be set in parameter "A.oA" after which the alarm
is activated to signal that the door has been left open.
=2
-Cell door opening with fan stop by contact normally open: on
closing the digital input (and after the “i.ti” time) the fans are
stopped and the instrument visualises
oP
and the variable set in
parameter “i.dS” alternately on the display. With this function mode,
the action of the digital input also activates the time that can be set
in parameter "A.oA" after which the alarm is activated to signal that
the door has been left open and the fan restart.
= 3
- Cell door opening with compressor and fan stop by contact
normally open: similar to “i.Fi” = 5 but with fan and compressor
stop. At the intervention of the door open alarm alarm compressor
and fan restarts.
= 4
- External alarm signal by contact normally open: on closing
the digital input (and after the “i.ti” time) the alarm is activated and
the instrument visualises
AL
and the variable set in parameter
“i.dS” alternately on the display.
= 5
- Signalling of external alarm with disablement of all the control
outputs by contact normally open: on closing the digital input (and
after the “i.ti” time) all the control outputs are disabled, the alarm is
activated and the instrument visualises
AL
and the variable set in
parameter “i.dS” alternately on the display.
= 6
- Selecting the active set point (SP/SPE) with contact normally
open: on closing the digital input (and after the “i.ti” time) the
temperature set point “SPE” is activated. When instead the input is
open the set point “SP” is active.
= 7
- Switching on/switching off (Stand-by) of instrument by contact
normally open: on closing the digital input (and after the “i.ti” time)
the instrument is switched on while it is placed in Stand-by when
opened.
= 8
- Signalling of external alarm without alarm signalling activation
and with disablement of all the control outputs by contact normally
open: on closing the digital input (and after the “i.ti” time) all the
control outputs are disabled, the alarm is activated and the
instrument visualises
noF
and the variable set in parameter “i.dS”
alternately on the display.
= 9
- Signalling of external alarm with disablement of all the control
outputs by contact normally open: on closing the digital input (and
after the “i.ti” time) all the control outputs are disabled, the alarm is
activated and the instrument visualises
noF
and the variable set in
parameter “i.dS” alternately on the display.
= -1, -2, -3, etc.
- Like “i.Fi” with positive values but with function
logic reversed (contact normally closed)
4.5 - OUTPUTS AND BUZZER CONFIGURATION
The instrument outputs can be configured by the relative
parameters
“o.o1” , “o.o2”, “o.o3”.
The outputs can be configured for the following functions:
= ot
- to control the compressor or however, the temperature
control device
= dF
- to control the defrosting device
= Fn
- to control the fans
= Au
- to control the auxiliary device
= At
- to control a silenceable alarm device through a contact that
is normally open, and then closed when the alarm sounds
= AL
- to control an alarm that cannot be silenced through a
contact that is normally open and closed when the alarm sounds.
= -t
- to control a silenceable alarm device through a contact that is
normally closed, and then open when the alarm sounds.
= -L
- control an alarm that cannot be silenced through a contact
that is normally closed and open when the alarm sounds.
= on
- Output on when the instrument is in on state. This mode can
be used to control lights, non-misting resistance on room door or
other utilities
= HE
- to control an heating device in neutral zone control mode
the compressor or however (“r.HC” = nr).
= oF
- Disabled output
The function carried out for auxiliary output (par. desired output =
Au) is defined by the parameter
“o.Fo”
and the function is
conditioned by the time set in parameter
“o.tu”.
The parameter “o.Fo” can be configured for the following functions:
= oF
- Auxiliary output not active
= 1
- Temperature control output delayed with contact normally
open: the auxiliary output is activated with delay that can be set on
the parameter "o.tu" compared to the output configured as ot. The
output is then turned off at the same time as the ot output is
disabled. This function mode can be used as a command for a
second compressor or for all other working utilities according to the
same ot output conditions, but which must be delayed after the
start up of the compressor to avoid excess electricity absorption.
= 2
- Activation by front key (U or DOWN/AUX) or by digital input
with contact normally open: the output is activated by pressing the
keys U or DOWN/AUX suitably configured (“t.UF” or “t.Fb” = 1).
These commands have a bi-stable function, Which means that
when first pressed, the output key is activated while the second is
disabled. In this mode, the AUX output can be turned off
automatically after a certain time that can be set on the parameter
"o.tu". With "o.tu" = oF the output is activated and deactivated only
manually, using the key (U or DOWN/AUX). Differently, the output,
once activated, is turned off automatically after the set time. This
function can be used, for example, as a cell light command, for
non-misting resistance or other utilities.
= 3
- Light output managed by Normal / Economy mode.
This output will be on in Normal mode and off in Economy mode
operation.
= 4
- Internal Light output managed by digital input. This output will
be on when door is opened (only if “i.Fi”= 1, 2, 3).
The internal buzzer (if present) can be configured by par.
“o.bu”
for the following functions:
oF
= Buzzer always disable
1
= Buzzer signal active alarms only
2
= Buzzer signal key pressed only (no alarm)
3
= Buzzer signal active alarms and key pressed
4.6 - TEMPERATURE CONTROL
The regulation of the instrument is ON/OFF and acts on the outputs
configured as “ot” and “HE” depending on the measuring of probe
Pr1, of the active Set Point
“SP”
(or
“SPE”
), the intervention
differential
“r.d”
(or
“r.Ed”
) and the function mode
“r.HC”
.
Depending on the function mode programmed on the parameter
“r.HC” the differential is automatically considered by the regulator
with positive values for a Refrigeration control (“r.HC”=C) or with
negative values for a heating control (“r.HC”=H).
ON
r.HC=C
(ot)
Out
Pr1
Temp.
SP
off
ON
ON
off
r.HC=H
ON
ON
Out
(ot)
time
r.d
SP
off
Temp.
Pr1
off
ON
time
r.d
If “r.HC” = nr the output configured as “ot” work with Cooling Action
(like “r.HC”=C) and the output configured as “HE” work with Heating
Action
