1592002810 XH360L-V GB r1.0 10.09.2015
XH360L – XH360LV
1/5
XH360L-V
TEMPERATURE AND HUMIDITY CONTROLLER
FOR SEASONING-MATURING CABINETS
1.
GENERAL WARNING
1.1
PLEASE READ BEFORE USING THIS MANUAL
This manual is part of the product and should be kept near the instrument for easy and quick
reference.
The instrument shall not be used for purposes different from those described hereunder. It cannot
be used as a safety device.
Check the application limits before proceeding.
Dixell Srl reserves the right to change the composition of its products, even without notice,
ensuring the same and unchanged functionality.
1.2
SAFETY PRECAUTIONS
Check the supply voltage is correct before connecting the instrument.
Do not expose to water or moisture: use the controller only within the operating limits avoiding
sudden temperature changes with high atmospheric humidity to prevent formation of
condensation
Warning: disconnect all electrical connections before any kind of maintenance.
Fit the probe where it is not accessible by the End User. The instrument must not be opened.
In case of failure or faulty operation send the instrument back to the distributor or to “Dixell s.r.l.”
(see address) with a detailed description of the fault.
Consider the maximum current which can be applied to each relay (see Technical Data).
Ensure that the wires for probes, loads and the power supply are separated and far enough from
each other, without crossing or intertwining.
In case of applications in industrial environments, the use of mains filters (our mod. FT1) in
parallel with inductive loads could be useful.
2.
GENERAL DESCRIPTION
The
XH360L,
38x185
format and the
XH360V,
100x64
format, are microprocessor controllers, suitable
for applications on medium or low temperature refrigerating units. They have 6 output relays to control
compressor, heating elements, defrost/extractor fan, fan, de-humidifier/light and humidifier. They have 2
NTC inputs one for thermostat the other one for defrost. It’s also present a 4÷20mA input for humidity.
There is one digital input (free contact) configurable by parameter. An output allows the user to
programme the parameter list with the
“Hot Key”.
3.
TEMPERATURE REGULATION
The temperature regulation is performed through neutral zone using compressor and heater output
relays.
Set point
OFF
ON
•
Heating
output: CUT IN is “SET_T-dbt”, CUT OUT is when the temperature reaches the set point.
•
Compressor
output CUT IN is “ SET_T +dbt”, CUT OUT is when the temperature reaches the set
point.
3.1
DEFROST
During defrost the temperature control is disabled.
If the second relay is configured as defrost: oA2=dEF
(XH360L terminals 9-10-11, XH360V
terminals 6-7)
then two defrost modes are available through the “
tdF
” parameter: defrost with electrical
heater (tdF=rE) or hot gas (tdF= in). The defrost interval is control by means of parameter “
EdF
”:
(EdF=in) the defrost is made every “
IdF
” time, (EdF=Sd) the interval “IdF” is calculate through Smart
Defrost algorithm (only when the compressor is ON). At the end of defrost dripping time is started, set
by “
Fdt
” parameter.
To
disable
the defrost set the
MdF
parameter to
zero
If oA2 is different from dEF, defrost is made only by stopping compressor (tdF=rE).
To disable
defrosts set
MdF=0.
Humidity regulation during defrost depends on the
Hud
parameter.
With
Hud=no
humidity regulation is disabled.
Con
Hud=yES
humidity regulation is performed also during defrost.
4.
HUMIDITY REGULATION
The humidity regulation is performed through neutral zone, by humidifying dehumidifying actions.
Humidity control can be disabled setting the
SET_RH to “nu”
value. In this case only the temperature
control is perform.
4.1
HUMIDIFYING ACTION
The humidifying action is done enabling the humidifier relay when the humidity is lower than the
“SET_RH-dbH” value.
The relay is switch off when humidity reaches the set values.
4.2
DEHUMIDIFYING ACTION WITHOUT DEHUMIDIFIER RELAY, OA1 DIFFERENT FROM DEH
(XH360L TERMINALS 3-4, XH360V TERMINALS. 11-12)
In this case the dehumidifying action is performed by setting the following parameters in this way:
tHu = c-H kind of dehumidifying by means of heating and compressor relays
oA1 different from dEH (XH360L terminals 3-4, XH360V terminals. 11-12):
The heating and compressor outputs are activated together when humidity is higher than dbH
value. Outputs are disabled when humidity comes back to the SET_RH value.
4.2.1 Relation between cooling, heating and dehumidifying
1.
If is simultaneously present a request of cooling (temp>SET_T+dbt) and dehumidifying (RH >
dbH): the cooling action has the priority over the dehumidifying action: only the
compressor relay is energised till the SET_T is reached at this point also the heating relay is
enabled.
2.
If is simultaneously present a request of heating (temp< SET_T-dbt) and dehumidifying (RH >
dbH): the dehumidifying action has the priority over the heating action: both the
compressor and the heating relays are energised till the humidity set is reached at this point only
the heating relay is enabled.
4.3
DEHUMIDIFYING ACTION WITH DEHUMIDIFIER RELAY, OA1 = DEH – (XH360L
TERMINALS 3-4, XH360V TERMINALS. 11-12)
The configurable relay is used,
(
XH360L terminals 3-4, XH360V terminals. 11-12
)
setting the parameter
oA1 =dEH.
NOTE:
the LIGHT button is not more available;
Two kinds of de-humidifying are available:
4.3.1 Dehumidifying action with ONLY de-humidifier relay
By setting the parameter
tHu
=
db
the de-humidifying action is performed by enabling the de-humidifier
relay when the humidity is higher than SET_RH
+ dbH.
The relay is switch off when humidity comes back to the SET_RH value.
4.3.2 Dehumidifying action with de-humidifier and compressor relays
By setting the parameter
tHu
=
cHu
the de-humidifying action is performed by enabling the de-
humidifier and compressor relays together. when the humidity is higher than SET_RH
+ dbH.
The relays are switched off when humidity comes back to the SET_RH value.
If is simultaneously present a request of cooling (temp>SET_T+dbt) and dehumidifying (RH >
dbH): the cooling action has the priority over the dehumidifying action: only the compressor
relay is energised till the SET_T is reached at this point also the de-humidifier is enabled.
5.
FA NS
The fan control mode is selected by means of the “
FnC
” parameter:
FnC=C-n
fans will switch ON and OFF with the compressor and
not run
during defrost
:
;
FnC= O-n
fans will run continuously, but not during defrost
FnC=C-y
fans will switch ON and OFF with the compressor and
run
during defrost;
FnC=O-y
fans will run continuously also during defrost
6.
EXTRACTOR FAN
6.1
EXTRACTOR FAN CYCLES
The second relay (XH360L terminals 9-10-11, XH360V terminals 6-7) is configured as extractor
fan, oA2= ESt, then it is possible to make extraction cycles, both manually and automatically.
Extraction cycle can be activated both manually by pushing the UP key for 3s, and automatically by the
internal time
rFi.
Cycle duration is set by the
rFd
parameter. The cycle can be stopped also by key.
If
rFI
= 0 only manual cycle can be activated.
If
rFd
= 0 the cycle is stopped only by pushing the key.
7.
MATURING CYCLE WITH DRIPPING, RUNNING AND STOPPING PHASE.
Dripping
Running
Stopping
Running
Stopping
The diagrams displays a typical maturing cycle with the starting dripping phase.
DRIPPING PHASE
lasts for the “
dri
” time, without humidity control, temperature set is SETG
RUNNING PHASE
lasts for the
“on”
time, both temperature and humidity are controlled.
STOPPING PHASE
lasts for the
“off”
time, without any control of temperature and humidity.
The end of the stopping phase is signalled by the internal buzzer and by the “End” message on the
display.
After
the
STOPPING PHASE
the behaviour of the controller depends on the parameter
trc,
according
to the following settings:
trc
=
co
controller maintains the set points of the running phase
trc
=
in
controller stop the regulation at all.
trc
=
cL
controller performs the running and stopping phase till is stopped manually.
trc
=
cLE
as (
trc
=
cL
) plus at the end of each cycle the
End
label is displayed and the buzzer
is switched on.
