1592034030 XR30CHC EN r1.0 2019.01.31
XR30CHC
1/6
DIGITAL CONTROLLER WITH
BLUETOOTH CONNECTIVITY
XR30CHC
82 rel. 1.0.1
1
GENERAL WARNINGS ................................................................................................................................... 1
2
GENERAL DESCRIPTION .............................................................................................................................. 1
3
REGULATION .................................................................................................................................................. 1
4
ENERGY SAVING ALGORITHM .................................................................................................................... 1
5
PULL DOWN FUNCTION ................................................................................................................................ 1
6
CONDENSER FAN .......................................................................................................................................... 1
7
DEFROST ........................................................................................................................................................ 1
8
DIGITAL OUTPUT CONFIGURATION ........................................................................................................... 1
9
FRONT PANEL COMMANDS ......................................................................................................................... 2
10
PARAMETER MENU ....................................................................................................................................... 2
11
PARAMETERS ................................................................................................................................................ 2
12
DIGITAL INPUTS ............................................................................................................................................. 4
13
INSTALLATION AND MOUNTING .................................................................................................................. 4
14
OPTIONAL FEATURES .................................................................................................................................. 4
15
ELECTRICAL CONNECTIONS ....................................................................................................................... 4
16
USE THE HOT-KEY ........................................................................................................................................ 5
17
INTERNAL MEMORY ...................................................................................................................................... 5
18
ALARM SIGNALLING ...................................................................................................................................... 5
19
TECHNICAL DATA .......................................................................................................................................... 5
20
WIRINGS .......................................................................................................................................................... 5
21
BLUETOOTH COMMUNICATION .................................................................................................................. 6
1
GENERAL WARNINGS
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
XR30CHC
,
32x74x60mm format
, is a microprocessor-based controller suitable for applications
on medium or low temperature ventilated refrigeration units. It has 2 relay outputs to control
compressor and fans, light or defrost. The device is also provided with up to 3 NTC, PTC or PT1000
probe inputs to control temperature, to manage the condenser and for visualization purpose. There are
also two configurable digital inputs. By using the
HOT-KEY
it is possible to program the instrument in a
quick and easy way.
The controller has Bluetooth 4.2 connectivity.
3
REGULATION
The regulation is performed according to
the temperature measured by the
thermostat probe with a positive
differential from the set point: if the
temperature increases and reaches set
point plus differential, the compressor will
start. The compressor will stop when the
temperature reaches the set point value
again.
In case of fault because of the thermostat probe, the start and stop of the compressor are timed
through parameters
CoF
and
Con
.
4
ENERGY SAVING ALGORITHM
4.1
DESCRIPTION
The device permits to set different temperature to be used during normal and reduced power use. The
standard SET-POINT (
SET
) is used to maintain the temperature at a certain value when the energy
saving status (ES) is not active. On the other side, when the ES status is active a different SET-POINT
(
SET_ES
), higher than the standard one, will be used. The parameter
HES
will have to be set to
change the regulation temperature according to the following formula:
SET_ES = SET + HES
There are also two different differential values for
SET
and
SET_ES
, which are used for compressor
cut-in and cut-out: when ES status is active the
HYE
parameter will be used instead of the
HY
parameter.
4.2
BASIC ENERGY SAVING ALGORITHM
The energy saving status will be always saved in the internal memory to resume previous operation if
a power failure occurs. It needs the presence of a door switch to work (for example:
i1F=dor
).
4.2.1
PARAMETER INVOLVED
•
i1F or i2F:
set as door input to monitor the appliance usage
•
StE:
interval to change from normal to energy saving mode
•
EtS:
interval to change from energy saving to normal mode
•
HES:
differential for SETPOINT when energy saving mode active
•
HYE:
differential for regulation when energy saving mode is active
•
dS:
interval for door opening detection
•
LdE:
light output controlled (OFF when energy saving mode is active)
FROM
TO
CHANGED BY
Normal
mode
Energy
Saving
- Pushing the
DOWN
button for 3 sec (if enabled).
- Door continuously closed for the
StE
time.
Energy
Saving
Normal
mode
- Pushing the
DOWN
button for 3 sec (if enabled).
- Controller in ES mode for the
EtS
time.
- If the controller is in ES mode, it returns in Standard mode
(normal set-point) after opening the door more than
dS
time.
NOTE:
the cycling mode (ES - Normal mode - ES - etc.) works if
i1F=dor
and
EtS
and
StE
are
different from zero. If
EtS=0
or
StE=0,
the controller will not change the operating mode,
and it will be
possible to change from the normal mode to the energy saving mode by using ES button or by setting
i1F=ES
. See the below diagrams where the status changing is described:
5
PULL DOWN FUNCTION
The Pull Down is automatically activated:
•
After any defrost
•
After power-on if
T>SET+CCS
•
When the regulation probe temperature
T
is:
•
T>SET+HY+oHt
value in normal mode
•
T>SET+HES+HYE+oHE
value in energy saving mode
In this case, a different set-point value (
SET+CCS
) will be enabled. As soon as the room temperature reaches
the
SET+CCS
value, the compressor will be stopped and the normal regulation will restart.
NOTE:
Pull Down
function is disabled when
CCS=0
or
CCt=0
.
The
CCt
parameter sets the maximum activation time for any pull down. When
CCt
expires, the Pull Down will
be immediately stopped and the standard SET-POINT will be restored.
6
CONDENSER FAN
6.1
GENERAL DESCRIPTION
The condenser fan is can be managed by dedicated control. To enable it, a condenser probe must be
selected by using par.
FAC
. Here follows the description of all the related parameters:
•
FAC
: to select the condenser fan probe
•
St2
: to select the condenser fan deactivation setpoint
•
HY2
: differential for condenser fan activation
•
FCC
parameter it can be selected the condenser fan working mode:
o
FCC=C-n:
condenser fan will switch ON and OFF with the compressor and
will
not run during defrost
o
FCC =o-n:
condenser fan will run even if the compressor is off, and will not run
during defrost
o
FCC =C-Y:
condenser fan will switch ON and OFF with the compressor and will
run during defrost
o
FCC =o-Y:
condenser fan will run continuously, also during defrost.
7
DEFROST
7.1
DEFROST MODE
Any defrost operation can be controlled in the following way:
•
EdF=rtC
: by using an internal real-time clock (only for models equipped with RTC)
•
EdF=in
: timed defrost, in this case a new defrost will start as soon as the
idF
timer expires
7.2
TIMED MODE
Defrost control is timed only. A couple of parameters is used to control the interval between defrost
cycles (
idF
) and its maximum length (
MdF
). During the defrost cycle is possible to select some
different display indications by using the
dFd
parameter.
8
DIGITAL OUTPUT CONFIGURATION
Depending on the model, one or more digital outputs (relays) can be configurated with one of the following
functionalities.
8.1
ON/OFF OUTPUT (OAX = ONF)
When
oAx=onF
, the output is activated when the controller is turned on and de-activated when the
controller is turned off.
8.2
DEAD BAND REGULATION
With
oAx=db
the output can be used to control, for example, a heater element. It is used to implement
a dead band regulation. If so:
•
oAx=db
cut in is
SET-HY
•
oA1=db
cut out is
SET
8.3
ALARM OUTPUT
With
oAx=ALr
the output operates as alarm output. It is activated every time an alarm happens. Its
status depends on the
tbA
parameter: if
tbA=Y
, the output is deactivated by pressing any key.
If
tbA=n
, the alarm output stays on until the alarm condition recovers.