dixell WING XW60L Installing And Operating Instructions
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To see the max. stored temperature; in programming mode it browses the parameter codes or
increases the displayed value. By holding it pressed for 3s the fast freezing cycle is started.
To see the min stored temperature; in programming mode it browses the parameter codes or
decreases the displayed value.
By holding it pressed for 3s the defrost is started.
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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.
1.2
• 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
• 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
• 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
• In case of applications in industrial environments, the use of mains filters (our mod. FT1) in parallel with
SAFETY PRECAUTIONS
temperature changes with high atmospheric humidity to prevent formation of condensation
address) with a detailed description of the fault.
other, without crossing or intertwining.
inductive loads could be useful.
2. GENERAL DESCRIPTION
XW260L, 38x185
Model
low temperature refrigerating units. It is provided with four relay outputs to control compressor, defrost - which
can be either electrical or hot gas - the evaporator fans and the lights.
It is also provided with three NTC probe inputs, one for temperature control, one to control the defrost end
temperature of the evaporator and the third, optional, for the display. There are two digital inputs (free contact)
for the door switch and configurable by parameter.
The standard TTL output allows the user to connect, by means of a TTL/RS485 external module, a
RTU
compatible monitoring system and to programme the parameter list with the
An optional output for remote display
mm format, is microprocessor based controller suitable for applications on medium or
ModBUS-
“XW-REP”
is available.
“Hot Key”.
3. CONTROLLING LOADS
3.1 THE COMPRESSOR
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 is started and then turned off when the temperature reaches the set point value again.
In case of fault in the thermostat probe the start and stop of the compressor are timed through parameters
COn
COF
“
” and “
”.
3.2 FAST FREEZING
When defrost is not in progress, it can be activated the keypad by holding the
seconds. The compressor operates in continuous mode for the time set through the “CCt” parameter. The cycle
can be terminated before the end of the set time using the same activation key,
3.3 DEFROST
Three defrost modes are available through the “tdF” parameter: defrost with electrical heater, hot gas or
thermostatic defrost. 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 and the evaporator temperature is bigger than “SdF” parameter).
At the end of defrost the drip time is controlled through the “Fdt” parameter.
3.4 CONTROL OF EVAPORATOR FANS
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=C-y fans will run continuously, but not during defrost
After defrost, there is a timed fan delay allowing for drip time, set by means of the “Fnd” parameter.
FnC=O-n fans will switch ON and OFF with the compressor and run during defrost;
FnC=O-y fans will run continuously also during defrost
An additional parameter “FSt” provides the setting of temperature, detected by the evaporator probe, above
which the fans are always OFF. This can be used to make sure circulation of air only if his temperature is lower
than set in “FSt”.
XX key pressed for about 3
XX for about 3 seconds.
4. KEYBOARD
Switch ON and OFF the cold room light.
Switch ON and OFF the instrument.
KEY COMBINATIONS
+
+
+
4.1 USE OF LEDS
Each LED function is described in the following table.
LED MODE Function
ON The compressor is running
FLASHING
ON The fan is running
FLASHING
ON The defrost is enabled
FLASHING Drip time in progress
ON The Fast Freezing cycle is enabled
ON - ALARM signal
Function of the LEDs placed on the left top side of buttons:
BUTTON MODE FUNCTION
SET FLASHING The Set point is displayed and it can be modified
SET FAST FLASHING The Energy Saving is enabled
DEFROST ON The Manual Defrost is activated
LIGHT ON The Light is ON
ON/OFF ON The instrument is OFF
4.2 HOW TO SEE THE MIN TEMPERATURE
1.
2.
3.
4.3 HOW TO SEE THE MAX TEMPERATURE
1.
2.
3.
4.4 HOW TO RESET THE MAX AND MIN TEMPERATURE RECORDED
To reset the stored temperature, when max or min temperature is displayed :
1. Press SET key until “rST” label starts blinking.
N.B. After the installation RESET the temperature stored .
4.5 HOW TO SEE AND MODIFY THE SET POINT
4.6 TO START A MANUAL DEFROST
1. Push and immediately release the
2. The SET LED start blinking;
3. To change the Set value push the
4. To memorise the new set point value push the SET key again or wait 10s.
1. Push the DEF key for more than 2 seconds and a manual defrost will start.
To lock and unlock the keyboard.
To enter the programming mode.
To exit the programming mode.
- Programming Phase (flashing with LED
- Anti-short cycle delay enabled
Programming Phase (flashing with LED
- In “Pr2” indicates that the parameter is also present in “Pr1”
Press and release the
The “Lo” message will be displayed followed by the minimum temperature recorded.
By pressing the
Press and release the
The “Hi” message will be displayed followed by the maximum temperature recorded.
By pressing the
WW key.
WW key or waiting for 5s the normal display will be restored.
XX key.
XX key or waiting for 5s the normal display will be restored.
SET
key: the display will show the Set point value;
XXor
WW arrows within 10s.
)
)
To display and modify target set point; in programming mode it selects a parameter or confirm an
operation.
By holding it pressed for 3s when max or min temperature is displayed it will be erased.
1592009020 XW260 GB_1.doc
4.7 TO ENTER IN PARAMETERS LIST “PR1”
To enter the parameter list “Pr1” (user accessible parameters) operate as follows:
1. Enter the Programming mode by pressing the Set and DOWN key for few
seconds ( and
2. The instrument will show the first parameter present in “Pr1”
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start blinking).
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4.8 TO ENTER IN PARAMETERS LIST “PR2”
To access parameters in “
1. Enter the “Pr1” level.
2. Select “Pr2” parameter and press the “
3. The “PAS” flashing message is displayed, shortly followed by “0 - -” with a flashing zero.
4. Use
XX or
security code is “321“.
5. If the security code is correct the access to “Pr2” is enabled by pressing “
Another possibility is the following: after switching ON the instrument the user can push Set and DOWN keys
within 30 seconds.
NOTE
: each parameter in “Pr2” can be removed or put into “Pr1” (user level) by pressing
parameter is present in “Pr1” LED
Pr2
”:
SET
” key.
WW to input the security code in the flashing digit; confirm the figure by pressing “
SET
” on the last digit.
“SET”
is on.
+
SET
”. The
WW. When a
4.9 HOW TO CHANGE THE PARAMETER VALUE
1. Enter the Programming mode.
2. Select the required parameter with
3. Press the “
4. Use
5. Press “
To exit
NOTE
SET
” key to display its value (
XX or
WW to change its value.
SET
” to store the new value and move to the following parameter.
SET + UP
: Press
: the new programming is stored even when the procedure is exited by waiting the time-out.
or wait 15s without pressing a key.
XX or
WW.
and LED starts blinking).
4.10 HOW TO LOCK THE KEYBOARD
Keep the
XX and
1.
The “POF” message will be displayed and the keyboard is locked. At this point it is only
2.
possible the viewing of the set point or the MAX o Min temperature stored and to switch
ON and OFF the light, the auxiliary output and the instrument.
WW keys pressed together for more than 3 s the
XX and
WW keys.
TO UNLOCK THE KEYBOARD
Keep the
XX and
WW keys pressed together for more than 3s.
4.11 ON/OFF FUNCTION
By pushing the
switched ON.
During the OFF status, all the relays are switched OFF and the regulations are stopped; if a
monitoring system is connected, it does not record the instrument data and alarms.
N.B. During the OFF status the Light button is active.
ON/OFF
key, the instrument shows “OFF” for 5 sec. and the ON/OFF LED is
4.12 TO SEE THE PROBE VALUES
1.
2.
3.
4.
5.
Enter in “
Select “
Press the “
Use
Press “
” level.
Prd
” parameter with
SET
” key to display “
XXand
WW keys to display the other probe values.
SET
” to move to the following parameter.
XX or
WW.
Pb1”
label alternate with Pb1 value.
Pr2
5. PARAMETER LIST
REGULATION
Hy Differential:
Cut IN is Set Point Plus Differential (Hy). Compressor Cut OUT is when the temperature reaches the set
point.
LS Minimum set point limit:
point.
US Maximum set point limit:
OdS Outputs activation delay at start up:
instrument and inhibits any output activation for the period of time set in the parameter. (Light can work)
AC Anti-short cycle delay:
CCt Thermostat override:
for instance, when the room is filled with new products.
Con Compressor ON time with faulty probe:
of faulty thermostat probe. With COn=0 compressor is always OFF.
COF Compressor OF F time with faulty probe:
faulty thermostat probe. With COF=0 compressor is always active.
DISPLAY
CF Temperature measurement unit:
changed the SET point and the values of some parameters have to be modified.
rES Resolution (for °C)
de
in
Lod Local display :
P1
P2
P3
1r2
Red Remote display :
P1
P2
P3
1r2
DEFROST
tdF Defrost type:
rE
rT
the evaporator temperature and “dtE” value.
in
(0,1÷25,5° C; 1÷45° F): Intervention differential for set point, always positive. Compressor
SET; -58°F÷ SET) Sets the minimum acceptable value for the set
÷
(-50,0°C
110°C; SET÷230°F) Set the maximum acceptable value for set point.
÷
(SET
(0÷255 min) This function is enabled at the initial start up of the
(0÷30 min) interval between the compressor stop and the following restart.
(0min ÷23h 50min) allows to set the length of the continuous cycle. Can be used,
(0÷255 min) time during which the compressor is active in case
(0÷255 min) time during which the compressor is off in case of
°C = Celsius; °F = Fahrenheit. When the measurement unit is
= 0,1°C
= 1 °C
= Thermostat probe
= Evaporator probe
= auxiliary probe
= difference between P1 and P2 (P1-P2)
= Thermostat probe
= Evaporator probe
= auxiliary probe
= difference between P1 and P2 (P1-P2)
= electrical heater (Compressor OFF)
= thermostat defrost. During the defrost time “MdF”, the heater switches On and OFF depending on
= hot gas (Compressor and defrost relays ON)
: (in = 1°C; de = 0,1°C) allows decimal point display.
select which probe is displayed by the instrument:
select which probe is displayed by the remote display (XW-REP)
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EdF Defrost mode:
in
=
Sd
is running (even non consecutively) and only if the evaporator temperature is less than the value in "
(set point for SMARTFROST).
SdF Set point for SMARTFROST
counting (interval between defrosts) in SMARTFROST mode.
dtE Defrost termination temperature:
probe is present) sets the temperature measured by the evaporator probe which causes the end of
defrost.
IdF Interval between defrosts:
cycles.
MdF (Ma ximum) duration of defrost:
duration, when
dFd Display during defrost:
rt
= real temperature;
it
= temperature reading at the defrost start;
Set
dEF
dEG
dAd Defrost display time out:
restarting of the real room temperature display.
Fdt Drain down time:
restoring of the control’s normal operation. This time allows the evaporator to eliminate water drops that
might have formed due to defrost.
dPO First defrost after start-up:
y
= Immediately;
n
= after the IdF time
dAF Defrost delay after fast freezing:
delayed for this time.
FANS
FnC Fan operating mode:
C-n
C-y
O-n
O-y
Fnd Fan delay after defrost:
start.
FSt Fan stop temperature:
above which the fan is always OFF.
ALARMS
ALC Temperature alarm configuration
rE
= High and Low alarms related to Set Point
Ab
ALU High temperature alarm setting:
ALC= rE, 0
ALC= Ab, ALL
when this temperature is reached and after the ALd delay time the HA alarm is enabled.
ALL Low temperature alarm setting:
ALC = rE , 0
ALC = Ab , - 50°C or -58°F
when this temperature is reached and after the ALd delay time, the LA alarm is enabled,.
AFH Temperature alarm and f an diffe rentia l:
alarm set point and fan regulation set point, always positive.
ALd Temperature alarm delay:
the corresponding alarm signalling.
dAO Delay of temperature alarm at start-up:
temperature alarm condition after the instrument power on and the alarm signalling.
EdA Alarm delay at the end of defrost:
alarm condition at the end of defrost and the alarm signalling.
dot Delay of t e mpera ture a larm af te r c losing t he door :
alarm condition after closing the door.
doA Open door alarm delay:
alarm signalling: the flashing message “dA” is displayed.
nPS Pressure switch number:
before signalling the alarm event (I2F= PAL).
PROBE INPUTS
Ot Thermostat probe calibration:
thermostat probe.
OE Evaporator probe calibration:
evaporator probe.
O3 Auxiliary probe calibration:
evaporator probe.
P2P Evaporator probe presence:
n
= not present: the defrost stops only by time; y= present: the defrost stops by temperature and time.
P3P Auxiliary probe presence: n
HES Temperature increase during the Energy Saving cycle :
increasing value of the set point during the Energy Saving cycle.
DIGITAL INPUTS
odc Compressor and fan status when open door:
no
Fan
CPr
F_C
I1P Door switch input polarity:
CL
OP
I2P Configurable digital input polarity:
CL
OP
interval mode
Smartfrost mode
=
= set point;
= “dEF” label;
= “dEG” label;
= running with the compressor, OFF during the defrost;
= running with the compressor, ON during the defrost;
= continuous mode, OFF during the defrost;
= continuous mode, ON during the defrost;
= High and low alarms related to the absolute temperature.
= normal;
= Fan OFF;
= Compressor OFF;
= Compressor and fan OFF.
: the digital input is activated by closing the contact;
: the digital input is activated by opening the contact.
: the digital input is activated by closing the contact;
: the digital input is activated by opening the contact
. The defrost starts when the time “
. The time IdF (interval between defrosts) is increased only when the compressor
30 °C/ -22÷86 °F) evaporator temperature which allows the IdF
÷
: (-30
(-50,0÷110,0° C; -58÷230°F) (Enabled only when the evaporator
(1÷120h) Determines the time interval between the beginning of two defrost
P2P = y
(0÷60 min.) time interval between reaching defrost termination temperature and the
÷
50°C or 90°F
110°C or 230°F
÷
50 °C or 90°F
÷
(0÷255 min) When
, defrost end based on temperature, it sets the maximum length for defrost.
255 min) Sets the maximum time between the end of defrost and the
÷
(0
(0min÷23h 50min) after a Fast Freezing cycle, the first defrost will be
(0÷255 min) The time interval between the defrost end and evaporator fans
(-50÷110° C; -58÷ 230°F) setting of temperature, detected by evaporator probe,
ALU
÷
(0÷255 min) time interval between the detection of an alarm condition and
(0min÷23h 50min) time interval between the detection of the
255 min) Time interval between the detection of the temperature
÷
(0
(0÷255 min) delay between the detection of the open door condition and its
15) Number of activation of the pressure switch, during the “
÷
(0
÷
(-12.0
÷
(-12.0
12.0°C/ -21÷21°F) allows to adjust possible offsets of the
÷
(-12.0
= not present; y= present.
Idf
” is expired.
P2P = n
(0,1÷25,5° C; 1÷45°F) Intervention differential for temperature
255 min) Time delay to signal the temperature
÷
(0
12.0°C/ -21÷21°F) allows to adjust possible offset of the
12.0°C/ -21÷21°F) allows to adjust possible offsets of the
, no evaporator probe, it sets the defrost
30,0°C / -22÷86° F) sets the
÷
(-30,0°C
did
SdF
” interval,
”
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