Emerson Dixell Wing XW570L Installing And Operating Instructions

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
Each model in the XW500 series is fitted with a Real Time Clock which allows programming of up to eight daily
defrost cycles, divided into holidays and workdays. A "Day and Night" function with two different set points is
fitted for energy saving.
Models XW570L, 38x185 mm format, is microprocessor based controller suitable for applications on medium or
low temperature refrigerating units. It is provided with six relay outputs to control compressor, defrost - which
can be either electrical or hot gas - the evaporator fans, the lights, the alarm and an auxiliary output. 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 ModBUS-
RTU compatible monitoring system and to programme the parameter list with the "Hot Key".
An output for remote display XW-REP, a 4÷20 mA output to control evaporator or condenser fans and the direct
serial output RS485 are available as options.
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" and "COF".
3.2 FAST FREEZING
When defrost is not in progress, it can be activated the keypad by holding the o key pressed for about 3
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, o for about 3 seconds.
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=rtc) the defrost is made
in real time depending on the hours set in the parameters Ld1..Ld8 on workdays and in Sd1...Sd8 in holidays;
(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:
C-n fans will switch ON and OFF with the compressor and not run during defrost;
C-y fans will switch ON and OFF with the compressor, also during defrost
After defrost, there is a timed fan delay allowing for drip time, set by means of the "Fnd" parameter.
O-n fans will run continuously and not run during defrost;
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".
3.5 AUXILIARY OUTPUT
The auxiliary output is switch ON and OFF by means of the corresponding button on the keyboard.
1592009130 XW570L GB r1.0 03.08.2015
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XW570L
4. KEYBOARD
To display and modify target set point; in programming mode it selects a parameter or confirms an
operation.
By holding it pressed for 3s when max or min temperature is displayed, it will be erased.
By pressing it when the current time is displayed, it allows the User to re-set the current time and
three holidays.
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 current time is displayed and it permits the User to enter Energy
saving, Defrost and Clock parameter menu.
By holding it pressed for 3s the defrost is started.
By pressing it when the current time is displayed, it allows the User to set defrost times.
Switch ON and OFF the cold room light.
By holding it pressed for 3s Energy Saving function is started or stopped.
By holding it pressed for 6s, the Holiday function is started or stopped.
By pressing it when the current time is displayed, it allows the User to set Energy Saving times.
Switch ON and OFF the auxiliary output.
Switch ON and OFF the instrument.
KEY COMBINATIONS
+
To lock and unlock the keyboard.
+
To enter the programming mode.
+
To exit the programming mode.
4.1 USE OF LEDS
Each LED function is described in the following table.
LED MODE Function
ON The compressor is running
FLASHING
- Programming Phase (flashing with LED
- Anti-short cycle delay enabled
ON The fan is running
FLASHING
Programming Phase (flashing with LED
ON The defrost is enabled
FLASHING Drip time in progress
ON The Fast Freezing cycle is enabled
ON - ALARM signal
- In "Pr2" indicates that the parameter is also present in "Pr1"
Function of the LEDs placed on the left top side of buttons:
BUTTON MODE
DOWN/CLOCK ON
DOWN/CLOCK FLASHING
DOWN/CLOCK SLOW FLASHING
SET FLASHING
DEFROST ON
DEFROST FLASHING
ENERGY SAVING ON
ENERGY SAVING FLASHING
LIGHT ON
AUX ON
ON/OFF ON
4.2 HOW TO SEE THE MIN TEMPERATURE
1.
Press and release the n key.
2.
The "Lo" message will be displayed followed by the minimum temperature recorded.
3.
By pressing the n key or waiting for 5s the normal display will be restored.
XW570L
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FUNCTION
Time is displayed
Programming time is enabled
Holiday function is ON
The Set point is displayed and it can be modified
The Manual Defrost is activated
Defrost times programming is enabled
The Energy Saving is enabled
Energy saving times programming is enabled
The Light is ON
The Auxiliary output is ON
The instrument is OFF
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