Dixell Cx 660 Manual

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Dixell technology is leading the way in electronic regulation and control in the fields of refrigeration, air conditioning and heating, and retail. Dedication to technological innovation and constant focus on efficiency have driven the development of solutions designed to maximize energy savings. Dixell parametric controllers, fan speed. View and Download Dixell XR06CX operating manual online. DIGITAL CONTROLLER WITH DEFROST AND FANS MANAGEMENT. XR06CX Network Router pdf manual download. This manual is part of the product and should be kept near the instrument for. In case of failure or faulty operation send the instrument back to the distributor or to “Dixell S.p.A.”. The CX660 keyboard shall be mounted on vertical panel, in a.

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INSTALLATION AND MOUNTINGCONNECTIONSHOW TO USE THE HOT KEYALARM SIGNALLINGTECHNICAL DATADEFAULT SETTING VALUESPARAMETERS
DIGITAL CONTROLLER
1. CONTENTS
Contents __________________________________________________________________________ 1
General warnings ___________________________________________________________________ 1
General description __________________________________________________________________ 1
Regulation_________________________________________________________________________ 1
Defrost ___________________________________________________________________________ 1
Front panel commands _______________________________________________________________ 1

Parameters ________________________________________________________________________ 1

8.
Installation and mounting _____________________________________________________________ 2
Electrical connections ________________________________________________________________ 2
10. How to use the hot key _______________________________________________________________ 2
11. Alarm signalling_____________________________________________________________________ 2
12. Technical data______________________________________________________________________ 2
13. Connections _______________________________________________________________________ 2
14. Default setting values ________________________________________________________________ 2
PLEASE READ BEFORE USING THIS MANUAL
This manual is part of the product and should be kept near the instrument for easy and quick
•
Manual
The instrument shall not be used for purposes different from those described hereunder. It cannot be
•
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.p.A.' (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
•
In case of applications in industrial environments, the use of mains filters (our mod. FT1) in parallel with
3. GENERAL DESCRIPTION
Model XR02CX, format 32 x 74 x 50 mm, is a digital thermostat with off cycle defrost designed for
refrigeration applications at normal temperature. It provides a relay output to drive the compressor. It is also
provided with 2 NTC probe input. The instrument is fully configurable through special parameters that can be
easily programmed through the keyboard or the by HOTKEY.
THE REGULATION OUTPUT
the
measured
the
from the set point: if the temperature
differential the compressor is started and
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
5. DEFROST
Defrost is performed through a simple stop of the compressor. Parameter 'id' controls the interval
between defrost cycles, while its length is controlled by parameter 'Md'.
KEYS COMBINATION
To lock or unlock the keyboard
To enter in programming mode
To return to room temperature display
MODO
On
Flashing
XR02CX US.doc
To display target set point, in
parameter
confirm
operation
In programming mode it browses
the displayed value
the

Cocina Ariston Cx 660

codes
AUX
XR02CX
Defrost in progress
Dripping in progress
Measurement unit
Programming mode
Measurement unit
Programming mode
1.
Push and immediately release the SET key, the set point will be showed;
Push and immediately release the SET key or wait about 5s to return to normal visualisation.
1.
Push the SET key for more than 2 seconds to change the Set point value;
The value of the set point will be displayed and the '°C' or '°F' LED starts blinking;
To change the Set value push the o or n arrows within 10s.
To memorise the new set point value push the SET key again or wait 10s.
Push the DEF
key for more than 2 seconds and a manual defrost will start
To change the parameter's value operate as follows:
1. Enter the Programming mode by pressing the SET+
2. Select the required parameter. Press the 'SET' key to display its value
or
4. Press 'SET' to store the new value and move to the following parameter.
or wait 15s without pressing a key.
NOTE: the set value is stored even when the procedure is exited by waiting the time-out to expire.
The hidden menu includes all the parameters of the instrument.
1. Enter the Programming mode by pressing the SET+
2. Released the keys, then push again the SET+
displayed immediately followed from the Hy parameter.
3. Select the required parameter.
5. Use
to change its value.
6. Press 'SET' to store the new value and move to the following parameter.
or wait 15s without pressing a key.
NOTE1: if none parameter is present in L1, after 3s the 'nP' message is displayed. Keep the keys
NOTE2: the set value is stored even when the procedure is exited by waiting the time-out to expire.
HOW TO MOVE A PARAMETER FROM THE HIDDEN MENU TO THE FIRST
Each parameter present in the HIDDEN MENU can be removed or put into 'THE FIRST LEVEL' (user
. In HIDDEN MENU when a parameter is present in First Level the decimal
TO LOCK THE KEYBOARD
Keep pressed for more than 3s the
2.
The 'OF' message will be displayed and the keyboard will be locked. If a key is pressed more
TO UNLOCK THE KEYBOARD
and
REGULATION
Hy Differential: (0,1°C ÷ 25°C) Intervention differential for set point. Compressor Cut IN is SET
POINT + differential (Hy). Compressor Cut OUT is when the temperature reaches the set point.
LS Minimum SET POINT: (-55°C÷SET/-58°F÷SET): Sets the minimum value for the set point..
US Maximum SET POINT: (SET÷99°C/ SET÷99°F). Set the maximum value for set point.
First probe calibration: (-9.9÷9.9°C) allows to adjust possible offset of the first probe.
P2 Evaporator probe presence: n= not present; y= the defrost stops by temperature.
oE Second probe calibration: (-9.9÷9.9°C) allows to adjust possible offset of the second probe
od Outputs activation delay at start up: (0÷99min) This function is enabled at the initial start up of
the instrument and inhibits any output activation for the period of time set in the parameter.
AC Anti-short cycle delay: (0÷50 min) minimum interval between the compressor stop and the
Cy Compressor ON time with faulty probe: (0÷99 min) time during which the compressor is active
in case of faulty thermostat probe. With Cy=0 compressor is always OFF.
Cn Compressor OFF time with faulty probe: (0÷99 min) time during which the compressor is OFF
in case of faulty thermostat probe. With Cn=0 compressor is always active.
CF Measurement unit: (°C÷°F) °C =Celsius; °F =Fahrenheit. WARNING: When the measurement
unit is changed the SET point and the values of the parameters Hy, LS, US, oE, o1, AU, AL
rE
Resolution (only for °C):(dE ÷ in) dE= decimal between -9.9 and 9.9°C; in= integer;
Default display: (P1 ÷ P2) P1= thermostat probe; P2= evaporator probe. SP=Set point
Display delay: (0÷15 min.) when the temperature increases, the display is updated of 1 °C/1°F
DEFROST
dE Defrost termination temperature: (-50÷50°C) if ot=Y it sets the temperature measured by the
evaporator probe, which causes the end of defrost.
keys for 3s ('°C' or '°F' LED starts
keys for more than 7s. The L2 label will be
keys till the 'on' message will be displayed.
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Summary of Contents for dixell XR02CX

  • Page 1: Parameters

    L2 message is displayed. Model XR02CX, format 32 x 74 x 50 mm, is a digital thermostat with off cycle defrost designed for NOTE2: the set value is stored even when the procedure is exited by waiting the time-out to expire.

  • Page 2: Installation And Mounting

    Software release 8. INSTALLATION AND MOUNTING NOTE: Fast-on maximum current 16A Instrument XR02CX shall be mounted on vertical panel, in a 29x71 mm hole, and fixed using the special bracket supplied. 14. DEFAULT SETTING VALUES The temperature range allowed for correct operation is 0÷60 °C.
WITH STEPPER DRIVER INSIDE
-MANUAL FOR THE SW REL. 2.8-
GENERAL WARNING ...................................................................................... 1
BEFORE PROCEEDING .................................................................................. 1
GENERAL DESCRIPTION ............................................................................... 1
QUICK REFERENCE GUIDE: HOW TO RUN THE SELF ADAPTIVE
REGULATION IN 5 STEPS. ............................................................................. 1
INSTALLATION AND MOUNTING ................................................................... 1
WIRING DIAGRAM AND CONNECTIONS ...................................................... 2
BATTERY BACK UP CONNECTION ............................................................... 3
USER INTERFACE........................................................................................... 4
HOW TO PROGRAM THE PARAMETERS (PR1 AND PR2) .......................... 4
10. FAST ACCESS MENU ..................................................................................... 4
11. MENU FOR MULTIMASTER FUNCTION: SEC .............................................. 5
12. COMMISSIONING ............................................................................................ 5
KIND OF REGULATION FOR SUPERHEAT: SELF ADAPTIVE OR MANUAL
OPERATING MODE ......................................................................................... 6
14. DISPLAY MESSAGES ..................................................................................... 6
15. USE OF THE PROGRAMMING HOT-KEY ...................................................... 7
16. CONTROLLING LOADS................................................................................... 7
17. TECHNICAL DATA ........................................................................................... 8
18. DEFAULT PARAMETER MAP ......................................................................... 9
1.1
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
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.
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
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
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
Ensure that the wires for probes, loads and the power supply are separated and
far enough from each other, without crossing or intertwining.
2.1 CHECK THE SW REL. OF THE XM678D
Look at the SW rel. of XM678D printed on the label of the controller.
If the SW release is 2.8, proceed with this manual otherwise contact Dixell
3. GENERAL DESCRIPTION
The XM678D is a microprocessor based controller for multiplexed cabinets suitable for
applications on medium or low temperature. It can be inserted in a proprietary LAN with
up to 8 different sections which can operate, depending on the programming, as stand
alone controllers or following the commands coming from the other sections. The
XM678D is provided with 6 relay outputs to control the solenoid valve, defrost - which
can be either electrical or hot gas - the evaporator fans, the lights, an auxiliary output
and an alarm output and with the stepper valve driver. The device is also equipped
with six probe inputs: for temperature control, for control the defrost end temperature,
for display and the fourth can be used for application with virtual probe or for inlet/outlet
air temperature measurement. Moreover, fifth and sixth probe are used to evaluate and
control the superheat. Finally, the XM678D is equipped with the three digital inputs
The device is equipped with the HOT-KEY connector that permits to be programmed
in a simple way. The optional direct serial output RS485 (ModBUS compatible) permits
a simple XWEB interfacing. RTC is available as options. The HOT-KEY connector can
be used to connect X-REP display (Depending on the model).
Dixell
4. QUICK REFERENCE GUIDE: HOW TO RUN THE SELF
1.
After wiring the XM678D, configure the type of valve, bipolar or unipolar, via
tEP (Default tEP =0) parameters or through the manual settings. See par. 6.3 for
NOTE: for Alco EX4, EX5, EX6 tEP = 11
2.
Set the proper gas via Fty parameter, among the following
REFRIGERANT
r22
r134A
r290 – Propane
r404A
r407A
r407C
Manual
r407F
r410A
r448A
r449A
r450A
r507
r513A
r744 - Co2
3.
-
Regulation and evaporator probe are preset as NTC. If another kind of
sensors is used, set it via P1c and P2c parameters.
Superheat evaporator outlet probe is pre-set as Pt1000, if another kind
-
The PP11 (-0.5÷11bar) is pre-set as pressure probe. It operates at relative
If you're using a ratiometric transducer, set P5c = 0-5, then use parameters
NOTE: check the pressure gauge reading with the value of dPP, press the
UP arrow once to enter the Fast Access Menu. If ok, proceed; otherwise
solve the situation before proceeding acting on par. Pru, PA4 and P20.
Set the parameters for self adaptive regulation of superheat
NOTE: the parameters Pb (regulation band) and Int (integral time) are
-
Set CrE = no, this disable the continuos regulation of the temperature.
-
Set SSH, superheating setpoint: a value between 4 and 8
-
Set AMS = y to start the self adaptive regulation. Default is AMS = y
Set ATU = y to start the search of the lowest stable superheat. Default is
ATU = y. This function reduces automatically the setpoint in order to
optimize the use of the evaporator, keeping, at the same time, the
superheating regulation stable. The minimum allowed SH set point is
-
Set LSH, low superheating limit: a value between 2-4 is acceptable.
-
Set SUb, pressure filter: Default is SUb = 10. The value can be increased
up to 20 in case of too fast response of the pressure variations.
Set the parameters for the temperature regulation
Set the temperature setpoint. Default is -5°C
Set the differential HY: Default is 2°C.
If the capacity of the valve is higher than requested, it can be reduced by
the par. MNF (Default is 100). A proper setting of MnF will reduce the time
MNF value doesn't affect the band witdh
This device can operate without any user interface, but normal application is with Dixell
Figure 1a
XM678D
-50-60°C/-58÷120°F
-50-60°C/-58÷120°F
-50-60°C/-58÷120°F
-50-60°C/-58÷120°F
-45-60°C/-69÷120°F
-45-60°C/-69÷120°F
-45-60°C/-69÷120°F
The CX660 keyboard shall
in a 29x71 mm hole, and fixed
supplied as shown in fig.
allowed for correct operation
subject to strong vibrations,
dirt or humidity.
The same recommendations
circulate by the cooling holes.
1/

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Summary of Contents for Emerson XM678D

Cx 660 Flight

  • Page 1 The dirt or humidity. XM678D is provided with 6 relay outputs to control the solenoid valve, defrost - which Figure 1a Figure 1b The same recommendations can be either electrical or hot gas - the evaporator fans, the lights, an auxiliary output apply to probes.
  • Page 2 A twisted shielded cable with the the above specification is suggested. Don’t connect the shield to any ground, live it floating. 6.4 WIRING CONNECTION OF EMERSON EX3 VALVE The max distance between an XM controller and a valve must not exceed 10 m.
  • Page 3 = Err  the local transducer read a wrong value, the pressure is out of the bounds of the pressure transducer or the P5C parameter is wrong. Check all XM678D is able to drive a wide range of stepper valves, on the following table are these options and eventually change the transducer;...
  • Page 4 7.2 EMERSON ECP-024 CONNECTION The device provide 2 programming levels: Pr1 with direct access and Pr2 protected The Emerson ECP-024 rechargeable accumulator can be connected to the XM678D with a password (intended for experts). to close the stepper valve in case of power interruption.
  • Page 5 [5] Use the following parameters to setup the right valve driving, according to the valve Press for 3 seconds, the rtC or other will be BEGIN datasheet from the manufacturer. showed. The measurement unit blinks. 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...
  • Page 6 SEC menu and select LOC of the parameter CrE: on/off or continuous. See below in details.Standard temperature not working or not present entry. regulation Keyboard is unlocked Keyboard is locked 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...
  • Page 7 HOT-KEY to abort the operation. CONTROL WITH ANALOG OUTPUT (if present) 15.2 UPLOAD (FROM THE INSTRUMENT TO THE HOT-KEY) When the XM unit is ON, insert the HOT-KEY and push “UP” key 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...
  • Page 8 17. TECHNICAL DATA CX660 keyboard Housing: self extinguishing ABS Case: CX660 fascia 35x77 mm; depth 18mm Mounting: panel mounting in a 29x71 mm panel cut-out Protection: IP20 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...
  • Page 9 Set the duration of the light on time on holidays. Holidays Sixth defrost start. 0.0 to 24h00min (144) Format: hours.10min, resolution: 10min. By pressing SET you can enter electronic expansion valve ELECTRONIC VALVE submenu. 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...
  • Page 10 [LSH to 80.0°C] If superheat value exceeds MSH value, the display will show the 60.0 Maximum superheat alarm threshold. MSH message until delay time SHd will expire. [LSH to 144°F] 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...
  • Page 11 Ab(1) PrU value is used for all the pressure parameters. If [PrU = rE] all pressure parameters are in relative pressure unit, if [PrU = Ab] all pressure parameters are in absolute pressure unit. 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...
  • Page 12 [1°F to 45°F] value of temperature. n = fan follows FnC setting during defrost without temperature control Fan thermostat also during defrost n; Y y = fan follows FnC setting during defrost with FSt temperature control 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...
  • Page 13 FAn = Fan; ALr = Alarm; LiG = Light; AUS = auxiliary; Relay on terminals 17-18 configuration FAn; ALr; LiG; db = heater for neutral zone (not available with CrE = Y); AUS; db; onF; AC onF = ON/OFF; AC = anti-sweet.; E3r: Not set 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...
  • Page 14 = the set-point value is modified only in the local section; LAN Display Synchronization n; Y Y = the value displayed by the section is sent to all the other (temperature sent via LAN). sections. 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...
  • Page 15 Microprocessor firmware release. - - - Parameter table. (read only) It shows the original code of the Dixell parameter map. - - - Pr2 menu access. (read only) Access to the protected parameter list. 1592023140 XM678D GB r2.8 01.09.2017.docx XM678D...