Dixell Cx 660 Manual

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Model Universal-XR is a 71x29 mm format microprocessor based controller, suitable for applications on high, medium or
low temperature refrigeration units. It is provided with three relay outputs to control compressor, defrost - which can be both
electrical or hot gas - and evaporator fans. It can work with PTC or NTC probes. Where defrost is being terminated by time,
it can operate with just one thermostat probe. Where defrost is being terminated by temperature, it has an input for an
The Universal-XR is equipped with a flashing visual alarm and buzzer.
Each instrument is fully configurable through special parameters that can be easily programmed through the keypad.
2. QUICK START UP PROCEDURE – Up and running in 5 easy steps
This Quick Start Up section is designed to get you up and running with the minimum of fuss. Just follow these 5 simple steps.
STEP 2
STEP 3
STEP 5
Notes:
1. All probes must be of the same type, either PTC or NTC.
2. Probes must be at between --58 to 140°F for auto recognition to work;
3. If 1 minute expires before you have completed quick set up, either cycle the power OFF then ON to start the set up again or
enter Pr2 as per the instructions and adjust your parameter settings manually (see Section 9).
Installation and Operating Instructions
Install the new Universal-XR per the installation instructions included with the controller.
THEN WITHIN 1 MINUTE COMPLETE STEPS 3, 4 AND 5.
Press the 'SET' and 'DOWN' key for 3 seconds and the controller will automatically recognise and
adjust itself to the type of probes connected. (The display briefly shows tPd followed by ntC or PtC).
Press the 'AUX/tC' key for 3 seconds and the setting of parameter tC is displayed. Use the UP or
DOWN keys to adjust to required setting then confirm by pressing SET (see table 1 below).
Press SET for 3 seconds until the °C or °F icon starts to flash, then adjust the SET POINT using the UP
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Summary of Contents for dixell UNIVERSAL XR60CX

  • Page 1 Installation and Operating Instructions UNIVERSAL–XR60CX 1. GENERAL DESCRIPTION Model Universal-XR is a 71x29 mm format microprocessor based controller, suitable for applications on high, medium or low temperature refrigeration units. It is provided with three relay outputs to control compressor, defrost - which can be both electrical or hot gas - and evaporator fans.
  • Page 2 Installation and Operating Instructions Table 1: parameter “tC” settings Parameter Required Type of Control Models Replaced probes On / Off thermostat – Heating XR110C, XR01CX, XR10C, XR10CX Off cycle defrost (timed) XR120C, XR02CX, XR20C, XR20CX Off Cycle defrost time initiated / temperature terminated XR120C, XR02CX, XR20C-E Off Cycle defrost time initiated / temperature terminated, Alarm XR130C, XR03CX, XR30CX..
  • Page 3 Installation and Operating Instructions 4. PARAMETER TABLE and factory default settings IMPORTANT: Always set parameter “tC” first. As you move “tC” between settings 1 to 7, all non-relevant parameters will be masked. After setting “tC”, it will be possible to modify all the other relevant parameters. Once the program is completed you may want to save the parameter map to a Hot Key.
  • Page 4 Installation and Operating Instructions Description Label Adjustment Range Maximum duration of defrost 0 to 255 min (second evaporator) Defrost termination temperature (second 8.0°C 8.0°C -55 to 50C; evaporator) 46°F 46°F -67 to 122°F Rt (0) = Real temp. it (1) = Temp. at defrost start Display during defrost sEt (2) = Set Point dEF (3) = “DEF”..
  • Page 5 Installation and Operating Instructions Description Label Adjustment Range No (0) = No change FAn (1) = Fan off Door open – compressor / fan status CPr (2) = Compressor off F_C (3) = Compressor & Fan off Alr (0) = Alarm; db (1) = Dead Band;..
  • Page 6 Installation and Operating Instructions 5. PARAMETERS, FUNCTIONS IN DETAIL Table 4: controller parameters in detail Display visualisation Description Type of Controller: tells the Universal-XR which type of controller it will be operating as. 1 = on/off Heating thermostat – 1 relay & 1 probe; 2 = Combined thermostat with off cycle defrost timer –..
  • Page 7 Installation and Operating Instructions Delay start of defrost: (0 to 255min) delay between reaching the defrost interval time (as defined by parameter idF) and when a defrost cycle actually starts. Used to stagger defrosts between multiple systems. Probe Selection for first defrost cycle (Maximum) duration of defrost: (0 to 255min) time duration of a defrost cycle when only one probe is in use, or defrost time out override when second (evaporator) probe is in use.
  • Page 8 Installation and Operating Instructions Third probe presence (probe named Evap.2 on the label): 0= n = not present, the third input (the one signed with label “D.I. / Pb3”) Input operates as digital input; 1= Y = present, the third input (the one signed with label “D.I. / Pb3”) Input operates as third probe. Third probe calibration: (-12.0 to 12.0°C or -21 to 21°F) adjustment for third probe offset.
  • Page 9 Installation and Operating Instructions Regulation restart with door open alarm: 0= n = no; 1= Y = yes, regulation will restart after “door open” alarms. Probe selection for Condenser Alarm : 0= nP=No Probe selected 1= P1=Probe 1 2= P2=Probe 2 3= P3=Probe3 *normally P3 would be used* Low temperature alarm of condenser: (-55 to 150°C or -67 to 302°F) when this temperature is reached, the HA2 alarm will be raised (after the Ad2 delay time has expired).
  • Page 10 Installation and Operating Instructions 6. BUTTONS AND THEIR FUNCTIONS 6.1 SINGLE BUTTON FUNCTIONS Table 5: single button functions BUTTON FUNCTION Type Controller menu: keep this button pressed for at least 3 sec within 1 min after power on to enter the “Type Controller Menu” (tC). AUX output control: Switches the AUX relay output (if enabled as such).
  • Page 11 Installation and Operating Instructions NOTE: the “Err” message is displayed for failed programming. In this case push o key again if you want to restart the upload or remove the “Hot key” to abort the operation. 8.2 HOW TO PROGRAM AN INSTRUMENT USING A HOT KEY (DOWNLOAD) Turn OFF the instrument.
  • Page 12 14. COMMUNICATIONS WITH XWEB or OTHER MONITORING SYSTEMS Using the XJ485CX-00000 it is possible to network the Universal XR60CX to the XWEB monitoring systems, or a third-party system. The controller has TTL communications that can be converted with the XJ485CX key. The key is connected to the control via the HOT KEY port, with a small 5 wire cable.
  • Page 13 15.2 ALARM “EE” The Dixell Universal-XR is provided with an internal watchdog verifying data and memory integrity. Alarm “EE” will flash after detecting a failure in data or in the internal memory. In this case, the alarm output is enabled.
  • Page 14 Installation and Operating Instructions 21. TROUBLESHOOTING Problem Possible reason Notes • Check cooling system. • Display flashing HA Temperature too high. • Check alarm settings. • Check cooling system. • Display flashing LA Temperature too low. • Check alarm settings. •..
  • Page 15 Installation and Operating Instructions Differential Minimum set point value Maximum set point value Anti-short cycle delay Second compressor start delay Probe selection for temperature alarms Temperature alarm configuration High temperature alarm Low temperature alarm Differential for temperature alarm recovery Temperature alarm delay Delay before activating a temperature alarm at start up Delay before activating outputs at start up..
  • Page 16 Installation and Operating Instructions Thermostat probe calibration Evaporator probe presence Evaporator probe calibration Third probe presence Third probe calibration Display resolution Temperature measurement unit Display visualization Delay before updating the displayed temperature 0.00 Kind of action: heating or cooling Compressor ON time with faulty probe Compressor OFF time with faulty probe Alarm output disabling by pushing any button Digital input 2 configuration..
  • Page 17 Installation and Operating Instructions 905 Waverly Ave. Holtsville, NY 11742 (631)207-1200 f (631)207-0900 www.weissinstruments.com sales@weissinstruments.com Universal-XR 17/17 UXR01212015_REV1.4mm..
Most useful pages:More
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
•
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
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.
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