XR Unit of Measure Change
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Specifications:
- Model: Universal-XR
- Replaces Models: XR110C, XR01CX, XR10C, XR10CX, XR120C, XR02CX,
XR20C, XR20CX, XR120C, XR02CX, XR20C-E, XR130C, XR03CX, XR30CX,
XR140C, XR04CX, XR40CX, XR160C, XR06CX, XR60CX - Required Probes: Varies based on model
- Power Supply: 12/24Vac/dc
- Revision: UXR10012015_REV1.4mm (01/25)
Product Usage Instructions:
Step 1: Installation
Install the new Universal-XR per the installation instructions
included with the controller.
Step 2: Power On
Turn on power.
Step 3: Probe Recognition
Within 1 minute of powering on, press the SET and DOWN keys for
3 seconds. The controller will automatically recognize and adjust
itself to the type of probes connected.
Step 4: Parameter Setting
Press the AUX/tC key for 3 seconds. The setting of parameter tC
is displayed. Use the UP or DOWN keys to adjust to the required
setting. Confirm by pressing SET.
Step 5: Additional Notes
All probes must be of the same type (PTC or NTC). If 1 minute
expires before completing the setup, cycle the power OFF then ON to
start setup again or manually adjust settings as per
instructions.
FAQ:
Q: How many probes are required for the Universal-XR?
A: The number of required probes varies based on the specific
model being used. Refer to the user manual or product
specifications for detailed information.
Q: Can I adjust parameters other than tC after setting it?
A: Yes, after setting parameter tC, it will be possible to
modify all the other relevant parameters. Make sure to refer to the
factory default settings table for guidance.
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JANUARY 2025 PRODUCT CATALOG
UniversalXR Unit of Measure Change Instructions
1. General Description
Model Universal-XR is a 71×29 mm format microprocessor based controller, it is available in 12/24Vac/dc, 120Vac or 230Vac, and is 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 evaporator probe(s). 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 1
Install the new Universal-XR per the installation instructions included with the controller.
STEP 2 STEP 3
Turn on power, 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).
STEP 4
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).
STEP 5
Press SET for 3 seconds until the °C or °F icon starts to flash, then adjust the SET POINT using the UP or DOWN keys, then press SET again to confirm.
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).
Table 1: parameter “tC” settings
Parameter tC
Type of Control
1
On / Off thermostat Heating
2
Off cycle defrost (timed)
3
Off Cycle defrost time initiated / temperature terminated
4
Off Cycle defrost time initiated / temperature terminated, Alarm Relay
5
Electrical / Hot Gas defrost, time initiated / temperature terminated
6
Electrical / Hot Gas defrost, time initiated / temperature terminated + evap. Fan delay and control
7
Full open map of parameters configure your own control
Models Replaced XR110C, XR01CX, XR10C, XR10CX XR120C, XR02CX, XR20C, XR20CX
XR120C, XR02CX, XR20C-E XR130C, XR03CX, XR30CX XR140C, XR04CX, XR40CX
XR160C, XR06CX, XR60CX
Your determination
Required probes x 1 x 1 x 2 x 2 x 2
x 2
1 to 3
Note: As you change parameter tC, defaults change and should be approximately correct for that application but we strongly recommend you check all parameter default values listed in these instructions to ensure they suit your particular application and make further adjustments if necessary. Read the following sections for information about programming.
3. Typical Connections – For General Guidance Only
Table 2: typical connections
TC=1 Heating
TC=2 Cooling, Off Cycle Defrost, Time Ended
TC=3 Cooling, Off Cycle Defrost, Temperature Ended TC=4 Cooling, Off Cycle Defrost, Temperature Ended, Alarm Relay
12/24Vac/dc use Terminals 4 & 5 for power supply
TC=5 Cooling, Electric or Hot Gas Defrost Temperature Ended
12/24Vac/dc use Terminals 4 & 5 for power supply
TC6= Low Temp, Elec. Or Hot Gas Defrost, Temp. Ended, Fan Control
12/24Vac/dc use Terminals 4 & 5 for power supply TC7= Open Map to be Configured for any application
12/24Vac/dc use Terminals 4 & 5 for power supply Actual Label on The Control in the Box.
12/24Vac/dc use Terminals 4 & 5 for power supply
12/24Vac/dc use Terminals 4 & 5 for power supply
12/24Vac/dc use Terminals 4 & 5 for power supply
UXR10012015_REV1.4mm (01/25)
Universal-XR
2
Load1 is always Comp, or Heat. Load2 is OAA and Load3 is OAb.
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. If the “tC” is changed after final programming the parameters will be changed back to the default listed below.
WARNING!! Always switch the power OFF and then ON at the end of programming to update any parameter changes. Make sure you connect the correct number of probes to suit the setting of parameter tC. Failure to do this will cause probe alarms
tC setting 1, 2
3, 4, 5, 6 7
No. Probes 1 2 3
Type Room only Room + Evaporator 1 Room + Evaporator 1 + Display or AUX
Table 3: default controller parameters
Description Type (category) of controller
Label
Adjustment Range 1 = On / Off Thermostat
2 = Off cycle defrost
3 = Time / time defrost
4 = Time / temp defrost + alarm
5 = Time / temp defrost
6 = Time / temp defrost + fan delay
7 = Full Open Map Configurable
Set Point
LS to US
Probe type Differential Minimum Set Point limit Maximum Set Point limit
PTC=0 NTC=1
0.1 to 25.5°C; 1 to 45°F -55°C to Set Point; -67°F to Set Point
Set Point to 150°C; Set Point to 302°F
Anti-short cycle delay
0 to 50 min
Second compressor start delay
0 to 255 sec
Temperature alarm configuration High temperature alarm Low temperature alarm Temperature alarm delay
rE (0)= Relative to Set Point; Ab (1) = Absolute
0 to 50°C (Rel); ALL to 150°C (Abs); 0 to 90°F (Rel); ALL to 302°C (Abs) 0 to 50°C (Rel); -55°C to ALU (Abs); 0 to 90°C (Rel); -67°C to ALU (Abs)
0 to 255 min
Delay of temperature alarm at start up
0 to 720 min
Outputs activation delay at start up
0 to 255 min
Thermostat override Set point for continuous cycle Defrost delay after thermostat override
0 to 990 min
-55 to 150°C; -67 to 302°F
0 to 255 min
Interval between defrosts
1 to 250 hours
Delay start of defrost
0 to 255 min
Maximum duration of defrost
Defrost termination temperature
Maximum duration of defrost (second evaporator) Defrost termination temperature (second evaporator)
0 to 255 min
-55 to 50°C; -67 to 122°F
0 to 255 min
-55 to 50°C; -67 to 122°F
tC1 1
40.0°C; 104°F
1 2.0°C;
2°F -50.0°C;
-58°F 50.0°C; 122°F
1
1 50.0°C; 122°F -50.0°C; -58°F
15 90 0
UXR10012015_REV1.4mm (01/25)
Universal-XR
3
tC2
2
2.0°C; 36°F
1 2.0°C;
2°F -50.0°C;
-58°F 50.0°C; 122°F
1
1 50.0°C; 122°F -50.0°C; -58°F
15 90 0 0 2.0°C; 36°F 2 4 0 15
tC3
3
2.0°C; 36°F
1 2.0°C;
2°F -50.0°C;
-58°F 50.0°C; 122°F
1
1 50.0°C; 122°F -50.0°C; -58°F
15 90 0 0 2.0°C; 36°F 2 6 0 15 8.0°C 46°F
tC4
4
2.0°C; 36°F
1 2.0°C;
2°F -50.0°C;
-58°F 50.0°C; 122°F
1
1 50.0°C; 122°F -50.0°C; -58°F
15 90 0 0 2.0°C; 36°F 2 6 0 30 8.0°C 46°F
tC5
5
2.0°C; 36°F
1 2.0°C;
2°F -50.0°C;
-58°F 50.0°C; 122°F
1
1 50.0°C; 122°F -50.0°C; -58°F
15 90 0 0 2.0°C; 36°F 2 6 0 30 8.0°C 46°F
tC6
6
2.0°C; 36°F
1 2.0°C;
2°F -50.0°C;
-58°F 50.0°C; 122°F
1
1 50.0°C; 122°F -50.0°C; -58°F
15 90 0 0 2.0°C; 36°F 2 4 0 30 8.0°C 46°F 30 8.0°C 46°F
tC7
7 2.0°C; 36°F
1 2.0°C;
2°F -50.0°C;
-58°F 50.0°C; 122°F
0 0 1 50.0°C; 122°F -50.0°C; -58°F 15 90 0 0 2.0°C; 36°F 2 4 0 30 8.0°C 46°F 30 8.0°C 46°F
Description Display during defrost
Defrost display time out Defrost type (forced) Drain down time First defrost after power on Evaporator fan operating mode Evaporator fan stop temperature Evaporator fan delay after defrost Fan ON time Fan Off time Thermostat probe calibration Evaporator probe presence Evaporator probe calibration Third probe presence Third probe calibration Display Resolution Temperature measurement unit (°C/°F) Instrument display Display delay Type of action Compressor ON time with faulty probe Compressor OFF time with faulty probe Alarm muting configuration for buzzer & relay
Second Digital input configuration
Second Digital input polarity Digital input 2 delay Door open compressor / fan status
Defrost relay configuration
Auxiliary relay configuration
Alarm relay polarity Exclude temperature alarm – door open Restart regulation with door open alarm
Label
Adjustment Range
Rt (0) = Real temp. it (1) = Temp. at defrost start sEt (2) = Set Point dEF (3) = “DEF” label dEG (4) = “DEG” label
0 to 255 min
El (0) = Electrical rE (1) = Hot Gas
0 to 255 min
Y (0) = Immediate N (1) = After normal interval C_n (0) = On with Comp, off with defrost O_n (1) = On regardless of comp, off w/ defrost C_y (2) = On with comp, on with defrost O_y (3) = Always on -55 to 50°C; -67 to 122°F
0 to 255 min
0 to 15 min
0 to 15 min
-12.0 to 12.0°C; -21 to 21°F N (0) = evaporator probe not present Y (1) = evaporator probe present -12.0 to 12.0°C; -21 to 21°F n (0) = third probe not present, Y (1) = third probe present. -12.0 to 12.0°C; -21 to 21°F Y (0) = With decimal point in °C only N (1) = No decimal point °C (0) = °Celsius °F (1) = °Fahrenheit P1 (0)= Thermostat probe P2 (1) = Evaporator probe P3 (2) = Third probe sEt (3) = SET-POINT
0 to 20min0sec, res. 10sec
Cl (0) = cooling Ht (1) = heating
0 to 255 min
0 to 255 min
n (0) = Mute buzzer only Y (1) = Mute buzzer & relay dEF(0) = Start defrost dor (1)= Door switch AUS (2) = Auxiliary relay ES (3) = Energy saving onF (4) = Remote On/OFF EAl (5) = Generic alarm bAl (6) = Serious alarm Cl (0) = Closed circuit oP (1) = Open circuit
0 to 255 min
No (0) = No change FAn (1) = Fan off CPr (2) = Compressor off F_C (3) = Compressor & Fan off Alr (0) = Alarm; db (1) = Dead Band; AUS (2) = Auxiliary; CP2 (3) = Second compressor output; liG (4) = Light output; dF2 (5) = Second defrost output. dEF (6) =1st Defrost output Fan (7) = Fan output Alr (0) = Alarm; db (1) = Dead Band; AUS (2) = Auxiliary; CP2 (3) = Second compressor output; liG (4) = Light output; dF2 (5) = Second defrost output. dEF (6) =1st Defrost output Fan (7) = Fan output Cl (0)= [11 -12] closed with alarm oP (1) = [11 -12] open with alarm
0 to 255 min
n (0) = No Y (1) = Yes
UXR10012015_REV1.4mm (01/25)
Universal-XR
tC1
0.0°C; 0°F
1 0.0°C;
0°F 1 1 0 0 1 15 30 1 5 0 0 0
0 0 20 0 4
tC2 3 10
1
0.0°C; 0°F
1 0.0°C;
0°F 1 1 0 0 0 15 30 1 5 0 0 0
0
0 20 0
tC3 3 10
1
0.0°C; 0°F 1 0.0°C; 0°F 1
0.0°C; 0°F 1 1 0 0
15 30 1
5
0 0 0
0
0 20 0
tC4 3 10
1
0.0°C; 0°F 1 0.0°C; 0°F 1
0.0°C; 0°F 1 1 0 0
15 30 1
5
0 0 0
0
0 20 0
tC5 3 10 0 0 1
0.0°C; 0°F 1 0.0°C; 0°F 1
0.0°C; 0°F 1 1 0 0
15 30 1
5
0 0 0
6
7
0 20 0
tC6
3
10 0 2 1 1 8°C; 46°F 7 0 0 0.0°C; 0°F 1 0.0°C; 0°F 1 0.0°C; 0°F 1 1 0 0
15 30 1
5
0 0 0
6
7
0 20 0
tC7
3
10 0 2 1
1 8°C; 46°F
7 0 0 0.0°C; 0°F 1 0.0°C; 0°F 1 0.0°C; 0°F 1 1
0
0 0 15 30 1
5
0 0
0
6
7
0 20 0
Description
Probe selection for Condenser Alarm
Low temperature alarm of condenser
High temperature alarm of condenser Differential for temperature condenser alarm recovery Condenser temperature alarm delay Condenser temperature alarm exclusion at start up Compressor off with low temperature alarm of condenser Compressor off with high temperature alarm of condenser Temperature deviation from normal Set Point during Energy Saving
ON / OFF key enabling
Buzzer enabling
Parameter table
Software release number
Evaporator probe temperature
Third probe temperature
Label
Adjustment Range nP (0) =No Probe selected P1 (1) =Probe 1 P2 (2) =Probe 2 P3 (3) =Probe3 -55 to 150°C; -67 to 302°F -55 to 150°C; -67 to 302°F 0.1 to 25.5°C; 1 to 45°F
0 to 254 min, 255 = nU
0 to 720 min, res.10min
n (0) = No y (1) = Yes n (0) = No y (1) = Yes -30.0 to 30°C; -54 to 54°F nU (0) = Disabled OFF(1) = Enabled ES (2) = Energy saving n (0) = Disabled Y (1) = Enabled
For factory use only
Read only
Read only
Read only
tC1
0
-40°C; -40°F 110°C; 230°F 5°C; 5°F
15 90 0 0 0°C; 0°F 0
1
tC2
0
-40°C; -40°F 110°C; 230°F 5°C; 5°F
15 90 0 0 0°C; 0°F 0
1
tC3
0
-40°C; -40°F 110°C; 230°F 5°C; 5°F
15 90 0 0 0°C; 0°F 0
1
tC4
0
-40°C; -40°F 110°C; 230°F 5°C; 5°F
15
90
0
0 0°C; 0°F
0
1
tC5
0
-40°C; -40°F 110°C; 230°F 5°C; 5°F
15
90
0
0 0°C; 0°F
0
1
tC6
0
-40°C; -40°F 110°C; 230°F 5°C; 5°F
15
90
0
0 0°C; 0°F
0
1
tC7
0
-40°C; -40°F 110°C; 230°F 5°C; 5°F
15
90
0
0 0°C; 0°F
0
1
READ ON IF YOU NEED MORE DETAIL
5. Parameters Their 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 1 relay & 1 probe; 3 = Combined thermostat with time initiated & time terminated defrost 2 relays & 2 probe; 4 = Combined thermostat with time initiated & temperature terminated defrost 2 relays & 2 probes; alarm 5 = Combined thermostat with time initiated, temperature terminated defrost + 2 relays & 2 probes; defrost 6 = Combined thermostat with time initiated, temperatures terminated defrost + evaporator fans control with delay after defrost 3 relays & 3 probes; 7 = Combined thermostat with time initiated, temperatures terminated defrost + evaporator fans control with delay after defrost 3 relays & 3 probes. Fully open map
Probe Type: configures the controller to work with PTC or NTC probes. 0 = ptC = PTC, 1 = ntC = NTC.
Differential: (1 to 50) sets the degrees above Set Point at which the compressor cuts in.
Note: when tC = 1 (heating applications) the tC value is automatically set below the Set Point. If the temperature decreases and reaches set point minus differential the regulation output is activated and then turned off when the temperature reaches the set point value again.
Minimum set point limit: (-55°C to SET or -67°F to SET) sets the lower limit of set point adjustment.
Maximum set point limit: (SET to 150°C or SET to 302°F) sets the upper limit of set point adjustment.
Anti-short cycle delay: (0 to 50min) minimum interval between the compressor stop and the next possible restart.
UXR10012015_REV1.4mm (01/25)
Second compressor start delay: (0 to 255sec)
Temperature alarm configuration: rE = Related to Set Point; Ab = Absolute.
Note: Relative means alarms are linked to the Set Point and will follow it if it is adjusted. In this case ALU & ALL set the temp over & under Set Point for alarm. Absolute means ALU & ALL are fixed alarm temperatures, which are not affected by any Set Point adjustment.
High temperature alarm: ALC = rE [0 to 50°C] or [0 to 90°F]; ALC = Ab [ALL to 150°C] or [ALL to 302°F].
Universal-XR
5
Display visualisation
Description Low temperature alarm: ALC = rE [0 to 50°C] or [0 to 90°F]; ALC = Ab [-55°C to ALU] or [-67 to ALU].
Temperature alarm delay: (0 to 255min) time interval between an alarm condition occurring and the alarm is signalling.
Delay of temperature alarm at start-up: (from 0 to 720min; res. 10min) time delay of any temperature alarm during pull down following “power on”.
Outputs activation delay at start up: (0 to 255min) time delay before any output relay activates following “power on”.
Thermostat override: (0 to 990min; res. 10min) period during which the compressor will run continuously, regardless of temperature. Setting this parameter to 0 disables this function.
Set point for continuous cycle: (-55 to 150 °C or -67 to 302°F) it sets the set point used during the continuous cycle.
Defrost delay after fast freezing: (0 to 255min) time interval between the end of the thermostat override period and the start of the following defrost related to it.
Interval between defrosts: (0 to 255hours) time interval between the beginning of two consecutive defrosts.
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.
(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. Set it to zero to disable defrost cycles.
Defrost termination temperature: (-55 to 50°C or -67 to 122°F) sets the defrost termination temperature. Measured by the evaporator probe.
(Maximum) length for second defrost: (0 to 255min) when P3P = 0, (not evaporator probe: timed defrost) it sets the defrost duration, when P3P = 1 (defrost end based on temperature) it sets the
maximum length for defrost. *** Only if being used with tC7***
Note: The P3 probe will be automatically set as second evaporator probe by the tC parameter.
Second termination temperature: (-55 to 50°C or -67 to 122°F) sets the temperature measured by the second evaporator probe (P3), which causes the end of defrost.
Display during defrost: 0= rt = real temperature; 1 = it = temperature at defrost start; 2 = sEt = set point; 3 = dEF = dEF label; 4 = dEG = dEG label. Defrost display time out: (0 to 250min) after a defrost, the controller will revert to current temperature display when the temperature is back down within i ts normal working range, or after the time set in this parameter, whichever is the sooner.
Defrost type: 0 = El = electrical heater; 1 = rE = hot gas, compressor runs during defrost.
Drain down time: (0 to 255min) drain down time. Runs concurrently with Fnd (Fan delay after defrost time).Both fan and compressor are off during this time period.
First defrost after power-on: 0 = Y = immediately; 1 = n = after the idF interval time.
Fan operating mode: 0= C_n = cycles on/off with the compressor, OFF during defrost; 1= O_n= continuous mode, OFF during defrost; 2= C_Y = cycles on/off with the compressor, ON during defrost; 3= O_Y = continuous mode, ON during defrost;
Fan stop temperature: (-55 to 50°C or -67 to 122°F) temperature above which the evaporator fan stops (during the normal refrigeration cycle).
Fan delay after defrost: (0 to 255min) the time interval between the end of a defrost cycle and evaporator fans starting. Runs concurrently with Fdt (Drain down time). Always keep Fnd longer that Fdt.
UXR10012015_REV1.4mm (01/25)
Universal-XR
6
Display visualisation
Description
Fan ON time: (0 to 15min) used to set an On/Off cycle of the evaporator fans while the compressor is off. With FnC = 0 or FnC = 2, it sets the evaporator fan ON cycling time when the compressor is OFF. With Fon = 0 and FoF 0, the fans are always off. With Fon = 0 and FoF = 0 the fans are always off.
Fan OFF time: (0 to 15min) used to set an On/Off cycle of the evaporator fans while the compressor is off. With FnC = 0 or FnC = 2, it sets the evaporator fan OFF cycling time when the compressor is OFF. With Fon = 0 and FoF 0, the fans are always off. With Fon = 0 and FoF = 0 the fans are always off.
Thermostat probe calibration: (-12.0 to 12.0°C or -21 to 21°F) adjustment for thermostat probe (Room) offset.
Evaporator probe presence (Evap on the label): 0 = n = not present; 1 = Y = present.
Evaporator probe calibration: (-12.0 to 12.0°C or -21 to 21°F) adjustment for evaporator probe offset.
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.
Display resolution (Only available in Celsius): 0 = dE = with decimal point; 1 = in = without decimal point.
Temperature measurement unit:
0 = °C = Celsius; 1 = °F = Fahrenheit.
Warning: If you alter the setting of parameter rES ( decimal point on/off ) re-check the settings of all temperature related parameters Set Point, HY, LS, US, ALU, ALL, dtE, FSt, ot & oE, as they can be effected. Probe for Display: 0 = P1 = Thermostat probe; 1= P2 = Evaporator probe; 2= P3 = Third probe; 3 = sEt = DISPLAY ONLY SHOWS THE SET-POINT. THE ACTUAL TEMPERATURE CAN BE SEEN BY PRESSING THE SET BUTTON.
Display delay: (0 ÷ 20min0sec; resolution 10 sec) when the temperature increases, the display is updated of 1°C or 1°F after this time.
Type of action: 0 = Cl = cooling; 1 = Ht = heating.
Compressor ON time with faulty probe: (0 to 255min) If there is a P1 probe failure the controller will automatically cycle the compressor on/off according to Con & CoF to maintain basic cooling. Con is the compressor “ON” time.
Compressor OFF time with faulty probe: (0 to 255min) If there is a P1 probe failure the controller will automatically cycle the compressor on/off according to Con & CoF to maintain basic cooling. CoF is the compressor “OFF” time.
Alarm muting: 0 = n = Alarm relay remains active when alarm buzzer is muted; 1 = Y = Alarm relay is cancelled when alarm buzzer is muted.
Second digital input operating mode: configures the second digital input function: 0 = Starts a defrost; 1 = Input from a door switch (see parameter odC); 2 = Activates the auxiliary relay; 3 = Starts Energy Saving (Control Point becomes Set Point +/- value in HES); 4 = Remote On/OFF (puts the controller into standby); 5 = Generic external alarm (normal regulation continues); 6 = Serious external alarm (regulation is stopped).
Configurable second digital input polarity: 0 = the digital input is activated by closing the circuit; 1 = the digital input is activated by opening the circuit.
Time interval/delay for digital input 2 alarm: (0 to 255min) it defines the time delay between the detection and the subsequent signalling of the alarm.
Compressor and fan status when open door: 0 = no = normal; 1 = FAn = Fan OFF; 2 = CPr= Compressor OFF; 3 = F_C = Compressor and fan OFF.
UXR10012015_REV1.4mm (01/25)
Universal-XR
7
Display visualisation
Description Defrost relay configuration: Only on tC=7
0 = Alr = Alarm; 1 = db = Dead Band; 2 = AUS = Auxiliary; 3 = Cp2 = Second compressor output; 4 = LIG = Light output; 5 = dF2 = Second defrost output. Auxiliary relay configuration: 1 = Alr = Alarm; 2 = db = Dead Band; 3 = AUS = Auxiliary; 4 = Cp2 = Second compressor output; 5 = LIG = Light output; 6 = dF2 = Second defrost output. Alarm relay polarity: 0 = CL= contact [13 14] closed with alarm; 1 = oP = contact [13 14] open with alarm.
Temperature alarm exclusion with door open: 0 to 255min.
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).
High temperature alarm of condenser: (-55 to 150°C or -67 to 302°F) when this temperature is reached, the LA2 alarm will be raised (after the Ad2 delay time has expired).
Differential for temperature condenser alarm recovery: 0.1 to 25.5°C or 1 to 45°F.
Condenser temperature alarm delay: (0 to 255min) time interval between the detection of an alarm condition at the condenser and the relative alarm signalling.
Condenser temperature alarm exclusion during start-up: (0 to 720min, resolution 10min).
Compressor off when a low temperature alarm of the condenser is active: 0 = n = the compressor keeps on working if a low temperature alarm at the condenser is active; 1 = Y = the compressor is switched off while the low temperature alarm is active. The regulation will restart after elapsing AC delay time.
Compressor off when an high temperature alarm of the condenser is active: 0 = n = the compressor keeps on working if a low temperature alarm at the condenser is active; 1 = Y = the compressor is switched off while the low temperature alarm is active. The regulation will restart after elapsing AC delay time.
Temperature set point change during the Energy Saving cycle: (-30.0 to 30.0°C or -54 to 54°F) sets the deviation from the normal set point during the Energy Saving cycle.
ON / OFF key enabling: 0 = nu = key functionality disabled; 1 = OFF = On Off function enabled; 2 = ES = Energy Saving function enabled.
Buzzer enabling: 0 = n = disabled; 1 = Y = enabled.
Parameter table: read only for factory use.
Software release: read only shows the software release.
Evaporator probe: shows the current temperature sensed by the evaporator probe.
Third probe temperature: shows the current temperature sensed by the third probe.
UXR10012015_REV1.4mm (01/25)
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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).
Manual Defrost: keep this button pressed for 3 s to start a manual defrost cycle. The defrost icon will illuminate. (Not possible if parameter tC = 1 ).
Display current set point: after pressing and releasing this button, the set point will be displayed for 5 sec. This will not allow the set point to be altered. Changing set point value: keep this button pressed for at least 2 sec. Set point change mode is entered indicated by the small led’s flashing. Change the set point using the UP and DOWN buttons. The new value can be stored either by pressing SET button (the instrument restores temperature display) or by waiting the exit time-out to expire (15 sec).
(UP): to see the max stored temperature; in programming mode it browses the parameter codes or increases the displayed value.
(DOWN): to see the min stored temperature; in programming mode it browses the parameter codes or decreases the displayed value. Keep press 3sec just after powering on the device (and within the first 60sec) to start automatic probe recognising.
Energy Saving: Allows the control to use the HES offset parameter to change the set point.
6.2 Button Combination Functions
Table 6: button combination functions
Combination
Function
Lock & unlock the keyboard: keeping both buttons pressed for 3 sec will lock or unlock the keyboard. The display will flash PoF or Pon for a few seconds to confirm locking or unlocking respectively.
Enter programming mode: keep both buttons pressed for 3 sec, release them and then press them again for 8 sec. The first label of Pr2 level will be displayed.
Exit programming mode: press together to return to normal display.
7. Programming Mode
7.1 User Programming Level Pr1
To enter programming level Pr1 (user programming level), keep both SET and DOWN buttons pressed for 3 sec. The first parameter label will appear. Browse parameter list by using the UP or DOWN keys. Press SET to see a parameter’s current value and UP or DOWN keys to alter its value. Press SET to confirm change (the display will blink for 3 sec and then the next parameter will appear) or by waiting for the menu timeout to expire (15 sec). If no parameter is available for changes in Pr1 level, a noP label will be show.
7.2 Protected Programming Level Pr2 (All Visible Parameters Can Be Found Here)
First enter Pr1 level (as described above) then with any parameter label displayed keep both SET and DOWN buttons pressed for 8 sec. The first parameter label will appear. Browse parameter list by using the UP or DOWN keys. Press SET to see a parameter’s current value and UP or DOWN keys to alter its value. Press SET to confirm change (the display will blink for 3 sec and then the next parameter will appear) or by waiting for the menu timeout to expire (15 sec). From Pr2 level it is also possible to add or remove any parameter to / from Pr1 by pressing both SET & DOWN while its label is displayed. Accessibility of any particular parameter via Pr1 level is confirmed by the alarm LED lighting up while its label is displayed WARNING: if no button is pressed for 15 sec, any modified value will be stored into memory and the controller will return to the normal display mode.
8. Other Features of the Universal-XR
As well as the main digital display, there are some small icons on the front panel. These are used to indicate the status of the loads controlled by the instrument. Each icon function is described in the following table.
UXR10012015_REV1.4mm (01/25)
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Table 7: display signalling description
Combination
Function
Meaning
ON
Light (AUX) output enabled.
ON FLASHING ON FLASHING ON FLASHING
ON
Cooling enabled. Anti-short cycle delay in progress. Fan enabled. Delay time on fan activation is running (Fnd > 0) Defrost in progress. Drip time in progress (Fdt > 0) or delay on start defrosting is running (dSd > 0).
Auxiliary output activated.
ON
Energy Saving activated.
ON
ON ON FLASHING ON FLASHING
Thermostat override enabled.
ALARM signal: when in programming mode and in Pr2 level, this icon lights up notifying this parameter is also accessible in the Pr1 level. All measurement units are in Celsius degrees. Programming mode. All measurement units are in Fahrenheit degrees. Programming mode.
9. Thermostat Override ( not available when parameter tC = 1)
For rapid chilling or freezing, the thermostat can be overridden by pressing the UP button until the icon lights up. The compressor will run in continuous mode, for the time period set in parameter CCt. Normal operation will then resume automatically after the CCt is exhausted or when the CCS is exhausted (Continuous Cycle Set Point). The cycle can also be terminated manually by pressing the UP button again for about 3 seconds.
10. Defrost Types
tC parameter value
1 2 or 3 4, 5, 6 or 7
Action
No defrost Off cycle defrost by timer Forced type of defrost: Electrical or Hot Gas
tdF = 0: defrost is electrical; tdF = 1: defrost is by hot gas.
11. Evaporator Fan Control (only when parameter tC = 6 or 7)
The fan control mode is selected by means of the “FnC” parameter:
FnC parameter
C_n O_n C_Y O_Y
Action
Fans will cycle ON and OFF with the compressor and be off during defrost cycle. Fans will run continuously, but be off during defrost cycle. Will switch ON and OFF with the compressor and be on during defrost cycle (*). Fans will run continuously and be on during defrost cycle (*).
(*) Note: Fans will stop if the temperature value set in parameter “FSt” is exceeded. Parameter FSt sets the fan stop temperature. This is the maximum temperature, detected by the evaporator probe, above which the evaporator fans will stop. Leave FSt above ambient temperature during commissioning to avoid fan short cycle. After finishing the defrost phase, there is a stand still drain time, set by parameter Fdt. When this period has expired, the refrigeration cycle commence but the evaporator fans remain off until Fnd (fan delay) times out.
UXR10012015_REV1.4mm (01/25)
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12. Special Applications Dead Band Control
12.1 Dead Band Control (Cooling & Heating) tc=7
With [oAb = db], the compressor relay controls cooling as normal but the 3rd (auxiliary/ fan) relay is used to control a heater. The value entered in parameter HY will now be set equal on both sides of the SET POINT. Example: if [HY = 1°C] that will create a 2°C Dead Band. At [SET POINT + HY], cooling switches on. At [SET POINT HY], heating switches on. Either cooling or heating switch off when temperature returns to SET POINT.
13. Alarms
Message Message Mode
Cause
Outputs
EE Flashing
Data or memory failure
Alarm output ON; Other outputs unchanged.
P1 Flashing
Thermostat probe failure
Alarm output ON; Compressor output according to parameters Con and CoF.
P2 Alternating with room temperature Evaporator probe failure
Alarm output ON; Other outputs unchanged; End defrost is timed.
P3 Alternating with room temperature Second evaporator probe failure Alarm output ON; Other outputs unchanged; End defrost is timed.
HA Alternating with room temperature High temperature alarm
Alarm output ON; Other outputs unchanged.
LA Alternating with room temperature Minimum temperature alarm
Alarm output ON; Other outputs unchanged.
HA2 Alternating with room temperature Condenser max temp alarm
Alarm output ON; Other outputs unchanged.
LA2 Alternating with room temperature Condenser max temp alarm
Alarm output ON; Other outputs unchanged.
dA Alternating with room temperature Door open alarm
Alarm output ON: Outputs re-start if parameter rrd = 1.
EA Alternating with room temperature Generic external alarm
Alarm output ON; Other outputs unchanged.
bAL Alternating with room temperature Serious external alarm
Alarm output ON; Other outputs OFF.
13.1 Muting Alarm Buzzer & Relay
The alarm buzzer can be muted, by pressing any button. The controller will briefly show the reset “rES” label. Parameter tbA defines how the alarm relay will respond to the muting of the buzzer.
· tbA = n: the alarm relay will remain active until the alarm condition is rectified; · tbA = Y: the alarm relay de-activates when the buzzer is muted. In either case, the display will flash an alarm label until the condition is rectified.
13.2 Alarm “EE”
The Copeland 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. WHAT TO DO
1. Cancel the alarm by pressing a key. 2. Check the value of all parameters and restore correct values when wrong. 3. Check the correct instrument operation and in case of further errors replace it.
13.3 Alarm Recovery
Probe alarms “P1”, “P2” and “P3” start 30 seconds after a fault in probe is detected; they automatically stop 30 seconds after the probe restarts normal operation. Check connections before replacing the probe.
Temperature alarms “HA” and “LA” automatically stop as soon as the thermostat temperature returns to normal values and when defrost starts. Temperature alarms “HA2” and “LA2″ automatically stop as soon as the condenser temperature returns to normal values.
UXR10012015_REV1.4mm (01/25)
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14. Removing Security Level Protection
It is possible to allow access to any parameter from Pr1 level. To do this, go into Pr2 as previously described. Scroll to the label of the parameter you require and then press the SET and DOWN buttons in quick succession. The decimal point LED will be on indicating that access to this particular parameter is now possible from Pr1 level. Its label will now appear when in Pr1 programming level and its value can be altered. To restore security level protection, use the same procedure (the decimal point LED will go out after pressing both buttons).
15. Mounting
The Universal-XR should be mounted in a panel, in a 29mm (1.14″) x 71mm (2.8”) hole, and fixed using the special brackets supplied. Ambient temperature for correct operation is 32 to 140°F. Avoid places subject to strong vibrations, corrosive gases, excessive dirt or humidity (20 to 85% non-condensing RH is the recommended working range). Make sure air can freely circulate through the cooling holes slots at the rear side of the controller.
16. Electrical Connections
The instrument is provided with screw terminal block to connect cables with a cross section up to 2.5 mm2. Before connecting cables make sure the power supply complies with the instrument’s requirements. Separate the probe cables from the power supply cables, from the outputs and from the power connections. Do not exceed the maximum current rating for each relay; in case of heavier loads use a suitable external relay.
17. Probes
It is recommended to place the thermostat probe away from rapid air streams to correctly measure the average room temperature. Place the defrost termination probe among the evaporator fins in the coldest place, where most ice is formed, far from heaters or from the warmest place during defrost, to prevent premature defrost termination.
18. Technical Data
Housing: Size: Mounting: Frontal protection: Connections: Power supply: Power absorption: Display: Inputs: Probes (supplied):
Self-extinguishing ABS Frontal 32×74 mm; depth 70mm Panel mounting in a 71×29 mm panel cut-out IP65 Screw terminal block 2.5 mm2 wiring 120Vac, -10% +15% or 230Vac, -10% +15% 4 VA max 3 digits, red LED, 14.2mm high a maximum of 3 temperature probes, PTC or NTC type. 2 x NTC, range-50 TO 110°C (-58 to 230°F) with 1.5 meter (4.98′) cables
Relay outputs: Compressor: Defrost: Fans:
Amps Resistive SPST relay 16FLA / 96LRA, 250Vac SPDT relay 10A, 250Vac SPST relay 5A, 250Vac
Other output:
Buzzer for acoustic signalling of alarms
Data storing:
Non-volatile memory (EEPROM)
Ambient temperature: 0 to 60°C (32 to 140°F)
Ambient humidity: 20 to 85% (non condensing)
Storage temperature: -30 to 85°C (-22 to 185°F)
Operating range: PTC: -50 to 150°C (-58 to 302°F); NTC: -50 to 110°C (-40 to 230°F)
Resolution:
0.1°C or 1°F (selectable)
Accuracy at 25°C: (range -40 to 50°C) ±0.5 °C ±1digit
19. Troubleshooting
Problem
Display flashing HA
Possible reason
· Temperature too high.
Display flashing LA
· Temperature too low.
Display flashing HA2
· Condenser temperature too high.
Display flashing LA2
· Condenser temperature too low.
Display flashing P1 Display flashing P2
· Fault with thermostat probe. · Wrong type of probe fitted (NTC/PTC).
· Fault with evaporator probe. · Wrong type of probe fitted (NTC/PTC) · Parameter tC has been set to 4, 5 or 6
without evaporator probe fitted.
Notes
· Check cooling system. · Check alarm settings.
· Check cooling system. · Check alarm settings.
· Check condenser cooling system. · Check alarm settings.
· Check condenser cooling system. · Check alarm settings.
· Check probe connections and resistance value. · Change probe type or alter parameter PbC.
· Check probe connections and resistance value. · Change probe type or alter parameter PbC. · Fit evaporator probe or alter parameter tC.
UXR10012015_REV1.4mm (01/25)
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Problem
Display flashing P3
Display flashing EE
Possible reason
· Fault with third probe. · Wrong type of probe fitted (NTC/PTC). · Parameter tC has been set to 6 without
third probe fitted.
Data corruption.
Display flashing dA Display flashing EA
Display flashing bAL
Buttons will not work
Door has been left open too long.
A non-serious external alarm has been detected by the digital input.
A serious external alarm has been detected by the digital input.
Buttons have been locked.
Parameter cannot be adjusted over its full range
Some other parameter is conflicting and preventing further adjustment.
Power on but no output operates Anti-short cycle delay in progress, all relays
Small LED’s flashing
being held off until it expires.
Evaporator fan short cycling
Parameter FSt set too low.
Notes
· Check probe connections and resistance value. · Change probe type or alter parameter PbC. · Fit evaporator probe or alter parameter tC.
Check for electrical spikes and interference. Fit filters DIXL930 & DIXL932. Ensure probe cables are separated from power cables. Re-check all parameter settings. Replace controller if still not working. Shut the door. Trace and rectify the external problem.
Trace and rectify the external problem.
Unlock buttons by pressing both UP & DOWN buttons until display flashes Pon. Check other parameter settings.
Wait or adjust parameters AC or odS.
Adjust FSt to a higher setting. During commissioning, set it above ambient until pull down is complete, then re-set to a more suitable temperature.
20. Change over from F to F or Vis-versa
1. Hold the Set & Down (n) buttons, until HY is displayed, release both buttons then hold the Set and Down (n) buttons until Pr2 is displayed. Release the buttons.
2. Scroll with the up button to CF, then press and release Set. Change the 1 to 0, then press and release Set. 3. Scroll down and adjust the ALL, ALU, FST, AFH, ALH, LS, US, rES as well as the HY. 4. Let the control time out to the temp display.
Adjust the Set temp by holding the Set until the C or F starts to flash, adjust the set point.
21. Enter Your Settings Here For Future Reference (Tc=7 Set Up As Dead Band Control)
Label tC PbC Hy LS US AC AC1 ALP ALC ALU ALL AFH ALd dAo odS CCt CCS
Description Parameter map selection Kind of probe 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 Continuous cycle duration Set point for continuous cycle
Edit
Original
Vis. Level
Min
Max
7
Pr2
1
7
ntC
Pr2
4
Pr1
1
45
-50
Pr2
-67
75
230
Pr2
75
302
1
Pr2
0
50
0
Pr2
0
255
0
Pr2
Ab
Pr2
230
Pr1
-50
302
-50
Pr1
-67
230
1
Pr1
1
45
15
Pr2
0
255
90
Pr2
0
720
0
Pr2
0
255
0
Pr2
0
990
0
Pr2
-67
302
Comment
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Label dAF idF dSd dFP MdF dtE dSP MdS dtS dFd dAd tdF Fdt dPo FnC FSt Fnd Fon FoF FAP FCt FSU ot P2P oE P3P o3 rES CF Lod dLy CH Con CoF tbA i2F i2P di2 odC oAA oAb
Description Defrost delay after fast freezing Interval between defrost cycles Start defrost delay Probe selection for first defrost (Maximum) length for first defrost Defrost termination temperature (first evaporator) Probe selection for second defrost (Maximum) length for second defrost Defrost termination temperature (second evaporator) Display during defrost Max display delay after defrost Defrost type Drain down time First defrost after start-up Fan operating mode Fan stop temperature Fan delay after defrost Fan on time with compressor off Fan off time with compressor off Probe selection for fan management Differential of temperature to force fan activation Fan management 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 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 Digital input 2 polarity Digital input 2 alarm delay Compressor and fan status when the door is open First output configuration Second output configuration
UXR10012015_REV1.4mm (01/25)
Universal-XR
Edit
Original
Vis. Level
Min
Max
2
Pr2
0
255
6
Pr1
0
250
0
Pr2
0
255
3
Pr2
30
Pr1
0
255
46
Pr1
-67
122
0
Pr2
0
Pr2
0
255
0
Pr2
-67
122
3
Pr2
10
Pr2
0
255
0
Pr2
2
Pr1
0
255
0
Pr2
1
Pr2
46
Pr1
-67
122
5
Pr1
0
255
0
Pr2
0
15
0
Pr2
0
15
1
Pr2
5
Pr2
0
90
0
Pr2
0
Pr2
-21
21
1
Pr2
0
Pr2
-21
21
0
Pr2
0
Pr2
-21
21
1
Pr2
1
Pr2
0
Pr2
0.00
Pr2
0
Pr2
15
Pr2
0
255
310
Pr2
0
255
0
Pr2
5
Pr2
0
Pr2
0
Pr2
0
255
0
Pr2
0
Pr2
3
Pr2
Comment
14
Label AoP dot rrd AP2 AL2 AU2 AH2 Ad2 dA2 bLL AC2 HES onF bEn Ptb Adr SEt
Description Alarm relay polarity Temperature alarm exclusion with door open Regulation restart with door open alarm Probe selection for condenser temperature alarms Condenser low temperature alarm Condenser high temperature alarm Differ. for condenser temp. alarm recovery Condenser temperature alarm delay Delay of condenser temper. alarm at start up Compressor off for condenser low temperature alarm Compressor off for condenser high temperature alarm Differential for Energy Saving On/off key configuration Buzzer enabling Map code READ ONLY Serial address Set point
Notes:
Edit
Original
Vis. Level
Min
Max
0
Pr2
20
Pr2
0
255
0
Pr2
0
Pr2
0
Pr2
-67
302
0
Pr2
-67
302
1
Pr2
1
45
0
Pr2
0
Pr2
0
720
0
Pr2
0
Pr2
0
Pr2
-54
54
2
Pr2
1
Pr2
Pr2
0
655 35
1
Pr2
1
247
75
-50
230
Comment
copeland.com
UXR10012015_REV1.4mm (01/25)
Universal-XR
15
UXR10012015_REV1.4mm (01/25)
Universal-XR
16
Documents / Resources
 |
COPELAND XR Unit of Measure Change [pdf] User Guide XR Unit of Measure Change, of Measure Change, Measure Change |