Dixell XR60C digital controller User manual

Dixell XR60C digital controller User manual

Below you will find brief information for digital controller XR60C. This digital controller with defrost and fans management is suitable for applications on medium or low temperature ventilated refrigerating units. It has three relay outputs to control compressor, fan, and defrost, which can be either electrical or reverse cycle (hot gas). It is also provided with two NTC or PTC probe inputs, one for temperature control, the other, to be located onto the evaporator, to control the defrost termination temperature and to managed the fan.

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Dixell XR60C - User Manual | Manualzz
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At the end of defrost dripping time is started, its length is set in the FSt parameter. With
FSt =0 the dripping time is disabled.
Digital controller with defrost and fans management
XR60C
3.3 CONTROL OF EVAPORATOR FANS
The fan control mode is selected by means of the “FnC” parameter:
CONTENTS
1. GENERAL WARNING_____________________________________________
2. GENERAL DESCRIPTION _________________________________________
3. CONTROLLING LOADS ___________________________________________
4. FRONT PANEL COMMANDS _______________________________________
5. TEMPERATURE ALARM AND ITS DURATION RECORDING (HACCP)______
6. MAIN FUNCTIONS _______________________________________________
7. PARAMETERS __________________________________________________
8. DIGITAL INPUT__________________________________________________
9. INSTALLATION AND MOUNTING ___________________________________
10. ELECTRICAL CONNECTIONS______________________________________
11. HOW TO USE THE HOT KEY ______________________________________
12. ALARM SIGNALS ________________________________________________
13. TECHNICAL DATA _______________________________________________
14. CONNECTIONS _________________________________________________
15. DEFAULT SETTING VALUES ______________________________________
FnC = C_n:fans will switch ON and OFF with the compressor and not run during
defrost;
FnC = o_n fans will run even if the compressor is off, and not run during defrost;
After defrost, there is a timed fan delay allowing for drip time, set by means of the “Fnd”
parameter.
FnC = C_Y fans will switch ON and OFF with the compressor and run during defrost;
FnC = o_Y fans will run continuously also during defrost
1
1
1
1
1
2
2
3
3
3
3
4
4
4
4
An additional parameter “FSt” provides the setting of temperature, detected by the
evaporator probe, above which the fans are always OFF. This is used to make sure
circulation of air only if his temperature is lower than set in “FSt”.
3.3.1 Forced activation of fans
This function managed by the Fct parameter is designed to avoid short cycles of fans,
that could happen when the controller is switched on or after a defrost, when the room
air warms the evaporator.
Functioning: if the difference of temperature between the evaporator and the room
probes is more than the value of the Fct parameter, the fans are switched on.
With Fct=0 the function is disabled.
1. GENERAL WARNING
1.1 PLEASE READ BEFORE USING THIS MANUAL
•
•
•
1.2
•
•
•
•
•
•
•
•
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.
4. FRONT PANEL COMMANDS
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
Model XR60C, 32x74 mm format, is a microprocessor based controller, suitable for
applications on medium or low temperature ventilated refrigerating units. It has three
relay outputs to control compressor, fan, and defrost, which can be either electrical or
reverse cycle (hot gas). It is also provided with two NTC or PTC probe inputs, one for
temperature control, the other, to be located onto the evaporator, to control the defrost
termination temperature and to managed the fan. The instrument is fully configurable
through special parameters that can be easily programmed through the keyboard.
SET: To display target set point; in programming mode it selects a parameter or
confirm an operation.
(DEF) To start a manual defrost
(UP): To see the last temperature alarm happened; in programming mode it
browses the parameter codes or increases the displayed value.
(DOWN) To see the last temperature alarm happened; in programming mode it
browses the parameter codes or decreases the displayed value.
9
8
KEY COMBINATIONS:
9 +8
SET + 8
SET + 9
To lock & unlock the keyboard.
To enter in programming mode.
To return to the room temperature display.
4.1 USE OF LEDS
Each LED function is described in the following table.
LED
MODE
ON
Flashing
ON
-Programming Phase (flashing with
- Anti-short cycle delay enabled
Defrost enabled
- Programming Phase (flashing with
- Drip time in progress
Fans enabled
Flashing
Fans delay after defrost in progress.
ON
An temperature alarm happened
ON
Flashing
3. CONTROLLING LOADS
3.1 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.
FUNCTION
Compressor enabled
)
)
5. TEMPERATURE ALARM AND ITS DURATION RECORDING (HACCP)
XR60C signals and records temperature alarms, together with their duration and max
value reached. See drawing:
Ex. High temperature alarm
Tem pera ture
M ax
Tem p erature
In case of fault in the thermostat probe the start and stop of the compressor are timed
through parameters “COn” and “COF”.
3.2 DEFROST
S et
Two defrost modes are available through the “tdF” parameter: defrost through electrical
heater (tdF = EL) and hot gas defrost (tdF = in). Other parameters are used to control
the interval between defrost cycles (IdF), its maximum length (MdF) and two defrost
modes: timed or controlled by the evaporator’s probe (P2P).
1592007250 XR60C GB r1.1 27.10.2003.doc
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5.1 HOW TO SEE THE ALARM DURATION AND MAX (MIN) TEMPERATURE
6.6 HOW TO LOCK THE KEYBOARD
If the alarm LED is on, an alarm has taken place.
To see the kind of alarm, the max (min) reached temperature and alarm duration do as
follows:
1.
Push the Up or Down key.
2.
On the display the following message is shown::
“HAL” for high temperature alarm (“LAL” for the minimum allarm), followed by the
Maximum (minimum) temperature.
Then the “tiM” (tiMe) message is displayed, followed by the “Duration” in h.mm.
3.
Then the instrument displays the temperature once again.
1.
2.
3.
Keep pressed for more than 3 s the UP and DOWN keys.
The “POF” message will be displayed and the keyboard will be locked. At this point
it will be possible only to see the set point or the MAX o Min temperature stored
If a key is pressed more than 3s the “POF” message will be displayed.
6.7 TO UNLOCK THE KEYBOARD
Keep pressed together for more than 3s the
will be displayed.
NOTE1: if an alarm is still occurring the “tim” shows the partial duration.
NOTE2: the alarm is recorded when the temperature come back to normal values
9 and 8 keys, till the “Pon” message
6.8 THE CONTINUOUS CYCLE
5.2 HOW TO RESET A RECORDED ALARM OR ONE THAT IS STILL
OCCURRING
1.
2.
When defrost is not in progress, it can be activated by holding the
“ ” key pressed for about 3 seconds.
Hold the SET key pressed for more than 3s, while the recorded alarm is displayed.
(the rSt message will be displayed)
To confirm the operation, the “rSt” message starts blinking and the normal
temperature will be displayed.
6.1 HOW TO SEE THE SETPOINT
2.
Push and immediately release the SET key: the display will
show the Set point value;
Push and immediately release the SET key or wait for 5 seconds to display the
probe value again.
6.2 HOW TO CHANGE THE SETPOINT
1.
2.
3.
4.
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
LED starts blinking;
To change the Set value push the
or arrows within 10s.
To memorise the new set point value push the SET key again or wait 10s.
9 8
6.3 HOW TO START A MANUAL DEFROST
Push the DEF key for more than 2 seconds and a manual defrost
will start.
6.4 HOW TO CHANGE A PARAMETER VALUE
To change the parameter’s value operate as follows:
1. Enter the Programming mode by pressing the Set and DOWN
key for 3s ( and
start blinking).
2. Select the required parameter.
3. Press the “SET” key to display its value (now only the
LED is
blinking).
4. Use “UP” or “DOWN” to change its value.
5. Press “SET” to store the new value and move to the following parameter.
To exit: Press SET + UP 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.
6.5 THE HIDDEN MENU
The hidden menu Includes all the parameters of the instrument.
6.5.1 HOW TO ENTER THE HIDDEN MENU
1. Enter the Programming mode by pressing the Set +
key for
3s (LED 1 and
start blinking).
2. When a parameter is displayed keep pressed the Set+
for
more than 7s.
The Pr2 label will be displayed immediately followed from the HY
parameter. NOW YOU ARE IN THE HIDDEN MENU.
3. Select the required parameter.
4. Press the “SET” key to display its value (Now only the
LED is blinking).
5. Use
or 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.
To exit: Press SET +
NOTE: the set value is stored even when the procedure is exited by waiting the time-out
to expire.
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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 “ ” for 3 seconds.
9
7. PARAMETERS
6. MAIN FUNCTIONS
1.
9
8
9
6.5.2 HOW TO MOVE A PARAMETER FROM THE HIDDEN MENU
TO THE FIRST LEVEL AND VICEVERSA.
Each parameter present in the HIDDEN MENU can be removed or put into “THE FIRST
LEVEL” (user level) by pressing “SET + ”.
In HIDDEN MENU when a parameter is present in First Level the decimal point is on.
8
1592007250 XR60C GB r1.1 27.10.2003.doc
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NOTE: the parameters preceded by dots are in the Hidden Menu.
REGULATION
Hy Differential: (0,1 ÷ 25,5°C / 1÷255 °F) Intervention differential for set point.
Compressor Cut IN is Set Point Plus Differential (Hy). Compressor Cut OUT is
when the temperature reaches the set point.
• LS Minimum set point: (- 50°C÷SET/-58°F÷SET): Sets the minimum acceptable
value for the set point.
• US Maximum set point: (SET÷110°C/ SET÷230°F). Set the maximum
acceptable value for set point.
Ot Thermostat probe calibration: (-12.0÷12.0°C;
-120÷120°F) allows to adjust possible offset of the thermostat probe.
P2P Evaporator probe presence: n= not present: the defrost stops by time; y=
present: the defrost stops by temperature.
• OE Evaporator probe calibration: (-12.0÷12.0°C; -120÷120°F). allows to adjust
possible offset of the evaporator probe.
• OdS Outputs activation delay at start up: (0÷255min) 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 following restart.
• CCt Compressor ON time during continuous cycle: (0.0÷24.0h; res. 10min)
Allows to set the length of the continuous cycle: compressor stays on without
interruption for the CCt time. Can be used, for instance, when the room is filled with
new products.
• COn Compressor ON time with faulty probe: (0÷255 min) time during which the
compressor is active in case of faulty thermostat probe. With COn=0 compressor is
always OFF.
• COF Compressor OFF time with faulty probe: (0÷255 min) time during which
the compressor is OFF in case of faulty thermostat probe. With COF=0 compressor
is always active.
DISPLAY
• CF Temperature measurement unit:
°C=Celsius; °F=Fahrenheit. WARNING: When the measurement unit is changed
the SET point and the values of the parameters Hy, LS, US, Ot, ALU and ALL
have to be checked and modified if necessary).
rES Resolution (for °C): (in = 1°C; dE = 0.1 °C) allows decimal point display.
•
Lod Display : select which probe is displayed by the instrument: P1 =
Thermostat probe; P2 = Evaporator probe
DEFROST
tdF Defrost type: EL = electrical heater; in = hot gas
dtE Defrost termination temperature: (-50÷50 °C/
-58÷122°F) (Enabled only when EdF=Pb) sets the temperature measured by the
evaporator probe, which causes the end of defrost.
IdF Interval between defrost cycles: (0÷120h) Determines the time interval between
the beginning of two defrost cycles.
MdF (Maximum) length for defrost: (0÷255min) When P2P = n, (not evaporator
probe: timed defrost) it sets the defrost duration, when P2P = y (defrost end based
on temperature) it sets the maximum length for defrost.
• dSd Start defrost delay: ( 0÷99min) This is useful when different defrost start
times are necessary to avoid overloading the plant.
• dFd Temperature displayed during defrost: (rt = real temperature; it =
temperature at defrost start; SEt = set point; dEF = “dEF” label)
• dAd MAX display delay after defrost: (0÷255min). Sets the maximum time
between the end of defrost and the restarting of the real room temperature display.
• Fdt Drip time: (0÷120 min) time interval between reaching defrost termination
temperature and the restoring of the control’s normal operation. This time allows
the evaporator to eliminate water drops that might have formed due to defrost.
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dPo First defrost after start-up: (y = immediately; n = after the IdF time)
dAF Defrost delay after continuous cycle: (0÷23.5h) time interval between
the end of the fast freezing cycle and the following defrost related to it.
FANS
FnC Fans operating mode: C-n= runs with the compressor, OFF during defrost;
o-n = continuous mode, OFF during defrost;
C-Y = runs with the compressor, ON during defrost;
o-Y = continuous mode, ON during defrost;
Fnd Fans delay after defrost: (0÷255min) Time interval between end of defrost and
evaporator fans start.
Fct Temperature differential avoiding short cycles of fans (0÷59°C; Fct=0 function
disabled). If the difference of temperature between the evaporator and the room
probes is more than the value of the Fct parameter, the fans are switched on.
FSt Fans stop temperature: (-50÷50°C/122°F) setting of temperature, detected by
evaporator probe, above which fans are always OFF.
ALARMS
• ALC Temperature alarms configuration: (Ab; rE)
Ab= absolute temperature: alarm temperature is given by the ALL or ALU values.
rE = temperature alarms are referred to the set point. Temperature alarm is
enabled when the temperature exceeds the “SET+ALU” or “SET-ALL” values.
ALU MAXIMUM temperature alarm: (SET÷110°C; SET÷230°F) when this
temperature is reached the alarm is enabled, after the “ALd” delay time.
ALL Minimum temperature alarm: (-50.0 ÷ SET°C; -58÷230°F when this temperature
is reached the alarm is enabled, after the “ALd” delay time.
• ALd Temperature alarm delay: (0÷255 min) time interval between the detection
of an alarm condition and alarm signalling.
• dAO Exclusion of temperature alarm at startup: (from 0.0 min to 23.5h) time
interval between the detection of the temperature alarm condition after instrument
power on and alarm signalling.
DIGITAL INPUT
i1P Digital input polarity: oP: the digital input is activated by opening the contact; CL:
the digital input is activated by closing the contact.
i1F Digital input configuration:
EAL = external alarm: “EA” message is displayed; bAL = serious alarm “CA”
message is displayed. PAL = pressure switch alarm, “CA” message is displayed;
dor = door switch function; dEF = activation of a defrost cycle; LHt =not enabled;
Htr = kind of action inversion (cooling – heating).
did: (0÷255 min)
with i1F= EAL or i1F = bAL digital input alarm delay: delay between the
detection of the external alarm condition and its signalling.
with i1F= dor: door open signalling delay
with i1F = PAL: time for pressure switch function: time interval to calculate the
number of the pressure switch activation.
nPS Pressure switch number: (0 ÷15) Number of activation of the pressure switch,
during the “did” interval, before signalling the alarm event (I2F= PAL).
If the nPS activation in the did time is reached, switch off and on the
instrument to restart normal regulation.
• odc Compressor and fan status when open door: no = normal; Fan = Fan
OFF; CPr = Compressor OFF; F_C = Compressor and fan OFF.
OTHER
PbC Type of probe: it allows to set the kind of probe used by the instrument: PbC =
PBC probe, ntC = NTC probe.
• dP1 First probe display
• dP2 Second probe display
• rEL Software release for internal use.
• Ptb Parameter table code: readable only.
8. DIGITAL INPUT
The free contact digital input is programmable in five different configurations by the “i1F”
parameter.
8.1 DOOR SWITCH INPUT (i1F = dor)
It signals the door status and the corresponding relay output status through the “odc”
parameter:
no = normal (any change);
Fan = Fan OFF;
CPr = Compressor OFF;
F_C = Compressor and fan OFF.
Since the door is opened, after the delay time set through parameter “did”, the door
alarm is enabled, the display shows the message “dA” and the regulation restarts.
The alarm stops as soon as the external digital input is disabled again. With the door
open, the high and low temperature alarms are disabled.
8.2 GENERIC ALARM (i1F = EAL)
As soon as the digital input is activated the unit will wait for “did” time delay before
signalling the “EAL” alarm message. The outputs status don’t change. The alarm stops
just after the digital input is de-activated.
1592007250 XR60C GB r1.1 27.10.2003.doc
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8.3 SERIOUS ALARM MODE (i1F = bAL)
When the digital input is activated, the unit will wait for “did” delay before signalling the
“CA” alarm message. The relay outputs are switched OFF. The alarm will stop as soon
as the digital input is de-activated.
8.4 PRESSURE SWITCH (i1F = PAL)
If during the interval time set by “did” parameter, the pressure switch has reached the
number of activation of the “nPS” parameter, the “CA” pressure alarm message will be
displayed. The compressor and the regulation are stopped. When the digital input is ON
the compressor is always OFF.
If the nPS activation in the did time is reached, switch off and on the instrument
to restart normal regulation.
8.5 START DEFROST (i1F = dFr)
It starts a defrost if there are the right conditions. After the defrost is finished, the normal
regulation will restart only if the digital input is disabled otherwise the instrument will wait
until the “MdF” safety time is expired.
8.6 INVERSION OF THE KIND OF ACTION: HEATING-COOLING (i1F = Htr)
This function allows to invert the regulation of the controller: from cooling to heating and
viceversa.
8.7 DIGITAL INPUTS POLARITY
The digital input polarity depends on the “i1P” parameter.
i1P=CL: the input is activated by closing the contact.
i1P=OP: the input is activated by opening the contact
9. INSTALLATION AND MOUNTING
Instrument XR60C shall be mounted on vertical panel, in a
29x71 mm hole, and fixed using the special bracket
supplied.
To obtain an IP65 protection grade use the front panel
rubber gasket (mod. RG-C) as shown in figure.
The temperature range allowed for correct operation is 0÷60 °C. Avoid places subject
to strong vibrations, corrosive gases, excessive dirt or humidity. The same
recommendations apply to probes. Let air circulate by the cooling holes.
10. 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 the power connections. Do not exceed the maximum
current allowed on each relay, in case of heavier loads use a suitable external relay.
10.1 PROBE CONNECTION
The probes shall be mounted with the bulb upwards to prevent damages due to casual
liquid infiltration. It is recommended to place the thermostat probe away from 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.
11. HOW TO USE THE HOT KEY
11.1 HOW TO PROGRAM A HOT KEY FROM THE INSTRUMENT (UPLOAD)
1.
2.
3.
4.
Program one controller with the front keypad.
When the controller is ON, insert the “Hot key” and push
key; the "uPL"
message appears followed a by flashing “End”
Push “SET” key and the End will stop flashing.
Turn OFF the instrument remove the “Hot Key”, then turn it ON again.
9
NOTE: the “Err” message is displayed for failed programming. In this case push again
key if you want to restart the upload again or remove the “Hot key” to abort the
operation.
9
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4.
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14.2 XR60C – 120VAC OR 230 VAC
11.2 HOW TO PROGRAM AN INSTRUMENT USING A HOT KEY
(DOWNLOAD)
1.
2.
Turn OFF the instrument.
Insert a programmed “Hot Key” into the 5 PIN receptacle and then turn the
Controller ON.
Automatically the parameter list of the “Hot Key” is downloaded into the
Controller memory, the “doL” message is blinking followed a by flashing “End”.
After 10 seconds the instrument will restart working with the new parameters.
Remove the “Hot Key”..
Max 8(3)A250V
16A
a
R oo m
8(3)A
Line
Def
N.C.
Hot Key
Fan Comp
NOTE the message “Err” is displayed for failed programming. In this case turn the unit
off and then on if you want to restart the download again or remove the “Hot key” to
abort the operation.
NOTE: The compressor relay is 8(3)A or 16(6)A according to the model.
120Vac supply: connect to the terminals 6 and 7.
12. ALARM SIGNALS
15. DEFAULT SETTING VALUES
Message
Cause
“P1”
Room probe failure
“P2”
Evaporator probe failure
Outputs
Compressor output according to par.
“Con” and “COF”
Defrost end is timed
“HA”
Maximum temperature alarm
Outputs unchanged.
“LA”
“dA”
“EA”
“CA”
“CA”
Minimum temperature alarm
Door open
External alarm
Serious external alarm (i1F=bAL)
Pressure switch alarm (i1F=PAL)
Outputs unchanged.
Compressor and fans restarts
Output unchanged.
All outputs OFF.
All outputs OFF
12.1 ALARM RECOVERY
Probe alarms “P1” and “P2” start some seconds after the fault in the related probe; they
automatically stop some 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.
Alarms “EA” and “CA” (with i1F=bAL) recover as soon as the digital input is disabled.
Alarm “CA” (with i1F=PAL) recovers only by switching off and on the instrument.
13. TECHNICAL DATA
14. CONNECTIONS
Range
°C/°F
LS÷US
0,1÷25.5°C/ 1÷ 255°F
-50°C÷SET/-58°F÷SET
SET÷110°C/ SET ÷ 230°F
-12÷12°C /-120÷120°F
n=not present; Y=pres.
-12÷12°C /-120÷120°F
0÷255 min
0 ÷ 50 min
0.0÷24.0h
0 ÷ 255 min
0 ÷ 255 min
°C ÷ °F
-5/0
2/4
-50/-58
110/230
0
y
0
0
1
0.0
15
30
°C/°F
dE/P1
EL
8/46
6
30
0
it
30
0
n
0.0
o-n
10
10
FSt
ALc
Set point
Differential
Minimum set point
Maximum set point
Thermostat probe calibration
Evaporator probe presence
Evaporator probe calibration
Outputs delay at start up
Anti-short cycle delay
Continuos cycle duration
Compressor ON time with faulty probe
Compressor OFF time with faulty probe
Temperature measurement unit
Resolution
Probe displayed
Defrost type
Defrost termination temperature
Interval between defrost cycles
(Maximum) length for defrost
Start defrost delay
Displaying during defrost
MAX display delay after defrost
Draining time
First defrost after startup
Defrost delay after fast freezing
Fan operating mode
Fan delay after defrost
Differential of temperature for forced
activation of fans
Fan stop temperature
Temperat. alarms configuration
ALU
ALL
ALd
dAO
i1P
i1F
MAXIMUM temperature alarm
Minimum temperature alarm
Temperature alarm delay
Delay of temperature alarm at start up
Digital input polarity
Digital input configuration
P1;P2
EL=el. heater; in= hot gas
-50 ÷ 50 °C
1 ÷ 120 ore
0 ÷ 255 min
0÷99min
rt, it, SEt, DEF
0 ÷ 255 min
0÷120 min
n=after IdF; y=immed.
0 ÷ 23h e 50’
C-n, o-n, C-y, o-Y
0÷255min
0÷50°C
-50÷50°C/-58÷122°F
rE= related to set;
Ab = absolute
Set÷110.0°C; Set÷230°F
-50.0°C÷Set/ -58°F÷Set
2/35
Ab
110/230
-50/-58
15
0 ÷ 255 min
1.30
0 ÷ 23h e 50’
oP=opening;CL=closing
CL
EAL=extern. alarm; bAL=lock regulation;
dor
PAL=press. switch; dor=door switch;
dEF=defrost; LHt=disabled; Htr = heating
- cooling
did Digital input alarm delay
0÷255min
0 ÷15
Nps Number of activation of pressure switch
odc Compressor and fan status when open no = normal; Fan = Fan OFF; CPr =
Compr. OFF; F_C = Compr & fan OFF
door:
Ptc; ntc
PbC Kind of probe
-dP1 Room probe display
-dP2 Evaporator probe display
rEL Software release
-Ptb Map code
--
15
15
F-C
ntc/Ptc
--2.7
-
R oo m
E va p.
8(3)A
dAF
Fnc
Fnd
Fct
in=integer; dE= dec.point
Hidden parameters
14.1 XR60C – 12VAC/DV OR 24 VAC/DV
a
Name
Set
Hy
LS
US
Ot
P2P
OE
OdS
AC
CCt
COn
COF
CF
rES
Lod
tdF
dtE
IdF
MdF
dSd
dFd
dAd
Fdt
dPo
Housing: self extinguishing ABS.
Case: XR60C frontal 32x74 mm; depth 60mm;
Mounting: XR60C panel mounting in a 71x29mm panel cut-out
Protection: IP20; Frontal protection: IP65 with frontal gasket RG-C (optional).
Connections: Screw terminal block ≤ 2,5 mm2 wiring.
Power supply: according to the model: 12Vac/dc, ±10%; 24Vac/dc, ±10%; 230Vac
±10%, 50/60Hz, 110Vac ±10%, 50/60Hz
Power absorption: 3VA max
Display: 3 digits, red LED, 14,2 mm high.
Inputs: 2 NTC or PTC probes.
Digital input: free contact
Relay outputs
compressor: SPST relay 8(3) A, 250Vac or SPST relay 16(6)A; 250Vac
defrost: SPDT relay 8(3) A, 250Vac
fan: SPST relay 8(3) A, 250Vac
Data storing: on the non-volatile memory (EEPROM).
Kind of action: 1B; Pollution grade: normal;Software class: A.
Operating temperature: 0÷60 °C;Storage temperature: -30÷85 °C.
Relative humidity: 20÷85% (no condensing)
Measuring and regulation range: NTC probe: -40÷110°C (-40÷230°F);
PTC probe: -50÷150°C (-58÷302°F)
Resolution: 0,1 °C or 1°C or 1 °F (selectable).
Accuracy (ambient temp. 25°C): ±0,7 °C ±1 digit
Max 8(3)A250V
16A
Label
Line
Def
N.C.
Hot Key
Fan Comp
Dixell s.r.l. Z.I. Via dell’Industria, 27
32010 Pieve d’Alpago (BL) ITALY
tel. +39 - 0437 - 98 33 - fax +39 - 0437 - 98 93 13
NOTE: The compressor relay is 8(3)A or 16(6)A according to the model.
24Vac/dc supply: connect to the terminals 7 and 8.
(PDLO GL[HOO#GL[HOOFRP KWWSZZZGL[HOOFRP
1592007250 XR60C GB r1.1 27.10.2003.doc
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4/4

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Key Features

  • microprocessor based controller
  • suitable for medium or low temperature
  • three relay outputs
  • two NTC or PTC probe inputs
  • configurable through special parameters
  • temperature alarm and its duration recording (HACCP)
  • digital input
  • door switch input
  • pressure switch
  • hot key support

Frequently Answers and Questions

What is the purpose of the "FSt" parameter?
The "FSt" parameter sets the temperature, detected by the evaporator probe, above which the fans are always OFF. This is used to make sure circulation of air only if this temperature is lower than set in "FSt".
How do I start a manual defrost?
To start a manual defrost, press and hold the “DEF” key for more than 2 seconds.
What is the function of the "Fct" parameter?
The "Fct" parameter manages a function designed to avoid short cycles of fans, that could happen when the controller is switched on or after a defrost, when the room air warms the evaporator. If the difference of temperature between the evaporator and the room probes is more than the value of the Fct parameter, the fans are switched on.
What is the "CCt" parameter?
The "CCt" parameter allows you to set the length of the continuous cycle: the compressor stays on without interruption for the CCt time. This can be useful, for instance, when the room is filled with new products.
How to I unlock the keyboard?
To unlock the keyboard, press and hold the 9 and 8 keys together for more than 3 seconds until the “Pon” message is displayed.
How to program an instrument using a hot key (Download)?
1. Turn OFF the instrument. 2. Insert a programmed “Hot Key” into the 5 PIN receptacle and then turn the Controller ON. 3. Automatically the parameter list of the “Hot Key” is downloaded into the Controller memory, the “doL” message is blinking followed a by flashing “End”. 4. After 10 seconds the instrument will restart working with the new parameters. 5. Remove the “Hot Key”.

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