dixell XR110C Wiring diagram

Dixell
Installing and Operating Instructions
rel.1.0 - cod. 1592008200
1592008200 XR110C GB XR110C with built in RS485 1/4
XR110C with built-in RS485
CONTENTS
1. GENERAL WARNING _________________________________________________________________ 1
2. General description ___________________________________________________________________ 1
3. Controlling loads______________________________________________________________________ 1
4. Front panel commands_________________________________________________________________1
5. List of Parameters ____________________________________________________________________2
6. Digital inputs_________________________________________________________________________3
7. Installation and mounting_______________________________________________________________3
8. Electrical connections__________________________________________________________________3
9. RS485 Serial communication____________________________________________________________ 3
10. Use of the programming “HOT KEY “ _____________________________________________________3
11. Alarm signals ________________________________________________________________________3
12. Technical data _______________________________________________________________________4
13. Connections_________________________________________________________________________4
14. Default setting values__________________________________________________________________4
1. GENERAL WARNING
1.1 PLEASE READ BEFORE USING THIS MANUAL
•This manual is part of the product and should be kept near the instrument for easy
and quick reference.
•The instrument shall not be used for purposes different from those described
hereunder. It cannot be used as a safety device.
•Check the application limits before proceeding.
1.2 SAFETY PRECAUTIONS
•Check the supply voltage is correct before connecting the instrument.
•Do not expose to water or moisture: use the controller only within the operating limits
avoiding sudden temperature changes with high atmospheric humidity to prevent
formation of condensation
•Warning: disconnect all electrical connections before any kind of maintenance.
•Fit the probe where it is not accessible by the End User. The instrument must not be
opened.
•In case of failure or faulty operation send the instrument back to the distributor or to
“Dixell s.r.l.” (see address) with a detailed description of the fault.
•Consider the maximum current which can be applied to each relay (see Technical
Data).
•Ensure that the wires for probes, loads and the power supply are separated and far
enough from each other, without crossing or intertwining.
•In case of applications in industrial environments, the use of mains filters (our mod.
FT1) in parallel with inductive loads could be useful.
2. GENERAL DESCRIPTION
XR110C is connectable to the XJ500 monitoring system through the two terminals of serial
port RS485.
Model XR110C, 32 x 74 mm format, is a single stage temperature controller suitable for
applications in the field of refrigeration or heating. It’s provided with a relay output and a
PTC or NTC probe inputs configurable by the User.
3. CONTROLLING LOADS
3.1 TYPE OF REGULATION
The regulation is performed according to the temperature measured by the probe.
The instruments are provided with the CH programmable parameter which enables the
user to set the regulation both for heating or cooling applications:
· CH = cL : cooling applications
· CH = Ht : heating applications
3.2 CH=CL : COOLING
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.
3.3 CH = HT: HEATING
The Hy value is automatically set under 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.
N.B. :In case of fault in the thermostat probe the start and stop of the compressor are
timed through parameters “COn” and “COF”.
4. FRONT PANEL COMMANDS
:To display target set point; in programming mode it selects a parameter or
confirm an operation.
By holding it pressed for 5s the instrument Stand By started( If it is enable)
By holding it pressed for 3s when max or min temperature is displayed it will
be erased.
:To see the max. stored temperature; in programming mode it browses the
parameter codes or increases the displayed value. By holding it pressed for
3s the fast freezing cycle is started
:To see the min stored temperature; in programming mode it browses the
parameter codes or decreases the displayed value. By holding it pressed for
3s the auxiliary relay is switched ON or OFF ( If it is configured)
KEY COMBINATIONS:
+ 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 Function
ON Compressor enabled
FLASHING - Programming Phase (flashing with LED 1)
- Anti-short cycle delay enabled
LED1 FLASHING Programming Phase (flashing with LED )
ON - ALARM signal
- In “Pr2” indicates the parameter is also present in “Pr1”
4.2 HOW TO SEE THE MIN TEMPERATURE
1. Press and release the nkey.
2. The “Lo” message will be displayed followed by the minimum
temperature recorded.
3. By pressing the nkey or waiting for 5s the normal display will be
restored.
4.3 HOW TO SEE THE MAX TEMPERATURE
1. Press and release the okey.
2. The “Hi” message will be displayed followed by the maximum
temperature recorded.
3. By pressing the okey or waiting for 5s the normal display will be
restored.
4.4 HOW TO RESET THE MAX AND MIN TEMPERATURE RECORDED
To reset the stored temperature, when max or min temperature is displayed :
LED 1

Dixell
Installing and Operating Instructions
rel.1.0 - cod. 1592008200
1592008200 XR110C GB XR110C with built in RS485 2/4
1. Press SET key until “rST” label starts blinking.
4.5 HOW TO SEE THE SET POINT
1. Push and immediately release the SET key: the display will show the Set
point value;
2. Push and immediately release the SET key or wait for 5 seconds to
display the probe value again.
4.6 HOW TO CHANGE THE SETPOINT
1. Push the SET key for 3 seconds to change the Set point value;
2. The value of the set point will be displayed; led and LED 1 start
blinking;
3. To change the Set value push the o or narrows within 10s.
4. To memorise the new set point value push the SET key again or wait 10s.
4.7 TO ENTER IN PARAMETERS LIST “PR1”
To enter the parameter list “Pr1” (user accessible parameters) operate as
follows:
1. Enter the Programming mode by pressing the Set and UP key for few
seconds (LED 1 and led start blinking).
2. The instrument will show the first parameter present in “Pr1”
4.8 TO ENTER IN PARAMETERS LIST “PR2”
To enter in the parameter list “Pr2” (installer level) operate as follows:
To access parameters in “Pr2” a security code is required.
1. To enter in “Pr1” level.
2. Select “Pr2” parameter and press the “SET” key.
3. The “PAS” flashing message is displayed, shortly followed by “0 - -” with a flashing
zero.
4. Use oor nto input the security code in the flashing digit; confirm the figure by
pressing “SET”. The security code is “321“.
5. If the security code is correct the access to “Pr2” is enabled by pressing “SET” on the
last digit.
NOTE: each parameter in “Pr2” can be removed or put into “Pr1” (user level) by pressing
“SET” + n. When a parameter is present in “Pr1” LED is on.
4.9 HOW TO CHANGE THE PARAMETER VALUE
To change the parameter’s value operate as follows:
1. Enter the Programming mode.
2. Select the required parameter with nor o.
3. Press the “SET” key to display its value ( and LED 1 starts blinking).
4. Use oor nto 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 new programming is stored even when the procedure is exited by waiting the
time-out.
4.10 HOW TO LOCK THE KEYBOARD
1. Keep pressed for more than 3 s the oand nkeys.
2. The “POF” message will be displayed and the keyboard is locked. At this point it is
only possible the viewing of the set point or the MAX o Min temperature stored.
4.10.1 TO UNLOCK THE KEYBOARD
Keep pressed together for more than 3s the oand nkeys.
4.11 STAND BY FUNCTION
If the stand-by function is enabled (Onf = 1), by holding pressed the SET key for 5s., the
instrument shows “OFF”. The stand-by function switches OFF all the relays and stops the
regulation. During the stand by if a XJ500 is connected, it does not record the instrument
data and alarms.
N.B. When the instrument is under Stand-by, all the relays are under power supply.
Don’t connect any loads to the normal closed contact of the relays.
5. LIST OF PARAMETERS
REGULATION
Hy Differential: (0,2°C ÷30,0°C/ 1°F÷54°F): Intervention differential for set point,
always positive. Compressor Cut IN is Set Point Plus Differential (Hy). Compressor
Cut OUT is when the temperature reaches the set point.
LS Minimum set point limit: (- 50.0°C÷SET/ -58°F÷SET) Sets the minimum acceptable
value for the set point.
US Maximum set point limit: (SET÷ 150°C / SET ÷302°F) Set the maximum
acceptable value for set point.
OdSOutputs activation delay at start up: (0÷255 min) 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. (AUX and Light can work)
AC Anti-short cycle delay: (0÷30 min) interval between the compressor stop and the
following restart.
CCt Thermostat override: (0min ÷23h 50min) allows to set the length of the continuous
cycle. 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.
CH Type of regulation: cL = cooling; Ht = heating.
DISPLAY
CF Temperature measurement unit: °C = Celsius; °F = Fahrenheit . When the
measurement unit is changed the SET point and the values of the regulation
parameters have to be modified
rES Resolution (for °C): (in = 1°C; de = 0,1°C) allows decimal point display.
de = 0,1°C
in = 1 °C
ALARMS
ALCTemperature alarm configuration
rE = High and Low alarms related to Set Point
Ab = High and low alarms related to the absolute temperature.
ALUHigh temperature alarm setting:
ALC= rE, 0 ÷50°C or 90°F
ALC= Ab, ALL ÷110°C or 230°F
when this temperature is reached and after the ALd delay time the HA alarm is
enabled.
ALLLow temperature alarm setting:
ALC = rE , 0 ÷50 °C or 90°F
ALC = Ab , - 50°C or -58°F ÷ALU
when this temperature is reached and after the ALd delay time, the LA alarm is
enabled,.
AFHTemperature alarm and fan differential: (0,1÷25,5°C; 1÷45°F) Intervention
differential for temperature alarm set point and fan regulation set point, always
positive.
ALdTemperature alarm delay: (0÷255 min) time interval between the detection of an
alarm condition and the corresponding alarm signalling.
dAO Delay of temperature alarm at start-up:(0min÷23h 50min) time interval between
the detection of the temperature alarm condition after the instrument power on and
the alarm signalling.
dot Delay of temperature alarm after closing the door : (0÷255 min) Time delay to
signal the temperature alarm condition after closing the door.
doA Open door alarm delay:(0÷255 min) delay between the detection of the open door
condition and its alarm signalling: the flashing message “dA” is displayed.
nPS Pressure switch number: (0 ÷15) Number of activation of the pressure switch,
during the “did” interval, before signalling the alarm event(I2F= PAL).
PROBE INPUTS
Ot Thermostat probe calibration: (-12.0÷12.0°C/ -21÷21°F) allows to adjust possible
offset of the thermostat probe.
HESTemperature increase during the Energy Saving cycle : (-30,0°C ÷30,0°C / -
22÷86°F) sets the increasing value ofthe set point during the Energy Saving cycle.
DIGITAL INPUTS
odc Compressor and fan status when open door:

Dixell
Installing and Operating Instructions
rel.1.0 - cod. 1592008200
1592008200 XR110C GB XR110C with built in RS485 3/4
no = normal;
Fan = Fan OFF;
CPr = Compressor OFF;
F_C = Compressor and fan OFF.
I2P Configurable digital input polarity:
CL : the digital input is activated by closing the contact;
OP : the digital input is activated by opening the contact
I2F Digital input operating mode: configure the digital input function:
EAL = generic alarm;
bAL = serious alarm mode;
PAL = Pressure switch;
dFr = Start defrost;
AUS = Relay AUX actuation;
Es = Energy Saving;
onF = remote On/OFF.
dor = door switch
did Time interval/delay for digital input alarm:(0÷255 min.) Time interval to calculate
the number of the pressure switch activation when I2F=PAL. If I2F=EAL or bAL
(external alarms), “did” parameter defines the time delay between the detection and
the successive signalling of the alarm.
OTHER
Adr RS485 serial address (1÷247): Identifies the instrument address when connected to
a ModBUS compatible monitoring system.
PbC Probe type selection: (NTC or PTC) selectthe type of probe used
OnF Stanb-by function:
0= Stand-by function not enabled.
1= Stand-by function enabled (under SET key control).
Rel Release software: (read only) Software version of the microprocessor.
Ptb Parameter table: (read only) it shows the original code of the dIXEL parameter map.
Prd Probes display: (read only) display the temperature values of the evaporator probe
Pb2 and the auxiliary probe Pb3.
Pr2 Access to the protected parameter list (read only).
6. DIGITAL INPUTS
The XR110C can support up to 2 free contact digital inputs. One is always configured as
door switch, the second is programmable in seven different configurations by the “I2F”
parameter.
6.1 CONFIGURABLE INPUT - GENERIC ALARM (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.
6.2 CONFIGURABLE INPUT - SERIOUS ALARM MODE (BAL)
When the digital input is activated, the unit will wait for “did” delay before signalling the
“BAL” alarm message. The relay outputs are switched OFF. The alarm will stop as soon
as the digital input is de-activated.
6.3 CONFIGURABLE INPUT - PRESSURE SWITCH (PAL)
If during the interval time set by “did” parameter, the pressure switch has reached the
number of activation of the “nPS” parameter, the “PAL” pressure alarm message will be
displayed. The compressor and the regulation are stopped. When the digital input is ON
the compressor is always OFF.
6.4 CONFIGURABLE INPUT - START DEFROST (DFR)
It executes 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.
6.5 CONFIGURABLE INPUT - ENERGY SAVING (ES)
The Energy Saving function allows to change the set point value as the result of the SET+
HES (parameter) sum. This function is enabled until the digital inputis activated.
6.6 CONFIGURABLE INPUT - REMOTE ON/OFF (ONF)
This function allows to switch ON and OFF the instrument.
6.7 CONFIGURABLE INPUT - DOOR SWITCH (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 “dOA”, the alarm
output is enabled and the display shows the message “dA”. The alarm stops as soon as
the external digital input is disabled again. During this time and then for the delay “dot”
after closing the door, the high and low temperature alarms are disabled.
6.8 DIGITAL INPUTS POLARITY
The digital inputs polarity depends on “I1P” and “I2P” parameters.
CL : the digital input is activated by closing the contact.
OP : the digital input is activated by opening the contact
7. INSTALLATION AND MOUNTING
Instruments XR110C shall be mounted on panel, in a 29x71 mm hole, and fixed using the
special bracket supplied. 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.
8. ELECTRICAL CONNECTIONS
The instruments are 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.
8.1 PROBE CONNECTION
The probe 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.
9. RS485 SERIAL COMMUNICATION
The RS485 serial communication port allows to connect the unit, by means of a simple 2
wires shielded cable, to a network line ModBUS-RTU compatible as the dIXEL monitoring
system XJ500 (Version 3.2).
10. USE OF THE PROGRAMMING “HOT KEY “
The unit can UPLOAD or DOWNLOAD the parameter list from its own E2 internal memory
to the “Hot Key” and vice-versa.
10.1 DOWNLOAD (FROM THE “HOT KEY” TO THE INSTRUMENT)
1. Turn OFF the instrument by means of the ON/OFF key, remove the TTL serial cable
if present, insert the “Hot Key” and then turn the Controller ON.
2. Automatically the parameter list of the “Hot Key” is downloaded into the Controller
memory, the “DoL” message is blinking. After 10 seconds the instrument will restart
working with the new parameters.
3. Turn OFF the instrument remove the “Hot Key”, plug in the TTL serial cable, then
turn it ON again.
At the end of the data transfer phase the instrument displays the following messages:
“end “ for right programming. The instrument starts regularly with the new programming.
“err” 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.
10.2 UPLOAD (FROM THE INSTRUMENT TO THE “HOT KEY”)
1. Turn OFF the instrument by means of the ON/OFF key and remove the TTL serial
cable if present; then turn it ON again.
2. When the unit is ON, insert the “Hot key” and push okey; the "uPL" message
appears.
3. Push “SET” key to start the UPLOAD; the “uPL” message is blinking.
4. Turn OFF the instrument remove the “Hot Key”, plug in the TTL serial cable, then
turn it ON again.
At the end of the data transfer phase the instrument displays the following messages:
“end “ for right programming.
“err” for failed programming. In this case push “SET” key if you want to restart the
programming again or remove the not programmed “Hot key”.
11. ALARM SIGNALS
Message
Cause Outputs
“P1” Thermostat probe failure
A
larm output ON; Compressor output
according to parameters “COn” and “COF”
“HA” Maximum temperature alarm Alarm output ON; Other outputs unchanged
“LA” Minimum temperature alarm Alarm outputON; Other outputs unchanged
“EE” Data or memory failure Alarm output ON; Other outputs unchanged
“dA” Door switch alarm Alarm output ON; Other outputs unchanged
“EAL” External alarm Alarm output ON; Other outputs unchanged
“BAL” Serious external alarm Alarm output ON; Other outputs OFF
“PAL” Pressure switch alarm Alarm output ON; Other outputs OFF
The alarm message is displayed until the alarm condition is recovery.
All the alarm messages are showed alternating with the room temperature except for the
“P1” which is flashing.
To reset the “EE” alarm and restart the normal functioning press any key, the “rSt”
message is displayed for about 3s.
11.1 “EE” ALARM
The dIXEL instruments are provided with an internal check for the data integrity. Alarm
“EE” flashes when a failure in the memory data occurs. In such cases the alarm output is
enabled.
11.2 ALARM RECOVERY
Probe alarm : “P1” (probe faulty) is automatically stop 10s 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 or when the defrost starts.

Dixell
Installing and Operating Instructions
rel.1.0 - cod. 1592008200
1592008200 XR110C GB XR110C with built in RS485 4/4
Door switch alarm “dA” stop as soon as the door is closed.
External alarms “EAL”, “BAL” stop as soon as the external digital input is disabled “PAL”
alarm is recovered by switching OFF the instrument.
12. TECHNICAL DATA
Housing: self extinguishing ABS.
Case: frontal 32x74 mm; depth 70mm
Mounting: panel mounting in a 71x29 mm panel cut-out.
Frontal protection: IP65
Connections: Screw terminal block ≤2,5 mm2wiring.
Power supply: 230Vac (opt.12Vac/dc), ±10%, 50/60Hz
Power absorption: 3VA max.
Display: 3 digits, red LED, 14,2 mm high.
Inputs: 1 PTC or NTC configurable.
Relay output: SPDT relay 8(3)A, 250Vac
Other output: buzzer for an acoustic signal of alarms
Serial Output : RS485 serial communication port with ModBUS-RTU protocol
Data storing: on the non-volatile memory (EEPROM).
Kind of action: 1B.
Pollution grade: normal
Software class: A.
Operating temperature: 0÷60 °C.
Relative humidity: 20÷85% (not condensing)
Storage temperature: -30÷85 °C.
Measuring and regulation range:
PTC: -50÷150°C (-58÷302°F)
NTC: -50÷110°C (-58÷230°F)
Resolution: 0,1 °C or 1 °F (selectable).
Accuracy of the controller at 25°C: range -40÷50°C (-40÷122°F): ±0,3 °C ±1 digit
13. CONNECTIONS
13.1 XR110C: 12VAC/DC; COMPRESS. 8A
13.2 XR110C: 12VAC/DC; COMPRESS. 20A
13.3 XR110C: 230VAC; COMPRESS. 8A
14. DEFAULT SETTING VALUES
Label Name Limits Default
XR110C
REGULATION °C/°F
Set Set point LS÷US 5 Pr1
Hy Differential 0,1÷25,5 °C / 1÷45°F 2 Pr1
LS Minimum set point -50,0°C÷SET / -
58°F÷SET -50 Pr2
US Maximum set point SET ÷ 150°C / SET ÷
230°F 120 Pr2
OdS Outputs activation delay at start up 0÷255 min. 0 Pr2
AC Anti-short cycle delay 0÷30 min. 1 Pr1
CCt Compressor ON time during fast
freezing 0 ÷ 23h 50 min. 0 Pr2
COn Compressor ON time with faulty
probe 0÷255 min. 15 Pr2
COF Compressor OFF time with faulty
probe 0÷255 min. 30 Pr2
CH Kind of action (cold / Hot) cL ÷ Ht cL Pr2
DISPLAY
CF Temperature measurement unit °C ÷ °F °C Pr2
rES Resolution (integer/decimal point) in ÷ de de Pr1
ALARMS
ALC Temperature alarms configuration rE÷Ab rE Pr2
ALU MAXIMUM temperature alarm -50,0÷110°C/
-58÷230°F 10 Pr1
ALL minimum temperature alarm -50,0÷110°C/ -
58÷230°F 10 Pr1
AFH Temperature alarm and fan
differential 0,1÷25,5 °C / 1÷45°F
2 Pr2
ALd Temperature alarm delay 0÷255 min. 15 Pr2
dAO Delay of temperature alarm at start
up 0 ÷ 23h 50 min. 1,3 Pr2
dot Delay of temperature alarm after
closing the door 0÷255 min. 15 Pr2
dOA Open door alarm delay 0÷255 min. 15 Pr2
nPS Pressure switch activation number 0÷15 0 Pr2
ANALOGUE INPUTS
Ot Thermostat probe calibration -12,0÷12,0°C / -
21÷21°F 0 Pr1
HES Temperature increase during the
Energy Saving cycle -30÷30°C / -22÷86°F 0 Pr2
DIGITAL INPUTS
Odc Open door control no, Fan, CPr, F_C no Pr2
I2P Configurable digital input polarity CL÷OP CL Pr2
i2F Digital input configuration EAL, bAL, PAL, dFr,
AuS, ES, OnF EAL Pr2
dId Digital input alarm delay 0÷255 min. 5 Pr2
OTHER
Adr Serial address 1÷247 1 Pr1
PbC Probe type selection NTC ÷ PTC NTC Pr2
OnF On / Off function enabled n ÷ y n Pr2
rEL Software release - - - 2.0 Pr2
Ptb Map code - - - - - - Pr2
Prd Probes display Pb1÷Pb3 - - - Pr2
Pr2 Access parameter list - - - Pr2
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
E-mail: [e-mail] - http://www.dixell.com