dixell XR110C Installing And Operating Instructions

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 n key.

2. The “Lo” message will be displayed followed by the minimum
temperature recorded.

3. By pressing the n key or waiting for 5s the normal display will be

restored.

4.3 HOW TO SEE THE MAX TEMPERATURE

1. Press and release the o key.

2. The “Hi” message will be displayed followed by the maximum
temperature recorded.

3. By pressing the o key 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 n arrows 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 o or n to 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 n or o.

3. Press the “SET” key to display its value (

and LED 1 starts blinking).

4. Use o or n 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 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 o and n keys.

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 o and n keys.

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.

OdS Outputs 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
ALC Temperature alarm configuration

rE = High and Low alarms related to Set Point
Ab = High and low alarms related to the absolute temperature.

ALU High 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.
ALL Low 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,.
AFH Temperature 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.
ALd Temperature 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.
HES Temperature increase during the Energy Saving cycle : (-30,0°C

÷ 30,0°C / -

22÷86°F) sets the increasing value of the set point during the Energy Saving cycle.

DIGITAL INPUTS
odc Compressor and fan status when open door: