dixell XT130C, XT131C, XT130D: XT131D Installing And Operating Instructions
dIXEL
Installing and Operating Instructions
XT130C - XT131C - XT130D - XT131D
Dead band digital controllers
with multi probe input
Reference manual: “ 1592002230 XT130-131C GB R.1.0 03.02.03.doc”
All the modifications are in red colour.
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
• Check the supply voltage is correct before connecting the instrument.
• Do not expose to water or moisture: use t he controller only withi n the operating limit s avoiding sudden
• Warning: disconnect all electrical connections before any kind of maintenance.
• The instrument must not be opened.
• In case of failure or faulty operation send the instrument back to the distributor or to “DIXELL S.p.A”
• Consider the maximum current which can be applied to each relay (see Technical Data).
• Ensure that the wires for probes, loads and the power supply are separated and far enough from each
• In case of applications in industrial environments, the use of mains fil ters (our mod. FT1) in parallel with
2. GENERAL DESCRIPTION
The XT130C, XT131C and XT130D, XT131D (DIN RAIL format) are dead band ON/OFF
controllers for temperature, humidity and pressure applications. They have been developed
and designed for applications in the industrial sector where the process variable must be
maintained constant within a fixed band. The analogue input type can be set by parameter
between the following, according to the model:
- PTC, NTC;
- PTC, NTC, Pt100, Thermocouple J, K, S;
- 4÷20mA, 0÷1V, 0÷10V.
3. FIRST INSTALLATION
3.1 PROBE SETTING
3.1.1 How to set the probe.
1. Enter the programming menu by pressing the SET+ n for 3s.
2. Select the Pbc (Probe configuration) parameter and push the SET key.
3. Set the kind of probe:
4. Push the SET key to confirm it.
5. Switch the controller off and on again.
NOTE: Before proceeding check and, if necessary; set with appropriate values the Minimum
Set Points (LS1 e LS2) and Maximum Set Points (US1 e US2). See also the paragraphs
concerning the programming.
4. REGULATIONS
• Two stage ON/OFF control with DEAD BAND
• Relay 1 output at inverse action (heating, humidifying, increasing pressure): load 1 CUT IN
is “SET-db”, load 1 CUT OUT is when the process variable reaches the set point.
• Relay 2 output at direct action (cooling, de- humidifying, decreasing pressure): load 2 CUT
IN is “SET+db”, load 2 CUT OUT is when the process variable reaches the set point.
SAFETY PRECAUTIONS
temperature changes with high atmospheric humidity to prevent formation of condensation
(see address) with a detailed description of the fault.
other, without crossing or intertwining.
inductive loads could be useful.
The pre-set probe type is written on the label of the
instrument, see picture. If it is different from the probe that
has be used, set the probe following procedure below.
a. Controller for temperature: Pt= Pt100, J = J thermocouple, c = K
thermocouple, S = S thermocouple; Ptc = PTC; ntc = ntc.
b. Controller with current or voltage inputs: cur=4÷20mA, 0-1= 0÷1V, 10=
0÷10V
1592002231
5. FRONT PANEL COMMANDS
SET: To display and modify target
set point; in programming mode
it selects a parameter or
confirm an operation.
TO SWITCH THE
INSTRUMENT ON/OFF: If the
function is enabled (par.
onF=yES), by pressing the SET
key for more than 4s the
KEY COMBINATIONS:
o + n To lock & unlock the keyboard.
SET + n To enter in programming mode.
SET + o To return to the room temperature display.
LED2
E.S.
LED1
controller is switched OFF. To
switch the instrument on again
press the SET key.
o
UP: in programming mode it
browses the parameter codes
or increases the displayed
value. Hold it pressed for a
faster change
n DOWN: in programming mode it
browses the parameter codes
or decreases the displayed
value. Hold it pressed for a
faster change
5.1 USE OF LEDS
A series of light points on the front panels is used to monitor the loads controlled by the
instrument. Each LED function is described in the following table.
LED MODE FUNCTION
ON Output1 relay enabled
ON Output2 relay enabled
LED1 Flashing - Programming Phase (flashing with LED2)
LED2 Flashing - Programming Phase (flashing with LED1)
E.S.
ON Energy saving activated by digital input
ON - ALARM signal
- In “Pr2” indicates the parameter is also present in “Pr1”
5.2 TO SEE THE SETPOINT
1. Push and release the SET key to see the Set point value;
2. To come back to the normal display push again the SET key or wait 10s.
5.3 TO CHANGE THE SETPOINT
1. Hold pushed the SET key for 3s to change the Set point value;
2. The value of the set point will be displayed and the LED1 & 2 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.
5.4 TO ENTER THE PARAMETERS LIST “PR1
To enter the parameter list “Pr1” (user accessible parameters) operate as follows:
1. Push for 3s the SET + n keys (LED1 & 2 start blinking).
2. The controller will display the first parameter present in the Pr1 menu..
5.5 TO ENTER THE PARAMETERS LIST “PR2”
The “Pr2” parameter list contains the configuration parameters. A security code is required to
enter it.
1. Enter the “Pr1” level, see above paragraph.
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.
Another possibility is the following:
After switching ON the instrument, within 30 seconds, push SET + n keys together for 3s:
the Pr2 menu will be entered.
FOR UPDATING 1592002231 XT130-131C-D GB R.1.0 15.12.2004 XT130C – XT131C - XT130D – XT131D 1/4
dIXEL
5.6 HOW TO MOVE A PARAMETER FROM THE “PR2” MENU TO “PR1” AND
VICEVERSA.
Each parameter present in “Pr2” MENU can be removed or put into “Pr1”, user level, by
pressing “SET + n”.
In “Pr2” when a parameter is present in “Pr1” the LED is on.
5.7 HOW TO CHANGE A PARAMETER
To change a parameter value operates as follows:
1. Enter the Programming mode
2. Select the required parameter.
3. Press the “SET” key to display its value.
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.
5.8 HOW TO LOCK THE KEYBOARD
1. Keep pressed for more than 3 s the the o and n keys.
2. 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
3. If a key is pressed more than 3s the “POF” message will be displayed.
5.9 TO UNLOCK THE KEYBOARD
Keep pressed together for more than 3s the the o and n keys, till the “Pon” message will
be displayed.
5.10 ON/OFF FUNCTION
TO SWITCH THE INSTRUMENT ON/OFF: If the function is enabled (par. onF=yES), by
pressing the SET key for more than 4s the controller is switched OFF. To switch the
instrument on again press the SET key.
6. PROBES AND MEASURING RANGE
Probe Down Scale Full Scale
NTC -40°C/-40°F 110°C / 230 °F
PTC -50°C / -58°F 150°C / 302°F
Pt100 -200°C / -328°F 600°C / 1112°F
TcK 0°C / 32°F 1300°C / 1999°F
TcJ 0°C / 32°F 600°C / 1112°F
TcS 0°C / 32°F 1400°C / 1999°F
7. LIST OF PARAMETERS
REGULATION
db dead band width: (0.1÷Full Scale) this is the band below and above the set point
beyond which the relay 1 respectively relay 2 are enabled. Once a output is enabled, it
remains ON until the set point is reached.
LS1 Minimum set point: (Down Sc.÷ Set) Sets the minimum acceptable value for the set
point.
US1 Maximum set point: (Set÷ Full Sc.) Sets the maximum acceptable value for set point.
AC Anti-short cycle delay: (0÷250 sec) Minimum time between the switching off and the
following switching on
on Minimum time a stage stays switched ON (0÷250 sec)
ono: Minimum time between 2 following switching ON of the same load (0÷120 min).
ALARMS
ALC Temperature alarms configuration: it determines if alarms are relative to set point or
referred to absolute values.
rE relative to set point; Ab absolute temperature
ALL Minimum alarm:
with ALC=rE: relative to set point, (0÷|Down Sc.-Set|) this value is subtracted from the
set point. The alarm signal is enabled when the probe values goes below the “SET-ALL”
value.
with ALC=Ab absolute value, minimum alarm is enabled when the probe values goes
below the “ALL” value.
ALU Maximum alarm:
with ALC=rE: alarm relative to set point, (0÷|Full Sc.-Set|) Maximum alarm is enabled
when the probe values exceeds the “SET+ALU” value.
with ALC=Ab: absolute alarm, (Set÷Full Sc.) Maximum alarm is enabled when the
probe values exceeds the “ALU” value.
ALH Differential for alarm recovery: (0,1÷Full scale) the alarm recovers when probe value
is higher than Alarm value + ALH.
ALd Alarm delay:(0÷999 min) time interval between t he detection of an alarm condition and
alarm signalling.
dAO Delay of alarm at start-up: (0÷23.5h) time interval between the detection of the alarm
condition after instrument power on and alarm signalling.
So1 Relay status with faulty probe: So1=oFF open; So1=on closed.
So2 Output 2 status with faulty probe: So1=oFF open; So1=on closed.
tbA Status of alarm relay after pushing a key. (XT131C/ XT131D only): oFF = relay
disabled; on = relay enabled.
AS Alarm relay configuration (XT131C only): cL = 4-6 terminals open with alarm; oP = 4-
6 terminals closed with alarm.
FOR UPDATING 1592002231 XT130-131C-D GB R.1.0 15.12.2004 XT130C – XT131C - XT130D – XT131D 2/4
Installing and Operating Instructions
LCI Start of scale, only with current or voltage input: (with rES = in, dE, cE: -
99.00÷199.00, with rES=irE -999÷1999) Adjustment of read out corresponding to 4mA
or 0V input signal.
UCI End of scale, only with current or voltage input (with rES = in, dE, cE: -
99.00÷199.00, with rES=irE -999÷1999) Adjustment of read out corresponding to 20mA
or 1V or 10V input signal.
oPb Probe calibration: (-999÷999) allows to adjust possible offset of the probe.
rES Resolution: select the resolution of the controller.
in= integer (-99÷199);
dEC= 1 decimal point (-99.0÷199.0),
cE = 2 digits after the decimal point (-99.00÷199.00) only for current or voltage input,
irE = integer, large scale (–999÷1999) only for current or voltage input.
WARNING: if rES is changed from “irE” to another value, all the parameters values
expressed in degrees: SET, db, LS1, uS1, ALL, ALu, ALH, LCi, uCi, LAo, uAo, HES,
have to be checked and set.
NOTE: the decimal point selection is not available on models with thermocouple input.
UdM Measurement unit: it depends on models:
for temperature:°C = Celsius; °F = Fahrenheit.
with 4÷20mA, 0÷1V, 0÷10V input : 0= °C; 1= °F, 2= %RH, 3=bar, 4=PSI, 5=no
measurement unit.
PbC Probe selection: it sets the kind of probe. It depends on models
for temperature NTC/PTC: Ptc = PTC; ntc = ntc.
for temperature standard: Pt= Pt100, J = J thermocouple, c = K thermocouple, S = S
thermocouple; Ptc = PTC; ntc = ntc.
with 4÷20mA, 0÷1V, 0÷10V input : cur=4÷20mA, 0-1= 0÷1V, 10= 0÷10V.
P3F Third wire presence for Pt100 probe: for using 2 or 3 wires Pt100 probes: no = 2 wires
probe; yES = 3 wires probe.
AOC Analog output configuration: (only for models with analog output)
AOC=Pb Probe reading. The analog output parameters LAO and UAO are indipendent
and correspond to the absolute read-out probe signal.
AOC=Er Probe - Set Point1. The analog output parameters LAO and UAO are related
to the difference between measurement of the probe and Set Point .
LAO Lower analog output limit: (only for models with analog output) minimum value of
temperature associated to the 4mA analog output. This value can be absolute or relative
to the Set Point by setting the AOC parameter.
UAO Upper analog output limit: (only for models with analog output) maximum value of
temperature associated to the 20mA analog output. This value can be absolute or
relative to the Set Point by setting the AOC parameter.
SAO Analog output safety with probe fault: (only for models with analog output)
determines what state the analog output should assume when the probe is faulty:
SAO = oFF; analog output = 4mA
SAO = on; analog output = 20mA.
HES Set point change during during the Energy Saving cycle : (Down Sc./Full Sc.) sets
the variation of the set point during the Energy Saving cycle.
i1F Digital input operating mode: configure the digital input function: c-H = NOT USED;
oFF = to switch the controller off.; AUS = Not used; HES = Energy Saving; EAL =
generic external alarm; bAL = serious external alarm: it switches off the loads.
i1P Digital input polarity:
CL : the digital input is activated by closing the contact;
OP : the digital input is activated by opening the contact
did Digital input alarm delay: (0÷255 min) delay between the detection of the external
alarm condition (i1F= EAL or i1F = bAL) and its signalling.
Adr RS485 serial address (0÷247) identifies the instrument within a control or supervising
system.
onF Swithching ON/OFF enabling from keyboard: (no = disabled; yES=enabled) It
permits the switching OFF of the instrument by pressing the SET key for more than 4s.
Ptb Parameters table: (read only) Shows the code of the parameters map.
rEL Software release: (read only)
Pr2 To access the Pr2 parameter programming menu.
8. INSTALLATION AND MOUNTING
Instrument XT130C and XT131C shall be mounted on vertical
panel, in a 29x71 mm hole, and fixed using the special brackets
supplied.
To obtain an IP65 protection grade use the front panel rubber
gasket (mod. RG-C). Instruments XT130D, XT131D, shall be
mounted on an omega DIN rail .
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.
9. ELECTRICAL CONNECTIONS
The instruments are provided with screw terminal block to connect cables with a cross section
up to 2,5 mm
instrument’s requirements. Separate the input connection 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.
PROBES AND DISPLAY
ANALOG OUTPUT - ONLY FOR XT130D, XT131D - OPTIONAL
DIGITAL INPUT
OTHER
2
. Before connecting cables make sure the power supply complies with the
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