6
MANUAL OF THERMOSTAT XT110C
Please read this manual before using
1.AVERTISSEMENT
•
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
with a
detailed description of the fault.
2.GENERAL DESCRIPTION
The XT110C and XT111C are single-stage ON/OFF controllers
for temperature, humidity and pressure applications with direct
or inverse action, user-selectable. 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.FRONT PANEL COMMAND
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 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
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.
3.1 Use of LEDs
Each LED function is described in the following table :
LED MODE
FUNCTION
ON
Output 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”
3.2 To see the set point
Push and release the
SET
key to see the Set point
value
To come back to the normal display push again the
SET
key or
wait 10s.
3.3 To change the set point
Hold pushed the
SET
key for 3s to change the Set
point value
The value of the set point will be displayed and the LED1 & 2
start blinking
To change the Set value push the
o
or
n
arrows within 10s.
To memorise the new set point value push the
SET
key again
or wait 10s.
3.4 To enter the parameters list PR1
Push for 3s the
SET + n
keys (LED1 & 2 start
blinking).
The controller will display the first parameter present in the Pr1
menu.
3.5 How to change a parameter
- Enter the
Programming mode
- Select the required parameter.
- Press the “
SET
” key to display its value.
- Use “
UP
” or “
DOWN
” to change its value.
- 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.
3.6 How to lock the keyboard
Keep pressed together for more than 3s the the
o
and
n
keys,
till the “
POF
” message will be displayed.
3.7 To unlock the keyboard
Keep pressed together for more than 3s the the
o
and
n
keys,
till the “
Pon
” message will be displayed.
4.ALARM SIGNALS
Message Cause
Outputs
“PFo”
Probe broken or
absence
Alarm output ON; Output
according to parameter
“So1”
“PFc”
Probe short circuited
Alarm output ON; Output
according to parameter
“So1”
“HA”
Maximum alarm
Alarm output ON; Other
outputs unchanged.
“LA”
Minimum alarm
Alarm output ON; Other
outputs unchanged.
“EAL”
External alarm
Output unchanged.
“bAL”
Serious external alarm Output OFF.
5. PARAMETERS PROGRAMS IN FACTORY
Parameter 40°C 80°C
Set 40
80
Hy1 -1
-1
LS1 20
20
US1 50
90
S1C In
In
Ac 0
0
OPb 25
25
