malfunction of the device may cause dangerous situations for
persons, thing or animals, please remember that the plant has to
be equipped with additional devices which will guarantee safety.
3.2 - MECHANICAL MOUNTING
The instrument, in case 78 x 35 mm, is designed for flush-in panel
mounting. Make a hole 71 x 29 mm and insert the instrument, fixing
it with the provided special brackets. We recommend that the
gasket is mounted in order to obtain the front protection degree as
declared. Avoid placing the instrument in environments with very
high humidity levels or dirt that may create condensation or
introduction of conductive substances into the instrument. Ensure
adequate ventilation to the instrument and avoid installation in
containers that house devices which may overheat or which may
cause the instrument to function at a higher temperature than the
one permitted and declared. Connect the instrument as far away as
possible from sources of electromagnetic disturbances such as
motors, power relays, relays, solenoid valves, etc.
3.3 - ELECTRICAL CONNECTION
Carry out the electrical wiring by connecting only one wire to each
terminal, according to the following diagram, checking that the
power supply is the same as that indicated on the instrument and
that the load current absorption is no higher than the maximum
electricity current permitted. As the instrument is built-in equipment
with permanent connection inside housing, it is not equipped with
either switches or internal devices to protect against overload of
current: the installation will include an overload protection and a
two-phase circuit-breaker, placed as near as possible to the
instrument, and located in a position that can easily be reached by
the user and marked as instrument disconnecting device which
interrupts the power supply to the equipment. It is also
recommended that the supply of all the electrical circuits connected
to the instrument must be protect properly, using devices (ex.
fuses) proportionate to the circulating currents. It is strongly
recommended that cables with proper insulation, according to the
working voltages and temperatures, be used. Furthermore, the
input cable of the probe has to be kept separate from line voltage
wiring. If the input cable of the probe is screened, it has to be
connected to the ground with only one side. We recommend that a
check should be made that the parameters are those desired and
that the application functions correctly before connecting the
outputs to the actuators so as to avoid malfunctioning that may
cause irregularities in the plant that could cause damage to people,
things or animals.
3.4 - ELECTRICAL WIRING DIAGRAM
Inputs for Free voltage contacts model version.
19
7
OUT
161413 15
CNO
17
NC
18
213456
INPUTS
222120 2423
1089 1211
SUPPLY
di1 di2 di3 di4 di5 di6 di7 di8 di9 di10
Out: 8A-AC1(3A-AC3)/250VAC BUZZER
INTERNAL
X31L
Inputs for voltage signal (24 VAC/VDC) model version
di4
Out: 8A-AC1(3A-AC3)/250VAC
NC
16
OUT
4312
13
X31L
1514
C
di1 di2 di3
SUPPLY
di10
11
23
981065 7
1817
NO
19
INPUTS
2120 22
di6di5 di7 di8 di9
12
24
INTERNAL
BUZZER
24 VAC/VDC
(VDC: + -)
4 - FUNCTIONS
4.1 - INPUTS CONFIGURATION
Each signal is detected by the status change of an input that can
be configured to work through the following parameters:
“1.d” , “2.d”, “3.d” etc: determine the letter preceding the number
for that inputs must be reported as active signal. These parameters
are used to distinguish messages of some inputs like report alarms
(eg, A.01, A.02) from others that may signal errors (eg E.03, ""
E.04) or others who may signal functions in progress (eg F.05 ","
F.06)
“1.L” , “2.L”, “3.L” etc: determine the logic operating of the digital
inputs. If the input signal the event should contact closure
connected to the parameter should be programmed = no, vice
versa if you must report it to the opening of the contact connected
to the parameter should be programmed = nc.
“1.t” , “2.t”, “3.t” etc: allow to delay (up to a maximum of 99min
and 50sec.) the action of each inputs
“1.o” , “2.o”, “3.o” etc: Can establish whether the event should
turn on the internal buzzer or other alerts through output relay.
These parameters allow the buzzer to tie the activation and / or
relay output to some reports only considered serious (eg. alarms or
errors) that do not require other reports (eg. reports of functioning
or minor anomalies).
Parameters can be programmed:
= 0 - no signal
= 1 - signal only by buzzer
= 2 - signal only by output
= 3 - signal by buzzer and by output
“1.A” , “2.A”, “3.A” etc: Can establish whether the reporting on
the event should be memorized and therefore remain active even
when the digital input is deactivated. When an event is memorized
the label signal is flashing to indicate the condition of memorized
event.
4.2 - DISPLAY OPERATION
Through par. "t.dS" it’s possible to set the standard display
visualization with no Alarms/events signal.
If programmed = oF, the display visualization with no
Alarms/events signal is off except the separationled between letter
and number.
If programmed = no.A display in the absence of Alarms/events
signal showing the label “no.A”.
If one event is active, the display always shows only the message
scheduled to report.
If more events are active led +AL is lit to indicate that there are
more alerts the operator and the display shows either all labels with
interval programmed at par. "t.td”.
By pressing and releasing key U it’s possible to skip time "t.td" and
and quickly view all active alerts.
ASCON TECNOLOGIC S.R.L. - X31L - OPERATING INSTRUCTIONS - PAG. 3