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DMAN802000066-SY250 Idro 4/8 Buttons Manual
2.2
Digital Inputs
2.2.1
Safety High Voltage 1
When the contact is opened in every functioning state (Manually Rearmed Thermostat), after a delay equal
to timer
T09
, the system goes in to Extinguishing and then in Block. Control Panel display visualises error
High Voltage 1 Safety (
Er01
).
If you don’t use a rearmed thermostat short-circuit
Pins 11-12
of the
connector.
2.2.2
Safety High Voltage 2
When the contact is opened and the system is in a On State, after a delay equal to timer
T10
, the system
goes in to Extinguishing and then in Block. On Control Panel displays you can visualises error High Voltage 2
Safety (
Er02
). The state of this input is not detected if the Combustion Fan is off. If you don’t use a
rearmed thermostat short-circuit
Pins 13-14 of
the connector.
2.2.3
Encoder
To the connections 40-41-42 you can connect an input for the read of the encoder signal in order to adjust
rounds number of combustion fan. Connect as showed in the table.
2.2.4
Pellet Level Input
Setting the parameters
P44
and
P48
in the System Menu it is possible to:
P44
=1, 3, 4, 5, 6
and
P48
=1, 3, 4
If the level falls below the threshold, the system signals the lack of fuel for a time equal to the
T24
, then it goes in Extinguishing with error (
Er18
). If the tank is filled the system stops every
signalling and it is possible to restart it.
P44
=2
or
P48
=2
If the level falls below the predetermined threshold, the output that controls the Load Pellet
Engine is switched on.
If the input is not used, if
P09
=0 short circuit pins 29-30, otherwise leave pins unconnected.
2.3
Room Probe or Thermostat
To the connections 27-28 is available a Room Probe or a Room Thermostat.
2.3.1
Room Probe
If a probe is used, set
A19
=1. This probe can read the room temperature; it is a NTC sensor and it can read
from 0 to 50°C with a precision of 1 °C. If you don’t connect the probe to the system you’ll read 0 °C. In
case of short-circuit you’ll read 50°C.
Setting the parameter Enables
A01
it is possible to:
A01
=
0
Room Thermostat not reached
: the system goes in Ignition State
Room Thermostat reached
: the system goes in Extinguishing State
Button ON/OFF on Control Panel has priority on this input
A01
=
1
Room Thermostat not reached
: the system goes in Run Mode State
Room Thermostat reached
: the system goes in Modulation State
A01
=
2
Room Thermostat not reached
: the system goes in Run Mode State
Room Thermostat reached
: the system goes in Standby State
A01
= 3
Room Thermostat not reached
: the system reactivates the Pump
Room Thermostat reached
: if the temperature of the boiler’s water exceeds the value of the
Th19
Thermostat the system blocks the Pump until the temperature reaches the
Th21
Thermostat.
This feature is available only if it is selected a plumbing plant different from 4.
If it is set the plant 0 or 2, if there is a sanitary water demand the Pump is not blocked by the
Room Thermostat and, if it was previously been blocked by the Thermostat, it is reactivated.
If
A01
=
1
,
2, 3
and the input is not used short circuit the relative pins.
