Fuses
The device is protected by an auto-reset thermal fuse.
F1, indicated by
I
in Figure 2, is a 4A slow-blow fuse
serving to protect the loads.
Self-learning and configuration buttons
The device includes 8 self-learning and configuration buttons
indicated by
B
in Figure 2, one for each of the 8 channels
(1 .. 8), plus an association button "A" indicated by
Figure 2.
Trimmers and DIP-switch
Shown in Figure 2 are 4 trimmers (SB1-2 .. SB7-8) used to set
the temperature reduction for the economy mode, indicated
D
by
in Figure 2, plus a trimmer for setting the auxiliary
output delay time (AD), indicated by
Also present is a DIP-switch, indicated by
configuring the "options".
INSTALLATION
To install the device carry out the following steps:
- Remove the 5 screws indicated by
off the front panel.
- Fasten the base of the device to the wall using the two
screw holes indicated by
5
While working with tools in proximity to electronic
components, carefully check that the circuit is
disconnected from the 230V~ mains power supply and
take care not to damage circuits or components.
- Make the electrical connections as explained in the
paragraph on "Electrical connections".
- Configure the device as directed in "Configuring the system".
- Close the device. The cables should be "bent" as shown in
Fig. 4 and made to pass through the cable glands
If you use a cable entry and its respective cable gland,
you will have to remove the plastic tab
suitable pliers to open the passage for the cable. Then
reposition the front panel on the enclosure and fasten in
place with the five screws
1
ELECTRICAL CONNECTIONS
This sections illustrates how to connect the relay module
correctly: carefully read the directions below and refer to
Fig. 3, which shows the arrangement of the terminals and
how they are connected internally.
Terminals 1 and 2 are power inputs: connect them to the
230V~ mains supply, making sure that terminal 2 is
connected to Neutral.
The electronic circuit is internally protected by means of an
auto-reset thermal fuse, while the loads are protected by the
4A slow-blow fuse, F1 indicated by
Terminals 25 and 26 are inputs for the auxiliary power
supply of the actuators and terminals from 3 to 18 are the
8 actuator outputs.
The module leaves the factory with jumpers in place to
connect terminals 25 and 26 to the power supply line
(230V~) and can therefore directly power the loads
connected to its terminals 3 to 18, as shown in Fig. 3.
In this case the auxiliary power supply must not be connected
to terminals 25 and 26 and the loads will be powered by the
230V~ mains supply.
If the actuators need to be powered at a different voltage
(for example if a load operates at 24V~) the receiver must
be slightly modified as follows:
A
in
E
in Figure 2.
F
in Figure 2, for
in Fig. 1 and take
1
in Fig. 2 .
6
.
7
in Fig. 4 with
in Fig. 1.
I
in Fig. 2.
13
- Cut jumper wires JP1 and JP2,
and remove them completely.
- This operation serves to disconnect the 230V~ power
supply from the internal line for powering the loads.
- Connect an external power source (e.g. a transformer with
a 24V~ output) to terminals 25 and 26 (Fig. 3).
- Connect the actuators to be controlled to terminals from
3 to 18. These loads must be suitable for the voltage
supplied to terminals 25 and 26.
- Check the rating of the protection fuse F1: it must be sized
according to the maximum total current of the loads (see
below).
The user must take account of the energy consumption of
the loads and make sure that the external power source is
capable of supplying the total power necessary in the worst
possible situation (i.e. when all loads are switched on). For
example, if you use 8 actuators each requiring 3W at 24V~,
it will be necessary to provide an external transformer with
a 24V~/24W output (3W x 8 actuators). A safety margin of
+10% is strongly recommended: in the preceding example,
this would mean using at least a 30W transformer.
The slow-blow protection fuse supplied, F1, has a trip value
of 4A, which is suitable for 16 standard 230V~ actuators.
If you need to connect a larger number of actuators
or 24 V~ actuators, you should replace fuse F1 with one
having a higher rated trip current. The fuse should be sized so
as to withstand the inrush current of the actuator; in case of
need, ask your local retailer for further information.
Terminals 19 and 20 are the auxiliary output terminals for
connecting a circulating pump or boiler.
These are voltage-free contacts (not powered) so that you
can use a pump or boiler that works at various voltages. The
diagram in Fig. 3 illustrates the connection of a circulation
pump.
Terminals 21, 22 and 23 (Fig. 3) are respectively the external
"Global standby", "Heating/Cooling" and "Economy" inputs
that can be closed at terminal 24 to activate the associated
function.
The status of the external inputs are communicated to
all modules connected in the chain, so it is not necessary
to connect the inputs of several modules in parallel. For
example, it is sufficient to connect the switch to a single
module in the chain in order to change the Heating/Cooling
status of all channels in the system.
The "SIGNAL IN" socket is used to plug in the cable leading
from the active antenna, or else the output cable of another
relay module if the system requires more than 8 actuator
outputs.
Each relay module delivers the signal originating from the
antenna to the "SIGNAL OUT" socket, thus enabling the
system to be expanded. See the examples in Fig. 5 and
Fig. 6.
Up to ten relay modules can be connected in cascade to the
same antenna.
WARNING
- Connect the device to the mains power supply via an
omnipolar switch complying with current regulations
and having a contact gap of at least 3 mm in each
pole.
- Device installation and electrical connections must
be entrusted to qualified personnel and must comply
with the laws in force.
L
and
M
in Figure 2,