LEGRAND 3440 - Page 311

302
1
C1 C2
1
1 2 3 4
2 43
2
3
4
C1 C2

F430/2F430/2
Description
By means of internal relays, this device executes the controls received from the central
unit or the probe. It is needed to control loads such as motorised valves, pumps and
electric radiators.
It has two independent relays which can be used to control two distinct loads with
ON/OFF function and to control a single load with open/close function.
To manage open/close loads the actuator must be congured with the logical interlock
of the two relays and contact C1 must be considered for the opening control and contact
C2 for the closing control.
Technical data
- Power supply from SCS BUS: 27 Vdc
- Operating power supply with SCS BUS: 18 – 27 Vdc
- Maximum absorption relays activated individually): 25.5 mA
- Absorption (relays activated with interlock): 14 mA
- Absorption in stand-by: 9 mA
- Current load of individual relays: 6 A (resistive) e.g. electric radiators
2 A (inductive) e.g. solenoid valves, pumps
- Maximum power consumption: 1.7 W
- Operating temperature: 5 – 40 °C
- Size: 2 DIN modules
Front view
Conguration
The item must be congured by connecting the two congurators identifying the
actuator address and the number of the zone they belong to the ZA and ZB sockets.
In practical terms, the operation is the same as the one performed for the probe, during
the denition of the zone.
A probe and an actuator belonging to the same zone will require the same numeric
congurators in the ZA and ZB sockets. On the front of the two-relay actuator are ve
sockets dedicated to the congurators:
ZA, ZB1, N1, ZB2, N2. The conguration sockets are distributed on the two relays in
the following way:
ZA ZB1 Relay 1 zone address
N1 Relay 1 progressive zone address
ZA ZB2 Relay 2 zone address
N2 Relay 2 progressive zone address
The two relays on the device are independent, and may be used to activate two separate
loads with ON/OFF function, such as: pumps, on/o type motorized valves, and electric
radiators. The diagram shows the correspondence between the congurator sockets and
the relay contacts.
Legend
1. C1 clamps 1 - 2 relay forcing pushbutton
C2 clamps 3 - 4 relay forcing pushbutton
The forcing pushbuttons do not operate if the OFF congurator is connected to the
ZB1 or the ZB2 congurator sockets.
2. Yellow LEDs for notication of activation of the corresponding relays.
3. Congurator socket.
4. Removable clamp for BUS connection SCS.
congurator
socket
RL1
ZA
ZB1
N1
1
2
C1 contact
RL1
congurator
socket
RL2
ZA
ZB2
N2
3
4
C2 contact
RL2
The operation of one of the two relays may be excluded. To do this, connect the OFF
congurator to the socket corresponding to ZB1 or ZB2. The two relays may also be
used to control a single load with OPEN/CLOSE function, such as, for example, solenoid
valves with opening and closing control. For the management of these loads, it will be
necessary to congure the actuator with logic relay interlocking, connecting the same
numeric congurator both to ZB and N, therefore ZB1=ZB2 and N1=N2. In using the
contacts, consider contact C1 for the opening control and C2 for the closing control. A
relay congured in zone 00 operates as a circulation pump actuator; for this function,
the two relays cannot be congured as interlocked.
Actuator 2 relays
MQ00184-c-EN 29/04/2014