9
11. OPERATION DATA AND WIRING MANUAL CONTROLS
Microswitches start and end of stroke
The signaling devices stroke end FCU and beginning stroke DCU are both
switches with two contacts independent of the type NC + NO. The first nor-
mally closed (NC) contacts 1 and 6, while the second normally open (NO)
contacts 2 and 5. At the click of the switch contact status is reversed, the
NC contact opens and the NO contact closes. Ex: contacts 1 and 6 (NC) is
connected to the relay that controls power to the fan, while contacts in 2
and 5 (NO) is connected to a warning light alarm. In this case the closure of
the damper, the fan will turn off and turn on the light. Technical data of the
switches.
- Cable section: 2.5 mm ² rigid - flexible with ferrule 1.5 mm² Operating tem-
perature: from - 25 °C to + 70 °C
Electromagnet device
If necessary, you can equip the damper of an electromagnet that allows you
to anticipate the closing of the damper with respect to the intervention of the
thermal fuse. Depending on the type of electromagnet (normally energized or
de-energized), sending or interrupting the electrical signal power, the damper
will close preventing the diffusion of cold smoke. In case of fire, the raising
of the temperature, the thermal fuse has priority of action compared to the
electromagnet. Technical data of the magnets.
- Holding force: 120N
- Degree of protection (En 60529): IP40
- Power consumption at 20 ° C: 1.6 W (lack) - 3.5 W (output)
- Operating Temperature: -30 ° C to +85 ° C
Start of the
race blade open
Electromagnet
MD
Power supply
DC 24 V or CA 20 V
End of the race
blade closed