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Installation and use manual for OT-U250PP & OT-U500PP
INPUT SIGNALS
9.1.2.
A
By connecting this input to positive, FOGGING SYSTEM is armed, blue frontal LED is switched on and
when the machine reaches proper temperature it means that it is ready for shooting.
In case of alarm, opening ARM input, the fog emission stops immediately, even if the time set wasn’t
reached.
S
Putting this input to positive, if FOGGING SYSTEM is hot and armed, starts fog emission for the set time
(see paragraph 12).
VALIDATION INPUT
9.1.3.
In order to validate this input, it’s necessary to insert the jumper W4. This input automatically generates
AND function with input S.
If any input receives the shooting command, the generator doesn’t emit fog if within 1 minute doesn’t
receive the command also from the second input.
P+ Output
positive to give power to a validation sensor or a remote control receiver, max 300 mA.
P- Output
negative to give power to a validation sensor or a remote control receiver, max 300 mA.
PV
Validation input. It’s possible to connect to this input a validation sensor with a contact normally closed
connected to the terminal P-.
In order to check the correct operation of PV input, it’s necessary to remove the jumper W4.
When AND function is disabled, to each opening of PV input you will hear a “beep” for 5’’. At the end of the
test, re-establish AND function inserting jumper W4 again
OUTPUTS
9.2.
E
This output (NPN Open Collector) closes towards negative direction when the bag is empty. This output
(NPN open collector) closes towards negative when the fogging machine emitted fog for at least 100’’ or
when the bag is empty. The signal is activated by a sensor that detects the absence of liquid just while
shooting.
The empty bag signal is deactivated only making the RESET (see paragraph 14). For this reasons, if the bag is
not inserted, or there is an empty bag inside, FOGGING SYSTEM will detect it just after a shot.
F
This output (NPN Open Collector) closes towards negative when there is a malfunction (such as batteries
expired, fault of power supply or temperature control fault), which compromises the functioning of the
device and which requires a technical action.
T
This output (NPN Open Collector) closes towards negative direction when you open the bag door or
when the accelerometer detects a sudden movement (such as the detachment from the wall).
C
This output (NPN open collector) closes towards negative only after that the system has emitted fog for
the set time. If the emission of fog is interrupted (if there is an interruption of ARM command, if the glycol
finishes, if there is not thermal autonomy anymore) this output will not change its status.
Remember, it is necessary to connect all three outputs to an alarm central or an electronic
panel that can see all those information in real time and take proper action.
In order to avoid accidental activation with subsequent fog emission, the inputs are in
“negative security”, for this reason the disconnection of a wire does not cause activation.
So it is necessary to check carefully the reliability of connections and protect the cables to the control panel
to avoid the risk of accidental damages.
