Allmatic FT ALL7 - External Photocells Manual

GENERAL DESCRIPTION

External miniaturized photodevice with modulate light and two relays, in accordance to the Standard UNI EN 12453:2002.

DESCRIPTION

The outdoor photocells are compact and reliable over the years; they consist of a receiver and a modulated infrared light transmitter.

Their main features are:

• Synchro circuit for installing two pairs of transmitters and receivers without the signals interfering with one another.

For the technical features, refer to the following table.

MAIN FEATURES
Model	Selectable range (Jumper)	Power supply	Synchrononization
FT ALL7	25 m	12 / 24 Vac/Vdc	Yes

POSSIBLE USES

The photocells are used in alarm systems and for protecting doors, gates and automated entrances in general.

INSTALLATION AND ALIGNMENT

1. To install the unit remove the photocell covers as shown in figure 1
   

A	Cover screw	F	Anchor
B	Cover	G	Power cable
C	Fixing screw	H	Fresnel lens
D	Photocell body
E	Spacer

2. Make all connections as shown in figure 2; pay attention to the voltage polarities in case of direct current or use of two pairs of photocells in synchronised mode.
   

	Jumper A
	Synchronized mode
	Normal mode

The cables must be as short as possible. Avoid passing near others sources of disturbance (such as motors for example).

ATTENTION! to improve immunity to photocell disturbances both the photocell and the motor of the automatism will have to be earthed. Earth connections must be made using short cables with a cross section not less than 1,5 mm²

3. SYNCHRONISED OPERATION:
   1. Synchronised operation is useful in case two pairs of photocells are fitted, to prevent the transmitters and receivers of different pairs interfering with one another. The photocells can only be synchronised if these are supplied with alternate current. In the case of direct current, the synchronisation function is cancelled, even when the jumper is set in "synchronised" position. In this case, the receivers - like the transmitters - will have to be installed one opposite the other to prevent them interfering with one another.
   2. To obtain synchronised operation, the devices must be powered as indicated in figure 3, with 12/24V alternate current, paying attention to the connections and moving the jumper on the receiver to "synchronised" position (see figure 2 jumper A).
      
4. Connect the output relay contacts on the receiver according to requirements. Figure 4 shows the state of the relay contacts.
   
5. On the basis of the exploded diagram in figure 1, fasten the body of photocell "D" to the wall using the fixing screws "C", the spacers "E" and the anchors "F". For correct installation, the transmitter and the receiver must be placed one in front of the other and aligned on the same axis (see figure 5 ). To achieve correct alignment, adjust the fixing screws.
   
6. Power the photocells with the desired voltage.
7. Fit cover "B" using the cover screws "A" (see figure 1)
   Make sure the system is working properly by breaking the infrared beam several times by placing an obstacle between the transmitter and the receiver. Next check relay switch (see figure 6)
   
8. For further adjustment of system alignment, remove the cover and adjust the fixing screws "C" (as envisaged at point 4.5).

TECHNICAL FEATURES

Power supply	Vdc	10,5 - 45 V
	Vac	10,5 - 35 V
Range		25 m
Relay contact		1 A at 24 Vdc
Current absorption	TX: 12 Vdc	8 mA
	RX: 12 Vdc	30 mA
	TX: 12 Vac	18 mA
	RX: 12 Vac	70 mA
Working temperature		-10... +55°C
Response time		30 msec
		550Hz
		950mm

ATTENTION! in case of rain, snow, fog or dust, the range of the photocell could drop.