background image

3

RX - TX

TX

RX

Fig. 4

4. ELECTRICAL CONNECTIONS

•Make the electrical connections on the terminal-

boards of the receiver and transmitter, using the
grommets, as shown in Fig. 4.

•The BUS consists of a pair of non-polarised

conductors.

•To make the connections to the control unit, consult

the specific instructions of the control unit being used.

5. START-UP

•The setting of the DS1 dip-switch determines the

address of each photocell. Every pair of photocells
(RX and TX) must have the same address.

•Every address must be unique for each pair of

photocells. The address determines the type of safety
device and its intervention (opening, closing, open/
closing).

 To assign the addresses, refer to the instructions

for the control unit.

•Power up the control unit and make sure that the

DL2 

LED lights up on both the receiver and transmitter

(

Tab.2

).

•Check the alignment of the photocells, controlling

the 

DL1

 LED on the receiver (

Tab.1

).

2

L

D

N

O

D

E

T

H

G

I

L

T

H

G

I

L

Y

D

A

E

T

S

y

l

t

c

e

r

r

o

c

e

r

e

w

s

n

o

i

t

c

e

n

n

o

c

e

d

a

m

G

N

I

H

S

A

L

F

n

o

i

t

c

e

n

n

o

c

S

U

B

n

o

t

l

u

a

f

F

F

O

d

e

t

c

e

n

n

o

c

s

i

d

/

g

n

i

t

a

r

e

p

o

t

o

n

1

L

D

D

E

T

H

G

I

L

t

c

e

r

r

o

c

t

n

e

m

n

g

il

a

F

F

O

t

c

e

r

r

o

c

n

i

t

n

e

m

n

g

il

a

DL1 = ALIGNMENT
DL2 = BUS/POWER SUPPLY STATUS
DS1 = SETTING DIP-SWITCHES

CONTROL UNIT

Tab. 1

Tab. 2

ATTENTION: 

for

 

BUS 2 Easy connection use

cables with maximum diameter 0,5 mmq.,
maximum distance 100 m.

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