tau DC20 Guía Para La Instalación página 23

CONNECTOR J15:
Terminals
1
2
3
PHOTOCELLS – CONNECTION
It is possible to connect up to 2 pairs of photocells, using the inputs 11 (power supply + 24 V DC
brown wire), 12 (power supply - GND blue wire), 15 (signal, black wire of the receiver) of each of the
two connectors J19 and J20.
Important: if a 2 pair of photocells is connected, set DIP # 4 on SW1 to OFF).
nd
Black wire of the transmitter will not be connected.
Suggestions
To avoid interferences due to peaks or inductive current, make sure that power cables of the photo-
cell's sensor are separated from other power cables, such as the main power supply or other power
cables not used for the door.
The first couple of photocells FT1/FR1 has to be installed 1mt above the ground level, while the
second couple (optional recommended) FT2/FR2 at 50 cm from the ground level (see the diagram
below)
Wire close to the photocell head must not be stretched.
REFERENCE DRAWING – INSTALLATION OF PHOTOCELLS
Input/Output
PHASE
GROUND
NEUTRAL
TX1
RX2
Description
230V AC
230V AC
wrong
RX1
TX2
23
correct