Accessory
Electrical connections
Dip-switches and LED indication of their functions
ELECTRICAL CONNECTIONS TO THE TERMINALS AND THEIR FUNCTIONS
English
30
SAFETY EDGES
The two inputs, that are fitted to control the safety edges, are separated for the opening and closing phases and are recognized by the
Elpro 64 board during the programming phase.
Thanks to a dedicated microcontroller circuit separately fitted on to the board, the actual integrity and correct functioning of the safety edges
is constantly controlled. Any possible fault or loss of efficiency is signalled by the L21 and L24 LEDs keeping flashing.
In case an obstacle is detected by the safety edges (or photocells in opening phase), the gate travel is reversed a little bit so that the obstacle
can be released.
ELPRO 64
JUNIOR 624
Input. Photocells and
safety edges
in opening
p
g
Input. Safety edges
in closing
g
In series if safety edges
y
g
are mechanical, NC
,
In series if safety edges
y
g
are mechanical, NC
,
In parallel if safety edges
p
y
g
are resistive 8,2 kΩ
,
In parallel if safety edges
p
y
g
are resistive 8,2 kΩ
,
8,2 kΩ
24
23
Co
mm
o
n
8,2 kΩ
21
23
Co
mm
on
NC
N
C
21
23
Normally alight
:
whenever the safety edge is engaged, the LED
goes off
L21
Normally alight
:
whenever the safety edge is engaged, the LED
goes off
L24
Co
mm
o
n
24
23
N
C
NC
