JUNIOR 633
JUNIOR 650
ELECTRICAL CONNECTIONS TO THE TERMINALS AND THEIR FUNCTIONS
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 65 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.
Accessory
Input. Photocells and
safety edges
in opening
p
g
Input. Safety edges
in closing g
ELPRO 65
Electrical connections
In series if safety edges
21
23
are mechanical, NC
In parallel if safety edges
p
21
23
are resistive 8,2 kΩ
In series if safety edges
23
24
are mechanical, NC
In parallel if safety edges
p
23
24
are resistive 8,2 kΩ
30
Dip-switches and LED indication of their functions
y
g
Normally alight:
,
whenever the safety edge is engaged, the LED
L21
goes off
y
g
,
y
g
Normally alight:
,
whenever the safety edge is engaged, the LED
L24
goes off
y
g
,