13
2.6
Connecting the Safety Edges to INT-MOB 50 and INT-50, 51
• Maximum total length of the safety edge
with cable: 30 m / 98 ft
• Several safety edges on the same input
must be connected in series (Fig.10)
• The last safety edge must be terminated
with an 8.2 kohm resistor (Fig.10)
INTRA
8,2 k
Ω
We recommend that you measure the resist-
ance values of the sensors prior to connec-
tion. If the sensor is not actuated, the resist-
ance values should be between 7.5 and
8.7 kohm (typically 8.2 kohm).
If safety edges are only connected to one safety edge input (IN 1 or IN 2, IN 3 or IN 4),
the unused channel IN2 or IN1 must be jumpered with 8.2 kohm otherwise a fault
will be displayed.
Fig. 10
IN2
IN1
close
open
2.4
Terminals /Terminal Assignment INT-50, 51
2.5
Terminals/Terminal Assignment INT-MOB 50
Remove the pin from the cable gland
when connecting 2 mobile safety edges
(close+open).
green
red
yellow
PWR
OUT2
OUT1
IN
4
INT-FIX
IN3
~
~
X
Fig. 8
Fig. 9
2.7
Outputs
The system has two separate safety outputs, OUT1 and OUT2 (Fig.7)
Safety output OUT1 (“opening” relay) and OUT2 (“closing” relay)
When the device is switched on, the safety edges are permanently monitored on the control unit
INT-50 and the converter INT-MOB 50 (activated – not activated – interrupted)
If everything is OK, the relays of safety outputs OUT1 and OUT2 close.
OUT1
– If the safety edge on IN1 is activated on the
INT-MOB 50 or IN3 on INT-50, the relays of
the safety output OUT1 open for as long as
the safety edge is activated
– When the safety edges are free again, the
safety relays close
OUT2
– If the safety edge on IN2 is activated on the
INT-MOB 50 or IN4 on INT-50, the relays of
the safety output OUT2 open for as long as
the safety edge is activated
– When the safety edges are free again, the
safety relays close
