81
2504709-01-06/17 (translation of the original operating instructions)
Operating Instructions
Light Grids/ Light Curtains LCA 4
EN
CAUTION
In the automatic operation mode, there is no interlocking circuit available after a restart.
(Start / restart interlock).
Pay attention to the results of your risk analysis before configuration.
Table 15: Automatic operation mode
Protective equipment status
Behavior of safety outputs
Area clear
FO1A / FO1B activated
Area interrupted
FO1A / FO1B deactivated
9.1.3. Connection of external contactors K1 and K2
External contactors (K1/K2) can be connected via contacts in both operation modes. For this purpose the plug connector
on the receiver must be connected to the normally closed contacts in the external contactor.
Z
Connect pin 4 on the 8-pin M12 plug connector to the power supply (24 V DC) via the normally closed contacts on the
external contactors.
Important!
In the manual operation mode it must be ensured that the restart pushbutton is connected to the
normally closed contacts on the external contactors K1/K2.
If necessary, the response time of external contactors must be checked using an additional device.
9.1.4. Connection examples with safety modules
24 V DC
GND
24 V DC
GND
LOW RANGE
HIGH RANGE
Range and TEST
selection
-B1
0V
DC
3
FE
5
RANGE0
2
RANGE1
4
+24V
DC
1
LCA
Range and TEST
selection
-B1
0V
DC
3
FE
5
RANGE0
2
RANGE1
4
+24V
DC
1
LCA
Figure 21: Transmitter
Summary of Contents for LCA 4
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