Beckhoff EL9 Series Documentation page 60

Product overview
LEDs and connection EL9540
LED Color
Power-LED green
Terminal point
Indication No.
n.c. 1
+24 V 2
0 V 3
PE 4
n.c. 5
+24 V 6
0 V 7
PE 8
LEDs and connection EL9550/EL9550-0012
LED Color
Power-LED field green
Power-LED system green
Terminal point
Indication No.
Output +24 V 1
+24 V 2
0 V 3
Input +24 V 4
Output 0 V 5
+24 V 6
0 V 7
Input 0 V 8
60
Meaning
off 24 V field supply not present
DC
on 24 V field supply present
DC
Meaning
not connected
+24 V (internally connected with terminal point 6 and positive power
contact)
0 V (internally connected with terminal point 7 and negative power
contact)
PE (internally connected with terminal point 8 and PE power contact)
not connected
+24 V (internally connected with terminal point 2 and positive power
contact)
0 V (internally connected with terminal point 3 and negative power
contact)
PE (internally connected with terminal point 4 and PE power contact)
Meaning
off 24 V field supply not present
DC
on 24 V field supply present
DC
aoff 24 V system supply not present
DC
on 24 V system supply present
DC
Meaning
Output +24 V
+24 V (internally connected with terminal point 6 and positive power
contact)
0 V (internally connected with terminal point 7 and negative power
contact)
Input +24 V
Output 0 V
24 V (internally connected with terminal point 2 and positive power
contact)
0 V (internally connected with terminal point 3 and negative power
contact)
Input 0 V
Version: 3.9 EL9xxx