Mounting and wiring
EL31xx-00xx
69
Version: 5.9
Fig. 48: EL3144 LEDs and Connection
LEDs
LED
Color
Meaning
RUN*
green
This LED indicates the terminal's operating state (if more than one RUN LED is present, all of them have the
same function):
off
State of the
EtherCAT State Machine [
}
36]
:
INIT
= initialization of the terminal or
BOOT-
STRAP
= function for
firmware updates [
}
211]
of the terminal
flashing
State of the EtherCAT State Machine:
PREOP
= function for mailbox communication and
different standard-settings set
single flash
State of the EtherCAT State Machine:
SAFEOP
= verification of the
Sync Manager [
}
143]
channels and the distributed clocks.
Outputs remain in safe state
on
State of the EtherCAT State Machine:
OP
= normal operating state; mailbox and process
data communication is possible
ERROR**
red
Fault indication in the event of undershooting or overshooting of the measuring range
*) If several RUN LEDs are present, all of them have the same function
**) The error display shows the signal processing state for each channel
Connection EL3141
Terminal point
Description
Designation
No.
Input 1
1
Input 1
+24 V
2
+24 V (internally connected to terminal point 6 and positive power contact)
0 V
3
0 V (internally connected to terminal point 7 and negative power contact)
Shield
4
Shield (internally connected to terminal point 8)
n.c.
5
not connected
+24 V
6
+24 V (internally connected to terminal point 2 and positive power contact)
0 V
7
0 V (internally connected to terminal point 3 and negative power contact)
Shield
8
Shield (internally connected to terminal point 4)
