Error handling and diagnostics
EK18xx
55
Version: 2.2
LEDs for fieldbus diagnostics
LED
Display
State
Description
LINK /
ACT
(X1 IN)
gree
n
off
-
No connection on the incoming EtherCAT strand
on
linked
Preceding EtherCAT device connected
flashing
active
Communication with preceding EtherCAT device
LINK /
ACT
(X2 OUT)
gree
n
off
-
No connection on the incoming EtherCAT strand
on
linked
Following EtherCAT device connected
flashing
active
Communication with following EtherCAT device
LINK /
ACT E-
bus
gree
n
off
-
no connection to internal E-bus
on
linked
Connection to internal E-bus
flashing
active
Connection/communication internal E-bus
LEDs for diagnostics of the digital inputs and outputs
LED
Display
Description
INPUT**
green
off
Signal voltage "0" (-3 V ... 5 V)
on
Signal voltage "1" (11 V ... 30 V)
OUTPUT** green
off
No output signal
on
24 V
DC
output signal at the respective output
**) depending on version