Error handling and diagnostics
EK110x, EK15xx
70
Version: 3.6
Diagnostic LEDs EK1541
Fig. 54:
Diagnostic LEDs Bus Coupler EK1541
LEDs for power supply diagnostics
LED
Display
State
Description
Us
green off
-
No operating voltage present at the Bus Coupler
on
-
24 V
DC
operating voltage present at the Bus Coupler
Up
green off
-
No power supply present at the power contacts
on
-
24 V
DC
power supply present at the power contacts
Diagnostic LEDs for the EtherCAT State Machine/PLC
LED
Display
State
Description
RUN
green off
Init
The Bus Coupler is in initialization state
flashing
Pre-Operational
The Bus Coupler is in
pre-operational
state
single flash
Safe-Operational
The Bus Coupler is in
safe-operational
state
on
Operational
The Bus Coupler is in
operational
state
flickers
Bootstrap
Firmware is being loaded.
LEDs for fieldbus diagnosis
LED
Display
State
Description
LINK/ACT
(X1 IN)
green 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)
green off
-
No connection on the outgoing EtherCAT strand
on
linked
Following EtherCAT device connected
flashing
active
Communication with following EtherCAT device
LINK / ACT E-
bus
green off
-
No connection to internal E-bus
on
linked
Connection to internal E-bus
flashing
active
Connection/communication internal E-bus
