Diagnostic LEDs
Fig.6: Pin assignment CU1521, CU1521-0010, CU1561LEDs for fieldbus diagnostics/power supply
|
LED |
Color |
Display |
State |
Description |
|---|---|---|---|---|
|
L/A (X1) |
green |
off |
- |
no connection on the EtherCAT strand |
|
on |
linked |
EtherCAT device connected | ||
|
flashing |
active |
Communication with EtherCAT device | ||
|
Power |
green |
off |
No supply voltage | |
|
on |
24 V supply voltage present | |||
LED diagnostics EtherCAT State Machine
|
LED |
Color |
Meaning | |
|---|---|---|---|
|
RUN |
green |
This LED indicates the terminal's operating state: | |
|
off |
State of the EtherCAT State Machine: INIT = initialization of the terminal | ||
|
single flash |
State of the EtherCAT State Machine: PREOP = function for mailbox communication and different standard-settings set | ||
|
flashing |
State of the EtherCAT State Machine: SAFEOP = verification of the sync manager channels and the distributed clocks. | ||
|
on |
State of the EtherCAT State Machine: OP = normal operating state; mailbox and process data communication is possible | ||
|
flickering |
State of the EtherCAT State Machine: BOOTSTRAP = function for terminal firmware updates | ||
|
orange |
on |
CU15x1 is in EtherCAT mode, rotary switch was moved during operation | |
|
red |
on |
CU15x1 is in Ethernet mode, rotary switch was moved during operation | |
|
red/green |
flashing |
Invalid rotary switch position after power-on Remedy: Move rotary switch to valid position | |