DOC-0017-07-EN: AC20 Series - EtherCAT Option
14 (58)
DOC-0017-07-EN-B 04.04.2023
7.2 LED Indications
LED
Description
1
RUN LED
2
ERROR LED
3
Link/Activity (IN Port)
4
Link/Activity (OUT Port)
RUN LED
This LED reflects the status of the EtherCAT device.
LED State
Description
Comments
Off
-
No Power.
EtherCAT device in ‘INIT’-state
Green
OPERATIONAL
-
Green, Blinking
PRE-OPERATIONAL
-
Green, 1 Flash
STOPPED
-
Flickering
BOOT
-
Red
EXCEPTION
Fatal Event
If RUN and ERR turn red, this indicates a fatal event, forcing the bus interface to a physically passive state.
ERR LED
This LED indicates EtherCAT communication errors.
LED State
Description
Comments
Off
No Error
No power or No Error
Red, Blinking
Invalid Configuration
Invalid register or object settings
Red, 1 flash
Unsolicited state change
EtherCAT state change autonomously
Red, 2 flash
Sync Manager watchdog timeout -
Red
Application controller failure
Module in EXCEPTION
Flickering
Booting error detected
Failure. Contact Parker technical support
Link/Activity LED
These LEDs indicate the EtherCAT link status and activity.
LED Status
Description
Comments
Off
No Link
Link not sensed or No power.
Green
Link sensed
No activity, no traffic detected
Flickering
Link sensed
Activity, traffic detected
