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Appendix | EtherCAT Documentation
optoNCDT 1900 / EtherCAT
A 5.9
Meaning of RUN and ERR LEDs in EtherCAT Operation
RUN LED
Meaning
Taste
Select
LED‘s
state
RUN/SF/MS
ERR/BF/NS
Green off
INIT state
Green flashing 2.5 Hz
PRE-OP status
Green single flash,
200 ms ON / 1000 ms OFF
SAFE-OP status
Green on
OP status
LED ERR
Meaning
Red off
No error
Red flashing 2.5 Hz
Invalid configuration
Red single flash,
200 ms ON / 1000 ms OFF
Not requested status change
Red double flash,
200 ms ON / 200 ms OFF
200 ms ON 400 ms OFF
Timeout of the watchdog
Red flashing 10 Hz
Error by initializing
Summary of Contents for ILD1900-10
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