Diagnostic LEDs EK1521, EK1521-0010

Diagnostic LEDs EK1521, EK1521-0010 1:
EK1521 LEDs

LEDs for fieldbus diagnostics

LED

Display

State

Description

LINK / ACT (X1)

green

off

-

no connection on the EtherCAT strand

on

linked

EtherCAT device connected

flashing

active

Communication with EtherCAT device

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.
Outputs remain in safe state

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