Diagnostic LED

L/A E‑Bus

green

off

-

No connection internal E-bus

on

linked

Connection internal E-bus (Preceding terminal pass through E‑bus)

flashing

active

Connection/ Communication internal E-bus (Preceding terminal pass through E‑bus)

X1 L/A (out)

green

off

-

no connection on the subsequent EtherCAT P strand

on

linked

Subsequent EtherCAT P device connected

flashing

active

Communication with subsequent EtherCAT P device

U_S 24V

green

off

System- and Sensor supply U_S not present

on

System- and Sensor supply U_S present

U_P 24V

green

off

Peripheral voltage for Actors U_P not present

on

Peripheral voltage for Actors U_P present

Diag U_P

red

off

Peripheral voltage for Actors U_P >= 19.4 V, no overload/ no case of short circuit

on

Peripheral voltage for Actors U_P < 19.4 V or overload/ case of short circuit (output current > 3 A)

Diag U_S

red

off

System- and Sensor supply U_S >= 19.4 V, no overload/ no case of short circuit

on

System- and Sensor supply U_S < 19.4 V or overload/ case of short circuit (output current > 3 A)

RUN

green

This LED indicates the terminal's operating state:

off

State of the EtherCAT State Machine: INIT = initialization of the terminal

flashing uniformly

State of the EtherCAT State Machine: PREOP = function for mailbox communication and different standard-settings set

flashing slowly

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

flashing rapidly

State of the EtherCAT State Machine: BOOTSTRAP = function for terminal firmware updates