Beckhoff EL34 Series Documentation page 55

LED Color Meaning
RUN green This LED indicates the terminal's operating state:
off
flashing rapidly
flashing
Single flash
on
System OK green on
L1 - L3 green on
OK
flashes
off
L1 - L3 red on
Error
Terminal point Description
Name No.
L1 1 Phase L1
L2 2 Phase L2
L3 3 Phase L3
N 4 Neutral conductor N
(internally connected to terminal point 8)
IL1 5 Consumer at phase L1
IL2 6 Consumer at phase L2
IL3 7 Consumer at phase L3
N 8 Neutral conductor N
(internally connected to terminal point 4)
EL34xx
State of the EtherCAT State Machine [} 35]:
INIT = initialization of the terminal
State of the EtherCAT State Machine [} 35]:
BOOTSTRAP = function for terminal firmware updates [} 278]
State of the EtherCAT State Machine [} 35]:
PREOP = function for mailbox communication and different default settings set
State of the EtherCAT State Machine [} 35]:
SAFEOP = verification of the Sync Manager [} 113] channels and the distributed
clocks.
Outputs remain in safe state.
State of the EtherCAT State Machine [} 35]:
OP = normal operating state; mailbox and process data communication is possible
System OK,
Voltage in the normal range
L1 L2
Voltage in the critical range
(warning threshold exceeded)
L1 L2
Voltage in prohibited range
(error threshold exceeded)
L1 L2
Version: 1.5
L3
L3
L3
Comment
Connections for the voltage measurement
Note the Warnings [} 54] above " Caution: Risk
of electric shock! "
Connections for the current transformers. Note
the Warnings [} 54] above " Caution: Risk of
electric shock!"
Mounting and wiring
55