EL3443 – LED and connection

WARNING

Caution: Risk of injury through electric shock!

If you do not connect the terminal point N with the neutral conductor of your mains supply (e.g. when using for current measurement only), terminal point N should be grounded, in order to avoid dangerous overvoltages in the event of a current transformer fault!

WARNING

Caution: Risk of injury through electric shock!

Please note that many vendors do not permit their current transformers to be operated in no-load mode! Connect the terminal to the secondary winding of the current transformers before using the current transformer!

EL3443 - LEDs and connection

EL3443 – LED and connection 1:
EL3443 LEDs and connection

Terminal point

Description

Comment

Name

No.

L1

1

Phase L1

Connections for the voltage measurement
Note the Warnings above " Caution: Risk of electric shock! "

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

Connections for the current transformers. Note the Warnings above " Caution: Risk of electric shock!"

IL2

6

Consumer at phase L2

IL3

7

Consumer at phase L3

N

8

Neutral conductor N
(internally connected to terminal point 4)

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

flashing rapidly

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

flashing

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

Single flash

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

System OK

green

on

System OK,

(the "SystemOK"-LED is the representation of the "System State" bit, F600:01)

L1 - L3
OK

green

on

Voltage in the normal range
L1 EL3443 – LED and connection 2: L2 EL3443 – LED and connection 3: L3 EL3443 – LED and connection 4:

flashes

Voltage in the critical range
(warning threshold exceeded)
L1 EL3443 – LED and connection 5: L2 EL3443 – LED and connection 6: L3 EL3443 – LED and connection 7:

off

Voltage in prohibited range
(error threshold exceeded)
L1 EL3443 – LED and connection 8: L2 EL3443 – LED and connection 9: L3 EL3443 – LED and connection 10:

L1 - L3
Error

red

on