EL3453 – 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!

EL3453 - LEDs and connection

EL3453 – LED and connection 1:
EL3453 LED's, connection (Component values only exemplary, exact value s. Technical data)

Terminal point

Description

Comment

Name

No.

IL1

1

Phase L1 current measurement input

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

 

IL2

2

Phase L2 current measurement input

 

IL3

3

Phase L3 current measurement input

 

IN

4

Neutral conductor current measurement input (star point)

 

IL1‘

5

Phase L1 current measurement output

 

IL2‘

6

Phase L2 current measurement output

 

IL3‘

7

Phase L3 current measurement output

 

IN‘

8

Neutral conductor current measurement output (star point)

 

L1

1‘

Phase L1

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

 

 

2‘

n.c.

 

L3

3‘

Phase L3

 

N

4‘

Neutral conductor
(internally connected with terminal point 8‘)

 

 

5‘

n.c.

 

L2

6‘

Phase L2

 

 

7‘

n.c.

 

N

8‘

Neutral conductor
(internally connected with 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

Right prism:
Voltage in normal range
L1 EL3453 – LED and connection 2: L2 EL3453 – LED and connection 3: L3 EL3453 – LED and connection 4:

flashes

Right prism:
Voltage in the critical range
(warning threshold exceeded)
L1 EL3453 – LED and connection 5: L2 EL3453 – LED and connection 6: L3 EL3453 – LED and connection 7:

off

Right prism:
Voltage in prohibited range
(error threshold exceeded)
L1 EL3453 – LED and connection 8: L2 EL3453 – LED and connection 9: L3 EL3453 – LED and connection 10:

L1 - L3
Error

red

on

IL1 - IL3
OK

green

on

Left prism:
Current in normal range
IL1 EL3453 – LED and connection 11: IL2 EL3453 – LED and connection 12: IL3 EL3453 – LED and connection 13: IN EL3453 – LED and connection 14:

flashes

Left prism:
Current in the critical range
(warning threshold exceeded)
IL1 EL3453 – LED and connection 15: IL2 EL3453 – LED and connection 16: IL3 EL3453 – LED and connection 17: IN EL3453 – LED and connection 18:

off

Left prism:
Current in prohibited range
(error threshold exceeded
IL1 EL3453 – LED and connection 19: IL2 EL3453 – LED and connection 20: IL3 EL3453 – LED and connection 21: IN EL3453 – LED and connection 22:

IL1 - IL3
Error

red

on