Mounting and wiring
EL3783
39
Version: 1.1
Terminal point
Description
Name
No.
L1
1'
Phase L1 voltage measurement input
2'
n.c.
L3
3'
Phase L3 voltage measurement input
N
4'
Neutral conductor
5'
n.c.
L2
6'
Phase L2 voltage measurement input
7'
n.c.
N
8'
Neutral conductor
LEDs
LED
Color
Meaning
RUN
green
This LED indicates the terminal's operating state:
off
State of the
:
INIT
= initialization of the
terminal or
BOOTSTRAP
terminal
flashing
State of the EtherCAT State Machine:
PREOP
= function for mailbox
communication and different standard-settings set
Single flash State of the EtherCAT State Machine:
SAFEOP
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
IL1 OK
green
on
Current IL1 ok
IL1 Error red
on
Overcurrent on L1.
Current > 1.8 A (with 1 A measuring range), equivalent to 1.3 Arms
Current > 9.2 A (with 5 A measuring range), equivalent to 6.5 Arms
IL2 OK
green
on
Current IL2 ok
IL2 Error red
on
Overcurrent on L2.
Current > 1.8 A (with 1 A measuring range), equivalent to 1.3 Arms
Current > 9.2 A (with 5 A measuring range), equivalent to 6.5 Arms
IL3 OK
green
on
Current IL3 ok
IL3 Error red
on
Overcurrent on L3.
Current > 1.8 A (with 1 A measuring range), equivalent to 1.3 Arms
Current > 9.2 A (with 5 A measuring range), equivalent to 6.5 Arms
L1 OK
green
on
Voltage on L1 OK
L1 Error
red
on
Overvoltage on L1. Voltage > 737 V (L1-N)
L2 OK
green
on
Voltage on L2 OK
L2 error
red
on
Overvoltage on L2. Voltage > 737 V (L2-N)
L3 OK
green
on
Voltage on L3 OK
L3 error
red
on
Overvoltage on L3. Voltage > 737 V (L3-N)
Error
red
on
Other errors (logical OR conjuction)
Wiring and measurement methods
Examples of wiring for measurements in the three-phase grid