Beckhoff EL3182, Documentation

Page: 37 / 145

Mounting and wiring
EL3182 37 Version: 1.2
LEDs
LED Color Meaning
Run green This LED indicates the terminal's operating state:
off
State of the EtherCAT State Machine [
}
18] : INIT = initialization of the
terminal or BOOTSTRAP = function for firmware updates [
}
128] of the
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 = verification of the Sync-
Managers [
}
66] 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
Error red EtherCAT communication error
Error
LED1 red Fault indication for broken wire and if the measuring range for the respective channel 1 is
exceeded (under- or overrun)
Error
LED2
(
if
present )
red Fault indication for broken wire and if the measuring range for the respective channel 2 is
exceeded (under- or overrun)
HART green off No HART communication
on HART communication active
HART
Error red HART communication error
Connection assignment EL3182
Terminal point Description
Designation No.
I1 1 Input channel 1
Uv1 2 Sensor supply (internal connected with terminal point 6)
GND 3 GND (internal connected with terminal point 7)
S 4 Shield (internal connected with terminal point 8)
I2 5 Input channel 2
Uv2 6 Sensor supply (internal connected with terminal point 2)
GND 7 GND (internal connected with terminal point 3)
S 8 Shield (internal connected with terminal point 4)
4.8 Connection notes for 20 mA measurement
4.8.1 Configuration of 0/4..20 mA differential inputs
This section describes the 0/4..20 mA differential inputs for terminal series EL301x, EL302x, EL311x,
EL312x and terminals EL3174, EL3612, EL3742 and EL3751.
For the single-ended 20 mA inputs the terminal series EL304x, EL305x, EL314x, EL315x, EL317x, EL318x
and EL375x they only apply with regard to technical transferability and also for devices whose analogue
input channels have a common related ground potential (and therefore the channels are not to each other
and/or not to power supply electrically isolated). Herewith an example for an electrically isolated device is the
terminal EL3174-0002.