Leds And Connection - Beckhoff EL3681 Documentation

Mounting and wiring
4.6

LEDs and connection

Fig. 27: EL3681 Connection
Connection EL3681
Terminal point No.
V 1
COM 2
10 A 3
Shield 4
V 5
COM 6
1 A 7
Shield 8
LEDs
LED Color Meaning
RUN green This LED indicates the terminal's operating state:
off
flashing
single flash State of the EtherCAT State Machine: SAFEOP = verification of the Sync Manager [} 102] channels
on
Term. Error red
An error has occurred (see chapter "Error handling and diagnosis [} 168]")
Voltage green Indicates voltage measurement
Current green Indicates current measurement
48
Comment
Terminal point for voltage measurement (internally connected with terminal point 5)
Ground (internally connected with terminal point 6)
Terminal point for current measurement, 10 A range
Shield (internally connected to terminal point 8)
Terminal point for voltage measurement (internally connected with terminal point 1)
Ground (internally connected with terminal point 2)
Terminal point for current measurement, 1 A range
Shield (internally connected to terminal point 4)
State of the EtherCAT State Machine [} 29]: INIT = initialization of the terminal or BOOTSTRAP =
function for firmware updates [} 172] of the terminal
State of the EtherCAT State Machine: PREOP = function for mailbox communication and different
standard-settings set
and the distributed clocks.
Outputs remain in safe state
State of the EtherCAT State Machine: OP = normal operating state; mailbox and process data
communication is possible
Version: 3.0 EL3681