EL3101 - Connection, display and diagnostics

EL3101 connection

Terminal point		Description	Internally connected with connection	Max. current carrying capacity *)
Name	No.	Description	Internally connected with connection	Max. current carrying capacity *)
+ Input 1	1	+ Input 1	-	not applicable (voltage input)
- Input 1	2	- Input 1	-	not applicable (voltage input)
GND	3	Signal ground for input 1	7 (high-resistance, therefore potential equal but not current carrying)	40 mA
Shield	4	Shield (FE)	8, DIN rail	100 mA **)
n.c.	5	not connected	-	-
n.c.	6	not connected	-	-
GND	7	Signal ground for input 1	3 (high-resistance, therefore potential equal but not current carrying)	40 mA
Shield	8	Shield (FE)	4, DIN rail	100 mA **)
) Constant and peak value *) Shield lines should be de-energized!

	GND connection points The GND connection points of the terminal are not connected internally directly, but via EMC protection components. Therefore, each analog encoder/sensor must be connected separately with 2 wires, even if the connection diagram of the terminal for the channels indicates a common ground (GND).

	Current carrying capacity of the input contacts The maximum permitted current on the signal-relevant terminal points (inputs, GND) is 40 mA (if applicable).

Notice

Terminal GND and system GND

The signal ground GND of this terminal is not internally connected to the negative power contact. This design allows GND to be connected to a ground other than the negative power contact "Power contact 0V" if necessary.
If disturbing potential differences occur, GND must be electrically connected to the system GND or another suitable ground.

EL3101 LEDs

EL3101 - Connection, display and diagnostics 4:

EL3101 - LEDs

LED	Color	Meaning
RUN*	green	These LEDs indicate the terminal's operating state. If several RUN LEDs are present, all of them have the same function:
		off	State of the EtherCAT State Machine: INIT = initialization of the terminal or 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
*) If several RUN LEDs are present, all of them have the same function.