EL3164 - Connection, display and diagnostics

EL3164 - Connection, display and diagnostics 1:Fig.44: EL3164 - LEDs and connection

Connection EL3164

Terminal point

Description

Internally connected
with connection

Max. current carrying capacity *)

Name

No.

Input 1

1

Input 1

-

not applicable (voltage input)

GND

2

Signal ground for input 1

4, 6, 8

40 mA

Input 3

3

Input 2

-

not applicable (voltage input)

GND

4

Signal ground for input 2

2, 6, 8

40 mA

Input 2

5

Input 3

-

not applicable (voltage input)

GND

6

Signal ground for input 3

2, 4, 8

40 mA

Input 4

7

Input 4

-

not applicable (voltage input)

GND

8

Signal ground for input 4

2, 4, 6

40 mA

*) Constant and peak value

EL3164 - Connection, display and diagnostics 2:

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).

EL3164 - Connection, display and diagnostics 3:

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.

LEDs

LED

Color

Meaning

RUN*

green

This LED indicates the terminal's operating state (if more than one RUN LED is present, all of them have the same function):

off

State of the EtherCAT State Machine: INIT = initialization of the terminal or BOOTSTRAP = function for firmware updates 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 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