EL2521-0024

EL2521-0024 1:
EL2521-0024 pin assignment and sample connection

Connection EL2521-0024

Terminal point

Description

Name

No.

Output  +A

1

Output +A

Output  +B

2

Output +B

Input T

3

Input T

T.Z. GND/T.Z. Ref. GND

4

Signal ground for the outputs

Output  -A

5

Output -A

Output  -B

6

Output -B

Input Z

7

Input Z

Shield

8

Shield

LEDs EL2521-0024

LED

Color

Meaning

Output A, B

green

The illumination of the LEDs for the active frequency outputs A or B at higher frequencies can only be perceived as a glow at half brightness

Input T, Z

green

Lights up when a signal is present

RUN

green

This LED indicates the terminal's operating state:

off

State of the EtherCAT State Machine: INIT = initialization of the terminal

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
Outputs remain in safe state

on

State of the EtherCAT State Machine: OP = normal operating state; mailbox and process data communication is possible

flickering/
rapidly flashing

State of the EtherCAT State Machine: BOOTSTRAP = function for firmware updates