EL8601-8411 - LEDs

EL8601-8411 - LEDs 1:
EL8601-8411 - LEDs

No.

Name

Color

Meaning

1

Error

red

off

No error

on

Error

2

DI/ENC A/CNT Clk

green

off

Signal voltage "0" (-3 V ... 5 V) at the corresponding input

3

DI/ENC B/CNT Dir

4

DI/Latch/Thr. Out/DO

on

Signal voltage "1" (11 V ... 30 V) at the corresponding input/output

5

DI/Gate/DO

6

PWM 1/ DO

green

Signal at PWM 1 / DO - output

7

AI

green

Signal at analog input (AI)

8

Error AI

red

Fault indication for wire break and if the measuring range for the analog input is exceeded (see chapter "Measuring ranges and scaling type").

9

RUN

green

This LED indicates the terminal's operating state:

off

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

flashing uniformly

State of the EtherCAT State Machine: PREOP = function for mailbox communication and different default settings set

flashing slowly

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

flashing rapidly

State of the EtherCAT State Machine: BOOTSTRAP = function for Firmware updates of the terminal

10

DI 1

green

off

Signal voltage "0" (-3 V ... 5 V) at the corresponding input

11

DI 2

12

DI 3

on

Signal voltage "1" (11 V ... 30 V) at the corresponding input

13

DI 4

14

PWM 2 / DO

green

Signal at PWM 2 / DO output

15

AO

green

Signal at analog output (AO)

16

Error AO

red

Error at analog output:
There is a short circuit or wire break and if the measuring range is exceeded or not reached (see chapter "Output ranges and scaling type").

EL8601-8411 - LEDs 2:

Overcurrent protection of the 20 mA inputs

The current inputs are protected against damage due to overcurrent by an internal current limiter. Currents > 30 mA can occur.

  • To ensure that the current limiter is not overloaded in the event of a fault, no voltage > 30 V may originate from the source device.
  • Overcurrent is displayed in the process image as "Overrange". After occurrence
  • If the error state persists for a longer period of time, the terminal-internal current limitation reduces the signal current drawn for thermal reasons, even below 20 mA depending on the ambient conditions.