EL3174-0042 - Connection, display and diagnostics

+ Input 1

1

Channel 1, voltage measurement, positive input (+)

-

40 mA

+ Input 2

2

Channel 2, voltage measurement, positive input (+)

-

40 mA

+ Input 3

3

Channel 3, voltage measurement, positive input (+)

-

40 mA

+ Input 4

4

Channel 4, voltage measurement, positive input (+)

-

40 mA

- Input 1

5

Channel 1, voltage measurement, negative input (-)

-

40 mA

- Input 2

6

Channel 2, voltage measurement, negative input (-)

-

40 mA

- Input 3

7

Channel 3, voltage measurement, negative input (-)

-

40 mA

- Input 4

8

Channel 4, voltage measurement, negative input (-)

-

40 mA

*) Constant and peak value

RUN*

green

These LEDs indicate the terminal's operating state *:

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

ERROR**

red

Error indication in the event of a wire break or when the measuring range is exceeded or not reached

*) If there are several RUN-LEDs, they all have the same function.
**) The error display shows the signal processing state for each channel.