Diagnostic LEDs

Diagnostic LEDs 1:

LED

Color

Meaning

Run

green

This LED indicates the terminal's operating state.

off

State of the EtherCAT State Machine: INIT = terminal initialization

flashing

State of the EtherCAT State Machine: PREOP = function of mailbox communication and variant standard settings

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

flickering

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

Power

green

off

Error in internal communication to the field side (e.g. due to missing supply voltage)

on

Internal communication OK

Enable A/B

green

off

Energization is disabled or EL2212 is not ready for operation.

on

Energization is enabled or EL2212 is ready for operation.

Warning A/B

yellow

off

no defect

on

Operating warning, e.g.:

- Supply voltage is outside the configured range
- 80 °C temperature exceeded
...

Error A/B

red

off

no defect

on

Configuration error, e.g.:

- no supply voltage connected
- 100°C temperature exceeded
- short-circuit
...