In normal operation, the green power LED L1 flashes briefly once per second.
Case of an error
If an error has occurred, the LED turns red and signals an error number. In the following figure, the error number 3 is signaled.
The following table shows the meaning of the error numbers.
The PD4-E is equipped with three LEDs (LINK, RUN, ERR) which indicate the status of the controller on the EtherCAT bus.
The green LINK LED is on if the EtherCAT cable is connected and flashes during data transfer.
The green RUN LED indicates one of the following controller states (EtherCAT slave):
|Permanently off||INIT||The slave is in the initialisation state.|
|Flashing||PRE-OPERATIONAL||The slave is in the PRE-OPERATIONAL state.|
|Single flash||SAFE-OPERATIONAL||The slave is in the SAFE-OPERATIONAL state.|
|Flickering||INITIALISATION or BOOTSTRAP||The slave is in the initialisation phase and has not yet achieved the INIT status or the slave is in boot loader mode and firmware is being loaded.|
|continuously green||OPERATIONAL||The slave is in the OPERATIONAL state.|
The red ERR LED indicates one of the following controller states (EtherCAT slave):
|Permanently off||No error||Not an error|
|Flashing||Invalid Configuration||General configuration error|
|Single flash||Local Error||The slave automatically changed its EtherCAT status due to a local error.|
|Double flash||Process Data Watchdog Timeout/ EtherCAT Watchdog Timeout||Watchdog timeout|
|Triple flash||Application Error||Error in the power state machine of the slave|
|Flickering||Booting Error||Error when loading the firmware|
|continuously red||Application controller failure||The slave no longer responds.|