Chapter 1 CoE Drive Overview ASDA A2-E 1.3 LED Indicators Figure 2. RJ45 LED indicator pattern ERROR (ERR) LED The ERR LED indicator shows the error status of EtherCAT communication. Revision April, 2015 1-3 Indicator Indicator pattern state ON ON OFF Blinking ON OFF 200ms 200ms Single Flash ON OFF 200ms 1000ms OFF ON OFF Indicator state Slave State Off No error Blinking State change error Single Flash Synchronization error SyncManager error On PDI Watchdog timeout