LEDs

LEDs signal warning messages and error messages. There are three LEDs for each input channel (U_S / U_P):

• Green = no message
• Yellow = warning message. At least one warning threshold value has been exceeded.
• Red = error message. At least one error threshold value has been exceeded.

Precisely one LED lights up per input channel at any one time. If warning messages and error messages are present simultaneously, only the red LED lights up.

Check the Status bits in order to further localize the cause of the warning message or error message.

You can also use the LEDs for offline diagnostics: The LEDs are also active if no EtherCAT Master is present.

You can influence the behavior of the LEDs:

• Change threshold values.
• Disable individual warning messages and error messages.
• Limit LED display to currents or voltages: LED filter.