LED Meaning

Description

Only the signal with the highest priority is displayed. The signals are listed in descending priority.

LED 1 (Operating State and Communication)
Name	Signal	Meaning
Failure	Red, static	General error
Communication	Green, alternating with LED off in a ratio of 10:1, 1 s period	IO-Link communication is active. The device is ready.
Ready	Green, static	The device is ready.
Firmware Update	Magenta, alternating with LED off in a ratio of 9:1, 1 s period	Firmware update is in progress. The LED indicates update activity.

LED 2 (Indication/Warning/Teach/Device Discovery)
Name	Signal	Meaning
Locator	Blue, double blink (2×100 ms on, 100 ms pause), then 600 ms off – 1 s cycle	The function Locator can be activated via a system command to find the device again.
Maintenance required	Blue, static	Perform a factory reset
Short Circuit Pin 2 / Pin 4	Red, flashing, 3 Hz	Short circuit at pin 2 or pin 4
Teach-in	Red, static	The device is currently in teach-in mode.
Overload	Orange, flashing, 3 Hz	Overload on pin 2 / pin 4 has been detected.
Bad Signal Quality	Orange, flashing, 1 Hz	Poor signal quality, the signal quality is below the configured warning threshold.
Out of Specification	Yellow, flashing, 3 Hz	The device is operated outside of specifications. The measurement value is unknown due to an error or outside of the measurement range.
Function Display	Yellow, static	Switching point is active.