Operating Instructions
IN4000 Standard
Fig. 2: LED
indications for
voltage supply
and operational
status
© SICK AG • Industrial Safety Systems • Germany • Subject to change without notice 8010934/WQ88/2013-01-15
Product description
3.4
LED displays
The safety switches have two LEDs that indicate the
status of the supply voltage and the operational
status.
LED Power,
green
LED Signal,
yellow
LED Signal,
yellow
LED Power,
green
LED Power,
green
3
Chapter
LED Signal,
yellow
159