schmersal SLG 425I Series, Operating Instructions Manual, Page: 16 / 18

16 EN
SLG 425I
Operating instructions
Safety light grid
5.5 Cleaning
If the optics cover of the sensors is extremely soiled, the OSSD outputs
can be disabled. Clean with a soft cloth without exercising pressure.
The use of agressive, abrasive or scratching cleaning agents, which
could attack the surface, is prohibited.
6. Diagnostic
6.1 LED status information
Receiver Function LED colour Description
Multifunction
Blanking
Signal reception
Restart
OSSD OFF
OSSD ON
Protection field
Multifunction green Function display, beam coding
Blanking blue Protection field(s) inactive (blanking)
Signal reception orange Evaluation of the signal reception
Restart yellow Input for command device
OSSD OFF red Safety outputs signal condition OFF
OSSD ON green Safety outputs signal condition ON
Transmitter Function LED colour Description
Transmitting Status
Protection field
Transmitting orange Transmitter active
Status green Function display, beam coding
Receiver
LED Status LED Description
OSSD ON ON Protection field clear
Flashing Diagnostic mode active
OSSD OFF ON Protection field interrupted, system or configuration error
Flashing Diagnostic mode active, error output refer to Fault diagnostic table
Restart ON Start or restart interlock (manual reset) active, signal expected at output WA
Signal reception ON/flashing Signal reception too low, check alignment and installation height between
transmitter and receiver
Cleaning the black profile cover
OFF Alignment between transmitter and receiver OK
Blanking 1 flashes Fixed blanking of the protection field(s)
Multifunction 1 flashes Muting (complete protection field)
2 flashes Muting (only teached protection field)
3 flashes Muting through BUS control
4 flashes reserved
5 flashes Beam coding A is active
Transmitter
LED Status LED Description
Transmitting ON Standard operation, transmitter active
Flashing Configuration error
Status Flashing Beam coding A is active