BLG 4A
Safety Light Curtain
Operating States and Diagnostic Messages
5
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13
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–
Green LED NORMAL OP.:
LED on = no objects have been detected
–
Red LED SAFE:
LED on = an object was detected. In this condition the outputs are OFF (Status SAFE).
The LEDs on the emitter (TX) mean the following:
–
Yellow LED NORMAL OP.
:
LED on = the unit is emitting correctly
–
Green LED POWER ON
:
LED on = e unit is being correctly powered (diagnostic function)
The operator can read the operating status of the light curtains on a display which is present on
both the receiver unit (four LEDs) and the transmitter unit (two LEDs).
The following illustration shows all display conditions of the LEDs:
Figure 8:
1
2
3
Display conditions of the LEDs
1: LED = off
2: LED = on
3: LED = flashing
5.1 Operating mode
5.2 Display
