Leds "L1" And "L2 - Siemens SIMATIC NET Operating Instructions Manual

Description of the device
3.7 LED displays
3.7.4

LEDs "L1" and "L2"

The "L1" and "L2" LEDs indicate the current range of the power supply at connectors "L1"
and "L2".
The colors of the "L1" and "L2" LEDs have the following significance:
● Green
The connected voltage is higher than the monitoring voltage.
● Orange
The connected voltage is higher than 8 V, however lower than the monitoring voltage.
● Off
The connected voltage is lower than 8 V.
LED "L1"
Green
Green
Off
Green
Orange
Orange
Note
Value of the monitoring voltage
For a description of the monitoring voltage, refer to the section "Technical data (Page 43)".
30
LED "L2"
Connector "L1"
Off Higher than the monitoring voltage
Green Higher than the monitoring voltage
Green Lower than 8 V
Orange Higher than the monitoring voltage
Orange higher than 8 V,
but lower than the monitoring voltage
Green higher than 8 V,
but lower than the monitoring voltage
Power supply
Connector "L2"
Lower than 8 V
Higher than the monitoring voltage
Higher than the monitoring voltage
higher than 8 V,
but lower than the monitoring voltage
higher than 8 V,
but lower than the monitoring voltage
Higher than the monitoring voltage
Operating Instructions, 10/2013, C79000-G8976-C297-02
SCALANCE XC100-4OBR