Leds "L1" And "L2 - Siemens SCALANCE XM-400 Operating Instructions Manual

Description of the device
2.7 LED display
2.7.6

LEDs "L1" and "L2"

The "L1" and "L2" LEDs indicate the current range of the power supply at connectors L1 and
L2.
The meaning of the "L1" and "L2" LEDs depends on the set display mode, see section
"LEDs "DM1" and "DM2" (Page 25)".
Meaning in display modes A, B, C and E
In display modes A, B, C and E, from the "L1" and "L2" LEDs you can see whether the
power supply is higher or lower than 17 V.
LED color
-
Green
Meaning in display mode D
In display mode D, the "L1" and "L2" LEDs indicate whether the power supply is monitored.
LED color
-
Green
26
L1/L2 LED L1/L2 connector
LED status
Off Power supply lower than 17 V
On Power supply higher than 17 V
L1/L2 LED L1/L2 connector
LED status
Off Power supply is not monitored.
If the power supply falls below 17 V, the signaling contact does
not respond.
On Power supply is monitored.
If the power supply falls below 17 V, the signaling contact
responds.
Operating Instructions, 05/2014, C79000-G8976-C306-03
SCALANCE XM-400