L1" And "L2" Leds For The Power Supply - Siemens SCALANCE XR524-8C Operating Instructions Manual

Description of the device
3.3 LED display
Setting the display mode
To set the required display mode, press the "SELECT/SET" button.
If you do not press the "SELECT/SET" button for longer than 1 minute, the device
automatically changes to display mode A.
Pressing SELECT/SET button
starting at display mode A
-
Press once
Press twice
Press three times
Press four times
3.3.5

"L1" and "L2" LEDs for the power supply

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
""DM1" and "DM2" LEDs for the display mode (Page 19)".
Voltage limit
For devices with 24 VDC, the voltage limit is 17 VDC.
With devices with 100 to 240 VAC, the voltage limit is 90 VAC.
Meaning in display modes A, B, C and E
In display modes A, B, C and D, from the "L1" and "L2" LEDs you can see whether the
power supply is higher or lower than a certain voltage limit.
Table 3- 1
LED color
-
Green
Table 3- 2
LED color
-
Green
20
For devices with a 24 VDC power supply
L1/L2 LED L1/L2 connector
LED status
Off Power supply lower than 17 VDC
On Power supply higher than 17 VDC
Power supply for devices with 100 to 240 VAC
L1/L2 LED L1/L2 connector
LED status
Off Power supply lower than 90 VAC
On Power supply higher than 90 VAC
LED status
DM1 DM2
Off
On Off
Off On
On
Flashing Off
Operating Instructions, 05/2014, A5E03275845-05
Display mode
Display mode A
Display mode B
Display mode C
Display mode D
Display mode E
SCALANCE XR-500