Siemens SCALANCE X-300 Series Compact Operating Instructions page 36

Device description
4.4 LED display
The "DM" LED for the display mode
The "DM" LED (Display Mode) indicates which of the four display modes A, B, C or D is
currently active. The meaning of the L1, L2 and P1, P2, ... LEDs depends on the display mode.
LED color
-
green
orange
yellow/orange
Selecting the display mode
Press the SELECT/SET button to set the required display mode. If the SELECT/SET button is
not pressed for longer than a minute, the device automatically changes to display mode A.
Pressing the SELECT/SET button
starting at display mode A
-
Press once
Press twice
Press 3 times
The "L1" and "L2" or "L" LEDs for the power supply
Whereas on other devices, the "L1" and "L2" LEDs indicate information about the power, on the
SCALANCE X306-1LD FE, this is done by the "L" LED. A redundant power supply for this
device can be recognized by the color of the LED.
Meaning in display mode A, B or C
LED
L1 / L2
L
* for the X‑300EEC the following applies:
)
● For devices with power supply unit 24 to 48 VDC: Limit voltage = 17 VDC
● For devices with a multiple range power supply unit 100 to 240 VAC / 60 to 250 VDC:
36
Color Status
_ off
green on
- off
orange on
green on
Limit voltage = 46.5 VDC or 80 VAC
LED status
off
on
on
flashes
Status of the "DM" LED
off
lit green
lit orange
flashes yellow/orange
Meaning
Power supply L1 / L2 lower than 17 V *
Power supply L1 / L2 higher than 17 V *
Power supplies L1 and L2 less than 17 V or not connected.
Power supply L1 or L2 higher than 17 V
(no redundant supply).
Power supplies L1 and L2 higher than 17 V
(redundant supply).
Compact Operating Instructions, 11/2019, A5E00982643-18
Meaning
Display mode A
Display mode B
Display mode C
Display mode D
Display mode
Display mode A (default mode)
Display mode B
Display mode C
Display mode D
)
)
SCALANCE X-300