Configuration, displays and display elements
7.5 LED display
SCALANCE X-300
150 Operating Instructions, 02/2012, A5E01113043-12
Meaning in display mode D
LED Color Status Meaning
_ off Power supply L1 / L2 is not monitored. If L1 / L2 falls below 17 V *
)
, the
signaling contact does not respond.
L1 / L2
green on Power supply L1 / L2 is monitored. If L1 / L2 falls below 17 V *
)
, the
signaling contact responds.
- off Power supplies L1 and L2 are not monitored. If L1 or L2 falls below 17
V, the signaling contact does not respond.
orange on Power supply L1 or L2 is monitored. If L1 or L2 falls below 17 V, the
signaling contact responds.
L
green on Power supplies L1 and L2 are monitored. If L1 and L2 fall below 17 V,
the signaling contact responds.
*
)
) The following applies to the X-300EEC:
• 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:
Limit voltage = 46.5 VDC or 80 VAC
Note
Devices of the X-300EEC product group
When using only one power supply unit 24 VDC and two 24 VDC power supplies, the LEDs
"L1" and "L2" signal the existence of the power supply L1 and L2.
When using two 24 VDC power supply units, the LEDs "L1" and "L2" signal the existence of
the primary voltage and the secondary voltage for both power supply units. If the power
supply is intact, a fault occurring on a power supply unit on the secondary side can be
recognized.
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