Leds - Danfoss VLT 5000 Operating Instructions Manual

The PROFIBUS option card
MG.90.G1.02 - VLT is a registered Danfoss trademark
VLT® 5000/ 5000 FLUX/ 6000 HVAC/
8000 AQUA PROFIBUS

LEDs

There are four LEDs on the PROFIBUS option card:
LD1 and LD4: Flickering (very rapid blinking),
when data are being exchanged
through the option card.
Comment: with each "flicker" of
the LEDs, the frequency converter
is sending a telegram.
LD2 and LD3: Shining, when the option card
is initialized and ready for the
data exchange, or when data
are already being exchanged.
Blinking, when the function
for the automatic baud rate
determination attempts to
determine the current baud rate.
Note: a faulty connection of the
data line may also cause blinking
of the LEDs. (see "Physical
connection").
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