38
BAS-SVX48H-EN
Table 8. UC400 LEDs (continued)
LED Description
Activities
Indication and
Troubleshooting
Tips
Notes
Binary B01 through
B09
Shows solid yellow.
Indicates a
corresponding binary
output has been
commanded ON.
Relay coil; indicates
that a command has
been made to
energize.
TRIAC; indicates that
a command has been
made to turn ON.
If the user is currently powering the UC400 from a USB port, the Led
lights will turn ON. However, the binary outputs will not be activated.
Commanded ON; As an example of commanded ON, a command
could be a manual command such as an override or a command
could be from TGP2 based on a list of conditions that are met telling
these outputs to turn ON.
LED not lit; Did the user command it to be ON? If yes, see the
Marquee LED at the top of this table.
LED not lit.
Indicates that a relay
output is de-energized
or no power to the
board.
Not lit; cycle power to
reestablish
communication.
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